BUF - ORD

C$ 122 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 16/9. 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
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago O'Hare Intl Airport

 
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
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Flights Deals

Cheap Flights from Buffalo to Chicago (BUF-ORD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo to Chicago 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 for you by selecting your travel dates on KAYAK.

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

Sat, 20 Sep - Tue, 23 Sep
United Airlines Logo
7:05 a.m. - 8:03 a.m.BUF-ORD
1h 58mdirect
United Airlines Logo
7:10 a.m. - 9:53 a.m.ORD-BUF
1h 43mdirect
C$ 243United Airlines
Find Deal
Sat, 23 Aug - Sat, 30 Aug
Frontier Logo
1:56 p.m. - 11:33 p.m.BUF-ORD
10h 37m1 stop
Frontier Logo
7:46 p.m. - 10:17 a.m.ORD-BUF
13h 31m1 stop
C$ 245Frontier
Find Deal
Wed, 13 Aug - Fri, 22 Aug
Frontier Logo
5:12 p.m. - 12:32 a.m.BUF-ORD
8h 20m1 stop
Frontier Logo
6:00 a.m. - 4:00 p.m.ORD-BUF
9h 00m1 stop
C$ 260Frontier
Find Deal
Wed, 27 Aug - Wed, 3 Sep
Delta Logo
6:04 a.m. - 10:05 a.m.BUF-ORD
5h 01m1 stop
Delta Logo
5:00 p.m. - 10:59 p.m.ORD-BUF
4h 59m1 stop
C$ 271Delta
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Tue, 20 Jan - Tue, 10 Feb
JetBlue Logo
9:15 a.m. - 1:23 p.m.BUF-ORD
5h 08m1 stop
JetBlue Logo
2:20 p.m. - 9:31 p.m.ORD-BUF
6h 11m1 stop
C$ 278JetBlue
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Tue, 20 Jan - Tue, 10 Feb
JetBlue Logo
9:15 a.m. - 1:23 p.m.BUF-ORD
5h 08m1 stop
JetBlue Logo
2:20 p.m. - 9:31 p.m.ORD-BUF
6h 11m1 stop
C$ 279JetBlue
Find Deal
Sat, 23 Aug - Sat, 30 Aug
American Airlines Logo
1:46 p.m. - 5:32 p.m.BUF-ORD
4h 46m1 stop
American Airlines Logo
7:10 p.m. - 9:52 p.m.ORD-BUF
1h 42mdirect
C$ 299American Airlines
Find Deal
Fri, 31 Oct - Mon, 3 Nov
United Airlines Logo
10:50 a.m. - 11:56 a.m.BUF-ORD
2h 06mdirect
United Airlines Logo
6:10 p.m. - 9:00 p.m.ORD-BUF
1h 50mdirect
C$ 308United Airlines
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Sun, 31 Aug - Tue, 2 Sep
Delta Logo
12:18 p.m. - 4:13 p.m.BUF-ORD
4h 55m1 stop
Delta Logo
11:05 a.m. - 6:07 p.m.ORD-BUF
6h 02m1 stop
C$ 321Delta
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Tue, 20 Jan - Tue, 10 Feb
American Airlines Logo
4:40 p.m. - 8:41 p.m.BUF-ORD
5h 01m1 stop
American Airlines Logo
8:00 a.m. - 10:46 a.m.ORD-BUF
1h 46mdirect
C$ 348American Airlines
Find Deal
Expert advice

Expert advice for your flight from Buffalo to O'Hare Intl

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

United's Priority Boarding puts you in Zone 2, ensuring overhead bin space for your carry-on.


United's Economy Plus offers up to 15 cm more legroom than standard economy seats.

American Airlines

American's Main Cabin Extra provides early boarding and complimentary drinks, enhancing your travel experience.


American Airlines' Wi-Fi offers 20 minutes free with an ad, perfect for quick tasks.

Airports
BUF

BUF's security wait time averages 12 minutes, making it convenient for early morning flights to ORD.

Read more about BUFby Jennifer Bain
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Jennifer Bain

Jennifer Bain

Expert on BUF

Jennifer Bain

Jennifer Bain

Jennifer Bain is a Canadian travel writer who takes at least 50 flights a year and has proudly visited all 13 of Canada's provinces and territories. She is a former newspaper travel editor who has written three travel books. Jennifer is the Canada editor for U.S.-based National Parks Traveler and freelances for numerous other outlets.

Read more
Booking Insights

KAYAK's insights & trends for Buffalo to O'Hare Intl flights

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.

How much is a round-trip flight from Buffalo to Chicago O'Hare Intl Airport?

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 round-trip 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 September, where tickets cost C$ 384 (return) on average. On the other hand, the most expensive months are February and March, where the average cost of round-trip tickets is C$ 658 and C$ 502 respectively.

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

The average round-trip 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 391 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.

To get a below average price on the flight from Buffalo to Chicago O'Hare Intl Airport, you should book around 4 weeks before departure, which saves you about 43% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.


Good to know

Low seasonMarch
Cheapest flightC$ 122
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly and prices are also 17% 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$ 89 for a one-way ticket and C$ 177 for a round-trip.

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

    American Airlines, JetBlue, and Delta 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$ 563 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$ 438 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.

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$ 212 or less one-way and C$ 548 or less round-trip.

Prefer to fly direct from Buffalo to Chicago?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Buffalo to Chicago O'Hare Intl.
Find which airlines fly direct from Buffalo Airport to Chicago O'Hare Intl Airport, which days they fly and book direct flights.

Direct 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, +10 more

ANA,Air Canada, +11 more

Thursday

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

ANA,Air Canada, +11 more

Friday

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

ANA,Air Canada, +11 more

Saturday

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

ANA,Air Canada, +11 more

Sunday

ANA,Air Canada,Air New Zealand, +9 more

ANA,Air Canada, +10 more

See more nonstop flights

Direct returns

Chicago O'Hare Intl to Buffalo

Monday

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

ANA,Air Canada, +12 more

Tuesday

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

ANA,Air Canada, +12 more

Wednesday

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

ANA,Air Canada, +12 more

Thursday

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

ANA,Air Canada, +12 more

Friday

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

ANA,Air Canada, +12 more

Saturday

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

ANA,Air Canada, +12 more

Sunday

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

ANA,Air Canada, +11 more

See more nonstop flights

Reviews of the top airlines flying 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 8896 reviews
7.7Boarding
8.1Crew
7.3Comfort
6.6Food
7.1Entertainment
Airline reviews

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

4.0 OkayGary, Jul 2025PIA - ORD
Read more United Airlines reviews

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Overall it was good. I missed my connection but I was put on another flight.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

I liked that the flight was nonstop from ORD to CIU for $200 round trip.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

The first flight was better in terms of the aircraft.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

Couldn’t get the door on the plane to close leading to a nearly 2 hour delay. But, hey at least they didn’t cancel the flight.

The flight was fine and the crew awesome. The problem is ORD and AA. Computers went down, ORD fell apart and a 40 min flight turned into a 3 hour trip. Guess the answer is to not try and fly to ORD after noon. But, as I said, crew was awesome and did everything they could to lesson the flight time.

The flight was fine but the 8 hour delay in Chicago was awful - 5 gate changes and repeated delays without an explanation. No vouchers. Nothing.

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Not sure the logic of the boarding in Groups. I was loaded first on the aisle. Then the guy in the middle. Then the guy by the window. Constantly holding up the other people boarding behind them with us blocking the aisle and this happened in most of the other rows

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

Crew professional. Easy bag drop off. On time. Good entertainment.

Everything was great. Boarding, early departure, early arrival, and deplaning were smooth. Smooth flight.

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

Information on your arrival and departure airports

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