Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights
Airlines

BUF - ORD

C$ 96 Find cheap flights from Buffalo to Chicago

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 O'Hare Intl departing on 9/11. 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

Search hundreds of travel sites at once for deals on flights to Chicago

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Chicago, 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 Chicago, as well as popular online travel agencies
In the last 7 days, travellers have searched 46,479,581 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheap flight deals from Buffalo to Chicago (BUF-ORD)

 
These are the cheapest deals for flights from Buffalo to O'Hare Intl currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Buffalo to O'Hare Intl

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Buffalo to O'Hare Intl.

Recent one-way flight deals from Buffalo to O'Hare Intl

Only flying one-way? Below are some of the best one-way flight deals from Buffalo to O'Hare Intl found on KAYAK recently.

Recent last-minute flight deals from Buffalo to O'Hare Intl

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Buffalo to O'Hare Intl.

Recent direct flight deals from Buffalo to O'Hare Intl

The latest deals for direct flights from Buffalo to O'Hare Intl so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Buffalo to O'Hare Intl

Find recent round-trip train or bus tickets from Buffalo to O'Hare Intl.

All round-trip flight deals to O'Hare Intl

The cheapest plane tickets to O'Hare Intl found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:23 a.m. - 1:45 p.m.BUF-ORD
8h 22m1 stop
6:13 a.m. - 3:49 p.m.ORD-BUF
8h 36m1 stop
C$ 282American Airlines
Find Deal
Thu, 6 Feb - Tue, 11 Feb
10:45 a.m. - 7:25 p.m.BUF-ORD
9h 40m1 stop
12:15 p.m. - 10:59 p.m.ORD-BUF
9h 44m1 stop
C$ 310Delta
Find Deal
Wed, 5 Feb - Tue, 11 Feb
5:50 p.m. - 6:47 p.m.BUF-ORD
1h 57mdirect
6:15 p.m. - 9:00 p.m.ORD-BUF
1h 45mdirect
C$ 319United Airlines
Find Deal
Thu, 5 Dec - Sun, 8 Dec
10:10 a.m. - 3:53 p.m.BUF-ORD
6h 43m1 stop
10:14 a.m. - 6:47 p.m.ORD-BUF
7h 33m1 stop
C$ 331JetBlue
Find Deal
Wed, 4 Dec - Sat, 7 Dec
7:50 p.m. - 11:20 p.m.BUF-ORD
