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Find cheap flights from Buffalo to Illinois from $69

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 Illinois departing on 6/4. 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
Thu 6/27
Thu 7/4

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Best Illinois Flight Deals

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

Chicago
Chicago1 stop$171
Moline
Moline1 stop$379
St. Louis
St. Louis1 stop$238

Good to know

Low season

January

High season

August

Cheapest flight

$69
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Buffalo to Chicago Midway Airport

FAQs - booking Illinois flights

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois 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 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 Buffalo with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buffalo 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 Buffalo 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

  • Looking for a cheap flight? 25% of our users found tickets from Buffalo to the following destinations at these prices or less: Chicago $178 one-way - $375 round-trip
  • Morning departure is around 3% 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 Buffalo to Illinois

 
Need help choosing which airline to fly with from Buffalo 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.
8.0
DeltaOverall score based on 10502 reviews
7.4Food
8.0Entertainment
8.2Boarding
7.9Comfort
8.6Crew
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.

I usually have a positive experience with Delta. Complimentary upgrades are always nice!

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.

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 was excellent. The crew was welcoming and attentive.

Run out of snack choices. Why are the seats not padded for your butt? Are we sitting on blocks of wood or metal for $250-300 a pop? This ain’t spirit. Let’s get it together people

Going through JFK’s security is a mess. The TSA security said no shoes on the bins. So, we place our shoes in the belt and they came out all over the belt. Boarding was delayed and Flight as well.

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.

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

Another horrible Jet Blue experience. This airline has suffered the biggest decline of all from best to worst. TVs didn’t work (again). internet was temperamental. Boarded late and couldn’t get organized to serve snacks.

I hate their constant delays! It’s as if I cannot confidently make plans for timing when I'm traveling with them. I slept through it, so all I can say is it was good.

There was no wheelchair or wheelchair escort at the gate..unacceptable

No WiFi No TV Bag of chips I guess it could be worse.

From bag drop to boarding, it was great. In-flight is a little different. The seats were a little uncomfortable for that long of a flight. The rest of the cabin crew except for Eva was wonderful. Eva was not friendly at all. I've had to personally encounter her twice in-flight. First time was when I had to go to the lavatory in the back of the plane, and since it was the first for me to board such tiny plane, I didn't know we were using the crew toilet. She was giving me an attitude while telling me where and how to open it since it's not the regular push to open type of door. The second one was when I had to throw trash then use the lavatory again. I asked where to throw them, and unfortunately she was the only crew in the back doodling on her phone, she had to point it out to me with an attitude then told me to wait on the carpet, which I understand because I didn't realize that, but she could have been nicer. After all, I'm a paying customer, and assisting a passenger who isn't knowledgeable about the aircraft is one of the things she's there for. The rest of the experience and crew from bag drop to in-flight were excellent except for her.

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

The flight was delayed instead of leaving at 11 it left at 12.20

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Good movies, iffy pay WiFi, food ok- on time though and that was great!

Awful…flight was delayed more than 12hrs, missed all connections to Fort Wayne, IN, had to get flight to another city 2 hours from my destination, flight was again delayed by 40 mins because they did not have enough fuel, again missed a connection, finally arrived in Indiana at 11pm…but before my 2 hour drive home, ay, no Five That Our Luggage Never Made On The plane and Still In Chicago

Boarding was friendly and quick. While the plane model was older with no live tv, the entertainment was full of movies and tv shows. All food was available. Pilots were very communicative with status of the flight. Flight landed on time.

Flight was delayed by over an hour and gate checked bags took 15 minutes to be delivered to the jet bridge.

The Palm Springs to Chicago O’Hare was on Time and Palm Springs airport is easier navigate. As our connection was only an approximately 50 minutes, we asked staff for insights for the Chicago airport in terms of transferring into the other terminal from which our flight left, and they were unhelpful. However, the United App was very helpful in terms of notifications and even providing directions. The Chicago to Detroit flight was significantly delayed which we all know does happen. However, there were very few updates or notifications as to why this was happening when we would actually arrive. It took nearly 30 minutes for bags to make it to baggage claim. We arrived nearly 1 hour late on a 40 minute flight.

Flight cancelled due to fog. No other flights available for 36 hours. Directed by United to book passage on another carrier, and submit receipts for reimbursement. Did that. United now states they will not reimburse. Currently out 2 grand.

The CX617 from HK to BKK was delayed more than 1.5 hours.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

Average - flew with Jet Blue internal and it was far more comfortable and better food and entertainment. Notable difference

The flight got canceled due to mechanical issues, and he to be rebooked and missed my appointments for that day

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.

