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Cheap flights from Buffalo to Chicago from $55

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 11/20. 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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Cheap round-trip flights

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JetBlue Logo
7:00 am - 1:10 pmBUF-ORD
7h 10m1 stop
JetBlue Logo
2:05 pm - 11:55 pmORD-BUF
8h 50m1 stop
$153JetBlue
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Tue, Jan 20 - Tue, Feb 10
Frontier Logo
1:04 pm - 11:28 pmBUF-ORD
11h 24m1 stop
Frontier Logo
5:01 am - 1:47 pmORD-BUF
7h 46m1 stop
$154Frontier
Find Deal
Thu, Nov 13 - Sun, Nov 16
JetBlue Logo
2:45 pm - 7:45 pmBUF-ORD
6h 00m1 stop
JetBlue Logo
2:05 pm - 11:55 pmORD-BUF
8h 50m1 stop
$155JetBlue
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Thu, Jan 8 - Mon, Jan 12
Frontier Logo
12:35 pm - 5:27 pmBUF-ORD
5h 52m1 stop
Frontier Logo
2:36 pm - 2:15 pmORD-BUF
22h 39m1 stop
$169Frontier
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Thu, Dec 11 - Sun, Dec 14
Frontier Logo
12:29 pm - 11:28 pmBUF-ORD
11h 59m1 stop
Frontier Logo
5:01 am - 1:47 pmORD-BUF
7h 46m1 stop
$176Frontier
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Fri, Nov 14 - Sun, Nov 16
Multiple Airlines Logo
11:47 am - 10:13 amBUF-ORD
23h 26m1 stop
Multiple Airlines Logo
6:48 am - 4:20 pmORD-BUF
8h 32m1 stop
$194Multiple Airlines
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Sat, Nov 22 - Mon, Nov 24
Multiple Airlines Logo
11:30 am - 10:24 pmBUF-ORD
11h 54m1 stop
Multiple Airlines Logo
4:47 pm - 2:23 pmORD-BUF
20h 36m2 stops
$200Multiple Airlines
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Fri, Dec 5 - Sat, Dec 6
American Airlines Logo
6:00 am - 7:23 amBUF-ORD
2h 23mnonstop
American Airlines Logo
11:51 am - 10:40 pmORD-BUF
9h 49m1 stop
$252American Airlines
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Tue, Jan 20 - Tue, Feb 10
American Airlines Logo
11:26 am - 8:50 pmBUF-ORD
10h 24m1 stop
American Airlines Logo
1:11 pm - 10:57 pmORD-BUF
8h 46m1 stop
$259American Airlines
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Wed, Dec 10 - Mon, Dec 15
United Airlines Logo
7:00 am - 8:05 amBUF-ORD
2h 05mnonstop
United Airlines Logo
10:35 am - 1:12 pmORD-BUF
1h 37mnonstop
$274United Airlines
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Sun, Dec 7 - Wed, Dec 10

JetBlue flights from Buffalo to Chicago O'Hare Intl Airport

Our best JetBlue deals on Buffalo to Chicago O'Hare Intl Airport flight tickets
JetBlue
Jan 20
BUF7:00 amBuffalo
7h 10m
1 stop
ORD1:10 pmChicago O'Hare Intl
Feb 10
ORD2:05 pmChicago O'Hare Intl
8h 50m
1 stop
BUF11:55 pmBuffalo
$153
Find similar
JetBlue
Jan 8
BUF2:45 pmBuffalo
6h 00m
1 stop
ORD7:45 pmChicago O'Hare Intl
Jan 12
ORD2:05 pmChicago O'Hare Intl
8h 50m
1 stop
BUF11:55 pmBuffalo
$155
Find similar
JetBlue
Jan 7
BUF2:45 pmBuffalo
6h 00m
1 stop
ORD7:45 pmChicago O'Hare Intl
Jan 9
ORD10:45 amChicago O'Hare Intl
7h 05m
1 stop
BUF6:50 pmBuffalo
$181
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Frontier flights from Buffalo to Chicago O'Hare Intl Airport

