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Cheap flights from Chicago to Buffalo from $72

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 10/19. 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

Frontier Logo
6:00 am - 4:02 pmORD-BUF
9h 02m1 stop
Frontier Logo
12:17 pm - 11:39 pmBUF-ORD
12h 22m1 stop
$175Frontier
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Sun, Sep 28 - Thu, Oct 2
Frontier Logo
10:51 am - 6:14 pmMDW-BUF
6h 23m1 stop
Frontier Logo
7:41 pm - 7:23 amBUF-MDW
12h 42m1 stop
$176Frontier
Find Deal
Sat, Sep 27 - Sun, Sep 28
JetBlue Logo
10:08 am - 5:03 pmORD-BUF
5h 55m1 stop
JetBlue Logo
12:30 pm - 5:55 pmBUF-ORD
6h 25m1 stop
$195JetBlue
Find Deal
Sat, Oct 25 - Tue, Oct 28
JetBlue Logo
10:08 am - 9:00 pmORD-BUF
9h 52m1 stop
JetBlue Logo
6:00 am - 12:22 pmBUF-ORD
7h 22m1 stop
$199JetBlue
Find Deal
Wed, Oct 15 - Wed, Oct 22
Multiple Airlines Logo
5:00 am - 5:04 pmORD-BUF
11h 04m1 stop
Multiple Airlines Logo
9:53 pm - 4:23 pmBUF-ORD
19h 30m1 stop
$226Multiple Airlines
Find Deal
Sun, Nov 2 - Mon, Nov 3
Multiple Airlines Logo
6:05 am - 4:11 pmORD-BUF
9h 06m1 stop
Multiple Airlines Logo
9:45 am - 6:44 pmBUF-ORD
9h 59m1 stop
$259Multiple Airlines
Find Deal
Mon, Dec 8 - Sat, Dec 13
American Airlines Logo
8:14 am - 5:47 pmORD-BUF
8h 33m1 stop
American Airlines Logo
6:07 am - 1:52 pmBUF-ORD
8h 45m1 stop
$263American Airlines
Find Deal
Tue, Oct 7 - Wed, Oct 8
American Airlines Logo
8:14 am - 5:47 pmORD-BUF
8h 33m1 stop
American Airlines Logo
6:14 am - 7:13 amBUF-ORD
1h 59mnonstop
$266American Airlines
Find Deal
Tue, Oct 21 - Wed, Oct 22
Southwest Logo
12:50 pm - 3:15 pmMDW-BUF
1h 25mnonstop
Southwest Logo
6:25 pm - 7:05 pmBUF-MDW
1h 40mnonstop
$269Southwest
Find Deal
Sat, Oct 25 - Wed, Oct 29
Southwest Logo
12:50 pm - 3:15 pmMDW-BUF
1h 25mnonstop
Southwest Logo
1:35 pm - 8:05 pmBUF-MDW
7h 30m1 stop
$279Southwest
Find Deal
Sat, Oct 25 - Wed, Oct 29

Frontier flights from Chicago to Buffalo

Our best Frontier deals on Chicago to Buffalo flight tickets
Frontier
Sep 28
ORD6:00 amChicago O'Hare Intl
9h 02m
1 stop
BUF4:02 pmBuffalo
Oct 2
BUF12:17 pmBuffalo
12h 22m
1 stop
ORD11:39 pmChicago O'Hare Intl
$175
Find similar
Frontier
Sep 27
MDW10:51 amChicago Midway
6h 23m
1 stop
BUF6:14 pmBuffalo
Sep 28
BUF7:41 pmBuffalo
12h 42m
1 stop
MDW7:23 amChicago Midway
$176
Find similar
Frontier
Oct 5
ORD11:36 amChicago O'Hare Intl
6h 10m
1 stop
BUF6:46 pmBuffalo
Oct 9
BUF12:15 pmBuffalo
12h 24m
1 stop
ORD11:39 pmChicago O'Hare Intl
$187
Find similar

JetBlue flights from Chicago to Buffalo

Our best JetBlue deals on Chicago to Buffalo flight tickets
JetBlue
Oct 25
ORD10:08 amChicago O'Hare Intl
5h 55m
1 stop
BUF5:03 pmBuffalo
Oct 28
BUF12:30 pmBuffalo
6h 25m
1 stop
ORD5:55 pmChicago O'Hare Intl
$195
Find similar
JetBlue
Oct 15
ORD10:08 amChicago O'Hare Intl
9h 52m
1 stop
BUF9:00 pmBuffalo
Oct 22
BUF6:00 amBuffalo
7h 22m
1 stop
ORD12:22 pmChicago O'Hare Intl
$199
Find similar
JetBlue
Oct 21
ORD6:45 amChicago O'Hare Intl
7h 14m
1 stop
BUF2:59 pmBuffalo
Oct 22
BUF6:00 amBuffalo
7h 22m
1 stop
ORD12:22 pmChicago O'Hare Intl
$203
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 September 16, 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

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sun 9/28

6:00 am-4:02 pm

1 stop9h 02m

Buffalo

Thu 10/2

12:17 pm-11:39 pm

1 stop12h 22m

$175

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Sat 9/27

10:51 am-6:14 pm

1 stop6h 23m

Buffalo

Sun 9/28

7:41 pm-7:23 am

1 stop12h 42m

$176

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sat 10/25

10:08 am-5:03 pm

1 stop5h 55m

Buffalo

Tue 10/28

12:30 pm-5:55 pm

1 stop6h 25m

$195

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 10/15

10:08 am-9:00 pm

1 stop9h 52m

Buffalo

Wed 10/22

6:00 am-12:22 pm

1 stop7h 22m

$199

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sun 11/2

5:00 am-5:04 pm

1 stop11h 04m

Buffalo

Mon 11/3

9:53 pm-4:23 pm

1 stop19h 30m

$226

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Mon 12/8

6:05 am-4:11 pm

1 stop9h 06m

Buffalo

Sat 12/13

9:45 am-6:44 pm

1 stop9h 59m

$259

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 10/7

8:14 am-5:47 pm

1 stop8h 33m

Buffalo

Wed 10/8

6:07 am-1:52 pm

1 stop8h 45m

$263

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 10/21

8:14 am-5:47 pm

1 stop8h 33m

Buffalo

Wed 10/22

6:14 am-7:13 am

Nonstop1h 59m

$266

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Sat 10/25

12:50 pm-3:15 pm

Nonstop1h 25m

Buffalo

Wed 10/29

6:25 pm-7:05 pm

Nonstop1h 40m

$269

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Sat 10/25

12:50 pm-3:15 pm

Nonstop1h 25m

Buffalo

Wed 10/29

1:35 pm-8:05 pm

1 stop7h 30m

$279

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 cheapest month to fly to Buffalo?

If you aren’t able to travel during the month of August, then book flights to Buffalo from Chicago during June instead. Flights to Buffalo in June, while not as cheap as those in August, still average around $301.

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 $308. 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 $325. 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 $348 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 $328 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 $249 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 September 2025, prices for Chicago to Buffalo flights are approximately 20% 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

$188

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 $188. The best round-trip flight deal from Chicago to Buffalo found on momondo in the last 72 hours is $253.
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 $128Free CancellationRating
5.8
3,174 reviews
Search Frontier flights
American AirlinesPriceFrom $177Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $198Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
SouthwestPriceFrom $278Free CancellationRating
8.0
4,242 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 15 flights on this route every week with an average price of $405. 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 $198 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $376. United Airlines operates 28 flights to Buffalo from Chicago in an average week. Users have rated it 7.4/10 across 8,924 reviews.

Traveling to a place near Buffalo?

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