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Cheap flights from Chicago to Buffalo 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 Chicago to Buffalo departing on 1/15. 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
5:30 pm - 2:43 pmMDW-BUF
20h 13m1 stop
Frontier Logo
10:21 am - 9:17 amBUF-MDW
23h 56m1 stop
$144Frontier
Find Deal
Thu, Nov 27 - Mon, Dec 1
Frontier Logo
3:52 pm - 2:15 pmMDW-BUF
21h 23m1 stop
Frontier Logo
5:40 pm - 1:21 pmBUF-MDW
20h 41m1 stop
$147Frontier
Find Deal
Fri, Dec 12 - Fri, Dec 19
Frontier Logo
10:00 am - 10:57 amORD-BUF
23h 57m1 stop
Frontier Logo
4:55 pm - 11:05 amBUF-ORD
19h 10m1 stop
$152Frontier
Find Deal
Thu, Nov 20 - Thu, Dec 4
Frontier Logo
6:35 pm - 9:29 amORD-BUF
13h 54m1 stop
Frontier Logo
9:53 am - 12:08 amBUF-ORD
15h 15m1 stop
$156Frontier
Find Deal
Fri, Nov 21 - Sun, Nov 23
Frontier Logo
3:52 pm - 2:15 pmMDW-BUF
21h 23m1 stop
Frontier Logo
12:05 pm - 9:52 amBUF-MDW
22h 47m1 stop
$162Frontier
Find Deal
Fri, Dec 5 - Sun, Dec 7
Frontier Logo
3:52 pm - 2:15 pmMDW-BUF
21h 23m1 stop
Frontier Logo
3:18 pm - 8:46 amBUF-MDW
18h 28m2 stops
$164Frontier
Find Deal
Fri, Dec 5 - Mon, Dec 8
Frontier Logo
3:52 pm - 2:15 pmMDW-BUF
21h 23m1 stop
Frontier Logo
12:05 pm - 9:52 amBUF-MDW
22h 47m1 stop
$171Frontier
Find Deal
Fri, Dec 5 - Sun, Dec 7
Frontier Logo
8:42 pm - 2:15 pmMDW-BUF
16h 33m2 stops
Frontier Logo
5:40 pm - 1:21 pmBUF-MDW
20h 41m1 stop
$176Frontier
Find Deal
Fri, Dec 12 - Fri, Dec 19
Frontier Logo
6:35 pm - 9:29 amORD-BUF
13h 54m1 stop
Frontier Logo
5:05 pm - 6:46 pmBUF-ORD
26h 41m2 stops
$176Frontier
Find Deal
Thu, Nov 27 - Mon, Dec 1
Multiple Airlines Logo
6:35 pm - 8:58 amORD-BUF
13h 23m1 stop
Multiple Airlines Logo
1:59 pm - 7:43 amBUF-ORD
18h 44m2 stops
$205Multiple Airlines
Find Deal
Sat, Nov 22 - Sun, Nov 23

Frontier flights from Chicago to Buffalo

Our best Frontier deals on Chicago to Buffalo flight tickets
Frontier
Nov 27
MDW5:30 pmChicago Midway
20h 13m
1 stop
BUF2:43 pmBuffalo
Dec 1
BUF10:21 amBuffalo
23h 56m
1 stop
MDW9:17 amChicago Midway
$144
Find similar
Frontier
Dec 12
MDW3:52 pmChicago Midway
21h 23m
1 stop
BUF2:15 pmBuffalo
Dec 19
BUF5:40 pmBuffalo
20h 41m
1 stop
MDW1:21 pmChicago Midway
$147
Find similar
Frontier
Nov 20
ORD10:00 amChicago O'Hare Intl
23h 57m
1 stop
BUF10:57 amBuffalo
Dec 4
BUF4:55 pmBuffalo
19h 10m
1 stop
ORD11:05 amChicago O'Hare Intl
$152
Find similar