4h 30m1 stop
10:35 a.m. - 1:11 p.m.ORD-BUF
1h 36mdirect
C$ 333United Airlines
Find Deal
Fri, 13 Dec - Sun, 15 Dec
12:26 p.m. - 11:18 p.m.BUF-ORD
11h 52m1 stop
5:15 a.m. - 3:01 p.m.ORD-BUF
8h 46m1 stop
C$ 345Frontier
Find Deal
Fri, 22 Nov - Mon, 25 Nov
6:30 p.m. - 9:24 a.m.BUF-ORD
15h 54m1 stop
8:30 a.m. - 6:24 p.m.ORD-BUF
8h 54m1 stop
C$ 349Delta
Find Deal
Fri, 7 Feb - Tue, 11 Feb
6:10 a.m. - 1:00 p.m.BUF-ORD
7h 50m2 stops
6:15 a.m. - 12:10 p.m.ORD-BUF
4h 55m1 stop
C$ 352Southwest
Find Deal
Wed, 4 Dec - Sat, 7 Dec
7:45 a.m. - 2:00 p.m.BUF-ORD
7h 15m1 stop
5:45 a.m. - 1:30 p.m.ORD-BUF
6h 45m1 stop
C$ 387Southwest
Find Deal
Fri, 6 Dec - Sun, 8 Dec
10:10 a.m. - 4:08 p.m.BUF-ORD
6h 58m1 stop
8:41 a.m. - 5:05 p.m.ORD-BUF
7h 24m1 stop
C$ 530JetBlue
Find Deal
Thu, 14 Nov - Mon, 18 Nov
4:19 p.m. - 9:45 p.m.BUF-ORD
6h 26m1 stop
C$ 96Frontier
Find Deal
Sat, 9 Nov
6:00 a.m. - 10:11 a.m.BUF-ORD
5h 11m1 stop
C$ 129JetBlue
Find Deal
Tue, 25 Feb
9:48 a.m. - 5:53 p.m.BUF-ORD
9h 05m1 stop
C$ 138JetBlue
Find Deal
Tue, 7 Jan
7:00 a.m. - 7:57 a.m.BUF-ORD
1h 57mdirect
C$ 160United Airlines
Find Deal
Wed, 18 Dec
7:50 p.m. - 11:20 p.m.BUF-ORD
4h 30m1 stop
C$ 173United Airlines
Find Deal
Sat, 14 Dec
6:10 a.m. - 1:00 p.m.BUF-ORD
7h 50m2 stops
C$ 179Southwest
Find Deal
Tue, 10 Dec
11:55 a.m. - 4:40 p.m.BUF-ORD
5h 45m1 stop
C$ 207Delta
Find Deal
Wed, 25 Dec
1:35 p.m. - 10:00 p.m.BUF-ORD
9h 25m2 stops
C$ 214Southwest
Find Deal
Tue, 24 Dec
6:10 a.m. - 9:09 a.m.BUF-ORD
3h 59m1 stop
C$ 256Delta
Find Deal
Sat, 28 Dec
6:17 p.m. - 7:13 p.m.BUF-ORD
1h 56mdirect
C$ 335American Airlines
Find Deal
Sat, 9 Nov
1:50 p.m. - 2:49 p.m.BUF-ORD
1h 59mdirect
6:06 p.m. - 8:47 p.m.ORD-BUF
1h 41mdirect
C$ 896United Airlines
Find Deal
Sat, 2 Nov - Sat, 2 Nov
7:00 a.m. - 7:57 a.m.BUF-ORD
1h 57mdirect
2:10 p.m. - 4:51 p.m.ORD-BUF
1h 41mdirect
C$ 903United Airlines
Find Deal
Fri, 1 Nov - Sun, 3 Nov
5:50 p.m. - 6:47 p.m.BUF-ORD
1h 57mdirect
3:45 p.m. - 11:14 p.m.ORD-BUF
6h 29m1 stop
C$ 917United Airlines
Find Deal
Fri, 1 Nov - Sun, 3 Nov
6:00 a.m. - 10:44 a.m.BUF-ORD
5h 44m1 stop
11:51 a.m. - 6:01 p.m.ORD-BUF
5h 10m1 stop
C$ 929United Airlines
Find Deal
Fri, 1 Nov - Mon, 4 Nov
5:40 a.m. - 2:00 p.m.BUF-ORD
9h 20m1 stop
