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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 3/3. 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

Enter your travel dates to find the best prices.
Frontier Logo
1:48 pm - 10:51 am
BUF
-
ORD
22h 03m
1 stop
Frontier Logo
7:18 pm - 12:05 pm
ORD
-
BUF
15h 47m
1 stop
$156Frontier
Mon, Mar 2 - Wed, Mar 11
Frontier Logo
11:17 am - 11:15 pm
BUF
-
ORD
12h 58m
1 stop
Frontier Logo
5:05 am - 12:54 pm
ORD
-
BUF
6h 49m
1 stop
$160Frontier
Mon, Feb 23 - Thu, Feb 26
Frontier Logo
11:17 am - 11:15 pm
BUF
-
ORD
12h 58m
1 stop
Frontier Logo
5:05 am - 12:54 pm
ORD
-
BUF
6h 49m
1 stop
$162Frontier
Mon, Feb 23 - Thu, Feb 26
Frontier Logo
1:39 pm - 10:39 pm
BUF
-
ORD
10h 00m
1 stop
Frontier Logo
7:18 pm - 12:05 pm
ORD
-
BUF
15h 47m
1 stop
$169Frontier
Thu, Mar 5 - Wed, Mar 11
JetBlue Logo
6:00 am - 11:49 am
BUF
-
ORD
6h 49m
1 stop
JetBlue Logo
12:59 pm - 6:46 pm
ORD
-
BUF
4h 47m
1 stop
$170JetBlue
Tue, Mar 3 - Wed, Mar 4
Frontier Logo
1:48 pm - 10:39 pm
BUF
-
ORD
9h 51m
1 stop
Frontier Logo
5:05 am - 12:05 pm
ORD
-
BUF
6h 00m
1 stop
$173Frontier
Mon, Mar 2 - Mon, Mar 9
Frontier Logo
12:00 pm - 10:39 pm
BUF
-
ORD
11h 39m
1 stop
Frontier Logo
7:18 pm - 12:05 pm
ORD
-
BUF
15h 47m
1 stop
$174Frontier
Sat, Feb 28 - Wed, Mar 11
Frontier Logo
1:48 pm - 10:51 am
BUF
-
ORD
22h 03m
1 stop
Frontier Logo
5:01 am - 12:05 pm
ORD
-
BUF
6h 04m
1 stop
$175Frontier
Mon, Mar 2 - Thu, Mar 12
Multiple Airlines Logo
1:48 pm - 10:39 pm
BUF
-
ORD
9h 51m
1 stop
Multiple Airlines Logo
12:41 pm - 6:35 pm
ORD
-
BUF
4h 54m
1 stop
$176Multiple Airlines
Mon, Mar 2 - Tue, Mar 3
JetBlue Logo
6:00 am - 11:49 am
BUF
-
ORD
6h 49m
1 stop
JetBlue Logo
12:59 pm - 6:46 pm
ORD
-
BUF
4h 47m
1 stop
$180JetBlue
Tue, Mar 3 - Wed, Mar 4

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
Mar 2
BUF1:48 pmBuffalo
22h 03m
1 stop
ORD10:51 amChicago O'Hare Intl
Mar 11
ORD7:18 pmChicago O'Hare Intl
15h 47m
1 stop
BUF12:05 pmBuffalo
$156
Frontier
Feb 26
BUF1:39 pmBuffalo
10h 00m
1 stop
ORD10:39 pmChicago O'Hare Intl
Feb 27
ORD5:05 amChicago O'Hare Intl
6h 39m
1 stop
BUF12:44 pmBuffalo
$160
Frontier
Feb 23
BUF11:17 amBuffalo
12h 58m
1 stop
ORD11:15 pmChicago O'Hare Intl
Feb 26
ORD5:05 amChicago O'Hare Intl
6h 49m
1 stop
BUF12:54 pmBuffalo
$162

