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Cheap flights from Chicago O'Hare Intl Airport to Buffalo from $70

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 8/4. 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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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.
Frontier Logo
1:29 pm - 10:41 am
ORD
-
BUF
20h 12m
1 stop
Frontier Logo
2:49 pm - 7:55 am
BUF
-
ORD
18h 06m
1 stop
$159Frontier
Wed, Jun 3 - Fri, Jun 5
Frontier Logo
1:29 pm - 1:55 pm
ORD
-
BUF
23h 26m
1 stop
Frontier Logo
11:50 am - 7:50 pm
BUF
-
ORD
9h 00m
1 stop
$162Frontier
Tue, Jun 16 - Tue, Jun 23
Frontier Logo
1:29 pm - 1:55 pm
ORD
-
BUF
23h 26m
1 stop
Frontier Logo
12:29 pm - 7:50 pm
BUF
-
ORD
8h 21m
1 stop
$184Frontier
Tue, Jun 16 - Sat, Jun 20
Frontier Logo
6:55 am - 1:55 pm
ORD
-
BUF
6h 00m
1 stop
Frontier Logo
11:35 am - 7:53 pm
BUF
-
ORD
9h 18m
1 stop
$188Frontier
Wed, Jun 24 - Thu, Jul 9
Frontier Logo
6:55 am - 1:55 pm
ORD
-
BUF
6h 00m
1 stop
Frontier Logo
11:50 am - 7:50 pm
BUF
-
ORD
9h 00m
1 stop
$190Frontier
Wed, Jun 17 - Tue, Jun 23
Frontier Logo
1:29 pm - 1:55 pm
ORD
-
BUF
23h 26m
1 stop
Frontier Logo
11:50 am - 7:50 pm
BUF
-
ORD
9h 00m
1 stop
$191Frontier
Tue, Jun 16 - Tue, Jun 23
Frontier Logo
6:55 am - 1:55 pm
ORD
-
BUF
6h 00m
1 stop
Frontier Logo
9:02 pm - 9:11 am
BUF
-
ORD
13h 09m
1 stop
$200Frontier
Wed, Jul 1 - Sun, Jul 5
Frontier Logo
4:59 pm - 7:12 pm
ORD
-
BUF
25h 13m
1 stop
Frontier Logo
11:50 am - 7:50 pm
BUF
-
ORD
9h 00m
1 stop
$201Frontier
Tue, Jun 16 - Tue, Jun 23
Frontier Logo
6:55 am - 1:55 pm
ORD
-
BUF
6h 00m
1 stop
Frontier Logo
12:29 pm - 7:50 pm
BUF
-
ORD
8h 21m
1 stop
$204Frontier
Wed, Jun 24 - Sat, Jul 4
Frontier Logo
6:55 am - 1:55 pm
ORD
-
BUF
6h 00m
1 stop
Frontier Logo
12:29 pm - 7:50 pm
BUF
-
ORD
8h 21m
1 stop
$209Frontier
Wed, Jun 17 - Sat, Jun 20

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
Jun 3
ORD1:29 pmChicago O'Hare Intl
20h 12m
1 stop
BUF10:41 amBuffalo
Jun 5
BUF2:49 pmBuffalo
18h 06m
1 stop
ORD7:55 amChicago O'Hare Intl
$159
Frontier
Jun 16
ORD1:29 pmChicago O'Hare Intl
23h 26m
1 stop
BUF1:55 pmBuffalo
Jun 23
BUF11:50 amBuffalo
9h 00m
1 stop
ORD7:50 pmChicago O'Hare Intl
$162
Frontier
Jun 16
ORD1:29 pmChicago O'Hare Intl
23h 26m
1 stop
BUF1:55 pmBuffalo
Jun 20
BUF12:29 pmBuffalo
8h 21m
1 stop
ORD7:50 pmChicago O'Hare Intl
$184