11:25 a.m. - 8:30 p.m.ORD-BUF
8h 05m2 stops
C$ 936Southwest
Find Deal
Fri, 1 Nov - Mon, 4 Nov
5:40 a.m. - 1:00 p.m.BUF-ORD
8h 20m2 stops
11:25 a.m. - 10:15 p.m.ORD-BUF
9h 50m2 stops
C$ 943Southwest
Find Deal
Fri, 1 Nov - Mon, 4 Nov
6:00 a.m. - 10:44 a.m.BUF-ORD
5h 44m1 stop
6:00 p.m. - 9:56 a.m.ORD-BUF
14h 56m2 stops
C$ 975United Airlines
Find Deal
Tue, 5 Nov - Tue, 5 Nov
3:18 p.m. - 8:21 p.m.BUF-ORD
6h 03m1 stop
10:10 a.m. - 5:56 p.m.ORD-BUF
6h 46m1 stop
C$ 1,013Delta
Find Deal
Sat, 2 Nov - Sun, 3 Nov
7:50 p.m. - 10:39 a.m.BUF-ORD
15h 49m2 stops
4:50 p.m. - 11:14 p.m.ORD-BUF
5h 24m1 stop
C$ 1,059United Airlines
Find Deal
Sat, 2 Nov - Mon, 4 Nov
6:10 a.m. - 1:00 p.m.BUF-ORD
7h 50m2 stops
3:10 p.m. - 8:30 p.m.ORD-BUF
4h 20m1 stop
C$ 1,092Southwest
Find Deal
Mon, 4 Nov - Mon, 4 Nov
5:50 p.m. - 6:47 p.m.BUF-ORD
1h 57mdirect
6:15 p.m. - 9:00 p.m.ORD-BUF
1h 45mdirect
C$ 319United Airlines
Find Deal
Thu, 5 Dec - Sun, 8 Dec
7:00 a.m. - 7:58 a.m.BUF-ORD
1h 58mdirect
7:19 p.m. - 10:04 p.m.ORD-BUF
1h 45mdirect
C$ 353American Airlines
Find Deal
Fri, 22 Nov - Mon, 25 Nov
5:50 p.m. - 6:47 p.m.BUF-ORD
1h 57mdirect
6:15 p.m. - 9:00 p.m.ORD-BUF
1h 45mdirect
C$ 402United Airlines
Find Deal
Sat, 7 Dec - Mon, 9 Dec
7:00 a.m. - 7:57 a.m.BUF-ORD
1h 57mdirect
6:15 p.m. - 9:00 p.m.ORD-BUF
1h 45mdirect
C$ 437United Airlines
Find Deal
Thu, 28 Nov - Tue, 3 Dec
5:50 p.m. - 6:47 p.m.BUF-ORD
1h 57mdirect
6:06 p.m. - 8:47 p.m.ORD-BUF
1h 41mdirect
C$ 476United Airlines
Find Deal
Wed, 20 Nov - Mon, 25 Nov
7:00 a.m. - 8:03 a.m.BUF-ORD
2h 03mdirect
10:36 a.m. - 1:16 p.m.ORD-BUF
1h 40mdirect
C$ 486United Airlines
Find Deal
Tue, 4 Feb - Tue, 18 Feb
7:00 a.m. - 7:57 a.m.BUF-ORD
1h 57mdirect
6:20 p.m. - 9:01 p.m.ORD-BUF
1h 41mdirect
C$ 487United Airlines
Find Deal
Sat, 14 Dec - Sat, 21 Dec
7:00 a.m. - 7:57 a.m.BUF-ORD
1h 57mdirect
6:06 p.m. - 8:47 p.m.ORD-BUF
1h 41mdirect
C$ 537United Airlines
Find Deal
Fri, 15 Nov - Sun, 17 Nov
7:00 a.m. - 7:57 a.m.BUF-ORD
1h 57mdirect
10:35 a.m. - 1:11 p.m.ORD-BUF
1h 36mdirect
C$ 562United Airlines
Find Deal
Thu, 5 Dec - Thu, 5 Dec
5:58 p.m. - 6:55 p.m.BUF-ORD
1h 57mdirect
2:10 p.m. - 4:51 p.m.ORD-BUF
1h 41mdirect
C$ 563United Airlines
Find Deal
Sat, 16 Nov - Sun, 17 Nov

