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BWI - STL

$56 Find cheap flights from Baltimore to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Baltimore to St. Louis departing on 6/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/15
Sat 6/22

Search hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baltimore to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baltimore to St. Louis, as well as popular online travel agencies
In the last 7 days travelers have searched 42,211,976 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Cheap flight deals from Baltimore to St. Louis (BWI-STL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Baltimore to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:45 pm - 5:28 pmBWI-STL
19h 43m1 stop
11:57 am - 8:01 pmSTL-BWI
7h 04m1 stop
$99Spirit Airlines
Find Deal
Wed, Jun 5 - Tue, Jun 11
8:15 pm - 7:07 amBWI-STL
11h 52m1 stop
11:57 am - 8:01 pmSTL-BWI
7h 04m1 stop
Sat, Jun 8 - Tue, Jun 11
8:33 pm - 4:32 pmBWI-STL
20h 59m1 stop
11:57 am - 8:01 pmSTL-BWI
7h 04m1 stop
$122Spirit Airlines
Find Deal
Sat, Jun 8 - Tue, Jun 11
9:15 am - 7:08 amBWI-STL
22h 53m1 stop
2:35 pm - 12:16 amSTL-BWI
8h 41m1 stop
Mon, Jun 3 - Tue, Jun 4
5:40 am - 10:24 amBWI-STL
5h 44m1 stop
11:26 am - 11:50 pmSTL-BWI
11h 24m1 stop
$139Spirit Airlines
Find Deal
Tue, Jul 23 - Tue, Jul 30
1:44 pm - 7:08 amBWI-STL
18h 24m2 stops
2:35 pm - 12:16 amSTL-BWI
8h 41m1 stop
Mon, Jun 3 - Tue, Jun 4
8:42 pm - 10:06 pmBWI-STL
26h 24m1 stop
7:44 pm - 2:48 pmSTL-BWI
18h 04m1 stop
$148Frontier
Find Deal
Wed, May 29 - Fri, Jun 7
8:41 pm - 7:08 amBWI-STL
11h 27m1 stop
11:22 pm - 11:33 amSTL-BWI
11h 11m1 stop
$149Frontier
Find Deal
Sat, Jun 1 - Sun, Jun 2
8:42 pm - 10:06 pmBWI-STL
26h 24m1 stop
7:44 pm - 7:47 amSTL-BWI
11h 03m1 stop
$150Frontier
Find Deal
Wed, May 29 - Tue, Jun 4
8:15 pm - 7:07 amBWI-STL
11h 52m1 stop
8:22 pm - 7:45 pmSTL-BWI
22h 23m1 stop
$154Frontier
Find Deal
Sat, Jun 8 - Mon, Jun 10

Flights from Baltimore to St. Louis - Travel Insights & Trends

Get data-powered insights and trends into flights from Baltimore to St. Louis to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Baltimore to St. Louis?

The average price of all flights from Baltimore to St. Louis clicked on KAYAK for each day over the last 12 months.
For Baltimore to St. Louis, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from St. Louis back to Baltimore, the best deals are generally found on Thursday, with Sunday being the most expensive.

What is the cheapest month to fly from Baltimore to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Baltimore to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Baltimore to St. Louis is January, where tickets cost $290 on average. On the other hand, the most expensive months are March and November, where the average cost of tickets is $378 and $355 respectively.

How far in advance should I book a flight from Baltimore to St. Louis?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Baltimore to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Baltimore to St. Louis, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 75 days before departure.

Which airlines provide the cheapest flights from Baltimore to St. Louis?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Baltimore to St. Louis found on KAYAK was with Spirit Airlines for $56. Spirit Airlines proposed a round-trip connection from $99 and Frontier from $148.

Which airlines fly non-stop between Baltimore and St. Louis?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Baltimore to St. Louis.
There is just one airline that flies from Baltimore to St. Louis direct and that is Southwest. The best one-way deal found from Southwest for the route is $326.

