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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 2/21. 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
11:17 am - 3:52 pm
BUF
-
ORD
29h 35m
1 stop
Frontier Logo
4:42 pm - 12:44 pm
ORD
-
BUF
19h 02m
1 stop
$158Frontier
lun., feb. 23 - jue., feb. 26
Frontier Logo
2:19 pm - 10:51 am
BUF
-
ORD
21h 32m
1 stop
Frontier Logo
4:42 pm - 1:24 pm
ORD
-
BUF
19h 42m
1 stop
$160Frontier
dom., feb. 22 - sáb., feb. 28
JetBlue Logo
6:00 am - 12:04 pm
BUF
-
ORD
7h 04m
1 stop
JetBlue Logo
12:59 pm - 6:46 pm
ORD
-
BUF
4h 47m
1 stop
$171JetBlue
mié., feb. 25 - mié., mar. 4
Frontier Logo
1:39 pm - 10:39 pm
BUF
-
ORD
10h 00m
1 stop
Frontier Logo
5:05 am - 12:54 pm
ORD
-
BUF
6h 49m
1 stop
$173Frontier
jue., feb. 26 - jue., mar. 5
Multiple Airlines Logo
11:17 am - 3:52 pm
BUF
-
ORD
29h 35m
1 stop
Multiple Airlines Logo
6:51 pm - 12:44 pm
ORD
-
BUF
16h 53m
2 stops
$179Multiple Airlines
lun., feb. 23 - jue., feb. 26
JetBlue Logo
9:54 am - 5:24 pm
BUF
-
ORD
8h 30m
1 stop
JetBlue Logo
12:20 pm - 8:53 pm
ORD
-
BUF
7h 33m
1 stop
$184JetBlue
lun., mar. 16 - mié., mar. 18
Frontier Logo
1:48 pm - 10:39 pm
BUF
-
ORD
9h 51m
1 stop
Frontier Logo
5:05 am - 12:54 pm
ORD
-
BUF
6h 49m
1 stop
$185Frontier
lun., feb. 23 - jue., feb. 26
Frontier Logo
1:48 pm - 10:39 pm
BUF
-
ORD
9h 51m
1 stop
Frontier Logo
5:05 am - 12:54 pm
ORD
-
BUF
6h 49m
1 stop
$187Frontier
lun., feb. 23 - jue., feb. 26
Frontier Logo
2:19 pm - 10:51 am
BUF
-
ORD
21h 32m
1 stop
Frontier Logo
4:42 pm - 9:52 am
ORD
-
BUF
16h 10m
2 stops
$193Frontier
dom., feb. 22 - sáb., feb. 28
JetBlue Logo
6:00 am - 11:25 am
BUF
-
ORD
6h 25m
1 stop
JetBlue Logo
12:20 pm - 8:53 pm
ORD
-
BUF
7h 33m
1 stop
$194JetBlue
mar., mar. 17 - mié., mar. 18

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
Feb 18
BUF6:01 pmBuffalo
2h 13m
ORD7:14 pmChicago O'Hare Intl
Feb 25
ORD1:57 pmChicago O'Hare Intl
7h 53m
1 stop
BUF10:50 pmBuffalo
$265
American Airlines
Mar 18
BUF6:19 amBuffalo
7h 18m
1 stop
ORD12:37 pmChicago O'Hare Intl
Mar 25
ORD2:48 pmChicago O'Hare Intl
1h 41m
BUF5:29 pmBuffalo
$267
American Airlines
Mar 3
BUF12:31 pmBuffalo
2h 01m
ORD1:32 pmChicago O'Hare Intl
Mar 4
ORD1:57 pmChicago O'Hare Intl
7h 53m
1 stop
BUF10:50 pmBuffalo
$270

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
Feb 25
BUF6:00 amBuffalo
7h 04m
1 stop
ORD12:04 pmChicago O'Hare Intl
Mar 4
ORD12:59 pmChicago O'Hare Intl
4h 47m
1 stop
BUF6:46 pmBuffalo
$171
JetBlue
Mar 16
BUF9:54 amBuffalo
8h 30m
1 stop
ORD5:24 pmChicago O'Hare Intl
Mar 18
ORD12:20 pmChicago O'Hare Intl
7h 33m
1 stop
BUF8:53 pmBuffalo
$184
JetBlue
Mar 17
BUF6:00 amBuffalo
6h 25m
1 stop
ORD11:25 amChicago O'Hare Intl
Mar 18
ORD12:20 pmChicago O'Hare Intl
7h 33m
1 stop
BUF8:53 pmBuffalo
$194

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 enero 29, 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

lun. 2/23

11:17 am-3:52 pm

1 stop29h 35m

Chicago O'Hare Intl

jue. 2/26

4:42 pm-12:44 pm

1 stop19h 02m

$158

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

dom. 2/22

2:19 pm-10:51 am

1 stop21h 32m

Chicago O'Hare Intl

sáb. 2/28

4:42 pm-1:24 pm

1 stop19h 42m

$160

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

mié. 2/25

6:00 am-12:04 pm

1 stop7h 04m

Chicago O'Hare Intl

mié. 3/4

12:59 pm-6:46 pm

1 stop4h 47m

$171

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

jue. 2/26

1:39 pm-10:39 pm

1 stop10h 00m

Chicago O'Hare Intl

jue. 3/5

5:05 am-12:54 pm

1 stop6h 49m

$173

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

lun. 2/23

11:17 am-3:52 pm

1 stop29h 35m

Chicago O'Hare Intl

jue. 2/26

6:51 pm-12:44 pm

2 stops16h 53m

$179

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

lun. 3/16

9:54 am-5:24 pm

1 stop8h 30m

Chicago O'Hare Intl

mié. 3/18

12:20 pm-8:53 pm

1 stop7h 33m

$184

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

lun. 2/23

1:48 pm-10:39 pm

1 stop9h 51m

Chicago O'Hare Intl

jue. 2/26

5:05 am-12:54 pm

1 stop6h 49m

$185

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

lun. 2/23

1:48 pm-10:39 pm

1 stop9h 51m

Chicago O'Hare Intl

jue. 2/26

5:05 am-12:54 pm

1 stop6h 49m

$187

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

dom. 2/22

2:19 pm-10:51 am

1 stop21h 32m

Chicago O'Hare Intl

sáb. 2/28

4:42 pm-9:52 am

2 stops16h 10m

$193

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

mar. 3/17

6:00 am-11:25 am

1 stop6h 25m

Chicago O'Hare Intl

mié. 3/18

12:20 pm-8:53 pm

1 stop7h 33m

$194

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 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 Friday when prices can be found for as low as $428. 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 $540.

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 $437 when looking at flights departing in the morning. Try not to purchase tickets at noon because they tend to be around $632. 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 $322 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?

You could potentially save up to 15% 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 January 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

$197

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 $197. The best round-trip flight deal from Buffalo to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $334.
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 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
5.7
3,056 reviews
Search Frontier flights
United AirlinesPriceFrom $145Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
American AirlinesPriceFrom $157Free CancellationRating
7.2
11,205 reviews
Search American Airlines flights

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

    Across 11 United Airlines flights from Buffalo to Chicago O'Hare Intl Airport this week, the average price was $339, with the best United Airlines deals starting from $145 round-trip. 9,215 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 $324. American Airlines operates 9 flights to Chicago O'Hare Intl Airport from Buffalo in an average week. Users have rated it 7.2/10 across 11,205 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
Joliet
Oak Brook
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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