Flights from Buffalo to O'Hare Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from Buffalo to O'Hare Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Buffalo to Chicago O'Hare Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Buffalo to Chicago O'Hare Intl Airport, 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 Chicago O'Hare Intl Airport is January, where tickets cost C$ 348 on average. On the other hand, the most expensive months are April and July, where the average cost of tickets is C$ 508 and C$ 504 respectively.

Can I save money by flying with a layover from Buffalo to Chicago O'Hare Intl Airport?

The average price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of C$ 629, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Buffalo to Chicago O'Hare Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Buffalo to Chicago O'Hare Intl Airport, 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 Chicago O'Hare Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 139 days before departure.

Good to know

Low season

April

High season

August

Cheapest flight

C$ 96
Best time to beat the crowds but there is an average 18% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Buffalo to Chicago

When to book flights from Buffalo to O'Hare Intl

Are your dates flexible? Find out the best times to travel from Buffalo to O'Hare Intl 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 Buffalo to Chicago flights

  • What is the cheapest flight from Buffalo to Chicago O'Hare Intl Airport?

    In the last 3 days, the lowest price for a flight from Buffalo to Chicago O'Hare Intl Airport was C$ 69 for a one-way ticket and C$ 203 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Buffalo to Chicago?

    American Airlines, JetBlue, Delta, and Air Canada offer inflight Wi-Fi service on the Buffalo to Chicago flight route.

  • Which aircraft models fly most regularly from Buffalo to Chicago?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Buffalo to Chicago flight route.

  • Which airline alliances offer flights from Buffalo to Chicago?

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

  • On which days can I fly direct from Buffalo to Chicago?

    There are direct flights from Buffalo to Chicago on a daily basis.

  • Which is the best airline for flights from Buffalo to Chicago, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Buffalo to Chicago are United Airlines and American Airlines. With an average price for the route of C$ 488 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of C$ 412 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Buffalo to Chicago?

    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 Chicago.

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

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

  • What is the Hacker Fare option on flights from Buffalo to Chicago?

    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 Chicago 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 Chicago?

    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 Chicago from Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Buffalo to Chicago O'Hare Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 261 or less one-way and C$ 484 or less round-trip.

Prefer to fly non-stop from Buffalo to Chicago?

Find which airlines fly direct from Buffalo Airport to Chicago O'Hare Intl Airport, which days they fly and book direct flights.

Nonstop departures

Buffalo to Chicago O'Hare Intl

Monday

ANA,Air Canada,Air New Zealand, +10 more

ANA,Air Canada, +11 more

Tuesday

ANA,Air Canada,Air New Zealand, +10 more

ANA,Air Canada, +11 more

Wednesday

ANA,Air Canada,Air New Zealand, +11 more

ANA,Air Canada, +12 more

Thursday

ANA,Air Canada,Air New Zealand, +10 more

ANA,Air Canada, +11 more

Friday

ANA,Air Canada,Air New Zealand, +11 more

ANA,Air Canada, +12 more

Saturday

ANA,Air Canada,Air New Zealand, +10 more

ANA,Air Canada, +11 more

Sunday

ANA,Air Canada,Air New Zealand, +11 more

ANA,Air Canada, +12 more

See more nonstop flights

Nonstop returns

Chicago O'Hare Intl to Buffalo

Monday

ANA,Air Canada,Air New Zealand, +10 more

ANA,Air Canada, +11 more

Tuesday

ANA,Air Canada,Air New Zealand, +10 more

ANA,Air Canada, +11 more

Wednesday

ANA,Air Canada,Air New Zealand, +11 more

ANA,Air Canada, +12 more

Thursday

ANA,Air Canada,Air New Zealand, +10 more

ANA,Air Canada, +11 more

Friday

ANA,Air Canada,Air New Zealand, +11 more

ANA,Air Canada, +12 more

Saturday

ANA,Air Canada,Air New Zealand, +10 more

ANA,Air Canada, +11 more

Sunday

ANA,Air Canada,Air New Zealand, +11 more

ANA,Air Canada, +12 more

See more nonstop flights
See more nonstop flights

Top 3 airlines serving from Buffalo to O'Hare Intl

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to Chicago. 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 O'Hare Intl? 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.
7.4
United AirlinesOverall score based on 9240 reviews
7.3Comfort
8.1Crew
7.1Entertainment
6.7Food
7.7Boarding
Airline reviews

Everything was very good. Was able to change a make run flight leaving on direct earlier in the app -seamless!!! Well done

10.0 ExcellentAnonymous, Sep 2024EWR - ORD
Read more United Airlines reviews

Everything was very good. Was able to change a make run flight leaving on direct earlier in the app -seamless!!! Well done

Being stick waiting for gate at ORD cause me to almost miss my connecting flight…being deaf United made no no effort to keep me updated as I couldn’t hear the PA

As usual, United scheduling is completely misleading. A 54-minute layover at O’Hare is too short to make a lot of connections, especially since the flight landed “on time” but had to wait on the taxiway 15 minutes for a gate to open up. Then it takes another 10 minutes to exit the plane before one can run to another concourse to catch a connecting flight.

The seats on the aircraft are like sitting in a rock. During the boarding process they recognize Active Duty Military, why don’t they recognize Retired Military. I’ve always preferred Delta, this flight confirmed why I still prefer Delta.

when you can say you don't remember being at any point upset during a flight, the airline is winning .

The staff was very friendly. The seats seemed quite small. Overall the flight was pleasant.