How many flights are there between Baltimore and St. Louis per day?

Each day, there are between 7 and 11 nonstop flights that take off from Baltimore and land in St. Louis, with an average flight time of 2h 13m. The most common departure time is 6:00 am and most flights take off in the afternoon. Each week, there are 56 flights. The most frequent day of departure is Sunday, when 20% of all weekly flights depart. The fewest flights depart on a Tuesday.

Which cabin class options are there for flights between Baltimore and St. Louis?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

What’s the earliest departure time from Baltimore to St. Louis?

Early birds can take the earliest flight from Baltimore at 6:15 am and will be landing in St. Louis at 7:30 am.

What’s the latest departure time from Baltimore to St. Louis?

If you prefer to fly at night, the latest flight from Baltimore to St. Louis jets off at 9:20 pm and lands at 10:35 pm.

Good to know

Low season

February

High season

April

Cheapest flight

$56
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Baltimore to St. Louis

When to book flights from Baltimore to St. Louis

Are your dates flexible? Find out the best times to travel from Baltimore to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Baltimore to St. Louis

  • What is the cheapest flight from Baltimore to St. Louis?

    In the last 3 days, the lowest price for a flight from Baltimore to St. Louis was $56 for a one-way ticket and $99 for a round-trip.

  • Do I need a passport to fly between Baltimore and St. Louis?

    No, a passport isn't needed to fly from Baltimore to St. Louis. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Baltimore to St. Louis?

    When flying out of Baltimore you will be using Baltimore/Washington. You will be landing at St. Louis, also known as Lambert-St Louis.

  • Which airlines offer Wi-Fi service onboard planes from Baltimore to St. Louis?

    Only American Airlines offers inflight Wi-Fi service on the Baltimore to St. Louis flight route.

  • Which aircraft models fly most regularly from Baltimore to St. Louis?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Baltimore to St. Louis flight route.

  • On which days can I fly direct from Baltimore to St. Louis?

    There are nonstop flights from Baltimore to St. Louis on a daily basis.

  • Which is the best airline for flights from Baltimore to St. Louis, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Baltimore to St. Louis are Delta and American Airlines. With an average price for the route of $371 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $495 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Baltimore to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Baltimore to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Baltimore to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Baltimore is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Baltimore to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Baltimore with another airline. Booking your flights between Baltimore and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Baltimore to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Baltimore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Baltimore to St. Louis?

Find which airlines fly direct from Baltimore/Washington to Lambert-St Louis, which days they fly and book direct flights.

Nonstop departures

Baltimore/Washington to Lambert-St Louis

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Nonstop returns

Lambert-St Louis to Baltimore/Washington

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights
See more direct flights

Top 5 airlines serving from Baltimore to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Baltimore to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Baltimore to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
SouthwestOverall score based on 6040 reviews
7.3Food
8.3Boarding
8.1Comfort
7.8Entertainment
8.7Crew
Airline reviews

Worse experience especially since there were delays and unreasonable accommodations made

2.0 MediocreAnonymous, Mar 2024DAL - STL
Read more about Southwest reviews

Worse experience especially since there were delays and unreasonable accommodations made

The crew at the gate in Baltimore were rude and intimidating and insensitive to the needs of traveling families. They treated us like nuisance children ruining their day rather than the reasons they were working, paying customers with children who were anxious about the boarding experience. I would only travel Southwest again if it were the only option, especially if traveling with my children.

With COVID still around, I wish they wouldn't bunch us up so much at the boarding gates.

sw cancelled our flight 2 hours before we were to leave. Our bags were already checked. Only communication we had was a text that had a link to reschedule that did not work. When we finally got to front of line ticket agent said they could not get us on a flight until Wednesday. This was Sunday. 3 days. The. They stated since it was “weather” related they would not give us vouchers for food, hotel stay anything. So we had to book on a different airline costing us an extra $1000. Unacceptable.

Pleasant and responsive flight attendants. Adequate drinks menu Good sized, comfortable seats

I never like the fact that if I don't check in exactly 24 hours before the flight time, I get to board C, and that means sitting between 2 individuals. I would like assigned seating in the airplanes.

Two hour delay including one of them on the tarmac second year in a row we’ve had a bad experience. Sad that Southwest is no longer a bargain and has failed to keep up the customer service they were once so famous for.

Everything went smoothly and the plane wasn’t full. It was delayed though. .

Boarding and deboarding painfully slow. Southwest is typically delayed in my experience.

Appreciate that when flight was delayed, our next connection waited for us.

5-hour delay due to storms in Tanoa and airspace restricted by Miami traffic controllers.

A regional sized plane was used for a cross country flight with no overhead bin space. I had to "pink check" my laptop and my medications. I was NOT pleased!!!!

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Best airline! Always friendly and welcoming. Skyclub was great and loved the fast free wifi on board. I also love that you can pre-order your meal on the app!

Atlanta boarding crew at gate were filled with arrogance and were disrespectful. In flight crew showed indifference to the needs of passengers. This is about the flight from ATL to BDL.

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

Flight attendant was incredible. Very efficient, friendly and pleasant. Patricia was one of the best I have ever seen. Please give her a big raise!

LIT to DFW - 3 hours late; the entire plane had been boarded before they told us there was a delay due to a weather-related ground stop in Dallas. DFW to MAY - 2+ hours late due to A/C needing to be repaired after everyone had boarded, then when we finally reach the runway, the First Officer timed out and we had to taxi all the way back to the gate and wait for a new one. I arrived in New Orleans 5+ hours later than I should have. Return flights were completely cancelled; rebooked through the app to fly through CLT instead of DFW. MSY to CLT had no issues, but CLT to LIT was delayed 1.25 hrs because flight attendants had not arrived to the airport yet. At least they didn’t make us all sit on the plane to wait for them. I should have driven.

Tray table was filthy when I sat down. I needed to have someone come clean it because there was food and stains on it WiFi didn’t work after paying for in-flight WiFi. Food was terrible and was not filling at all Chicken was rubbery Flight attendant had an attitude, interrupted me and wasn’t able to answer basic questions about the food selection such as “does the chicken have red sauce in it”. If your flight attendants are not going to know what is in the meals so we can make an educated decision based on dietary restrictions, they shouldn’t be on the plane. My 1.5 year old niece was sleeping and dropped her binkie. I went on the ground under the chairs looking for it. It was at that time that she came up to me as I’m CLEARLY on all 4s with a flashlight and said “I need to get by”. I said one moment please I’m getting something from under the seat (while my head was literally under the seat). Her reply was “no you need to move now” and proceeded to almost push me out of the way. I looked up and all I saw was her toes under my eyes. When I looked in front of me, her private parts were inches away from my face. I then made a comment “you couldn’t waited 2 seconds?” and her response was, “no I need to use the bathroom”. I understand that and would never want to be the reason someone couldn’t get to the bathroom but I was under the seat. She could’ve gone around the other way instead of harassing me, basically placing her private parts on my head and borderline pushing me out of the way. You don’t pay that much for this deplorable experience. This was by far the worst experience I have ever had on American. I will be absolutely thinking twice and thrice about flying American Airlines again. I would rather pay more to fly delta because at least I know their WiFi will work and their flight attendants won’t have a shitty attitude for no reason, nor will they act the way this woman did. Unacceptable.

Liked - nothing. Disliked - delayed 35+ min sitting on the plane. Caused me to miss my connection in Charlotte. American Airlines is the worst US Air Carrier company with atrocious customer service.

