ORD - BUF

$89 Find Cheap Flights from Chicago O'Hare Airport to Buffalo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to Buffalo departing on 9/13. 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 Buffalo

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Buffalo, 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 Chicago to Buffalo, as well as popular online travel agencies
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Flights Deals

Cheap Flights from O'Hare Intl to Buffalo (ORD-BUF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from O'Hare Intl to Buffalo 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 O'Hare Intl to Buffalo

Sat, Sep 13 - Sat, Sep 20
American Airlines Logo
8:33 am - 11:06 amORD-BUF
1h 33mnonstop
American Airlines Logo
7:35 am - 8:30 amBUF-ORD
1h 55mnonstop
$176American Airlines
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Sat, Aug 23 - Wed, Aug 27
American Airlines Logo
7:10 pm - 9:52 pmORD-BUF
1h 42mnonstop
American Airlines Logo
6:25 am - 7:20 amBUF-ORD
1h 55mnonstop
$177American Airlines
Find Deal
Wed, Aug 13 - Sat, Aug 16
Frontier Logo
7:00 am - 4:17 pmORD-BUF
8h 17m1 stop
Frontier Logo
1:14 pm - 11:29 pmBUF-ORD
11h 15m1 stop
$178Frontier
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Sat, Aug 23 - Sat, Sep 6
Frontier Logo
7:46 pm - 10:17 amORD-BUF
13h 31m1 stop
Frontier Logo
7:11 pm - 7:44 pmBUF-ORD
25h 33m1 stop
$185Frontier
Find Deal
Wed, Aug 27 - Wed, Sep 3
Delta Logo
6:00 am - 1:39 pmORD-BUF
6h 39m1 stop
Delta Logo
12:02 pm - 7:09 pmBUF-ORD
8h 07m1 stop
$197Delta
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Tue, Aug 26 - Tue, Sep 2
JetBlue Logo
6:15 am - 12:01 pmORD-BUF
4h 46m1 stop
JetBlue Logo
5:35 am - 11:18 amBUF-ORD
6h 43m1 stop
$206JetBlue
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Mon, Aug 25 - Wed, Sep 3
Delta Logo
5:00 pm - 10:59 pmORD-BUF
4h 59m1 stop
Delta Logo
12:45 pm - 4:13 pmBUF-ORD
4h 28m1 stop
$208Delta
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Sat, Sep 13 - Mon, Sep 15
JetBlue Logo
8:34 am - 2:57 pmORD-BUF
5h 23m1 stop
JetBlue Logo
3:55 pm - 8:49 pmBUF-ORD
5h 54m1 stop
$220JetBlue
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Sat, Aug 23 - Sat, Aug 30
United Airlines Logo
6:28 pm - 9:16 pmORD-BUF
1h 48mnonstop
United Airlines Logo
7:05 am - 8:03 amBUF-ORD
1h 58mnonstop
$237United Airlines
Find Deal
Thu, Aug 28 - Sat, Aug 30
United Airlines Logo
2:08 pm - 4:52 pmORD-BUF
1h 44mnonstop
United Airlines Logo
10:55 am - 11:51 amBUF-ORD
1h 56mnonstop
$248United Airlines
Find Deal
Expert advice

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

 
Snippets provided in this section are AI-generated based on a summarization 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
American Airlines

AA's Main Cabin Extra offers early boarding and complimentary drinks, enhancing travel comfort.


AA's Basic Economy is budget-friendly but includes restrictions like late boarding and no seat assignment.

United Airlines

United offers Priority Boarding to avoid overhead bin space issues, placing you in Zone 2.


United's Economy Plus seats offer up to six inches more legroom than standard economy.

Our travel experts
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
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
Booking Insights

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

Get data-powered insights and trends into flights from O'Hare Intl to Buffalo 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 Chicago O'Hare Airport to Buffalo?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Buffalo clicked on KAYAK for each day over the last 12 months.

For Chicago O'Hare Airport to Buffalo, Tuesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Buffalo back to Chicago O'Hare Airport, the best deals are generally found on Friday, with Sunday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Buffalo, 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 Chicago O'Hare Intl Airport to Buffalo is September, where tickets cost $239 (return) on average. On the other hand, the most expensive months are July and April, where the average cost of round-trip tickets is $405 and $373 respectively.

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

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 $256 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Buffalo, 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 Chicago O'Hare Intl Airport to Buffalo, you should book around 5 weeks before departure, which saves you about 52% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$89
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Chicago O'Hare Airport to Buffalo

When to book flights from O'Hare Intl to Buffalo

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

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

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Buffalo was $89 for a one-way ticket and $176 for a round-trip.