It was literally one of the worst travel experiences ever. My flight got delayed by over an hour and there was no communication of this from the gate staff. I realized it by checking the screen periodically. Once on board the flight attendants continued to serve alcohol to a man who was clearly already drunk and that was making a bunch of commotion. Never again will I fly United!

Charging and entertainment didn't work. The meal was horrible. They only came by with the drink cart one time for the 8 hour flight. They did come by with water a couple times.

Exceptional, I’d like to specifically recognize Robert for his outstanding customer service. He is professional, pleasant, and personable.

Some sort of compensation for missing work because of a cancelled flight that was United’s fault

Airplane was cold. Flight attendants were rude. Phone charger did not work. No food available.

3hour delay In the last 3 months i had 3 flights and 2 of these had a more than 2:40 hrs delayed

My initial flight to ORD was extended without reason. We circled the airport a few time and then drove on the ground for at least 20 minutes. These kinds of delays are annoying but somewhat expected… it would be nice if the crew would make an announcement to give updates on how long we could expect to be delayed.

The flight was uneventful. What was a problem was I was delayed getting home one entire day because the flight from Sacramento was delayed. That made getting to my connecting flight impossible. I had to stay another night at the hotel and incur that expense as a result.

This flight was fine but had no time to breathe as the connection was late from Sea to ORD.. Super stressful. If we checked bags, the trip would have been very distressed.

Seats were very uncomfortable. I paid extra for a seat with more leg room, the seat was no different than a seat at the back of the plane. Flight attendant was rude.

the food choice of packaged chips and popcorn was utterly ridiculous for first class

Check in agent was helpful and nice. Flight was OK. Our flight in Chicago was delayed 8 hours without an explination. This was our journey home. After a horrible flight experience on on the way to our vacation where our plane was diverted for an emergency medical issue, was grounded for hours, we missed our connecting flight by 25 minutes, and it took a day yo get re-booked, this was yet another bad experience that American seemed unwilling to help out with, much less compensate us for the

Late and next flight even later. Who leaves at 245 am and arrives at 330 am ? No wifi, 4 hr flight and one bag of pretzels? AA should be ashamed

No problems on this flight. Entertainment system worked well. On time take off and arrival. Smooth most of the way.

Stop changing gates at sfo. When you are elderly going back for it’s not fun.

We understand and comply with Frontier’s bag sizes. We’ve had some problems in past while having to await other passengers who do not understand the baggage restrictions or have not prepaid and that is usually our biggest concern (others delaying us) with flying Frontier. Flying OUT of ONT, however, has always been a great experience. I’ve also noted even on delayed Frontier flights very knowledgeable pilots who manage expectations well.

There was no easy way to check in. I don't want to install an app to checkin. I will use alaska from now on because they have a web check in method that is easy.

The crew was ghetto lol I felt like I was on an inner city field trip

Horrible! The short distance flight ended up taking 5 hrs! There was a 3 hr delay for the flight to take off and there was a 70 min wait on the tarmac for some bogus reason that the pilot said the gate he was supposed to board was taken up. After a 30 min wait he said the plane that was supposed to push out of the gate called a medical emergency and 40 min later he ended up boarding another gate. For the initial 3 hr delay there was no information/alert about the gate or delay in the app or the boards up until the boarding time and even beyond! Had to walk all the way to the end of the terminal to find the frontier staff to ask what was going on. Avoid this airline at all costs! If you have carryon bags or checked bags , their prices come equivalent to the prices of more reliable airlines. They are the worst in timeliness at 60% (reported as delayed) this year (check the data) by a high margin even compared to the second worst airline. If you are ok with having a miserable flight experience with the odds close to flip of a coin, feel free to try them. If you value your time , money and flying experience, stay away.

There was nothing to like, flight delayed had to move to different departure areas, disorganized to say the leasr

Delayed for two hours due to trivial issues. No reimbursment. Also on arrival further delay due to terminal malfunction.

Our flight was canceled for no known reason. We weren’t told until we were checking in at 5:00 am. This was after our last flight with Frontier where we sat on the plane for three hours (not an exaggeration) before we took off because of a mechanical issue. We won’t be flying Frontier again.

