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Cheap flights from Chicago O'Hare Intl Airport to Buffalo from $73

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Buffalo departing on 3/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:40 am - 9:29 am
ORD
-
BUF
1h 49mnonstop
American Airlines Logo
6:00 am - 7:03 am
BUF
-
ORD
2h 03mnonstop
$145American Airlines
Thu, Jun 18 - Sun, Jun 21
Multiple Airlines Logo
1:40 pm - 12:13 pm
ORD
-
BUF
21h 33m
1 stop
Multiple Airlines Logo
1:08 pm - 6:54 pm
BUF
-
ORD
6h 46m
1 stop
$151Multiple Airlines
Thu, Apr 30 - Sat, May 2
Multiple Airlines Logo
5:01 am - 12:13 pm
ORD
-
BUF
6h 12m
1 stop
Multiple Airlines Logo
1:08 pm - 6:54 pm
BUF
-
ORD
6h 46m
1 stop
$158Multiple Airlines
Tue, May 19 - Wed, May 20
Frontier Logo
10:25 am - 7:13 pm
ORD
-
BUF
7h 48m
1 stop
Frontier Logo
1:08 pm - 10:39 pm
BUF
-
ORD
10h 31m
1 stop
$160Frontier
Thu, May 7 - Sat, May 9
Frontier Logo
5:01 am - 12:13 pm
ORD
-
BUF
6h 12m
1 stop
Frontier Logo
1:08 pm - 10:39 pm
BUF
-
ORD
10h 31m
1 stop
$161Frontier
Tue, May 19 - Wed, May 20
Multiple Airlines Logo
5:09 pm - 12:13 pm
ORD
-
BUF
18h 04m
2 stops
Multiple Airlines Logo
1:08 pm - 6:54 pm
BUF
-
ORD
6h 46m
1 stop
$163Multiple Airlines
Thu, Apr 30 - Sat, May 2
Multiple Airlines Logo
1:40 pm - 12:13 pm
ORD
-
BUF
21h 33m
1 stop
Multiple Airlines Logo
1:08 pm - 10:39 pm
BUF
-
ORD
10h 31m
1 stop
$164Multiple Airlines
Thu, Apr 16 - Sun, Apr 19
American Airlines Logo
6:40 am - 9:29 am
ORD
-
BUF
1h 49mnonstop
American Airlines Logo
6:00 am - 7:03 am
BUF
-
ORD
2h 03mnonstop
$165American Airlines
Fri, Jun 5 - Sun, Jun 7
Frontier Logo
4:44 pm - 11:05 am
ORD
-
BUF
17h 21m
1 stop
Frontier Logo
12:50 pm - 8:23 am
BUF
-
ORD
20h 33m
1 stop
$170Frontier
Sat, Mar 7 - Mon, Mar 9
Multiple Airlines Logo
5:05 am - 12:54 pm
ORD
-
BUF
6h 49m
1 stop
Multiple Airlines Logo
9:25 pm - 5:46 pm
BUF
-
ORD
21h 21m
1 stop
$171Multiple Airlines
Thu, Mar 5 - Mon, Mar 9

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
May 7
ORD10:25 amChicago O'Hare Intl
7h 48m
1 stop
BUF7:13 pmBuffalo
May 9
BUF1:08 pmBuffalo
10h 31m
1 stop
ORD10:39 pmChicago O'Hare Intl
$160
Frontier
May 19
ORD5:01 amChicago O'Hare Intl
6h 12m
1 stop
BUF12:13 pmBuffalo
May 20
BUF1:08 pmBuffalo
10h 31m
1 stop
ORD10:39 pmChicago O'Hare Intl
$161
Frontier
Mar 7
ORD4:44 pmChicago O'Hare Intl
17h 21m
1 stop
BUF11:05 amBuffalo
Mar 9
BUF12:50 pmBuffalo
20h 33m
1 stop
ORD8:23 amChicago O'Hare Intl
$170

