What airlines fly to Buffalo?

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Buffalo from Chicago O'Hare Intl Airport according to our data. American Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Buffalo. Keep in mind that there are 3 different airlines that fly to Buffalo on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Chicago O'Hare Intl to Buffalo?

JetBlue and United Airlines are the most popular carriers operating from Chicago O'Hare Intl to Buffalo

How many flights depart from Chicago O'Hare Intl Airport to Buffalo on average per day?

21 flights are operational daily from Chicago O'Hare Intl Airport to Buffalo as of March 2026. The most popular departure time for this route is 8:00PM, with 54% of flights per day taking off in the evening.

How many flights depart from Chicago O'Hare Intl Airport to Buffalo on average per week?

As of March 2026, there are 152 flights per week flying from Chicago O'Hare Intl Airport to Buffalo. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Buffalo Airport?

Prices for flights from Chicago O'Hare Intl Airport to Buffalo Airport are updated daily.

How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Buffalo Airport?

As of March 2026, there are 3 operators available to choose from for flights from Chicago O'Hare Intl Airport to Buffalo Airport.

How old do you have to be to fly from Chicago O'Hare Intl Airport to Buffalo Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Buffalo Airport.

What documentation or ID do you need to fly to Buffalo Airport?

The required travel and health documents for your Buffalo Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buffalo Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$72 Cheap Flights from Chicago O'Hare Intl Airport to Buffalo in 2026

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Find the cheapest flights from Chicago O'Hare Intl Airport to Buffalo

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:08 pm - 11:40 am

ORD

BUF

16h 32m

1 stop

1:56 pm - 10:23 am

BUF

ORD

21h 27m

1 stop

$139Multiple Airlines

Wed, Apr 15 - Wed, Apr 22

11:07 am - 11:40 am

ORD

BUF

23h 33m

1 stop

1:56 pm - 12:24 am

BUF

ORD

11h 28m

2 stops

$168Multiple Airlines

Wed, Apr 15 - Wed, Apr 22

6:08 pm - 12:52 pm

ORD

BUF

17h 44m

1 stop

12:32 pm - 9:40 am

BUF

ORD

22h 08m

1 stop

$169Frontier

Tue, Apr 14 - Mon, Apr 20

6:08 pm - 11:40 am

ORD

BUF

16h 32m

1 stop

1:11 pm - 9:12 pm

BUF

ORD

9h 01m

1 stop

$170Multiple Airlines

Wed, Apr 15 - Sat, Apr 18

6:08 pm - 11:40 am

ORD

BUF

16h 32m

1 stop

1:11 pm - 9:12 pm

BUF

ORD

9h 01m

1 stop

$173Multiple Airlines

Wed, Apr 15 - Sat, Apr 18

6:08 pm - 12:52 pm

ORD

BUF

17h 44m

1 stop

1:11 pm - 9:12 pm

BUF

ORD

9h 01m

1 stop

$179Multiple Airlines

Tue, Apr 14 - Sat, Apr 18

5:50 am - 12:13 pm

ORD

BUF

5h 23m

1 stop

8:18 pm - 11:06 pm

BUF

ORD

27h 48m

1 stop

$180Frontier

Sat, Apr 18 - Sun, Apr 19

6:08 pm - 11:40 am

ORD

BUF

16h 32m

1 stop

1:11 pm - 10:39 pm

BUF

ORD

10h 28m

1 stop

$182Frontier

Wed, Apr 15 - Sat, Apr 18

4:28 pm - 11:13 am

ORD

BUF

17h 45m

1 stop

12:32 pm - 9:40 am

BUF

ORD

22h 08m

1 stop

$190Frontier

Thu, Apr 16 - Mon, Apr 20

6:08 pm - 12:52 pm

ORD

BUF

17h 44m

1 stop

1:56 pm - 10:02 am

BUF

ORD

21h 06m

1 stop

$192Frontier

Tue, Apr 14 - Tue, Apr 21

Frontier flights from Chicago O'Hare Intl Airport to Buffalo

Our best Frontier deals on Chicago O'Hare Intl Airport to Buffalo flight tickets

Frontier

Apr 14

ORD6:08 pmChicago O'Hare Intl

17h 44m

1 stop

BUF12:52 pmBuffalo

Apr 20

BUF12:32 pmBuffalo

22h 08m

1 stop

ORD9:40 amChicago O'Hare Intl

$169

Frontier

Apr 18

ORD5:50 amChicago O'Hare Intl

5h 23m

1 stop

BUF12:13 pmBuffalo

Apr 19

BUF8:18 pmBuffalo

27h 48m

1 stop

ORD11:06 pmChicago O'Hare Intl

$180

Frontier

Apr 15

ORD6:08 pmChicago O'Hare Intl

16h 32m

1 stop

BUF11:40 amBuffalo

Apr 18

BUF1:11 pmBuffalo

10h 28m

1 stop

ORD10:39 pmChicago O'Hare Intl

$182

American Airlines flights from Chicago O'Hare Intl Airport to Buffalo

Our best American Airlines deals on Chicago O'Hare Intl Airport to Buffalo flight tickets