Allowed me to chose my seat without extra charge (I purchased full-price ticket) and boarding was in group1. Didn't even serve water.

I went to the Frontier counter in San Jose at 1030am or so on Sunday 10/13/24 to see if I could get an earlier flight to San Diego in lieu of my reserved 630pm flight. One thing led to another, and I was able to obtain an open seat for about $ 56. on the earlier flight. Fine. Then the agent asked if I "was checking a bag". Not knowing that carry-ons cost extra per Frontier policy, I thought that she meant a regular checked bag. Therefore, I said no. Once I got to the gate, the same gate agent who sold me a ticket told me that I had to pay $99 for a carry-on, and that all bags were extra on Frontier. Having never flown on Frontier, I was not aware of this. Part of the issue was that she was not a native English speaker, so there was a miscommunication as to what "bag" meant. I would have preferred for her to have clearly let me know at the front counter that any bag including a carry-on cost $99. It would have had the same outcome, as I had to take my carry-on. But it got hectic at the last minute at the gate itself. The baggage policy should have mentioned "including carry-ons" when we first spoke.

Book cheap flights from Buffalo to Chicago

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Buffalo to Chicago found on KAYAK in the last 72 hours.
9/11Sat
1 stopFrontier
6h 26mBUF-ORD
C$ 96
25/2Tue
1 stopJetBlue
5h 11mBUF-ORD
C$ 129
7/1Tue
1 stopJetBlue
9h 05mBUF-ORD
C$ 138
18/12Wed
directUnited Airlines
1h 57mBUF-ORD
C$ 160
14/12Sat
1 stopUnited Airlines
4h 30mBUF-ORD
C$ 173
10/12Tue
2 stopsSouthwest
7h 50mBUF-ORD
C$ 179
25/12Wed
1 stopDelta
5h 45mBUF-ORD
C$ 207
24/12Tue
2 stopsSouthwest
9h 25mBUF-ORD
C$ 214
28/12Sat
1 stopDelta
3h 59mBUF-ORD
C$ 256
9/11Sat
directAmerican Airlines
1h 56mBUF-ORD
C$ 335

Search by stops

Search by airline

Search by price

Last minute flights from Buffalo to O'Hare Intl

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 Chicago that are departing in the next 10 days.
2/11Sat
directUnited Airlines
1h 59mBUF-ORD
2/11Sat
directUnited Airlines
1h 41mORD-BUF
C$ 896
1/11Fri
directUnited Airlines
1h 57mBUF-ORD
3/11Sun
directUnited Airlines
1h 41mORD-BUF
C$ 903
1/11Fri
directUnited Airlines
1h 57mBUF-ORD
3/11Sun
multi-stopUnited Airlines
6h 29mORD-BUF
C$ 917
1/11Fri
multi-stopUnited Airlines
5h 44mBUF-ORD
4/11Mon
multi-stopUnited Airlines
5h 10mORD-BUF
C$ 929
1/11Fri
multi-stopSouthwest
9h 20mBUF-ORD
4/11Mon
multi-stopSouthwest
8h 05mORD-BUF
C$ 936
1/11Fri
multi-stopSouthwest
8h 20mBUF-ORD
4/11Mon
multi-stopSouthwest
9h 50mORD-BUF
C$ 943
5/11Tue
multi-stopUnited Airlines
5h 44mBUF-ORD
5/11Tue
multi-stopUnited Airlines
14h 56mORD-BUF
C$ 975
2/11Sat
multi-stopDelta
6h 03mBUF-ORD
3/11Sun
multi-stopDelta
6h 46mORD-BUF
C$ 1,013
2/11Sat
multi-stopUnited Airlines
15h 49mBUF-ORD
4/11Mon
multi-stopUnited Airlines
5h 24mORD-BUF
C$ 1,059
4/11Mon
multi-stopSouthwest
7h 50mBUF-ORD
4/11Mon
multi-stopSouthwest
4h 20mORD-BUF
C$ 1,092

Search by stops

Search by airline

Search by price

Everything you need to know for your flight from Buffalo to O'Hare Intl

Information on your arrival and departure airports