JetBlue flights from Chicago to Buffalo

Our best JetBlue deals on Chicago to Buffalo flight tickets
JetBlue
Dec 6
ORD11:25 amChicago O'Hare Intl
8h 19m
1 stop
BUF8:44 pmBuffalo
Dec 7
BUF6:05 amBuffalo
5h 30m
1 stop
ORD10:35 amChicago O'Hare Intl
$209
Find similar
JetBlue
Dec 17
ORD7:00 amChicago O'Hare Intl
7h 59m
1 stop
BUF3:59 pmBuffalo
Jan 17
BUF10:00 amBuffalo
8h 44m
1 stop
ORD5:44 pmChicago O'Hare Intl
$223
Find similar
JetBlue
Dec 4
ORD7:00 amChicago O'Hare Intl
7h 59m
1 stop
BUF3:59 pmBuffalo
Dec 6
BUF12:18 pmBuffalo
10h 34m
1 stop
ORD9:52 pmChicago O'Hare Intl
$228
Find similar

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 November 13, 2025.
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 11/27

5:30 pm-2:43 pm

1 stop20h 13m

Buffalo

Mon 12/1

10:21 am-9:17 am

1 stop23h 56m

$144

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Fri 12/12

3:52 pm-2:15 pm

1 stop21h 23m

Buffalo

Fri 12/19

5:40 pm-1:21 pm

1 stop20h 41m

$147

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 11/20

10:00 am-10:57 am

1 stop23h 57m

Buffalo

Thu 12/4

4:55 pm-11:05 am

1 stop19h 10m

$152

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Fri 11/21

6:35 pm-9:29 am

1 stop13h 54m

Buffalo

Sun 11/23

9:53 am-12:08 am

1 stop15h 15m

$156

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Fri 12/5

3:52 pm-2:15 pm

1 stop21h 23m

Buffalo

Sun 12/7

12:05 pm-9:52 am

1 stop22h 47m

$162

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Fri 12/5

3:52 pm-2:15 pm

1 stop21h 23m

Buffalo

Mon 12/8

3:18 pm-8:46 am

2 stops18h 28m

$164

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Fri 12/5

3:52 pm-2:15 pm

1 stop21h 23m

Buffalo

Sun 12/7

12:05 pm-9:52 am

1 stop22h 47m

$171

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Fri 12/12

8:42 pm-2:15 pm

2 stops16h 33m

Buffalo

Fri 12/19

5:40 pm-1:21 pm

1 stop20h 41m

$176

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 11/27

6:35 pm-9:29 am

1 stop13h 54m

Buffalo

Mon 12/1

5:05 pm-6:46 pm

2 stops26h 41m

$176

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sat 11/22

6:35 pm-8:58 am

1 stop13h 23m

Buffalo

Sun 11/23

1:59 pm-7:43 am

2 stops18h 44m

$205

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 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 typical price of a round-trip flight between Chicago and Buffalo?

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 $291.

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 $279. Flights from Chicago to Buffalo on a Sunday will generally be more expensive and average around $369. 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 $329. 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 $349 per ticket.

What is the cheapest Chicago to Buffalo flight route?

Fly from Chicago Midway 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 $327 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 November 2025, prices for Chicago to Buffalo flights are approximately 211% more expensive 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

$212

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 $212. The best round-trip flight deal from Chicago to Buffalo found on momondo in the last 72 hours is $319.
The fastest flight from Chicago to Buffalo takes 1h 25m
Direct flights go from Chicago to Buffalo every day.
There is 1 airport near Buffalo: 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
5.8
3,114 reviews
Search Frontier flights
American AirlinesPriceFrom $177Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
United AirlinesPriceFrom $197Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
SouthwestPriceFrom $278Free CancellationRating
8.0
4,236 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 12 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 $371. United Airlines operates 28 flights to Buffalo from Chicago in an average week. Users have rated it 7.4/10 across 9,015 reviews.

Traveling to a place near Buffalo?

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