American Airlines

May 19

ORD2:40 pmChicago O'Hare Intl

1h 50m

BUF5:30 pmBuffalo

May 26

BUF7:40 pmBuffalo

5h 58m

1 stop

ORD12:38 amChicago O'Hare Intl

$247

American Airlines

Apr 9

ORD8:10 amChicago O'Hare Intl

1h 41m

BUF10:51 amBuffalo

Apr 15

BUF6:00 pmBuffalo

2h 17m

ORD7:17 pmChicago O'Hare Intl

$251

American Airlines

Apr 13

ORD6:53 pmChicago O'Hare Intl

1h 43m

BUF9:36 pmBuffalo

Apr 15

BUF6:00 pmBuffalo

2h 17m

ORD7:17 pmChicago O'Hare Intl

$252

momondo Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Buffalo that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 4/15

6:08 pm-11:40 am

1 stop16h 32m

Buffalo

Wed 4/22

1:56 pm-10:23 am

1 stop21h 27m

$139

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 4/15

11:07 am-11:40 am

1 stop23h 33m

Buffalo

Wed 4/22

1:56 pm-12:24 am

2 stops11h 28m

$168

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 4/14

6:08 pm-12:52 pm

1 stop17h 44m

Buffalo

Mon 4/20

12:32 pm-9:40 am

1 stop22h 08m

$169

Quickest round-trip

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 4/15

6:08 pm-11:40 am

1 stop16h 32m

Buffalo

Sat 4/18

1:11 pm-9:12 pm

1 stop9h 01m

$170

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 4/15

6:08 pm-11:40 am

1 stop16h 32m

Buffalo

Sat 4/18

1:11 pm-9:12 pm

1 stop9h 01m

$173

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 4/14

6:08 pm-12:52 pm

1 stop17h 44m

Buffalo

Sat 4/18

1:11 pm-9:12 pm

1 stop9h 01m

$179

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sat 4/18

5:50 am-12:13 pm

1 stop5h 23m

Buffalo

Sun 4/19

8:18 pm-11:06 pm

1 stop27h 48m

$180

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 4/15

6:08 pm-11:40 am

1 stop16h 32m

Buffalo

Sat 4/18

1:11 pm-10:39 pm

1 stop10h 28m

$182

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 4/16

4:28 pm-11:13 am

1 stop17h 45m

Buffalo

Mon 4/20

12:32 pm-9:40 am

1 stop22h 08m

$190

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 4/14

6:08 pm-12:52 pm

1 stop17h 44m

Buffalo

Tue 4/21

1:56 pm-10:02 am

1 stop21h 06m

$192

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Buffalo

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Buffalo?

If you aren’t able to travel during the month of January, then book flights to Buffalo from Chicago O'Hare Intl Airport during September instead. Flights to Buffalo in September, while not as cheap as those in January, still average around $237.

What is the cheapest day to depart on your flight to Buffalo?

Our data shows that Tuesday is the least expensive day to fly to Buffalo. Tickets to fly out on this day can be as low as $297. Flights from Chicago O'Hare Intl Airport to Buffalo on a Sunday will generally be more expensive and average around $350. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Buffalo?

In the evening is the cheapest time of day to fly from Chicago O'Hare Intl Airport to Buffalo when you can find flight prices for as low as $318. Flying to Buffalo in the evening is an ideal time because this is during off-peak travel hours. At noon is when there is more demand to fly to Buffalo, so prices are often more expensive at around $346 per ticket.

What is the cheapest Chicago O'Hare Intl to Buffalo flight route?

Fly from Chicago O'Hare Intl to Buffalo for the best Chicago O'Hare Intl - Buffalo flight prices

How far in advance should I book a flight to Buffalo?

You are more likely to see cheaper flights to Buffalo from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Buffalo for around $313 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buffalo from Chicago O'Hare Intl Airport for as low as $250 on momondo.

What cabin class options are available on Chicago O'Hare Intl to Buffalo flights?

There are 4 cabin classes available to choose from on Chicago O'Hare Intl to Buffalo flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Chicago O'Hare Intl Airport to Buffalo flight prices changed over time?

As of March 2026, prices for Chicago O'Hare Intl Airport to Buffalo flights are approximately 106% more expensive when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to Buffalo

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Buffalo according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Buffalo (ORD to BUF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Buffalo

Best Price Found	$184
Fastest flight time	1h 39m
Direct flights	Every day
Airports in Buffalo	1 airport

The best one-way flight to Buffalo from Chicago O'Hare Intl Airport in the past 72 hours is $184. The best round-trip flight deal from Chicago O'Hare Intl Airport to Buffalo found on momondo in the last 72 hours is $317.

