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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 7/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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.
Multiple Airlines Logo
11:50 am - 7:50 pm
BUF
-
ORD
9h 00m
1 stop
Multiple Airlines Logo
5:22 pm - 12:13 am
ORD
-
BUF
5h 51m
1 stop
$255Multiple Airlines
Tue, Jun 23 - Fri, Jun 26
JetBlue Logo
3:32 pm - 9:30 pm
BUF
-
ORD
6h 58m
1 stop
JetBlue Logo
9:35 am - 7:12 pm
ORD
-
BUF
8h 37m
1 stop
$256JetBlue
Mon, Jun 29 - Thu, Jul 2
Multiple Airlines Logo
11:29 am - 7:53 pm
BUF
-
ORD
9h 24m
1 stop
Multiple Airlines Logo
6:00 am - 2:59 pm
ORD
-
BUF
7h 59m
1 stop
$257Multiple Airlines
Thu, Jul 30 - Sat, Aug 1
JetBlue Logo
6:00 am - 10:06 am
BUF
-
ORD
5h 06m
1 stop
JetBlue Logo
6:00 am - 2:59 pm
ORD
-
BUF
7h 59m
1 stop
$258JetBlue
Thu, Jul 9 - Thu, Jul 16
JetBlue Logo
3:30 pm - 10:06 pm
BUF
-
ORD
7h 36m
1 stop
JetBlue Logo
6:20 am - 3:35 pm
ORD
-
BUF
8h 15m
1 stop
$259JetBlue
Fri, Sep 11 - Sun, Sep 13
Frontier Logo
2:48 pm - 7:53 pm
BUF
-
ORD
6h 05m
1 stop
Frontier Logo
5:13 pm - 9:07 pm
ORD
-
BUF
26h 54m
1 stop
$260Frontier
Fri, Jul 10 - Fri, Jul 17
American Airlines Logo
6:00 am - 6:59 am
BUF
-
ORD
1h 59mnonstop
American Airlines Logo
1:57 pm - 9:50 pm
ORD
-
BUF
6h 53m
1 stop
$263American Airlines
Wed, Jul 1 - Wed, Jul 1
JetBlue Logo
4:00 pm - 9:52 pm
BUF
-
ORD
6h 52m
1 stop
JetBlue Logo
7:00 am - 3:04 pm
ORD
-
BUF
7h 04m
1 stop
$264JetBlue
Thu, Dec 3 - Sun, Dec 6
Frontier Logo
2:48 pm - 8:02 am
BUF
-
ORD
18h 14m
1 stop
Frontier Logo
5:30 pm - 1:53 pm
ORD
-
BUF
19h 23m
2 stops
$266Frontier
Fri, Aug 7 - Tue, Aug 11
Multiple Airlines Logo
7:57 pm - 11:10 pm
BUF
-
ORD
28h 13m
1 stop
Multiple Airlines Logo
6:00 am - 2:59 pm
ORD
-
BUF
7h 59m
1 stop
$267Multiple Airlines
Fri, Jul 31 - Tue, Aug 4

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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
Jun 29
BUF3:32 pmBuffalo
6h 58m
1 stop
ORD9:30 pmChicago O'Hare Intl
Jul 2
ORD9:35 amChicago O'Hare Intl
8h 37m
1 stop
BUF7:12 pmBuffalo
$256
JetBlue
Jun 13
BUF6:00 amBuffalo
8h 00m
1 stop
ORD1:00 pmChicago O'Hare Intl
Jun 20
ORD1:55 pmChicago O'Hare Intl
8h 53m
1 stop
BUF11:48 pmBuffalo
$257
JetBlue
Jul 9
BUF6:00 amBuffalo
5h 06m
1 stop
ORD10:06 amChicago O'Hare Intl
Jul 16
ORD6:00 amChicago O'Hare Intl
7h 59m
1 stop
BUF2:59 pmBuffalo
$258