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
Jul 14
ORD6:37 amChicago O'Hare Intl
6h 42m
1 stop
BUF2:19 pmBuffalo
Jul 15
BUF8:08 amBuffalo
2h 02m
ORD9:10 amChicago O'Hare Intl
$271
American Airlines
May 28
ORD10:18 amChicago O'Hare Intl
6h 33m
1 stop
BUF5:51 pmBuffalo
May 29
BUF4:57 pmBuffalo
2h 16m
ORD6:13 pmChicago O'Hare Intl
$359
American Airlines
May 29
ORD1:38 pmChicago O'Hare Intl
1h 49m
BUF4:27 pmBuffalo
Jun 5
BUF8:06 amBuffalo
2h 04m
ORD9:10 amChicago O'Hare Intl
$384

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 May 17, 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

Cheapest round-trip

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 6/3

1:29 pm-10:41 am

1 stop20h 12m

Buffalo

Fri 6/5

2:49 pm-7:55 am

1 stop18h 06m

$159

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 6/16

1:29 pm-1:55 pm

1 stop23h 26m

Buffalo

Tue 6/23

11:50 am-7:50 pm

1 stop9h 00m

$162

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 6/16

1:29 pm-1:55 pm

1 stop23h 26m

Buffalo

Sat 6/20

12:29 pm-7:50 pm

1 stop8h 21m

$184

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 6/24

6:55 am-1:55 pm

1 stop6h 00m

Buffalo

Thu 7/9

11:35 am-7:53 pm

1 stop9h 18m

$188

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 6/17

6:55 am-1:55 pm

1 stop6h 00m

Buffalo

Tue 6/23

11:50 am-7:50 pm

1 stop9h 00m

$190

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 6/16

1:29 pm-1:55 pm

1 stop23h 26m

Buffalo

Tue 6/23

11:50 am-7:50 pm

1 stop9h 00m

$191

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 7/1

6:55 am-1:55 pm

1 stop6h 00m

Buffalo

Sun 7/5

9:02 pm-9:11 am

1 stop13h 09m

$200

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 6/16

4:59 pm-7:12 pm

1 stop25h 13m

Buffalo

Tue 6/23

11:50 am-7:50 pm

1 stop9h 00m

$201
Quickest round-trip

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 6/24

6:55 am-1:55 pm

1 stop6h 00m

Buffalo

Sat 7/4

12:29 pm-7:50 pm

1 stop8h 21m

$204

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 6/17

6:55 am-1:55 pm

1 stop6h 00m

Buffalo

Sat 6/20

12:29 pm-7:50 pm

1 stop8h 21m

$209

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 typical price of a round-trip flight between Chicago O'Hare Intl Airport and Buffalo?

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 $242.

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 $313. Flights from Chicago O'Hare Intl Airport to Buffalo on a Thursday will generally be more expensive and average around $368. 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 $315. 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 $353 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 from Chicago O'Hare Intl Airport 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 $335 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 $254 on momondo.

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 May 2026, prices for Chicago O'Hare Intl Airport to Buffalo flights are approximately 71% 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

$174

Fastest flight time

1h 37m

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 $174. The best round-trip flight deal from Chicago O'Hare Intl Airport to Buffalo found on momondo in the last 72 hours is $349.
The fastest flight from Chicago O'Hare Intl Airport to Buffalo takes 1h 37m
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

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Buffalo

  • 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 37m.

  • 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
JetBluePriceFrom $98Free CancellationRating
7.1
2,976 reviews
Search JetBlue flights
FrontierPriceFrom $132Free CancellationRating
5.6
2,948 reviews
Search Frontier flights
American AirlinesPriceFrom $177Free CancellationRating
7.1
11,654 reviews
Search American Airlines flights
United AirlinesPriceFrom $206Free CancellationRating
7.4
9,731 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 $363, but momondo users have found United Airlines deals from Chicago O'Hare Intl Airport to Buffalo from as low as $206 round-trip. United Airlines has been scored 7.4/10 in 9,731 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 $318, however, with flight time and availability significantly affecting the price. American Airlines (7.1/10 from 11,654 user reviews) flies into Buffalo from Chicago O'Hare Intl Airport 24 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
Tonawanda
Grand Island
Williamsville
Orchard Park
Bowmansville
West Seneca
Lockport
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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