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
Jun 18
ORD6:40 amChicago O'Hare Intl
1h 49m
BUF9:29 amBuffalo
Jun 21
BUF6:00 amBuffalo
2h 03m
ORD7:03 amChicago O'Hare Intl
$145
American Airlines
Jun 5
ORD6:40 amChicago O'Hare Intl
1h 49m
BUF9:29 amBuffalo
Jun 7
BUF6:00 amBuffalo
2h 03m
ORD7:03 amChicago O'Hare Intl
$165
American Airlines
Apr 30
ORD7:05 amChicago O'Hare Intl
8h 27m
1 stop
BUF4:32 pmBuffalo
May 2
BUF3:01 pmBuffalo
2h 06m
ORD4:07 pmChicago O'Hare Intl
$194

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Buffalo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 16, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Buffalo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 6/18

6:40 am-9:29 am

Nonstop1h 49m

Buffalo

Sun 6/21

6:00 am-7:03 am

Nonstop2h 03m

$145

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 4/30

1:40 pm-12:13 pm

1 stop21h 33m

Buffalo

Sat 5/2

1:08 pm-6:54 pm

1 stop6h 46m

$151

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 5/19

5:01 am-12:13 pm

1 stop6h 12m

Buffalo

Wed 5/20

1:08 pm-6:54 pm

1 stop6h 46m

$158

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 5/7

10:25 am-7:13 pm

1 stop7h 48m

Buffalo

Sat 5/9

1:08 pm-10:39 pm

1 stop10h 31m

$160

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 5/19

5:01 am-12:13 pm

1 stop6h 12m

Buffalo

Wed 5/20

1:08 pm-10:39 pm

1 stop10h 31m

$161

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 4/30

5:09 pm-12:13 pm

2 stops18h 04m

Buffalo

Sat 5/2

1:08 pm-6:54 pm

1 stop6h 46m

$163

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 4/16

1:40 pm-12:13 pm

1 stop21h 33m

Buffalo

Sun 4/19

1:08 pm-10:39 pm

1 stop10h 31m

$164

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Fri 6/5

6:40 am-9:29 am

Nonstop1h 49m

Buffalo

Sun 6/7

6:00 am-7:03 am

Nonstop2h 03m

$165

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sat 3/7

4:44 pm-11:05 am

1 stop17h 21m

Buffalo

Mon 3/9

12:50 pm-8:23 am

1 stop20h 33m

$170

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 3/5

5:05 am-12:54 pm

1 stop6h 49m

Buffalo

Mon 3/9

9:25 pm-5:46 pm

1 stop21h 21m

$171

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Buffalo from

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

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 $277. Flights from Chicago O'Hare Intl Airport to Buffalo on a Sunday will generally be more expensive and average around $348. 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 $304. 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 $347 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 $308 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 $257 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.

Can stopping save me money on Chicago O'Hare Intl Airport to Buffalo flights?

No. A direct flight is the cheapest option for a flight between Chicago O'Hare Intl Airport to Buffalo.

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

As of February 2026, prices for Chicago O'Hare Intl Airport to Buffalo flights are approximately 14% 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

$180

Fastest flight time

1h 41m

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 $180. The best round-trip flight deal from Chicago O'Hare Intl Airport to Buffalo found on momondo in the last 72 hours is $323.
The fastest flight from Chicago O'Hare Intl Airport to Buffalo takes 1h 41m
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).
Search flight deals

  • 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 41m.

  • 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?

  • 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?

  • What is the most popular airline from Chicago O'Hare Intl Airport to 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
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $132Free CancellationRating
5.7
3,047 reviews
Search Frontier flights
American AirlinesPriceFrom $177Free CancellationRating
7.2
11,294 reviews
Search American Airlines flights
United AirlinesPriceFrom $197Free CancellationRating
7.4
9,299 reviews
Search United Airlines flights

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

    United Airlines operates around 19 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 $353, 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 9,299 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 $303, however, with flight time and availability significantly affecting the price. American Airlines (7.2/10 from 11,294 user reviews) flies into Buffalo from Chicago O'Hare Intl Airport 8 times in an average week so prices can vary.

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Batavia
Cheektowaga
Amherst
Grand Island
Tonawanda
Williamsville
Orchard Park
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.

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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