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Find cheap flights from Washington, D.C. to Illinois from $34

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Illinois departing on 7/20. 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

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Best Illinois Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Chicago
Chicagononstop$58
Moline
Moline1 stop$223
Peoria
Peoria1 stop$268
Bloomington
Bloomington1 stop$288
Champaign
Champaign1 stop$598
Springfield
Springfield1 stop$268
Decatur
Decatur1 stop$259
St. Louis
St. Louis1 stop$99

Good to know

Low season

January

High season

June

Cheapest flight

$34
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 5% increase in price.
Flight from Baltimore to Chicago Midway Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Washington, D.C. to Illinois?

    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 Washington, D.C. to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois from Washington, D.C. 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 Washington, D.C. to Illinois?

    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 Illinois with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Illinois?

    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 Illinois from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Illinois

  • Morning departure is around 14% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Washington, D.C. to Illinois

 
Need help choosing which airline to fly with from Washington, D.C. to Illinois? 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.
7.6
JetBlueOverall score based on 4472 reviews
7.8Boarding
8.3Crew
7.5Entertainment
7.2Food
7.9Comfort
Airline reviews

Delayed departure. Delayed after landing pulling into gate. Delay due to sky bridge malfunction

4.0 OkayBrett, May 2024PBI - PVD
Read more about JetBlue reviews

Delayed departure. Delayed after landing pulling into gate. Delay due to sky bridge malfunction

Great. Loved that there was WiFi on flight to keep in touch and excellent service of beverages and snacks.

Business class is great. New airplane, very comfortable, better than some of the major airlines I am used to

Terrible. Flight was cancelled due to the weather in the east and sout east(florida). Did not get any compesation of any kind. According to them, it was not under their control so I lost all the money paid for the 2 fairs from Raleigh, NC to Orlando, Fl.

great flight. Pilot was communicative, flight attendants were excellent. Really nice experience except my tv didn’t work.

Overall, the flight was better than the flight I took to go to Florida, which had a bunch of problems. The crew is really nice and the plane was new so it had a small problem when we were on the runway, but the flight itself was great. They even made some time back up, which is always a good thing.

There were multiple delays but JetBlue tried to make the boarding and departure process as quick and efficient as possible. The crew was as detached from reality as could be, meaning: not very friendly and just doing things by the numbers.

I had back trouble prior to my flight and everyone was great about helping me.

40 minute delay before take off after boarding flight. Bright lights throughout night flight due Issues with light panels. In flight Entertainment nonfunctional

Everything was good except for deplaning in NY. Took way too long!!

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

they made me check my carryon. There was space in the overhead bins.

The plane was delayed 2 hours. The wifi did not work. The seat in first class was not comfortable because the bottom felt like it lost all of its padding. And I did not like when the flight attendant made me wait at my seat to use the bathroom and didn't tell me why. If there were too many people using the 1st Class bathroom, she should have told me to go in the back, coach bathrooms. I guess I have to feel fortunate that they found 2 local pilots to still fly the plane tonight after the original pilots ended up at an airport 60 miles away due to high winds.

The crew were really great, but the 4 hour delay in small chunks was the worst.

Just a crappy airline. The same every time. You feel you are a cow on a farm. You are being being whipped and pulled.

Wasn’t very crowded. Seamless processes. No issues traveling with two little kids.

My interaction with the flight attendent Eve was horrible. I was seated in 3F and was blown away watching her repeatedly skip me as she took other customer orders for lunch...she took the customer next to me but skipped me, then took everyone's order around me (in front of and behind me) . After she had taken every customer's orders to include those behind me, she came to me and said we are out of everything except one last item. I was mortified, in that, I am a 1k flyer, had pre-ordered AND as an African American could only assume why she repeatedly skipped me...mortified. no words

The Flight was good, pilot seemed very skillful. My wheel chair sister who could barely walk was allotted the second last seat in the aircraft, with great difficulty she managed to reach on her seat, as she required attendance we were given separate seat, even on request no one cared, so much so there were single passengers who were given twin seats. May not be taken as complaint but a reminder to the checkin staff to keep in mind in future the allottment of wheel chair passengers seats.

Almost 2 hour delay in boarding with all standing ready to board at original time. No explanation given.

Overall the flights pretty good. The snacks we’re good and they were plenty of them. Both boarding and deplaning went quickly.

Delayed abs delayed Gate crew giving poor info - we are definitely leaving at —- Ultimately to cancel flight after 4+ hours of delays Just cancel it earlier

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

Lots of weather delays that were poorly communicated and managed. I get there are weather delays but they didn’t make it clear what was happening or comfortable on the plane

Everything was on time; the flight attendants and the gate personnel were very pleasant and helpful.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Perfect flight. On time departure and early arrival. Smooth flight.

Awful! The flight was delayed and we sat on the plane in DCA for an hour because fuel was out in the wrong part of the plane and would not be accessible during flight. So the plane had to be refueled in correct tank. They also allowed someone to get off of the plane. This delayed my six hour flight by an hour and made me miss my connecting flight. I ran to new gate and American Airlines agents new about the delay and even knew that I was trying to make the connection. They knew thru communication with my friend while in flight that I was in the airport and running to the new gate and they still closed the gate and refused to let me on the new flight despite plane still being at the gate. It was horrible and I had to be rebooked on a flight for 24 hours later. This has been a nightmare and if American Airlines can cause customers to be delayed and then have zero empathy as having an on time flight was more important to them than helping a customer who was delayed by no fault of her own, then it's seems that it's not a company that I want to continue to give my loyalty to. I'm so disgusted.