Worst situation ever! I booked my tickets for this trip on Alaska Airlines. I guess AA is a partner and we flew nonstop from Eugene to PHX on an AA jet. I had to pay for luggage from PHX to EUG. And this was an Alaska Airlines reservation paid for with Alaska airlines credit card! Got to the PHX airport and was not able to check bags because of some weird issue with the AA software. My reservation had to be the-entered by the agent. I will never pick another American Airlines flight on the Alaska Airlines website. While on vacation, I tried to upgrade our seats for the trip home. The request just buffered and never went through. I tried four times and was charged four times on my credit card. The card was charged but the seats were never changed. What a wreck!

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Never been on this flight as i had missed it due to delayed connecting flight

Horrible. Delays, no customer support and fake promises and everything. i am suffering to help as due to connecting flight getting missed no support on ground and customer support window is closed and we are sitting o ground without anything

Missed our departing flight due to poor baggage drop staff. At the airport with 2 & 1/2 hours to spare and waited in bag check in until 15 minutes prior to gates closing before baggage staff asked us to move to the front of the line. We weren’t the only passengers that missed the flight. Poor organizational operations by Spirit staff. Otherwise , the return trip was fine.

My experience with Spirit was perfect. Did not expect it to be this good

Worst airline experience ever. Lost my IPad going thru security. Charged for my dog carriage at the gate not at ticket counter. Gave away my seat 6D. Expressed I wanted my seat back after charging me 99 for dog carriage. Should have thrown it out. Had a 16 yr old Yorkie heading to Boston after being a snowbird. Seats small. Very bad experience. Still don’t have my IPad. Horrible

My mother was HARASSED AND ACCOSTED by the gate agent for her bag. I pre purchased the bag fee and the gate agent made my 78 year old mother board, deplane, re pay for her bag fee and board again. The gate agent made my mother pick up her own bag and REFUSED to help her, she is an older woman who wasn’t bothering anyone on a flight that had maybe 30’total passengers. I am going to sue this airlines for their HORRIBLE customer service and treatment of my mother, and all this occurred the day after Mother’s Day!!!

The boarding gate was moved so many times that I missed my flight. No attendants would help me. The wrong gate was even on my boarding pass. I had to repurchase everything. I’ll never fly again. Really a terrible day as I had planned to see a former student who is dying in Louisville Never ever will I forget that day. Your airline is totally uncaring.

Horrible, first flight delayed. They switched my connecting flight while I was en route and even though I was originally supposed to be on the flight going back home to boston, refused to let me board and told me I would have to wait for next flight that was 14 hours later. Ended up renting a car and driving 6.5 hours back home. Still getting messages about flight and it is now showing that the other flight they put me on is now canceled and I would have to wait 24 hours for the next one. I will never book with spirit again

Hated it I would not use Kayak or Spirit ever again.

They stuck us with multiple extra fees. I will never fly spirit again

Check in online was easy. Seats aren’t very comfortable

Fecal matter in seat back pocket. Presumably from a kids diaper.

Worst airline to travel with. They treat you like a prisoner in a jailhouse barking out orders and threats. Nickle and dime you to the same price or higher than a respectable airline like one of the big 3 . Might as well fly with standard airlines

Well I mean u get what u pay for so 🤷‍♂️

Over an hour delay in departure but I was notified beforehand. Another delay on tarmac upon arrival at LGA. We ended up departing the plane almost 2 hours later than expected

I fly Frontier because it’s affordable. I understand that the seats are tight and not the most comfortable…but that’s part of it. The problem with this flight was that there was a group of travelers directly behind me at the back of the plane who were ridiculously loud and obnoxious the entire flight. I’m pretty sure they were drunk and I could periodically smell an odd odor that I believe was one of them using a smokeless vape pen. The stewards had to remind them to keep quiet during the pre-flight instruction, but that was it. They never said another thing to them for the rest of the flight. It was a miserable.

