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Cheap flights from Buffalo to Chicago 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 Buffalo to Chicago departing on 11/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Buffalo to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
1:13 pm - 8:15 amBUF  Buffalo-ORD Chicago O'Hare Intl
20h 02m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
9:33 pm - 12:18 pmORD  Chicago O'Hare Intl-BUF Buffalo
13h 45m1 stop Atlanta Hartsfield-Jackson
$239Frontier
Fri, Oct 9 - Mon, Oct 12
Frontier Logo
11:36 am - 8:08 pmBUF  Buffalo-ORD Chicago O'Hare Intl
9h 32m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
7:05 am - 12:55 pmORD  Chicago O'Hare Intl-BUF Buffalo
28h 50m1 stop Atlanta Hartsfield-Jackson
$239Frontier
Wed, Sep 2 - Tue, Sep 8
American Airlines Logo
10:11 am - 11:17 amBUF  Buffalo-ORD Chicago O'Hare Intl
2h 06mnonstop
American Airlines Logo
9:10 pm - 12:02 amORD  Chicago O'Hare Intl-BUF Buffalo
1h 52mnonstop
$239American Airlines
Sat, Sep 5 - Sat, Sep 5
American Airlines Logo
5:02 am - 5:56 amBUF  Buffalo-ORD Chicago O'Hare Intl
1h 54mnonstop
American Airlines Logo
2:19 pm - 5:04 pmORD  Chicago O'Hare Intl-BUF Buffalo
1h 45mnonstop
$239American Airlines
Sat, Sep 5 - Sun, Sep 6
Frontier Logo
11:36 am - 7:53 amBUF  Buffalo-ORD Chicago O'Hare Intl
21h 17m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
7:28 pm - 12:50 pmORD  Chicago O'Hare Intl-BUF Buffalo
16h 22m1 stop Atlanta Hartsfield-Jackson
$239Frontier
Fri, Sep 4 - Fri, Sep 11
American Airlines Logo
10:11 am - 11:17 amBUF  Buffalo-ORD Chicago O'Hare Intl
2h 06mnonstop
American Airlines Logo
2:19 pm - 5:04 pmORD  Chicago O'Hare Intl-BUF Buffalo
1h 45mnonstop
$239American Airlines
Sat, Sep 5 - Sun, Sep 6
Delta Logo
6:00 am - 1:13 pmBUF  Buffalo-ORD Chicago O'Hare Intl
8h 13m1 stop New York LaGuardia
Delta Logo
5:29 pm - 10:38 pmORD  Chicago O'Hare Intl-BUF Buffalo
4h 09m1 stop Detroit Metropolitan Wayne County
$247Delta
Sat, Nov 7 - Sat, Nov 7
Multiple Airlines Logo
1:40 pm - 6:23 pmBUF  Buffalo-ORD Chicago O'Hare Intl
5h 43m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
3:00 pm - 10:56 pmORD  Chicago O'Hare Intl-BUF Buffalo
6h 56m1 stop Fort Lauderdale
$251Multiple Airlines
Fri, Sep 11 - Sun, Sep 13
United Airlines Logo
6:37 am - 7:37 amBUF  Buffalo-ORD Chicago O'Hare Intl
2h 00mnonstop
United Airlines Logo
2:07 pm - 4:54 pmORD  Chicago O'Hare Intl-BUF Buffalo
1h 47mnonstop
$260United Airlines
Fri, Sep 18 - Sat, Sep 19
United Airlines Logo
6:55 am - 7:55 amBUF  Buffalo-ORD Chicago O'Hare Intl
2h 00mnonstop
United Airlines Logo
6:15 pm - 9:07 pmORD  Chicago O'Hare Intl-BUF Buffalo
1h 52mnonstop
$260United Airlines
Fri, Sep 4 - Mon, Sep 7

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Delta flights from Buffalo to Chicago O'Hare Intl Airport

Our best Delta deals on Buffalo to Chicago O'Hare Intl Airport flight tickets
Delta
Sep 9
BUF6:28 pmBuffalo
4h 50m
1 stop
ORD10:18 pmChicago O'Hare Intl
Sep 11
ORD7:05 amChicago O'Hare Intl
3h 17m
1 stop
BUF11:22 amBuffalo
$252
Delta
Sep 5
BUF6:40 amBuffalo
5h 02m
1 stop
ORD10:42 amChicago O'Hare Intl
Sep 5
ORD5:18 pmChicago O'Hare Intl
4h 51m
1 stop
BUF11:09 pmBuffalo
$257
Delta
Sep 4
BUF3:54 pmBuffalo
3h 35m
1 stop
ORD6:29 pmChicago O'Hare Intl
Sep 7
ORD7:30 pmChicago O'Hare Intl
3h 28m
1 stop
BUF11:58 pmBuffalo
$280