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.

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.

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 :-(

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

Book cheap flights from Buffalo to Illinois

Recent round-trip flight deals

8/27Tue
1 stopFrontier
10h 47mBUF-MDW
8/31Sat
1 stopFrontier
10h 46mMDW-BUF
$171
6/15Sat
1 stopFrontier
26h 46mBUF-ORD
6/19Wed
1 stopFrontier
4h 45mORD-BUF
$187
8/21Wed
1 stopJetBlue
7h 28mBUF-ORD
8/22Thu
1 stopJetBlue
6h 09mORD-BUF
$203
6/29Sat
nonstopAmerican Airlines
1h 50mBUF-ORD
6/29Sat
nonstopAmerican Airlines
1h 36mORD-BUF
$205
8/20Tue
1 stopJetBlue
7h 28mBUF-ORD
8/24Sat
1 stopJetBlue
8h 48mORD-BUF
$227
6/19Wed
nonstopAmerican Airlines
1h 49mBUF-ORD
6/22Sat
nonstopAmerican Airlines
1h 36mORD-BUF
$229
6/26Wed
nonstopUnited Airlines
1h 52mBUF-ORD
7/3Wed
nonstopUnited Airlines
1h 50mORD-BUF
$251
6/20Thu
nonstopUnited Airlines
1h 52mBUF-ORD
6/25Tue
nonstopUnited Airlines
1h 39mORD-BUF
$265
8/21Wed
1 stopDelta
3h 40mBUF-ORD
8/21Wed
1 stopDelta
5h 50mORD-BUF
$270
7/30Tue
1 stopDelta
3h 56mBUF-ORD
8/1Thu
1 stopDelta
4h 00mORD-BUF
$280

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Recent one-way flight deals

6/4Tue
1 stopFrontier
15h 55mBUF-MDW
$69
6/5Wed
1 stopFrontier
27h 53mBUF-MDW
$70
6/18Tue
1 stopJetBlue
5h 17mBUF-ORD
$101
6/18Tue
nonstopUnited Airlines
1h 52mBUF-ORD
$103
11/5Tue
1 stopAmerican Airlines
4h 24mBUF-STL
$122
8/3Sat
nonstopAmerican Airlines
1h 52mBUF-ORD
$125
8/7Wed
1 stopDelta
3h 23mBUF-MDW
$134
6/18Tue
1 stopDelta
5h 50mBUF-MDW
$136
7/6Sat
1 stopJetBlue
5h 10mBUF-ORD
$160
7/6Sat
nonstopUnited Airlines
1h 50mBUF-ORD
$195

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Last minute flights from Buffalo to Illinois

Last minute flight, train and bus deals

5/31Fri
multi-stopFrontier
4h 59mBUF-ORD
6/5Wed
multi-stopFrontier
4h 45mORD-BUF
$176
5/31Fri
multi-stopFrontier
4h 59mBUF-ORD
6/4Tue
multi-stopFrontier
6h 30mORD-BUF
$178
5/31Fri
multi-stopFrontier
4h 59mBUF-ORD
6/3Mon
multi-stopFrontier
4h 46mORD-BUF
$212
6/1Sat
multi-stopFrontier
28h 30mBUF-STL
6/4Tue
multi-stopFrontier
18h 08mSTL-BUF
$214
5/31Fri
nonstopAmerican Airlines
1h 52mBUF-ORD
6/5Wed
nonstopAmerican Airlines
1h 36mORD-BUF
$542
5/31Fri
nonstopAmerican Airlines
1h 52mBUF-ORD
6/5Wed
multi-stopAmerican Airlines
5h 50mORD-BUF
$550
5/31Fri
nonstopUnited Airlines
1h 57mBUF-ORD
6/3Mon
nonstopUnited Airlines
1h 39mORD-BUF
$610
5/31Fri
multi-stopUnited Airlines
4h 21mBUF-ORD
6/3Mon
nonstopUnited Airlines
1h 50mORD-BUF
$620
5/31Fri
multi-stopDelta
3h 46mBUF-MDW
6/2Sun
multi-stopDelta
4h 12mMDW-BUF
$628
6/1Sat
multi-stop
19h 41mBUF-ORD
6/8Sat
multi-stop
22h 19mORD-BUF
$1,108

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Buffalo - Illinois Flights

Departure:

Buffalo (BUF)United States

Return flight deals:

Illinois - Buffalo

Cabin classes:

$727
$849
$1,160
$269