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Cheap flights from Chicago to Buffalo 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 Chicago to Buffalo departing on 2/28. 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
0 bags

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Find the cheapest flights from Chicago to Buffalo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:25 am - 12:54 pm
MDW
-
BUF
5h 29m
1 stop
Frontier Logo
12:00 pm - 9:39 pm
BUF
-
MDW
10h 39m
1 stop
$138Frontier
Thu, Feb 26 - Sat, Feb 28
Frontier Logo
5:05 am - 12:54 pm
ORD
-
BUF
6h 49m
1 stop
Frontier Logo
12:00 pm - 10:39 pm
BUF
-
ORD
11h 39m
1 stop
$138Frontier
Thu, Feb 26 - Sat, Feb 28
Frontier Logo
5:05 am - 12:54 pm
ORD
-
BUF
6h 49m
1 stop
Frontier Logo
1:48 pm - 10:39 pm
BUF
-
ORD
9h 51m
1 stop
$148Frontier
Thu, Feb 26 - Mon, Mar 2
Frontier Logo
8:30 am - 11:34 am
ORD
-
BUF
26h 04m
1 stop
Frontier Logo
12:00 pm - 10:39 pm
BUF
-
ORD
11h 39m
1 stop
$150Frontier
Wed, Feb 25 - Sat, Feb 28
Frontier Logo
9:14 am - 7:13 pm
MDW
-
BUF
8h 59m
1 stop
Frontier Logo
1:08 pm - 10:19 pm
BUF
-
MDW
10h 11m
1 stop
$160Frontier
Thu, Apr 23 - Sat, Apr 25
Frontier Logo
11:55 am - 10:49 am
ORD
-
BUF
21h 54m
1 stop
Frontier Logo
12:50 pm - 8:23 am
BUF
-
ORD
20h 33m
1 stop
$160Frontier
Thu, Mar 5 - Mon, Mar 9
Multiple Airlines Logo
7:23 pm - 12:54 pm
ORD
-
BUF
16h 31m
2 stops
Multiple Airlines Logo
12:00 pm - 10:39 pm
BUF
-
ORD
11h 39m
1 stop
$163Multiple Airlines
Wed, Feb 25 - Sat, Feb 28
Frontier Logo
6:25 am - 12:44 pm
MDW
-
BUF
29h 19m
1 stop
Frontier Logo
9:25 pm - 1:08 pm
BUF
-
MDW
16h 43m
1 stop
$163Frontier
Thu, Feb 26 - Sun, Mar 8
Multiple Airlines Logo
5:05 am - 12:53 pm
ORD
-
BUF
6h 48m
1 stop
Multiple Airlines Logo
9:25 pm - 5:46 pm
BUF
-
ORD
21h 21m
1 stop
$167Multiple Airlines
Mon, Mar 2 - Mon, Mar 9
Southwest Logo
1:50 pm - 4:15 pm
MDW
-
BUF
1h 25mnonstop
Southwest Logo
6:35 pm - 7:35 pm
BUF
-
MDW
2h 00mnonstop
$244Southwest
Wed, Feb 25 - Sat, Feb 28

Frontier flights from Chicago to Buffalo

Our best Frontier deals on Chicago to Buffalo flight tickets
Frontier
Feb 26
MDW6:25 amChicago Midway
5h 29m
1 stop
BUF12:54 pmBuffalo
Feb 28
BUF12:00 pmBuffalo
10h 39m
1 stop
MDW9:39 pmChicago Midway
$138
Frontier
Feb 26
ORD5:05 amChicago O'Hare Intl
6h 49m
1 stop
BUF12:54 pmBuffalo
Mar 2
BUF1:48 pmBuffalo
9h 51m
1 stop
ORD10:39 pmChicago O'Hare Intl
$148
Frontier
Feb 25
ORD8:30 amChicago O'Hare Intl
26h 04m
1 stop
BUF11:34 amBuffalo
Feb 28
BUF12:00 pmBuffalo
11h 39m
1 stop
ORD10:39 pmChicago O'Hare Intl
$150

JetBlue flights from Chicago to Buffalo

Our best JetBlue deals on Chicago to Buffalo flight tickets
JetBlue
Feb 25
ORD12:59 pmChicago O'Hare Intl
4h 41m
1 stop
BUF6:40 pmBuffalo
Feb 27
BUF6:00 amBuffalo
6h 54m
1 stop
ORD11:54 amChicago O'Hare Intl
$171
JetBlue
Feb 23
ORD6:04 amChicago O'Hare Intl
6h 57m
1 stop
BUF2:01 pmBuffalo
Feb 26
BUF6:00 amBuffalo
6h 54m
1 stop
ORD11:54 amChicago O'Hare Intl
$184
JetBlue
Mar 4
ORD12:59 pmChicago O'Hare Intl
4h 47m
1 stop
BUF6:46 pmBuffalo
Mar 9
BUF6:00 amBuffalo
6h 48m
1 stop
ORD11:48 amChicago O'Hare Intl
$185

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Buffalo 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 3, 2026.
Use the filters below to find and compare flights from Chicago to Buffalo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Thu 2/26

6:25 am-12:54 pm

1 stop5h 29m

Buffalo

Sat 2/28

12:00 pm-9:39 pm

1 stop10h 39m

$138

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 2/26

5:05 am-12:54 pm

1 stop6h 49m

Buffalo

Sat 2/28

12:00 pm-10:39 pm

1 stop11h 39m

$138

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 2/26

5:05 am-12:54 pm

1 stop6h 49m

Buffalo

Mon 3/2

1:48 pm-10:39 pm

1 stop9h 51m

$148

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 2/25

8:30 am-11:34 am

1 stop26h 04m

Buffalo

Sat 2/28

12:00 pm-10:39 pm

1 stop11h 39m

$150

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Thu 4/23

9:14 am-7:13 pm

1 stop8h 59m

Buffalo

Sat 4/25

1:08 pm-10:19 pm

1 stop10h 11m

$160

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 3/5

11:55 am-10:49 am

1 stop21h 54m

Buffalo

Mon 3/9

12:50 pm-8:23 am

1 stop20h 33m

$160

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 2/25

7:23 pm-12:54 pm

2 stops16h 31m

Buffalo

Sat 2/28

12:00 pm-10:39 pm

1 stop11h 39m

$163

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Thu 2/26

6:25 am-12:44 pm

1 stop29h 19m

Buffalo

Sun 3/8

9:25 pm-1:08 pm

1 stop16h 43m

$163

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Mon 3/2

5:05 am-12:53 pm

1 stop6h 48m

Buffalo

Mon 3/9

9:25 pm-5:46 pm

1 stop21h 21m

$167

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Wed 2/25

1:50 pm-4:15 pm

Nonstop1h 25m

Buffalo

Sat 2/28

6:35 pm-7:35 pm

Nonstop2h 00m

$244

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Buffalo from

How to get the cheapest flight ticket from Chicago to Buffalo

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 Buffalo?

If you aren’t able to travel during the month of September, then book flights to Buffalo from Chicago during August instead. Flights to Buffalo in August, while not as cheap as those in September, still average around $300.

What is the cheapest day to depart on your flight to Buffalo?

Our data shows that Tuesday is the least expensive day to fly to Buffalo. Tickets to fly out on this day can be as low as $269. Flights from Chicago to Buffalo on a Sunday will generally be more expensive and average around $348. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Buffalo?

In the evening is the cheapest time of day to fly from Chicago to Buffalo when you can find flight prices for as low as $309. Flying to Buffalo in the evening is an ideal time because this is during off-peak travel hours. At noon is when there is more demand to fly to Buffalo, so prices are often more expensive at around $347 per ticket.

What is the cheapest Chicago to Buffalo flight route?

Fly from Chicago O'Hare Intl to Buffalo for the best Chicago - Buffalo flight prices

How far in advance should I book a flight to Buffalo?

You are more likely to see cheaper flights to Buffalo from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Buffalo for around $318 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buffalo from Chicago for as low as $265 on momondo.

What cabin class options are available on Chicago to Buffalo flights?

There are 4 cabin classes available to choose from on Chicago to Buffalo 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 Chicago to Buffalo flights?

No. A direct flight is the cheapest option for a flight between Chicago to Buffalo.

How have Chicago to Buffalo flight prices changed over time?

As of February 2026, prices for Chicago to Buffalo flights are approximately 6% cheaper when compared to flights at the same time last year.

When to book flights from Chicago to Buffalo

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Buffalo according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Buffalo (CHI to BUF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Buffalo

Best Price Found

$120

Fastest flight time

1h 25m

Direct flights

Every day

Airports in Buffalo

1 airport
The best one-way flight to Buffalo from Chicago in the past 72 hours is $120. The best round-trip flight deal from Chicago to Buffalo found on momondo in the last 72 hours is $301.
The fastest flight from Chicago to Buffalo takes 1h 25m
Direct flights go from Chicago to Buffalo every day.
There is 1 airport in Buffalo. From Chicago there are direct flights to Buffalo (BUF).
Search flight deals

  • How far is Chicago to Buffalo by plane?

    A flight from Chicago to Buffalo will travel around 451.4 mi. In terms of flight time, this usually takes a little over 1h 25m.

  • When did momondo last update prices for flights from Chicago to Buffalo Airport?

    Prices for flights from Chicago to Buffalo Airport are updated daily.

  • How many operators does momondo search for flights from Chicago to Buffalo Airport?

  • How old do you have to be to fly from Chicago to Buffalo Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Buffalo Airport.

  • What documentation or ID do you need to fly to Buffalo Airport?

    The travel and health documents you'll need for your trip to Buffalo Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Buffalo Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago to Buffalo?

  • What is the most popular airline from Chicago to Buffalo?

Best airlines flying from Chicago to Buffalo

Compare and see reviews for airlines that fly from Chicago to Buffalo with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $132Free CancellationRating
5.7
3,051 reviews
Search Frontier flights
American AirlinesPriceFrom $177Free CancellationRating
7.2
11,218 reviews
Search American Airlines flights
United AirlinesPriceFrom $197Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
SouthwestPriceFrom $278Free CancellationRating
8.0
4,272 reviews
Search Southwest flights

  • Southwest Flights From Chicago to Buffalo

    The lowest priced Southwest flight from Chicago to Buffalo from the last 72 hours was $278. Generally, Southwest has 4 flights on this route every week with an average price of $398. Southwest is rated 8.0/10 by our users.

  • United Airlines Flights From Chicago to Buffalo

    United Airlines is also a popular choice for this route. United Airlines flight deals for Chicago to Buffalo start from as low as $197 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $353. United Airlines operates 16 flights to Buffalo from Chicago in an average week. Users have rated it 7.4/10 across 9,236 reviews.

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Batavia
Cheektowaga
Amherst
Grand Island
Tonawanda
Williamsville
Orchard Park
Lockport
West Seneca
Bowmansville
East Aurora
Eden
Angola

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Buffalo?

Finding the right flight to Buffalo from Chicago 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 Buffalo quick and easy, saving you time and money.

Can I find flights from Chicago to Buffalo with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Buffalo from Chicago with this policy.

How can momondo help me find flights from Chicago to Buffalo?

momondo provides multiple filters to help you find the best flight to Buffalo from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Chicago to Buffalo right now. Can momondo alert me if prices change?

Price alerts on flights to Buffalo from Chicago 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 Buffalo trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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