Help was available but timing was bad in my case

It was a horrible snow storm, but updates were inconsistent and the app never displayed a remotely accurate time or gate until very close to boarding.

Crew was nice, explained emergency protocol very well. Flight took off and arrived on time. Pilot explained the small delay that occurred with docking and providing updates. I would definitely fly spirit again.

The seat are terrible. Don’t even think of sleeping on a Spirit flight. The kids that run the plane aka flight attendants are pretty rude and straight forward. They get the job done but without class.

I had a death in my family and booked my flight on Spirit. My flight was cancelled the morning of my flight, no explanation, no help to rebook, nobody to talk to. The next available flight was 2days later !!!! Terrible airline, will NEVER fly with them again!

They took a horrible route with a lot of turbulence and I eneded up getting sick. Even if the flight takes longer. Don't put people life at risk just to get to the airport on time.

Every thing was fine ,low price,easy on time ,clean, good staff, really no issues

Had to board plan 2x due to lack of security check after 1st boarding

Miserable. The crew was rude, the flight was delayed 5 hours for mechanical reasons and then “weather” even though other planes were leaving.

They kept Changing the flight times. It was delayed several times and at one point it was supposed to depart at 3.40am! At which point we ended up staying overnight and booked long a separate United flight for early morning departure. The spirit flight then got moved up and left at 1.30 in the morning when it was supposed to leave at 9.40pm the night before.

Flight was delayed...not horribly late. Just before push back engine shut down for a quick replacement item that took about five minutes. After that, everything was smooth and the pilot was able to make up time in the air so that our arrival time was not too far off the original anticipated arrival time.

Only inflight purchases for food and water. Nothing comes with ticket price. Have to purchase bags, food...

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 Washington, D.C. to Illinois

Recent round-trip flight deals

8/10Sat
nonstopFrontier
1h 56mBWI-MDW
8/14Wed
nonstopFrontier
1h 51mMDW-BWI
$58
9/14Sat
nonstopFrontier
1h 59mBWI-MDW
9/18Wed
nonstopFrontier
1h 51mMDW-BWI
$60
9/11Wed
nonstopFrontier
1h 59mBWI-MDW
9/14Sat
nonstopFrontier
1h 51mMDW-BWI
$61
6/5Wed
1 stopSpirit Airlines
10h 43mBWI-ORD
6/5Wed
1 stopSpirit Airlines
12h 55mORD-BWI
$81
6/4Tue
1 stopSpirit Airlines
11h 45mBWI-ORD
6/5Wed
1 stopSpirit Airlines
7h 13mORD-BWI
$91
8/23Fri
nonstopAmerican Airlines
2h 13mBWI-ORD
9/1Sun
nonstopAmerican Airlines
1h 55mORD-BWI
$157
5/30Thu
nonstopUnited Airlines
2h 10mIAD-ORD
5/31Fri
nonstopUnited Airlines
1h 59mORD-IAD
$169
9/4Wed
nonstopAmerican Airlines
2h 16mDCA-ORD
9/7Sat
nonstopAmerican Airlines
1h 49mORD-DCA
$169
5/30Thu
nonstopUnited Airlines
2h 11mDCA-ORD
5/31Fri
1 stopUnited Airlines
4h 37mORD-DCA
$179
5/28Tue
1 stopJetBlue
5h 50mDCA-ORD
6/1Sat
1 stopJetBlue
5h 01mORD-DCA
$346

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Recent one-way flight deals

7/20Sat
nonstopFrontier
1h 59mBWI-MDW
$34
7/6Sat
nonstopFrontier
1h 56mBWI-MDW
$37
5/21Tue
1 stopSpirit Airlines
12h 09mBWI-ORD
$51
6/5Wed
1 stopSpirit Airlines
19h 43mBWI-STL
$56
5/30Thu
nonstopUnited Airlines
2h 11mBWI-ORD
$65
6/5Wed
nonstopAmerican Airlines
2h 18mBWI-ORD
$79
5/31Fri
nonstopUnited Airlines
2h 11mBWI-ORD
$83
5/30Thu
nonstopAmerican Airlines
2h 15mDCA-ORD
$85
9/4Wed
1 stopJetBlue
8h 34mDCA-ORD
$92
8/19Mon
1 stopJetBlue
8h 59mDCA-ORD
$98

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Last minute flights from Washington, D.C. to Illinois

Last minute flight, train and bus deals

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-stopSpirit Airlines
12h 09mBWI-ORD
5/28Tue
multi-stopSpirit Airlines
13h 02mORD-BWI
$173
5/21Tue
multi-stopSpirit Airlines
12h 09mBWI-ORD
5/28Tue
multi-stopSpirit Airlines
19h 12mORD-BWI
$175
5/18Sat
nonstopAmerican Airlines
2h 20mDCA-ORD
6/17Mon
nonstopAmerican Airlines
2h 08mORD-DCA
$339
5/18Sat
multi-stopAmerican Airlines
4h 19mDCA-ORD
6/5Wed
nonstopAmerican Airlines
1h 49mORD-DCA
$347
5/19Sun
nonstopUnited Airlines
2h 09mIAD-ORD
6/3Mon
nonstopUnited Airlines
2h 02mORD-IAD
$382
5/18Sat
nonstopUnited Airlines
2h 14mIAD-ORD
6/5Wed
nonstopUnited Airlines
1h 55mORD-IAD
$389
5/17Fri
multi-stopJetBlue
6h 00mDCA-ORD
5/18Sat
multi-stopJetBlue
6h 03mORD-DCA
$768
5/17Fri
multi-stopJetBlue
6h 00mDCA-ORD
5/24Fri
multi-stopJetBlue
5h 01mORD-DCA
$893

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