BUF - ORD

C$ 86 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 8/2. 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 41,299,237 times on KAYAK, and here is why:

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Cheap Flight Deals 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.

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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:08 p.m. - 10:23 p.m.BUF-ORD
11h 15m1 stop
10:02 p.m. - 9:59 a.m.ORD-BUF
10h 57m1 stop
C$ 186Frontier
Find Deal
Mon, 13 Jan - Fri, 24 Jan
4:07 p.m. - 9:52 a.m.BUF-ORD
18h 45m1 stop
10:00 a.m. - 11:59 p.m.ORD-BUF
12h 59m1 stop
C$ 199Frontier
Find Deal
Thu, 23 Jan - Sat, 25 Jan
11:32 a.m. - 4:45 p.m.BUF-ORD
6h 13m1 stop
11:44 a.m. - 6:13 p.m.ORD-BUF
5h 29m1 stop
C$ 268JetBlue
Find Deal
Thu, 20 Feb - Tue, 25 Feb
11:32 a.m. - 4:45 p.m.BUF-ORD
6h 13m1 stop
5:40 p.m. - 11:42 p.m.ORD-BUF
5h 02m1 stop
C$ 305JetBlue
Find Deal
Fri, 21 Feb - Sat, 22 Feb
5:40 p.m. - 6:49 p.m.BUF-ORD
2h 09mdirect
6:30 p.m. - 9:10 p.m.ORD-BUF
1h 40mdirect
C$ 341United Airlines
Find Deal
Tue, 28 Jan - Tue, 4 Feb
5:40 p.m. - 6:49 p.m.BUF-ORD
2h 09mdirect
6:08 p.m. - 11:31 p.m.ORD-BUF
4h 23m1 stop
C$ 355United Airlines
Find Deal
Tue, 28 Jan - Tue, 4 Feb
6:15 a.m. - 4:45 p.m.BUF-ORD
11h 30m2 stops
7:00 a.m. - 12:30 p.m.ORD-BUF
4h 30m1 stop
C$ 375Southwest
Find Deal
Wed, 29 Jan - Wed, 5 Feb
6:15 a.m. - 4:45 p.m.BUF-ORD
11h 30m2 stops
11:25 a.m. - 10:20 p.m.ORD-BUF
9h 55m2 stops
C$ 383Southwest
Find Deal
Wed, 29 Jan - Wed, 5 Feb
5:06 p.m. - 6:06 p.m.BUF-ORD
2h 00mdirect
12:24 p.m. - 10:46 p.m.ORD-BUF
9h 22m1 stop
C$ 455American Airlines
Find Deal
Mon, 17 Mar - Wed, 19 Mar
11:13 a.m. - 12:14 p.m.BUF-ORD
2h 01mdirect
7:25 a.m. - 2:34 p.m.ORD-BUF
6h 09m1 stop
C$ 475American Airlines
Find Deal
Fri, 21 Feb - Sat, 22 Feb

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 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 January, where tickets cost C$ 380 (return) on average. On the other hand, the most expensive months are July and April, where the average cost of round-trip tickets is C$ 521 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 2 stops layover the cheapest option at C$ 501 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. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low season

April

High season

August

Cheapest flight

C$ 86
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly and prices are also 7% 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$ 60 for a one-way ticket and C$ 129 for a round-trip.

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

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

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

    The Embraer 170 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$ 513 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$ 429 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$ 272 or less one-way and C$ 557 or less round-trip.

Prefer to fly direct 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.

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, +9 more

ANA,Air Canada, +10 more

Wednesday

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

ANA,Air Canada, +12 more

Thursday

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

ANA,Air Canada, +10 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

Direct 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, +9 more

ANA,Air Canada, +10 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, +10 more

ANA,Air Canada, +11 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 8978 reviews
7.3Comfort
8.1Crew
7.7Boarding
7.1Entertainment
6.7Food
Airline reviews

The aircrew was solid, the flight was chill, I had no issues. The gate agent was not the best. I was trying to use a military bag upgrade to move my bag from under the seat to the overhead bins and he told me there’s no overhead bins on the plane, argued with me why booking put a military member in basic economy (I don’t really understand this) and made it an issue to even try to help me stating I’d have to call reservations to get a bag upgrade. When every other agent with United can add it at the gate, this man couldn’t be bothered.

6.0 GoodSerena, Dec 2024DLH - ORD
Read more United Airlines reviews

The aircrew was solid, the flight was chill, I had no issues. The gate agent was not the best. I was trying to use a military bag upgrade to move my bag from under the seat to the overhead bins and he told me there’s no overhead bins on the plane, argued with me why booking put a military member in basic economy (I don’t really understand this) and made it an issue to even try to help me stating I’d have to call reservations to get a bag upgrade. When every other agent with United can add it at the gate, this man couldn’t be bothered.

They canceled our flight and left us stranded to figure it out

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.

Delayed due to no crew. On a major holiday travel day.

Other than being delayed 5.5 hours and having to get a hotel because I missed my connecting flight, it was an okay flight. No in-flight Wi-Fi or entertainment.

It was nice being on a flight that had working wifi. The boarding was quick - why don’t all airlines have small boarding groups window to aisle? Makes so much sense!!! I was disappointed to be the first person stopped to have to gate check my carryon. Especially when there was plenty of overhead space at the back! But I get it…keeps it moving. Crew was nice.

The flight from Buffalo to Chicago was on an older and smaller plane. Seating was tight. Looking closely at the interior of the aircraft there were definitely signs of aging and wear.

The flight encountered a delay exceeding 4 hours. The food voucher issued was valued at $12, insufficient to cover our meal expenses. Consequently, I was unable to take my medication, leading to a drop in blood sugar levels and exacerbating my anxiety.

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.

Our flight was suppose to leave at 9pm and we didn’t board until after 3am. We lost a whole day at our hotel and half a day at a park we paid a lot of money for.

It was a redeye flight, so every passenger just wanted to sleep, but through the entire flight, the flight crew made announcements over the loudspeaker at maximum volume every few minutes making sleep impossible. For example: it’s 2am, and the crew decides to give an extremely detailed announcement about snacks and beverages for sale. And 3am is the perfect time to wake up everyone with a lengthy announcement about how to get a coffee refill and how to take advantage of new offer from frontier for a credit card.

Overall experience good. There was no food and seats were not terribly comfortable.

Boarding was organized and flight was on time. Overall very satisfied with my flight.

The takeoff was the smoothest I've ever experienced on any airline and this is the first time I've flown on frontier so this was an extremely pleasant surprise!

Delayed each time on a round trip with no significant weather interference. Updates to flight times came after the fact. 30 min behind in boarding and board and phone still show an on time departure. Some mysterious extra 300 miles that came so surprising they had to fuel while we were already on board?

A lady asked to stop the flight after the tunnel pulled away and we began to depart a flight that was already hours late. The attendance respectfully stopped the the plane and had the tunnel return. After the tunnel returned the passenger claimed to have changed her mind . The tunnel was then put in reverse and the passenger remained on the plane .. They should have sent the sick passenger off the plane like initially replaced. They existed a couple off the plane prior to that situation.. So.. all and all.. it was a long and flight.. .

terrible cascading delays and unhelpful customer service. uncomfortable plane. crew was great, however!

I ended up paying $70+ dollars to for a carryon because the website is confusing and misleading. I now realize I did not need to pay that. I request a refund. I will pay extra to other airlines and not fly Frontier again.

With frontier you get what you pay for. The flight was two hours late. It’s a tight fit for the number of people they bring but you get to where you’re going cheap. Sometimes that’s more important than a nifty drink and cool TV..

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.
8/2Sat
1 stopFrontier
11h 17mBUF-ORD
C$ 86
16/2Sun
1 stopJetBlue
6h 13mBUF-ORD
C$ 134
12/2Wed
directUnited Airlines
2h 03mBUF-ORD
C$ 171
2/2Sun
1 stopJetBlue
8h 29mBUF-ORD
C$ 180
28/1Tue
1 stopDelta
3h 54mBUF-ORD
C$ 184
14/1Tue
2 stopsSouthwest
11h 30mBUF-ORD
C$ 191
29/1Wed
2 stopsSouthwest
11h 30mBUF-ORD
C$ 193
30/1Thu
2 stopsSouthwest
11h 30mBUF-ORD
C$ 213
15/2Sat
directUnited Airlines
2h 02mBUF-ORD
C$ 229
15/2Sat
1 stopDelta
4h 16mBUF-ORD
C$ 257

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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.
5/1Sun
multi-stopSouthwest
6h 15mBUF-ORD
14/1Tue
multi-stopSouthwest
4h 45mORD-BUF
C$ 587
5/1Sun
multi-stopSouthwest
9h 35mBUF-ORD
14/1Tue
multi-stopSouthwest
9h 55mORD-BUF
C$ 594
5/1Sun
directAmerican Airlines
1h 56mBUF-ORD
14/1Tue
directAmerican Airlines
1h 39mORD-BUF
C$ 603
5/1Sun
multi-stopAmerican Airlines
5h 13mBUF-ORD
14/1Tue
directAmerican Airlines
1h 39mORD-BUF
C$ 616
3/1Fri
directUnited Airlines
2h 09mBUF-ORD
7/1Tue
directUnited Airlines
1h 40mORD-BUF
C$ 863
3/1Fri
directUnited Airlines
2h 09mBUF-ORD
7/1Tue
multi-stopUnited Airlines
4h 12mORD-BUF
C$ 877
3/1Fri
multi-stopDelta
6h 26mBUF-ORD
7/1Tue
multi-stopDelta
4h 37mORD-BUF
C$ 890
3/1Fri
multi-stopSouthwest
6h 20mBUF-ORD
7/1Tue
multi-stopSouthwest
9h 55mORD-BUF
C$ 900
3/1Fri
multi-stopSouthwest
8h 00mBUF-ORD
7/1Tue
multi-stopSouthwest
9h 55mORD-BUF
C$ 908
1/1Wed
multi-stopFrontier
16h 00mBUF-ORD
3/1Fri
multi-stopFrontier
7h 33mORD-BUF
C$ 933

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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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