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

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

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

    Chicago O'Hare Airport airport is called Chicago O'Hare Intl and the only airport in Buffalo is Buffalo.

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

    American Airlines, Alaska Airlines, and Air Canada offer inflight Wi-Fi service on the Chicago O'Hare Airport to Buffalo flight route.

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Chicago to Buffalo are United Airlines and American Airlines. With an average price for the route of $378 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 $312 and an overall rating of 7.2.

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

    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 Chicago O'Hare Airport to Buffalo.

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

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

    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 Buffalo with an airline and back to Chicago O'Hare Airport with another airline. Booking your flights between Chicago O'Hare Airport and BUF 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 Chicago O'Hare Airport to Buffalo?

    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 Buffalo from Chicago O'Hare Airport 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 Chicago O'Hare Intl Airport to Buffalo

  • Looking for a cheap flight? 25% of our users found flights on this route for $152 or less one-way and $188 or less round-trip.

Prefer to fly direct from Chicago O'Hare Airport to Buffalo?

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

Direct departures

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 direct flights

Direct returns

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 direct flights

Reviews of the top 3 airlines serving from O'Hare Intl to Buffalo

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Buffalo. 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 O'Hare Intl to Buffalo? 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
7.3Comfort
8.1Crew
7.7Boarding
6.6Food
7.1Entertainment
Airline reviews

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

10.0 ExcellentAnita, Jul 2025ORD - CMH
Read more United Airlines reviews

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

I was charged for my daughters bag when I am supposed to receive two free checked bags with my United Explorer card.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

Flight was great. Efficient boarding. Short flight. Early arrival. Friendly flight crew. The entertainment system did not work well. Could not access it until the aircraft reached 10K feet or more. Lots of glitches.

A bit rush for transit. Food and entertainment are not available

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

My flight was scheduled for about 6:05 departure. There were 11 gate changes from 4-7pm and the flight was 3 hours delayed due to operational issues. The plane taxied around the airport for about half an hour before stopping to be de-iced. It would have been nice if we were alerted of the plan to de-ice prior to the 30 minute drive around the airport. The flight attendant was friendly, which was the only redeeming thing about this flight. As a former flight attendant for United, I was extremely disappointed.

Delays took 2hours and thirty minutes making me miss my connecting flight and make me sit in the Chicago airport for 9 hours

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

I wish American Airlines would change the airline industry by loading the plane back to front instead of front to back. Planes would board so much more smoothly and quickly.

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

Excellent! The gate agents were kind enough to rebook me on an earlier flight saving me from a 6 hour layover. Even my luggage made it despite the fact that the connection was technically too narrow. The flight itself was very comfortable, roomy, and clean. Plenty of space for my carryon items with plugs to charge my phone. After a long international flight of 14 hours, this was an excellent way to end my travels!

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

Most of the delay was due to weather which is not what was at issue here. One delay was due to a missing flashlight and in the end the flashlight was actually found on the plane. The entertainment system is very limited. Live TV options offer only a few channels that are not very appealing. Boarding and deplaning are always difficult. It just takes too much time to get on and off the plane. On the plus side, I missed my connecting flight, but was easily able to book a later flight from the app while enroute.

You were more on time than United. I'm so over united delays.

My first flight was delayed 5 hours. The 2nd flight was canceled til the next day and the never even tried to compensate for it. Worse I was delayed again on the flight the rebooked me on.

Boarding in Orlando was not good. Giant mob at the gate, should have been lines.

Decent clean onboard experience. Okay discount airline experience. Unfortunately, any customer service interactions are difficult and unhelpful. There is no service. Also, a premium seat only gets you premium boarding if you line up first. Once they start general boarding you must go to the back of the line. Not very premium

baggage clamed had to wait over a hour and half for all people on my flight it was terrible

The ticketing agents were rude but then we had a great gate agent very nice we had to ride a buss out to where the plane was parked but it was in some back corner of the airport when we got to the plane the captain who was great btw was cleaning the plane because the same rude ticketing agent told them they we not contracted to vacuum the plane. The ride to las Vegas was fine We had a connecting flight to Dallas. The flight was fine but when we arrived in Dallas everyone who flew on any frontier airlines the picked up bags from baggage claim D15 had to wait over a hour for their bags to start we arrived at 11:30pm ish to the gate we didn't leave the baggage clamed till 12:50 am very not happy and i used to fly frontier 4 times a week for work in Denver i will not be using them again

I was 2 hr arrive in the airport and 45 min in the line . After take to my turn . The agent tell me I’m later . I can not board . So my vacation was going to the floor . Just for their bad customer service agent in the airline

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

My flight was canceled I was promised a reginf still not received.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

Both legs of the flight were changed. The day of the flight and length of the trip.

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