The fastest flight from Chicago O'Hare Intl Airport to Buffalo takes 1h 39m

Direct flights go from Chicago O'Hare Intl Airport to Buffalo every day.

There is 1 airport in Buffalo. From Chicago O'Hare Intl Airport there are direct flights to Buffalo (BUF).

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How far is Chicago O'Hare Intl to Buffalo by plane?
A flight from Chicago O'Hare Intl to Buffalo will travel around 464.0 mi. In terms of flight time, this usually takes a little over 1h 39m.
When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Buffalo Airport?
Prices for flights from Chicago O'Hare Intl Airport to Buffalo Airport are updated daily.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Buffalo Airport?
As of March 2026, there are 3 operators available to choose from for flights from Chicago O'Hare Intl Airport to Buffalo Airport.
How old do you have to be to fly from Chicago O'Hare Intl Airport to Buffalo Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Buffalo Airport.
What documentation or ID do you need to fly to Buffalo Airport?
The required travel and health documents for your Buffalo Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buffalo Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Chicago O'Hare Intl Airport to Buffalo?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Chicago O'Hare Intl Airport to Buffalo is Airbus A319 (20.24% of total bookings). The next most popular plane models are Embraer 175 (18.25%), Canadair (Bombardier) Regional Jet CRJ-550 (17.66%), and Boeing 737-800 (8.53%).
What is the most popular airline from Chicago O'Hare Intl Airport to Buffalo?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Chicago O'Hare Intl Airport to Buffalo is American Airlines (54% of total bookings). The next most popular airlines are United Airlines (42%) and Frontier (4%).

Best airlines flying from Chicago O'Hare Intl Airport to Buffalo

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Buffalo with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $132	Free Cancellation	Rating 5.7 3,024 reviews	Search Frontier flights
American Airlines	PriceFrom $177	Free Cancellation	Rating 7.1 11,484 reviews	Search American Airlines flights
United Airlines	PriceFrom $197	Free Cancellation	Rating 7.4 9,454 reviews	Search United Airlines flights

United Airlines Flights From Chicago O'Hare Intl Airport to Buffalo
United Airlines operates around 18 flights from Chicago O'Hare Intl Airport to Buffalo every week. The average price of these flights found in the last 72 hours has been $352, but momondo users have found United Airlines deals from Chicago O'Hare Intl Airport to Buffalo from as low as $197 round-trip. United Airlines has been scored 7.4/10 in 9,454 reviews.
American Airlines Flights From Chicago O'Hare Intl Airport to Buffalo
$177 is the best American Airlines flight deal from Chicago O'Hare Intl Airport to Buffalo found on momondo over the last 72 hours. The average American Airlines ticket price found was closer to $296, however, with flight time and availability significantly affecting the price. American Airlines (7.1/10 from 11,484 user reviews) flies into Buffalo from Chicago O'Hare Intl Airport 19 times in an average week so prices can vary.

Batavia

Cheektowaga

Amherst

Grand Island

Tonawanda

Orchard Park

Williamsville

Lockport

West Seneca

Bowmansville

East Aurora

Eden

Angola

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Buffalo?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Buffalo for you.

Can I find flights from Chicago to Buffalo with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Buffalo from Chicago with this policy.

How can momondo help me find flights from Chicago to Buffalo?

Once you have performed a search for Chicago to Buffalo flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Chicago to Buffalo right now. Can momondo alert me if prices change?

Price alerts on flights to Buffalo from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Buffalo

What is the cheapest month to fly to Buffalo?

What is the cheapest day to depart on your flight to Buffalo?

What is the cheapest time of day to depart on your flight to Buffalo?

What is the cheapest Chicago O'Hare Intl to Buffalo flight route?

How far in advance should I book a flight to Buffalo?

What cabin class options are available on Chicago O'Hare Intl to Buffalo flights?

How have Chicago O'Hare Intl Airport to Buffalo flight prices changed over time?

What is the cheapest airline that flies from Chicago O'Hare Intl to Buffalo?

What airlines fly to Buffalo?

How many flights depart from Chicago O'Hare Intl Airport to Buffalo on average per day?

How many flights depart from Chicago O'Hare Intl Airport to Buffalo on average per week?

When to book flights from Chicago O'Hare Intl Airport to Buffalo

Cheap Chicago O'Hare Intl Airport to Buffalo (ORD to BUF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Buffalo

Best Price Found

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Airports in Buffalo

Best airlines flying from Chicago O'Hare Intl Airport to Buffalo

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Buffalo with momondo

United Airlines Flights From Chicago O'Hare Intl Airport to Buffalo

American Airlines Flights From Chicago O'Hare Intl Airport to Buffalo

Traveling to a place near Buffalo?

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An easier way to manage your Buffalo trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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