I checked a bag because it was $5 less than carry on. They managed to lose my bag on a 2.5 hr direct flight! Frontier has no airport staff at baggage claim to help. As soon as I got home around 11 pm I tried to use their online system to file the claim for lost bag - system wouldn't take the # on my baggage claim ticket - said it was not the correct number. Also said that I had not checked a bag, which wasn't true - even my online boarding pass showed that I had checked a bag. Wasted about an hour on that process with no luck. Tried again in the morning - same thing. So tried online chat with Frontier bot - waited 35-40" twice to be connected to a baggage agent and it never happened. Eventually drove to PDX after work and waited 2 hrs for the Frontier ticket agents to arrive prior to the next Frontier flight out of PDX and FINALLY got some help from one of them, to take me to lost luggage area where I was able to retrive my bag. Probably took 4-5 hrs. of my time and endless frustration to get my bag. This was my first -- and LAST -- experience flying Frontier Airlines. Check-in was also extremely difficult and time consuming. The flight itself (and staff) were fine but everything else about the experience was a total disaster! The fact that Frontier literally has NO WAY to connect to a human voice for customer service (in this case for lost luggage) is the WORST!!!!!

Frontier is a crappy airline nothing about it is honest

I didn't get to do this flight l, hard to review

Not good 😐 Over priced baggage fees Small hard seats No wifi or entertainment options 😕

Book cheap flights from Baltimore to St. Louis

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Baltimore to St. Louis found on KAYAK in the last 72 hours.
6/5Wed
1 stopSpirit Airlines
19h 43mBWI-STL
$56
6/5Wed
2 stopsSpirit Airlines
34h 10mBWI-STL
$70
6/4Tue
1 stopFrontier
11h 54mBWI-STL
$76
5/29Wed
1 stopFrontier
23h 15mBWI-STL
$81
8/9Fri
1 stopSun Country Air
6h 49mBWI-STL
$120
9/19Thu
1 stopSun Country Air
7h 24mBWI-STL
$133
6/14Fri
1 stopDelta
4h 55mBWI-STL
$181
8/15Thu
2 stopsAmerican Airlines
8h 25mBWI-STL
$455
6/15Sat
2 stopsAmerican Airlines
17h 37mBWI-STL
$489
7/13Sat
2 stopsDelta
9h 38mBWI-STL
$645

Search by stops

Search by airline

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Last minute flights from Baltimore to St. Louis

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Baltimore to St. Louis that are departing in the next 10 days.
5/18Sat
multi-stopFrontier
11h 22mBWI-STL
5/28Tue
multi-stopFrontier
11h 09mSTL-BWI
$143
5/21Tue
multi-stopFrontier
24h 42mBWI-STL
5/24Fri
multi-stopFrontier
11h 46mSTL-BWI
$153
5/21Tue
multi-stop
8h 23mBWI-STL
5/21Tue
multi-stop
19h 58mSTL-BWI
$191
5/21Tue
multi-stop
8h 23mBWI-STL
5/22Wed
multi-stop
24h 20mSTL-BWI
$308
5/21Tue
multi-stopSpirit Airlines
26h 12mBWI-STL
5/23Thu
multi-stopSpirit Airlines
27h 26mSTL-BWI
$310
5/18Sat
multi-stopDelta
6h 18mBWI-STL
5/21Tue
multi-stopDelta
5h 57mSTL-BWI
$498
5/18Sat
multi-stopDelta
4h 38mBWI-STL
5/18Sat
multi-stopDelta
5h 01mSTL-BWI
$508
5/18Sat
multi-stopSpirit Airlines
22h 44mBWI-STL
5/28Tue
multi-stopSpirit Airlines
16h 40mSTL-BWI
$520
5/17Fri
multi-stopAmerican Airlines
5h 50mBWI-STL
5/19Sun
multi-stopAmerican Airlines
6h 39mSTL-BWI
$623
5/18Sat
multi-stopAmerican Airlines
4h 06mBWI-STL
5/21Tue
multi-stopAmerican Airlines
9h 49mSTL-BWI
$843

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Search by price

Baltimore - St. Louis Flights

Departure:

Baltimore (undefined)United States

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Baltimore

Cabin classes: