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BUF - STL

$64 Find cheap flights from Buffalo 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 Buffalo to St. Louis departing on 6/6. 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 6/29
Sat 7/6

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 Buffalo 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 Buffalo to St. Louis, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from Buffalo to St. Louis (BUF-STL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo 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
6:52 pm - 2:32 pmBUF-STL
20h 40m1 stop
10:36 pm - 9:26 amSTL-BUF
9h 50m1 stop
$160Frontier
Find Deal
Wed, Jun 19 - Wed, Jun 26
5:54 pm - 8:43 amBUF-STL
15h 49m1 stop
3:47 pm - 5:27 pmSTL-BUF
24h 40m1 stop
$170Frontier
Find Deal
Tue, Jul 16 - Tue, Jul 23
7:55 pm - 7:07 amBUF-STL
12h 12m1 stop
10:36 pm - 9:26 amSTL-BUF
9h 50m1 stop
$185Frontier
Find Deal
Thu, Jun 20 - Wed, Jun 26
10:13 am - 4:48 pmBUF-STL
7h 35m1 stop
5:15 am - 1:05 pmSTL-BUF
6h 50m1 stop
$243American Airlines
Find Deal
Wed, Jun 19 - Tue, Jun 25
2:40 pm - 9:00 pmBUF-STL
7h 20m1 stop
6:11 pm - 12:20 amSTL-BUF
5h 09m1 stop
$256Delta
Find Deal
Tue, Jul 30 - Thu, Aug 1
6:07 am - 12:54 pmBUF-STL
7h 47m1 stop
6:00 pm - 11:56 pmSTL-BUF
4h 56m1 stop
$276Delta
Find Deal
Fri, Nov 8 - Mon, Nov 11
12:42 pm - 5:11 pmBUF-STL
5h 29m1 stop
6:30 am - 12:04 pmSTL-BUF
4h 34m1 stop
$284Sun Country Air
Find Deal
Sun, Jun 9 - Sun, Jun 16
7:00 am - 10:07 amBUF-STL
4h 07m1 stop
11:09 am - 11:45 pmSTL-BUF
11h 36m2 stops
$401United Airlines
Find Deal
Wed, Oct 2 - Wed, Oct 9
10:44 am - 10:07 amBUF-STL
24h 23m3 stops
11:09 am - 4:58 pmSTL-BUF
4h 49m1 stop
$470United Airlines
Find Deal
Wed, Oct 2 - Wed, Oct 9
3:53 pm - 8:36 amBUF-STL
17h 43m2 stops
6:00 am - 11:03 pmSTL-BUF
16h 03m1 stop
$533American Airlines
Find Deal
Thu, Jun 20 - Wed, Jun 26

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

Get data-powered insights and trends into flights from Buffalo 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 Buffalo to St. Louis?

The average price of all flights from Buffalo to St. Louis clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to St. Louis on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Buffalo to St. Louis. For your return ticket, we recommend flying on a Wednesday and avoiding Tuesdays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Buffalo 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 Buffalo to St. Louis is October, where tickets cost $301 on average. On the other hand, the most expensive months are July and November, where the average cost of tickets is $419 and $413 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Buffalo 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 Buffalo to St. Louis, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 39 days before departure.

Which airlines provide the cheapest flights from Buffalo 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 best return deals on flights connecting Buffalo to St. Louis were found on Frontier ($160) and American Airlines ($243). Frontier proposed the cheapest one-way flight at $64.

Good to know

Low season

January

High season

July

Cheapest flight

$64
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Buffalo to St. Louis

When to book flights from Buffalo to St. Louis

Are your dates flexible? Find out the best times to travel from Buffalo 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 Buffalo to St. Louis

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

    In the last 3 days, the lowest price for a flight from Buffalo to St. Louis was $64 for a one-way ticket and $160 for a round-trip.

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

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

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

    Buffalo airport is called Buffalo and the only airport in St. Louis is Lambert-St Louis.

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

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Buffalo to St. Louis?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Buffalo and St. Louis, with SkyTeam being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from Buffalo to St. Louis are Delta and United Airlines. With an average price for the route of $355 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $421 and an overall rating of 7.4.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Buffalo 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 Buffalo 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 Buffalo with another airline. Booking your flights between Buffalo 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 Buffalo 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 Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 4 airlines serving from Buffalo to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Buffalo 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 Buffalo 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.
8.0
DeltaOverall score based on 10457 reviews
7.9Comfort
8.2Boarding
8.6Crew
7.4Food
8.0Entertainment
Airline reviews

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

2.0 MediocreNairan, May 2024JFK - FLL
Read more about Delta reviews

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

Seat back monitors and outlets were dead and not working.

It was a crowded flight. They did the best they could.

Service was good for such a short flight. Small plane but smooth flight.

The flight was delayed but we got to our final destination.

On 2 different flights the wifi was horrible and there was no drink or snack service.

Uncomfortable seats on 14 hour flight. Mediocre food. On time and great crew.

The helpful attitude of the staff, and being a wheelchair passenger everyone was helpful and understanding. The trip was made comfortable by the upgraded seat which was given without my request, that was a great surprise. Thank you Delta.

We just spent $6000 on our first trip since pre COVID and we were stranded on the runway of our departing airport for 2 hours and 15 minutes while our layover was only an hour and a half. We were told by the pilot we were next for de-icing and then got bumped by 3 other planes. Pilot went on to say they only had one guy working the de-icing where they usually have at least 2. In Rochester. In the heart of winter. Someone missed a step and should be fired. I'm not done.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

The Wi-Fi was unavailable on this flight for some reason.

On time take off…US cabins look tired and need of refresh!

Fantastic. Smooth boarding with an infant. Never experienced it with any other carriers.

This was a Lufthansa flight, not United. The CSA at the counter, Ashley, was not only incompetent, but quite rude. Me and two other PAX waited over 7 minutes standing in front of her and another CSA and they ignored us. We joked that we must have accidently taken invisibility pills. She could have at least said "I'll be with you in a moment, I'm currently....". I could go on about how rude she and the other CSAs were (whispering, not communicating with me, blaming the situation on others, etc.). She would not work for me. Then, she gave me literally the worst seat on the plane. the worst. My seat kept getting bumped (rammed twice by the crew with their carts and about every 5 minutes by someone using the bathroom), listening to the bathroom all night, crowded seat, etc.

My seat was broken. WiFi didn’t work. Gate crew at HOU were rude and condescending. Treated all the passengers badly. Bad experience, United.

First flight of the day… MINIMUM FUEL! 15 minute landing delay at HOU due to fog turned into a 2+ hour delay! Rather than circle, they had to divert to another city to refuel! Sat on tarmac at Austin to refuel. We ALL missed our connections! The crew, including pilots, were clueless. Crew was really a mess. At HOU, Untied employees were exceedingly rude to all. It was pitiful.

An hour and a half late is UNACCEPTABLE. The negative impact to our family is unconscionable. And for the price we were forced to pay...

WiFi connected but only let you go to the AA website, not even text messaging worked.

The flight was excellent, provided that we had inclement weather. We departed earlier than scheduled and arrived early. There was a little turbulence, but nothing to be worried about.

pleased with overall experienced, but seats in coach are tight.

Flight delayed, boarding time kept changing, not good. Nee firm information given each time.

Don't often sit in 1st class. Our experience was great.

The 2 hour delay was frustrating but our crew did a great job getting us out quickly and keeping communication especially with the people who had connecting flights

The only problem experienced was a ground stop in Chicago due to weather. But the crew handled everything professionally. They prioritized rebooking those passengers who had connecting flights and then deplaning the other passengers. When the hold was lifted, they efficiently re-boarded all the passengers so that we could depart before our departure limit expired.

It was right on time and crew were very courteous

Their computers were down upon arrival to the airport. They were unable to figure out how to board us. We were delayed over an hour and a half.

Our original flight was delayed and we almost missed our layover. Fortunately they delayed the second flight as well due to the number of people being on both flights so we got lucky. But it was due to mechanical issues which was frustrating.

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

It was ridiculously hard to check in for the flight, and Frontier charged us a LOT of money to have a carry on suitcase, and then told everyone we could not carry on bags and had to check them through at the gate, and didn't refund the extra money we paid to have the suitcase as carry on.

I had a terrible experience with Frontier. I arrived before the 60 minute cut off and was told that Frontier has a two hour window for bags. I was then told the next available flight wasn’t until the end of the day (I had booked a 6am flight). I took a look around and saw other people being told that they could not board their flights or that they had to pay additional fees. I opted to rebook on American Airlines. There’s absolutely no straightforward way to contact Frontier, so this ticket was a complete waste of money. Oh - and the kicker is that the lady lied about the two hour cut off.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

Worst experience I have seen. The flight was cancelled without any reason.

My experience with frontier staff at the Denver airport was absolutely horrible. The manager on duty was even worst if was the worst experience I have ever had, I have never been treated so poorly as a customer in my life! The staff was extremely rude, eye rolls and attitude and then refusal to help me at all. I wish I could never fly frontier again that’s how horrible it was!

The Frontier app wasn’t working. So I could not pay for a carry on the week prior to flying. They charged me 99$ at the gate to carry on a duffle bag.

Good for the price. My only complaint is that the pilot should keep the air flowing while passengers are waiting to getting out of airplane.

Plane could have been more on time. More leg room .

I arrived 1 hour prior to boarding, and they said I was too late for a domestic flight. First time I heard that :-(

Book cheap flights from Buffalo to St. Louis

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Buffalo to St. Louis found on KAYAK in the last 72 hours.
6/6Thu
1 stopFrontier
12h 12mBUF-STL
$64
10/19Sat
1 stopAmerican Airlines
4h 16mBUF-STL
$137
7/7Sun
1 stopSun Country Air
5h 22mBUF-STL
$191
10/19Sat
2 stopsUnited Airlines
15h 12mBUF-STL
$264
6/6Thu
2 stopsAmerican Airlines
8h 34mBUF-STL
$292
7/7Sun
3 stops
28h 45mBUF-STL
$309
6/6Thu
2 stopsAmerican Airlines
8h 34mBUF-STL
$352

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Last minute flights from Buffalo 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 Buffalo to St. Louis that are departing in the next 10 days.
6/3Mon
multi-stopFrontier
12h 35mBUF-STL
6/5Wed
multi-stopFrontier
9h 50mSTL-BUF
$318
6/1Sat
multi-stopFrontier
28h 30mBUF-STL
6/4Tue
multi-stopFrontier
18h 08mSTL-BUF
$408
6/3Mon
multi-stopAmerican Airlines
5h 50mBUF-STL
6/5Wed
multi-stopAmerican Airlines
9h 37mSTL-BUF
$648
6/1Sat
multi-stopAmerican Airlines
9h 21mBUF-STL
6/4Tue
multi-stopAmerican Airlines
4h 50mSTL-BUF
$681
6/1Sat
multi-stopDelta
9h 14mBUF-STL
6/4Tue
multi-stopDelta
7h 57mSTL-BUF
$941

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Buffalo - St. Louis Flights

Departure:

Buffalo (BUF)United States

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Buffalo

Cabin classes: