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BUF - ORD

$57 Find cheap flights from Buffalo to Chicago O'Hare Airport

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 5/22. 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
Fri 5/31
Fri 6/7

Search hundreds of travel sites at once for deals on flights to Chicago O'Hare 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
In the last 7 days travelers have searched 44,052,950 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.

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

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Buffalo to O'Hare Intl (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 O'Hare Intl 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 and deals for you by selecting your travel dates.
Choose your dates
2:46 pm - 6:45 pmBUF-ORD
4h 59m1 stop
8:00 am - 1:46 pmORD-BUF
4h 46m1 stop
$123Frontier
Find Deal
Wed, May 22 - Wed, May 29
4:04 pm - 12:58 amBUF-ORD
9h 54m1 stop
1:30 pm - 9:00 pmORD-BUF
6h 30m1 stop
$133Frontier
Find Deal
Sat, May 18 - Tue, May 21
11:30 am - 8:03 pmBUF-ORD
9h 33m1 stop
8:00 am - 1:46 pmORD-BUF
4h 46m1 stop
Thu, May 30 - Mon, Jun 3
6:20 am - 8:59 amBUF-ORD
3h 39m1 stop
5:23 pm - 10:59 pmORD-BUF
4h 36m1 stop
$207Delta
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Sat, May 25 - Sun, May 26
6:00 pm - 6:54 pmBUF-ORD
1h 54mnonstop
9:20 pm - 11:59 pmORD-BUF
1h 39mnonstop
$239United Airlines
Find Deal
Wed, May 22 - Sat, May 25
6:00 am - 10:26 amBUF-ORD
5h 26m1 stop
8:27 pm - 11:03 pmORD-BUF
1h 36mnonstop
$247American Airlines
Find Deal
Wed, May 29 - Wed, Jun 5
7:59 pm - 11:30 pmBUF-ORD
4h 31m1 stop
6:57 pm - 9:47 pmORD-BUF
1h 50mnonstop
$248United Airlines
Find Deal
Wed, May 22 - Sat, May 25
4:09 pm - 8:56 pmBUF-ORD
5h 47m1 stop
8:14 am - 10:55 amORD-BUF
1h 41mnonstop
$258American Airlines
Find Deal
Wed, May 22 - Wed, May 29
5:29 am - 10:15 amBUF-ORD
5h 46m1 stop
6:00 am - 2:35 pmORD-BUF
7h 35m1 stop
$268Delta
Find Deal
Wed, Jul 17 - Wed, Aug 14
7:00 am - 7:51 amBUF-ORD
1h 51mnonstop
9:25 pm - 1:46 pmORD-BUF
39h 21m3 stops
Sat, Jun 1 - Mon, Jun 3

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’s the cheapest day of the week to fly from Buffalo to Chicago O'Hare Airport?

The average price of all flights from Buffalo to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Chicago O'Hare Airport on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Buffalo to Chicago O'Hare Airport. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

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 $240 on average. On the other hand, the most expensive months are August and June, where the average cost of tickets is $338 and $324 respectively.

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 1 week before departure. For the absolute cheapest price, our data suggests you should book 44 days before departure.

Which airlines provide the cheapest flights from Buffalo to Chicago O'Hare Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Frontier ($57) and Delta ($83). The cheapest round-trip tickets were found on Frontier ($123) and Delta ($207).

Which airlines fly non-stop between Buffalo and Chicago O'Hare Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Buffalo to Chicago O'Hare Intl Airport.
There are 2 airlines that fly nonstop from Buffalo to Chicago O'Hare Intl Airport. They are American Airlines and United Airlines. The cheapest airline for this route is United Airlines, with the best one-way deal found costing $142. On average, the best prices for this route can be found at American Airlines.

How many flights are there between Buffalo and Chicago O'Hare Intl Airport per day?

Each day, there are between 9 and 10 nonstop flights that take off from Buffalo and land in Chicago O'Hare Intl Airport, with an average flight time of 1h 53m. The most common departure time is 5:00 pm and most flights take off in the morning. Each week, there are 65 flights. The most frequent day of departure is Sunday, when 15% of all weekly flights depart. The fewest flights depart on a Friday.

Which cabin class options are there for flights between Buffalo and Chicago O'Hare Intl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Buffalo to Chicago O'Hare Airport take?

The average nonstop flight takes 1h 49m, covering a distance of 472 miles.

What’s the earliest departure time from Buffalo to Chicago O'Hare Airport?

Early birds can take the earliest flight from Buffalo at 7:00 am and will be landing in Chicago O'Hare Intl Airport at 7:53 am.

What’s the latest departure time from Buffalo to Chicago O'Hare Airport?

If you prefer to fly at night, the latest flight from Buffalo to Chicago O'Hare Intl Airport jets off at 6:17 pm and lands at 7:06 pm.

Good to know

Low season

January

High season

July

Cheapest flight

$57
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Buffalo to Chicago O'Hare Airport

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 O'Hare Airport 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 $57 for a one-way ticket and $123 for a round-trip.

  • Do I need a passport to fly between Buffalo and Chicago O'Hare Airport?

    A passport is not required to fly from Buffalo to Chicago O'Hare Airport.