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
Jul 10
BUF2:48 pmBuffalo
6h 05m
1 stop
ORD7:53 pmChicago O'Hare Intl
Jul 17
ORD5:13 pmChicago O'Hare Intl
26h 54m
1 stop
BUF9:07 pmBuffalo
$260
Frontier
Aug 7
BUF2:48 pmBuffalo
18h 14m
1 stop
ORD8:02 amChicago O'Hare Intl
Aug 11
ORD5:30 pmChicago O'Hare Intl
19h 23m
2 stops
BUF1:53 pmBuffalo
$266
Frontier
Jul 26
BUF9:29 pmBuffalo
12h 42m
1 stop
ORD9:11 amChicago O'Hare Intl
Aug 3
ORD7:05 amChicago O'Hare Intl
5h 48m
1 stop
BUF1:53 pmBuffalo
$270

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 June 13, 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

Tue 6/23

11:50 am-7:50 pm

1 stop9h 00m

Chicago O'Hare Intl

Fri 6/26

5:22 pm-12:13 am

1 stop5h 51m

$255

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Mon 6/29

3:32 pm-9:30 pm

1 stop6h 58m

Chicago O'Hare Intl

Thu 7/2

9:35 am-7:12 pm

1 stop8h 37m

$256

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 7/30

11:29 am-7:53 pm

1 stop9h 24m

Chicago O'Hare Intl

Sat 8/1

6:00 am-2:59 pm

1 stop7h 59m

$257

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 7/9

6:00 am-10:06 am

1 stop5h 06m

Chicago O'Hare Intl

Thu 7/16

6:00 am-2:59 pm

1 stop7h 59m

$258

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 9/11

3:30 pm-10:06 pm

1 stop7h 36m

Chicago O'Hare Intl

Sun 9/13

6:20 am-3:35 pm

1 stop8h 15m

$259

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 7/10

2:48 pm-7:53 pm

1 stop6h 05m

Chicago O'Hare Intl

Fri 7/17

5:13 pm-9:07 pm

1 stop26h 54m

$260
Quickest round-trip

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 7/1

6:00 am-6:59 am

Nonstop1h 59m

Chicago O'Hare Intl

Wed 7/1

1:57 pm-9:50 pm

1 stop6h 53m

$263

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 12/3

4:00 pm-9:52 pm

1 stop6h 52m

Chicago O'Hare Intl

Sun 12/6

7:00 am-3:04 pm

1 stop7h 04m

$264

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 8/7

2:48 pm-8:02 am

1 stop18h 14m

Chicago O'Hare Intl

Tue 8/11

5:30 pm-1:53 pm

2 stops19h 23m

$266

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 7/31

7:57 pm-11:10 pm

1 stop28h 13m

Chicago O'Hare Intl

Tue 8/4

6:00 am-2:59 pm

1 stop7h 59m

$267

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 $248.

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 $443. 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 afternoon 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 afternoon. Try not to purchase tickets at noon because they tend to be around $629. 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 $319 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 14% 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 June 2026, prices for Buffalo to Chicago O'Hare Intl Airport flights are approximately 17% 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

$210

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 $210. The best round-trip flight deal from Buffalo to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $398.
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
2,893 reviews
Search Frontier flights
American AirlinesPriceFrom $145Free CancellationRating
7.1
11,647 reviews
Search American Airlines flights
United AirlinesPriceFrom $207Free CancellationRating
7.4
9,813 reviews
Search United Airlines flights

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

    Across 20 United Airlines flights from Buffalo to Chicago O'Hare Intl Airport this week, the average price was $350, with the best United Airlines deals starting from $207 round-trip. 9,813 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 $329. American Airlines operates 26 flights to Chicago O'Hare Intl Airport from Buffalo in an average week. Users have rated it 7.1/10 across 11,647 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
Orland Park
New Buffalo
Oak Brook
Kenosha
Joliet
Aurora
Racine
Hammond
Janesville
Elgin
Evanston
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.

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