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Cheap flights from Buffalo to Chicago 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 Buffalo to Chicago departing on 6/30. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
2:49 pm - 7:55 am
BUF
-
ORD
18h 06m
1 stop
Frontier Logo
1:50 pm - 6:59 pm
ORD
-
BUF
28h 09m
2 stops
$247Frontier
Wed, May 27 - Thu, May 28
Frontier Logo
11:36 am - 7:41 pm
BUF
-
ORD
9h 05m
1 stop
Frontier Logo
5:11 pm - 6:59 pm
ORD
-
BUF
24h 48m
1 stop
$249Frontier
Tue, May 26 - Thu, May 28
Frontier Logo
2:50 pm - 7:53 pm
BUF
-
ORD
6h 03m
1 stop
Frontier Logo
7:05 am - 1:53 pm
ORD
-
BUF
5h 48m
1 stop
$250Frontier
Wed, Jul 29 - Mon, Aug 3
Frontier Logo
2:50 pm - 7:53 pm
BUF
-
ORD
6h 03m
1 stop
Frontier Logo
7:05 am - 1:53 pm
ORD
-
BUF
5h 48m
1 stop
$251Frontier
Wed, Jul 15 - Fri, Jul 17
Frontier Logo
2:50 pm - 8:03 am
BUF
-
ORD
18h 13m
1 stop
Frontier Logo
7:05 am - 7:06 pm
ORD
-
BUF
35h 01m
2 stops
$253Frontier
Fri, Jul 3 - Tue, Jul 7
Frontier Logo
11:36 am - 7:41 pm
BUF
-
ORD
9h 05m
1 stop
Frontier Logo
6:55 am - 1:54 pm
ORD
-
BUF
5h 59m
1 stop
$254Frontier
Thu, May 28 - Mon, Jun 1
Frontier Logo
2:49 pm - 7:29 pm
BUF
-
ORD
29h 40m
1 stop
Frontier Logo
8:00 pm - 10:40 am
ORD
-
BUF
37h 40m
2 stops
$255Frontier
Fri, Jun 5 - Fri, Jun 12
Frontier Logo
11:35 am - 7:53 am
BUF
-
ORD
21h 18m
1 stop
Frontier Logo
7:05 am - 10:54 am
ORD
-
BUF
26h 49m
1 stop
$256Frontier
Thu, Jul 16 - Mon, Jul 20
United Airlines Logo
7:00 am - 7:59 am
BUF
-
ORD
1h 59mnonstop
United Airlines Logo
6:17 pm - 9:03 pm
ORD
-
BUF
1h 46mnonstop
$257United Airlines
Tue, Jun 9 - Tue, Jun 23
Frontier Logo
11:50 am - 7:53 pm
BUF
-
ORD
9h 03m
1 stop
Frontier Logo
8:05 pm - 1:53 pm
ORD
-
BUF
16h 48m
2 stops
$259Frontier
Tue, Jul 14 - Thu, Jul 16

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

Our best American Airlines deals on Buffalo to Chicago O'Hare Intl Airport flight tickets
American Airlines
Aug 19
BUF6:10 pmBuffalo
2h 15m
ORD7:25 pmChicago O'Hare Intl
Sep 3
ORD6:50 amChicago O'Hare Intl
1h 45m
BUF9:35 amBuffalo
$261
American Airlines
Jun 4
BUF8:06 amBuffalo
2h 04m
ORD9:10 amChicago O'Hare Intl
Jun 6
ORD6:40 amChicago O'Hare Intl
1h 43m
BUF9:23 amBuffalo
$265
American Airlines
May 30
BUF10:01 amBuffalo
2h 08m
ORD11:09 amChicago O'Hare Intl
Jun 1
ORD7:11 pmChicago O'Hare Intl
1h 46m
BUF9:57 pmBuffalo
$266

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

Our best United Airlines deals on Buffalo to Chicago O'Hare Intl Airport flight tickets
United Airlines
Jun 9
BUF7:00 amBuffalo
1h 59m
ORD7:59 amChicago O'Hare Intl
Jun 23
ORD6:17 pmChicago O'Hare Intl
1h 46m
BUF9:03 pmBuffalo
$257
United Airlines
Sep 5
BUF7:00 amBuffalo
2h 00m
ORD8:00 amChicago O'Hare Intl
Sep 8
ORD6:35 amChicago O'Hare Intl
1h 39m
BUF9:14 amBuffalo
$274
United Airlines
May 24
BUF6:03 pmBuffalo
1h 59m
ORD7:02 pmChicago O'Hare Intl
May 28
ORD2:00 pmChicago O'Hare Intl
1h 46m
BUF4:46 pmBuffalo
$419

momondo Fare Finder

 
Customize your flight search to find flights from Buffalo to Chicago O'Hare Intl Airport 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 11, 2026.
Use the filters below to find and compare flights from Buffalo to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 5/27