  • Which airports will I be using when flying from Buffalo to Chicago O'Hare Airport?

    When flying out of Buffalo you will be using Buffalo. You will be landing at Chicago O'Hare Airport, also known as Chicago O'Hare Intl.

  • Which airlines offer Wi-Fi service onboard planes from Buffalo to Chicago O'Hare Airport?

    All the following airlines offer inflight Wi-Fi service on the Buffalo to Chicago O'Hare Airport flight route: American Airlines, JetBlue, Sun Country Air, Delta, Air Canada, and United Airlines.

  • Which aircraft models fly most regularly from Buffalo to Chicago O'Hare Airport?

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Buffalo to Chicago O'Hare Airport flight route.

  • Which airline alliances offer flights from Buffalo to Chicago O'Hare Airport?

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

  • On which days can I fly direct from Buffalo to Chicago O'Hare Airport?

    There are nonstop flights from Buffalo to Chicago O'Hare Airport on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from Buffalo to Chicago are Delta and United Airlines. With an average price for the route of $314 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $314 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Buffalo to Chicago O'Hare Airport?

    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 O'Hare Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport 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 Chicago O'Hare Airport?

    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 O'Hare Airport with an airline and back to Buffalo with another airline. Booking your flights between Buffalo and ORD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buffalo to Chicago O'Hare Airport?

    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 O'Hare Airport 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 a cheap flight from BUF to Chicago O'Hare Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $217 or less one-way and $385 or less round-trip.

Prefer to fly non-stop from Buffalo to Chicago O'Hare Airport?

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

Nonstop departures

Buffalo to Chicago O'Hare Intl

Monday

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

ANA, Air Canada, +10 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, +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 direct 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 direct flights
See more direct 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.
8.0
DeltaOverall score based on 10874 reviews
7.9Comfort
7.4Food
8.2Boarding
8.0Entertainment
8.6Crew
Airline reviews

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.

6.0 GoodDan, Apr 2024LGA - DEN
Read more about Delta reviews

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.

Everything went well with the flight. But one of the flight attendants had on inappropriate pants. She had on an old worn out pair of sweat pants. The back seam was unrivaled and should not have been worn for work. If I had not seen her in the airport with the standard type of luggage, I certainly would not have thought she was working for Delta. Not a good look at all for representation.

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.

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 flight was delayed by 4 hours !!!!! It was very uncomfortable , and they told us only one our before departure

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.

Turn on the heat. Flight was way too cold from Arizona to Chicago.

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.
5/22Wed
1 stopFrontier
4h 59mBUF-ORD
$57
5/8Wed
1 stopFrontier
28h 13mBUF-ORD
$68
7/4Thu
1 stopDelta
7h 45mBUF-ORD
$83
5/30Thu
1 stopSun Country Air
9h 33mBUF-ORD
$88
7/4Thu
1 stopSun Country Air
6h 46mBUF-ORD
$98
8/3Sat
nonstopAmerican Airlines
1h 52mBUF-ORD
$120
5/28Tue
nonstopAmerican Airlines
1h 52mBUF-ORD
$125
5/21Tue
1 stopDelta
5h 17mBUF-ORD
$134
6/3Mon
nonstopUnited Airlines
1h 48mBUF-ORD
$168
6/2Sun
nonstopUnited Airlines
1h 52mBUF-ORD
$195

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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.
5/6Mon
multi-stopFrontier
15h 58mBUF-ORD
5/11Sat
multi-stopFrontier
10h 13mORD-BUF
$267
5/4Sat
multi-stopFrontier
8h 12mBUF-ORD
5/6Mon
multi-stopFrontier
22h 21mORD-BUF
$329
5/4Sat
multi-stopFrontier
8h 12mBUF-ORD
5/6Mon
multi-stopFrontier
22h 21mORD-BUF
$347
5/5Sun
multi-stopFrontier
17h 23mBUF-ORD
5/12Sun
multi-stopFrontier
13h 04mORD-BUF
$351
5/6Mon
nonstopAmerican Airlines
1h 52mBUF-ORD
5/11Sat
nonstopAmerican Airlines
1h 36mORD-BUF
$501
5/6Mon
nonstopAmerican Airlines
1h 52mBUF-ORD
5/11Sat
multi-stopAmerican Airlines
5h 05mORD-BUF
$509
5/4Sat
multi-stopJetBlue
7h 01mBUF-ORD
5/8Wed
multi-stopJetBlue
5h 40mORD-BUF
$526
5/4Sat
multi-stopJetBlue
7h 01mBUF-ORD
5/8Wed
multi-stopJetBlue
5h 40mORD-BUF
$528
5/4Sat
multi-stopUnited Airlines
4h 22mBUF-ORD
5/8Wed
nonstopUnited Airlines
1h 41mORD-BUF
$565
5/4Sat
nonstopUnited Airlines
1h 57mBUF-ORD
5/8Wed
multi-stopUnited Airlines
5h 09mORD-BUF
$577

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Buffalo - Chicago O'Hare Airport Flights

Departure:

Buffalo (BUF)United States

Destination:

Chicago O'Hare Airport (ORD)United States

Return flight deals:

Chicago O'Hare Airport - Buffalo

Cabin classes:

$1,096
$551
$569
$235