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
Sep 18
BUF6:37 amBuffalo
2h 00m
ORD7:37 amChicago O'Hare Intl
Sep 19
ORD2:07 pmChicago O'Hare Intl
1h 47m
BUF4:54 pmBuffalo
$260
United Airlines
Sep 11
BUF5:58 pmBuffalo
2h 02m
ORD7:00 pmChicago O'Hare Intl
Sep 13
ORD6:15 pmChicago O'Hare Intl
1h 52m
BUF9:07 pmBuffalo
$265
United Airlines
Oct 9
BUF7:00 amBuffalo
2h 00m
ORD8:00 amChicago O'Hare Intl
Oct 11
ORD2:00 pmChicago O'Hare Intl
1h 43m
BUF4:43 pmBuffalo
$293

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 August 12, 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 Buffalo - ORD Chicago O'Hare Intl

BUFORD

Buffalo

Fri 10/9

1:13 pm-8:15 am

1 stop20h 02m

Chicago O'Hare Intl

Mon 10/12

9:33 pm-12:18 pm

1 stop13h 45m

$239

BuffaloChicago

BUF Buffalo - ORD Chicago O'Hare Intl

BUFORD

Buffalo

Wed 9/2

11:36 am-8:08 pm

1 stop9h 32m

Chicago O'Hare Intl

Tue 9/8

7:05 am-12:55 pm

1 stop28h 50m

$239

BuffaloChicago

BUF Buffalo - ORD Chicago O'Hare Intl

BUFORD

Buffalo

Sat 9/5

10:11 am-11:17 am

Nonstop2h 06m

Chicago O'Hare Intl

Sat 9/5

9:10 pm-12:02 am

Nonstop1h 52m

$239
Quickest round-trip

BuffaloChicago

BUF Buffalo - ORD Chicago O'Hare Intl

BUFORD

Buffalo

Sat 9/5

5:02 am-5:56 am

Nonstop1h 54m

Chicago O'Hare Intl

Sun 9/6

2:19 pm-5:04 pm

Nonstop1h 45m

$239

BuffaloChicago

BUF Buffalo - ORD Chicago O'Hare Intl

BUFORD

Buffalo

Fri 9/4

11:36 am-7:53 am

1 stop21h 17m

Chicago O'Hare Intl

Fri 9/11

7:28 pm-12:50 pm

1 stop16h 22m

$239

BuffaloChicago

BUF Buffalo - ORD Chicago O'Hare Intl

BUFORD

Buffalo

Sat 9/5

10:11 am-11:17 am

Nonstop2h 06m

Chicago O'Hare Intl

Sun 9/6

2:19 pm-5:04 pm

Nonstop1h 45m

$239

BuffaloChicago

BUF Buffalo - ORD Chicago O'Hare Intl

BUFORD

Buffalo

Sat 11/7

6:00 am-1:13 pm

1 stop8h 13m

Chicago O'Hare Intl

Sat 11/7

5:29 pm-10:38 pm

1 stop4h 09m

$247

BuffaloChicago

BUF Buffalo - ORD Chicago O'Hare Intl

BUFORD

Buffalo

Fri 9/11

1:40 pm-6:23 pm

1 stop5h 43m

Chicago O'Hare Intl

Sun 9/13

3:00 pm-10:56 pm

1 stop6h 56m

$251

BuffaloChicago

BUF Buffalo - ORD Chicago O'Hare Intl

BUFORD

Buffalo

Fri 9/18

6:37 am-7:37 am

Nonstop2h 00m

Chicago O'Hare Intl

Sat 9/19

2:07 pm-4:54 pm

Nonstop1h 47m

$260

BuffaloChicago

BUF Buffalo - ORD Chicago O'Hare Intl

BUFORD

Buffalo

Fri 9/4

6:55 am-7:55 am

Nonstop2h 00m

Chicago O'Hare Intl

Mon 9/7

6:15 pm-9:07 pm

Nonstop1h 52m

$260

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?

Prices are currently low for flights on this route.

Typical prices usually range from $309 to $537.
The lowest price recently found on this route was $239.

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

The month of September is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Buffalo averaging around $307.

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 Saturday when prices can be found for as low as $427. 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 $578.

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 afternoon is the least expensive time of day to depart. momondo users have found prices as low as $458 when looking at flights departing in the afternoon. Try not to purchase tickets at noon because they tend to be around $606. 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 $339 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 $223 on momondo.

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

There are 4 cabin classes available to choose from on Buffalo to Chicago O'Hare Intl Airport 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 Buffalo to Chicago O'Hare Intl Airport flights?

You could potentially save up to 11% 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 August 2026, prices for Buffalo to Chicago O'Hare Intl Airport flights are approximately 27% cheaper 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

$192

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 $192. The best round-trip flight deal from Buffalo to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $371.
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
2,701 reviews
Search Frontier flights
American AirlinesPriceFrom $145Free CancellationRating
7.1
11,909 reviews
Search American Airlines flights
United AirlinesPriceFrom $232Free CancellationRating
7.4
10,111 reviews
Search United Airlines flights

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

    Across 15 United Airlines flights from Buffalo to Chicago O'Hare Intl Airport this week, the average price was $356, with the best United Airlines deals starting from $232 round-trip. 10,111 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 $346. American Airlines operates 18 flights to Chicago O'Hare Intl Airport from Buffalo in an average week. Users have rated it 7.1/10 across 11,909 reviews.

Traveling to a place near Chicago?

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

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.

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