Our best Frontier deals on Buffalo to Chicago O'Hare Intl Airport flight tickets
Frontier
Nov 13
BUF1:04 pmBuffalo
11h 24m
1 stop
ORD11:28 pmChicago O'Hare Intl
Nov 16
ORD5:01 amChicago O'Hare Intl
7h 46m
1 stop
BUF1:47 pmBuffalo
$154
Find similar
Frontier
Dec 11
BUF12:35 pmBuffalo
5h 52m
1 stop
ORD5:27 pmChicago O'Hare Intl
Dec 14
ORD2:36 pmChicago O'Hare Intl
22h 39m
1 stop
BUF2:15 pmBuffalo
$169
Find similar
Frontier
Nov 14
BUF12:29 pmBuffalo
11h 59m
1 stop
ORD11:28 pmChicago O'Hare Intl
Nov 16
ORD5:01 amChicago O'Hare Intl
7h 46m
1 stop
BUF1:47 pmBuffalo
$176
Find similar

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 October 30, 2025.
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

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 1/20

7:00 am-1:10 pm

1 stop7h 10m

Chicago O'Hare Intl

Tue 2/10

2:05 pm-11:55 pm

1 stop8h 50m

$153

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 11/13

1:04 pm-11:28 pm

1 stop11h 24m

Chicago O'Hare Intl

Sun 11/16

5:01 am-1:47 pm

1 stop7h 46m

$154

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 1/8

2:45 pm-7:45 pm

1 stop6h 00m

Chicago O'Hare Intl

Mon 1/12

2:05 pm-11:55 pm

1 stop8h 50m

$155

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 12/11

12:35 pm-5:27 pm

1 stop5h 52m

Chicago O'Hare Intl

Sun 12/14

2:36 pm-2:15 pm

1 stop22h 39m

$169

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 11/14

12:29 pm-11:28 pm

1 stop11h 59m

Chicago O'Hare Intl

Sun 11/16

5:01 am-1:47 pm

1 stop7h 46m

$176

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 11/22

11:47 am-10:13 am

1 stop23h 26m

Chicago O'Hare Intl

Mon 11/24

6:48 am-4:20 pm

1 stop8h 32m

$194

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 12/5

11:30 am-10:24 pm

1 stop11h 54m

Chicago O'Hare Intl

Sat 12/6

4:47 pm-2:23 pm

2 stops20h 36m

$200

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 1/20

6:00 am-7:23 am

Nonstop2h 23m

Chicago O'Hare Intl

Tue 2/10

11:51 am-10:40 pm

1 stop9h 49m

$252

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 12/10

11:26 am-8:50 pm

1 stop10h 24m

Chicago O'Hare Intl

Mon 12/15

1:11 pm-10:57 pm

1 stop8h 46m

$259

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sun 12/7

7:00 am-8:05 am

Nonstop2h 05m

Chicago O'Hare Intl

Wed 12/10

10:35 am-1:12 pm

Nonstop1h 37m

$274

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 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 $285.

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 $432. 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 $558.

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 $457 when looking at flights departing in the morning. Try not to purchase tickets at noon because they tend to be around $596. 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 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 $254 on momondo.

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

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

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

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

As of October 2025, prices for Buffalo to Chicago O'Hare Intl Airport flights are approximately 34% 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

$202

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 $202. The best round-trip flight deal from Buffalo to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $326.
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

  • 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 58m.

  • 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 $58Free CancellationRating
5.8
3,123 reviews
Search Frontier flights
American AirlinesPriceFrom $161Free CancellationRating
7.2
11,030 reviews
Search American Airlines flights
United AirlinesPriceFrom $175Free CancellationRating
7.4
8,998 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 $378, with the best United Airlines deals starting from $175 round-trip. 8,998 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 $161 round-trip, depending on your selected dates, with average American Airlines deals seen on momondo around $327. American Airlines operates 5 flights to Chicago O'Hare Intl Airport from Buffalo in an average week. Users have rated it 7.2/10 across 11,030 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
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Orland Park
Racine
Hammond
Tinley Park
Janesville
Aurora
Elgin
Benton Harbor

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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