ORD - BUF

$64 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 9/11. 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
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

Thu, Sep 11 - Mon, Sep 15
American Airlines Logo
8:38 am - 11:11 amORD-BUF
1h 33mnonstop
American Airlines Logo
7:30 am - 8:25 amBUF-ORD
1h 55mnonstop
$127American Airlines
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Wed, Aug 13 - Sat, Aug 16
United Airlines Logo
7:15 am - 9:54 amORD-BUF
1h 39mnonstop
United Airlines Logo
6:45 am - 7:41 amBUF-ORD
1h 56mnonstop
$163United Airlines
Find Deal
Mon, Jul 28 - Tue, Aug 5
American Airlines Logo
5:20 pm - 7:54 pmORD-BUF
1h 34mnonstop
American Airlines Logo
8:02 am - 8:56 amBUF-ORD
1h 54mnonstop
$172American Airlines
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Tue, Sep 23 - Tue, Sep 30
Delta Logo
7:00 am - 12:12 pmORD-BUF
4h 12m1 stop
Delta Logo
12:09 pm - 4:38 pmBUF-ORD
5h 29m1 stop
$177Delta
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Thu, Sep 11 - Mon, Sep 15
United Airlines Logo
7:10 am - 9:53 amORD-BUF
1h 43mnonstop
United Airlines Logo
7:05 am - 8:03 amBUF-ORD
1h 58mnonstop
$187United Airlines
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Tue, Aug 26 - Sat, Aug 30
Delta Logo
6:00 am - 1:39 pmORD-BUF
6h 39m1 stop
Delta Logo
12:02 pm - 7:19 pmBUF-ORD
8h 17m1 stop
$198Delta
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Thu, Sep 11 - Mon, Sep 15
JetBlue Logo
1:36 pm - 10:00 pmORD-BUF
7h 24m1 stop
JetBlue Logo
6:00 am - 12:10 pmBUF-ORD
7h 10m1 stop
$207JetBlue
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Thu, Sep 11 - Mon, Sep 15
JetBlue Logo
1:36 pm - 7:20 pmORD-BUF
4h 44m1 stop
JetBlue Logo
6:00 am - 12:10 pmBUF-ORD
7h 10m1 stop
$210JetBlue
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Thu, Jul 31 - Mon, Aug 4
Frontier Logo
4:37 pm - 7:47 amORD-BUF
14h 10m1 stop
Frontier Logo
8:50 am - 11:31 pmBUF-ORD
15h 41m1 stop
$311Frontier
Find Deal
Thu, Jul 24 - Sun, Jul 27
Frontier Logo
4:37 pm - 7:47 amORD-BUF
14h 10m1 stop
Frontier Logo
9:12 pm - 11:31 pmBUF-ORD
27h 19m1 stop
$318Frontier
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
Useful Info

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, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Buffalo back to Chicago O'Hare Airport, the best deals are generally found on Friday, with Monday 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 $253 (return) on average. On the other hand, the most expensive months are July and October, where the average cost of round-trip tickets is $388 and $377 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 $348 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 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$64
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 14% increase in price.
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 $64 for a one-way ticket and $127 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, Air Canada, and JetBlue 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 Canadair (Bombardier) Regional Jet CRJ-550 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 $383 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 $325 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 $154 or less one-way and $249 or less round-trip.

Prefer to fly direct from Chicago O'Hare Airport 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
See more direct flights

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 8790 reviews
7.0Entertainment
8.1Crew
6.6Food
7.3Comfort
7.7Boarding
Airline reviews

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

6.0 GoodAndrea, May 2025ORD - ATL
Read more United Airlines reviews

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

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

Our seats were all the way in back of the plane,

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

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.

The meals were mediocre and the alcohol selection was poor. I enjoyed the selection of movies and other entertainment.

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks

My boarding pass wouldn't pull up in the app very easily and had to really dig through my email. That caused a delay in TSA..

I had a TERRIBLE experience with the AA crew. I believe it was disability-related. It’s unlikely I will fly AA again.

Book with frontier airlines with the mentality that they'll cancel your flight, kick you off and lose your luggage. Anything besides that is a win. Compare prices with other airlines (to include luggage) and if frontier is still worth it, book it but know all of their policies.

You get what you pay for nothing essentially but a hard uncomfortable seat that doesn’t recline and kids screaming all around you and chaotic boarding and limited check bag weight allowance when compared to other airlines

I never got to experience the flight because they delayed my first flight and I missed this one. Then Frontier didn't want to help me rebook a flight to get me to my final destination.

The Boarding process in Denver was chaotic, and since the line was so long, we were lined up very far from the gate. If there were any announcements from the gate staff, we didn't hear them. The flight attendants were spectacular. The only negative part of the flight was sitting by a 2 1/2 year old who was unruly and unfortunately had parents that matched his behaviors. Also, the restaurants in Denver on the E concourse, they didn't have food (passengers could only order 1 item on the entire menu) or the restaurants had 12-14 people waiting for orders to be prepared and another 6 people waiting to order. If you have a layover in Denver and need to grab food, be prepared to visit the shops with pre-packaged sandwiches, or you can visit another concourse but it may take a while to transit throughout the airport.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

Although an hour and a half early was told by staff at check in they had overbooked and could not check us in for the flight.

The crew was delayed because they came on another flight that was delayed due to weather 10pm flight left at 1.30 am The airline made no effort to align alternate crew

Plane was down graded and I lost my uncharged exit row with more leg room. No mention or offer of refund from podium. Flight attendant was nice to explain this happens often and that I could request a refund via online form submission. I did this and have heard nothing back.

Worst airline experience. They were rude and kept changing our seats and/or giving our seats away so our family didn’t get to sit with each other. Almost everyone we dealt with at both airports with this airline was rude. The app kept giving us wrong information making things take longer. Dealing with them before TSA can take close to an hour…longer than I’ve ever had to deal with before. Never using this airline again.

Horrendous. I do not recommend Frontier. The passengers lack manners and decency, and the flight attendants lack professionalism. If I wasn’t in a bind to fly with 48 hours notice for a job interview, I would not have selected a flight with Frontier and I never plan to fly with them in the future.

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

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