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
Mar 3
BUF6:00 amBuffalo
6h 49m
1 stop
ORD11:49 amChicago O'Hare Intl
Mar 4
ORD12:59 pmChicago O'Hare Intl
4h 47m
1 stop
BUF6:46 pmBuffalo
$170
JetBlue
Mar 3
BUF6:00 amBuffalo
6h 49m
1 stop
ORD11:49 amChicago O'Hare Intl
Mar 4
ORD12:59 pmChicago O'Hare Intl
4h 47m
1 stop
BUF6:46 pmBuffalo
$180
JetBlue
Mar 3
BUF6:00 amBuffalo
6h 49m
1 stop
ORD11:49 amChicago O'Hare Intl
Mar 12
ORD11:00 amChicago O'Hare Intl
7h 03m
1 stop
BUF7:03 pmBuffalo
$183

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 February 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

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Mon 3/2

1:48 pm-10:51 am

1 stop22h 03m

Chicago O'Hare Intl

Wed 3/11

7:18 pm-12:05 pm

1 stop15h 47m

$156

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Mon 2/23

11:17 am-11:15 pm

1 stop12h 58m

Chicago O'Hare Intl

Thu 2/26

5:05 am-12:54 pm

1 stop6h 49m

$160

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Mon 2/23

11:17 am-11:15 pm

1 stop12h 58m

Chicago O'Hare Intl

Thu 2/26

5:05 am-12:54 pm

1 stop6h 49m

$162

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 3/5

1:39 pm-10:39 pm

1 stop10h 00m

Chicago O'Hare Intl

Wed 3/11

7:18 pm-12:05 pm

1 stop15h 47m

$169

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 3/3

6:00 am-11:49 am

1 stop6h 49m

Chicago O'Hare Intl

Wed 3/4

12:59 pm-6:46 pm

1 stop4h 47m

$170

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Mon 3/2

1:48 pm-10:39 pm

1 stop9h 51m

Chicago O'Hare Intl

Mon 3/9

5:05 am-12:05 pm

1 stop6h 00m

$173

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 2/28

12:00 pm-10:39 pm

1 stop11h 39m

Chicago O'Hare Intl

Wed 3/11

7:18 pm-12:05 pm

1 stop15h 47m

$174

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Mon 3/2

1:48 pm-10:51 am

1 stop22h 03m

Chicago O'Hare Intl

Thu 3/12

5:01 am-12:05 pm

1 stop6h 04m

$175

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Mon 3/2

1:48 pm-10:39 pm

1 stop9h 51m

Chicago O'Hare Intl

Tue 3/3

12:41 pm-6:35 pm

1 stop4h 54m

$176

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 3/3

6:00 am-11:49 am

1 stop6h 49m

Chicago O'Hare Intl

Wed 3/4

12:59 pm-6:46 pm

1 stop4h 47m

$180

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 $272.

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 Thursday when prices can be found for as low as $433. 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 $545.

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 evening is the least expensive time of day to depart. momondo users have found prices as low as $392 when looking at flights departing in the evening. Try not to purchase tickets at noon because they tend to be around $646. 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 $329 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 $226 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 February 2026, prices for Buffalo to Chicago O'Hare Intl Airport flights are approximately 72% 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

$190

Fastest flight time

1h 57m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Buffalo in the past 72 hours is $190. The best round-trip flight deal from Buffalo to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $344.
The fastest flight from Buffalo to Chicago O'Hare Intl Airport takes 1h 57m
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 57m.

  • 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
5.7
3,052 reviews
Search Frontier flights
United AirlinesPriceFrom $145Free CancellationRating
7.4
9,285 reviews
Search United Airlines flights
American AirlinesPriceFrom $157Free CancellationRating
7.2
11,276 reviews
Search American 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 $327, with the best United Airlines deals starting from $145 round-trip. 9,285 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 $157 round-trip, depending on your selected dates, with average American Airlines deals seen on momondo around $320. American Airlines operates 3 flights to Chicago O'Hare Intl Airport from Buffalo in an average week. Users have rated it 7.2/10 across 11,276 reviews.

Traveling to a place near Chicago?

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

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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