2:49 pm-7:55 am

1 stop18h 06m

Chicago O'Hare Intl

Thu 5/28

1:50 pm-6:59 pm

2 stops28h 09m

$247

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 5/26

11:36 am-7:41 pm

1 stop9h 05m

Chicago O'Hare Intl

Thu 5/28

5:11 pm-6:59 pm

1 stop24h 48m

$249

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 7/29

2:50 pm-7:53 pm

1 stop6h 03m

Chicago O'Hare Intl

Mon 8/3

7:05 am-1:53 pm

1 stop5h 48m

$250

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 7/15

2:50 pm-7:53 pm

1 stop6h 03m

Chicago O'Hare Intl

Fri 7/17

7:05 am-1:53 pm

1 stop5h 48m

$251

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 7/3

2:50 pm-8:03 am

1 stop18h 13m

Chicago O'Hare Intl

Tue 7/7

7:05 am-7:06 pm

2 stops35h 01m

$253

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 5/28

11:36 am-7:41 pm

1 stop9h 05m

Chicago O'Hare Intl

Mon 6/1

6:55 am-1:54 pm

1 stop5h 59m

$254

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 6/5

2:49 pm-7:29 pm

1 stop29h 40m

Chicago O'Hare Intl

Fri 6/12

8:00 pm-10:40 am

2 stops37h 40m

$255

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 7/16

11:35 am-7:53 am

1 stop21h 18m

Chicago O'Hare Intl

Mon 7/20

7:05 am-10:54 am

1 stop26h 49m

$256
Quickest round-trip

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 6/9

7:00 am-7:59 am

Nonstop1h 59m

Chicago O'Hare Intl

Tue 6/23

6:17 pm-9:03 pm

Nonstop1h 46m

$257

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 7/14

11:50 am-7:53 pm

1 stop9h 03m

Chicago O'Hare Intl

Thu 7/16

8:05 pm-1:53 pm

2 stops16h 48m

$259

Flights are sorted by cheapest round-trip flights first.

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

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

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 Buffalo and Chicago O'Hare Intl Airport?

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

The month of August is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Buffalo averaging around $252.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Friday when prices can be found for as low as $425. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Buffalo because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $564.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from Buffalo in the morning is the least expensive time of day to depart. momondo users have found prices as low as $443 when looking at flights departing in the morning. Try not to purchase tickets at noon because they tend to be around $616. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

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

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Buffalo when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $311 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Buffalo for as low as $161 on momondo.

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

You could potentially save up to 1% on your flight if you consider stops on a Buffalo to Chicago O'Hare Intl Airport flight.

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

As of May 2026, prices for Buffalo to Chicago O'Hare Intl Airport flights are approximately 43% more expensive when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$191

Fastest flight time

1h 48m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Buffalo in the past 72 hours is $191. The best round-trip flight deal from Buffalo to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $367.
The fastest flight from Buffalo to Chicago O'Hare Intl Airport takes 1h 48m
Direct flights go from Buffalo to Chicago O'Hare Intl Airport every day.
Search flight deals

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

  • How far is Buffalo to Chicago O'Hare Intl by plane?

    The straight-line distance from Buffalo to Chicago O'Hare Intl is 464.0 mi. In terms of flight time, this usually takes a little over 1h 48m.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Buffalo Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Buffalo to Chicago O'Hare Intl Airport?

  • What is the most popular airline from Buffalo to Chicago O'Hare Intl Airport?

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

Compare and see reviews for airlines that fly from Buffalo to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $92Free CancellationRating
5.6
2,951 reviews
Search Frontier flights
American AirlinesPriceFrom $145Free CancellationRating
7.1
11,664 reviews
Search American Airlines flights
United AirlinesPriceFrom $188Free CancellationRating
7.4
9,701 reviews
Search United Airlines flights

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

    Across 21 United Airlines flights from Buffalo to Chicago O'Hare Intl Airport this week, the average price was $321, with the best United Airlines deals starting from $188 round-trip. 9,701 users have rated United Airlines on momondo, with an average score of 7.4/10.

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

    American Airlines is also a popular choice for this route. American Airlines flight deals for Buffalo to Chicago O'Hare Intl Airport start from as low as $145 round-trip, depending on your selected dates, with average American Airlines deals seen on momondo around $311. American Airlines operates 25 flights to Chicago O'Hare Intl Airport from Buffalo in an average week. Users have rated it 7.1/10 across 11,664 reviews.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
South Haven
Schaumburg
Rockford
Merrillville
Gurnee
Rosemont
Naperville
New Buffalo
Orland Park
Oak Brook
Kenosha
Joliet
Aurora
Racine
Janesville
Hammond
Evanston
Elgin
Tinley Park

Why use momondo?

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

Finding the right flight to Chicago from Buffalo is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Buffalo to Chicago flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Chicago from Buffalo. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Chicago from Buffalo 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 Chicago O'Hare Intl Airport trip

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