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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 11/9. 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
8:49 pm - 6:14 pmORD-BUF
20h 25m1 stop
Frontier Logo
4:58 pm - 11:59 pmBUF-ORD
8h 01m1 stop
$163Frontier
Find Deal
Fri, Sep 12 - Mon, Sep 15
Frontier Logo
10:12 am - 11:44 amMDW-BUF
24h 32m1 stop
Frontier Logo
2:42 pm - 10:03 pmBUF-MDW
8h 21m1 stop
$164Frontier
Find Deal
Thu, Nov 13 - Sun, Nov 16
JetBlue Logo
1:35 pm - 10:07 pmORD-BUF
7h 32m1 stop
JetBlue Logo
6:00 am - 12:10 pmBUF-ORD
7h 10m1 stop
$203JetBlue
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Tue, Sep 23 - Tue, Sep 30
JetBlue Logo
6:45 am - 2:59 pmORD-BUF
7h 14m1 stop
JetBlue Logo
6:00 am - 10:35 amBUF-ORD
5h 35m1 stop
$206JetBlue
Find Deal
Tue, Oct 21 - Tue, Oct 28
United Airlines Logo
2:09 pm - 4:53 pmORD-BUF
1h 44mnonstop
United Airlines Logo
1:57 pm - 2:55 pmBUF-ORD
1h 58mnonstop
$237United Airlines
Find Deal
Tue, Sep 30 - Wed, Oct 1
Southwest Logo
1:15 pm - 3:45 pmMDW-BUF
1h 30mnonstop
Southwest Logo
6:50 am - 7:25 amBUF-MDW
1h 35mnonstop
$237Southwest
Find Deal
Tue, Sep 30 - Wed, Oct 1
Southwest Logo
1:25 pm - 3:50 pmMDW-BUF
1h 25mnonstop
Southwest Logo
6:00 am - 6:55 amBUF-MDW
1h 55mnonstop
$243Southwest
Find Deal
Wed, Nov 19 - Mon, Nov 24
United Airlines Logo
7:10 am - 9:53 amORD-BUF
1h 43mnonstop
United Airlines Logo
10:50 am - 11:46 amBUF-ORD
1h 56mnonstop
$245United Airlines
Find Deal
Mon, Sep 29 - Tue, Sep 30
American Airlines Logo
8:33 am - 11:06 amORD-BUF
1h 33mnonstop
American Airlines Logo
7:50 am - 11:30 amBUF-ORD
4h 40m1 stop
$247American Airlines
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Tue, Sep 23 - Tue, Sep 30
American Airlines Logo
7:10 pm - 9:50 pmORD-BUF
1h 40mnonstop
American Airlines Logo
7:30 am - 8:25 amBUF-ORD
1h 55mnonstop
$252American Airlines
Find Deal
Sat, Sep 20 - Mon, Sep 22

Frontier flights from Chicago to Buffalo

Our best Frontier deals on Chicago to Buffalo flight tickets
Frontier
Sep 5
ORD8:49 pmChicago O'Hare Intl
20h 25m
1 stop
BUF6:14 pmBuffalo
Sep 7
BUF4:57 pmBuffalo
17h 40m
1 stop
ORD9:37 amChicago O'Hare Intl
$163
Find similar
Frontier
Nov 13
MDW10:12 amChicago Midway
24h 32m
1 stop
BUF11:44 amBuffalo
Nov 16
BUF2:42 pmBuffalo
8h 21m
1 stop
MDW10:03 pmChicago Midway
$164
Find similar
Frontier
Sep 20
ORD8:00 amChicago O'Hare Intl
9h 14m
1 stop
BUF6:14 pmBuffalo
Sep 22
BUF4:58 pmBuffalo
8h 01m
1 stop
ORD11:59 pmChicago O'Hare Intl
$165
Find similar

Southwest flights from Chicago to Buffalo

Our best Southwest deals on Chicago to Buffalo flight tickets
Southwest
Sep 30
MDW1:15 pmChicago Midway
1h 30m
BUF3:45 pmBuffalo
Oct 1
BUF6:50 amBuffalo
1h 35m
MDW7:25 amChicago Midway
$237
Find similar
Southwest
Nov 19
MDW1:25 pmChicago Midway
1h 25m
BUF3:50 pmBuffalo
Nov 24
BUF6:00 amBuffalo
1h 55m
MDW6:55 amChicago Midway
$243
Find similar
Southwest
Sep 30
MDW9:55 amChicago Midway
1h 35m
BUF12:30 pmBuffalo
Oct 1
BUF10:15 amBuffalo
6h 05m
1 stop
MDW3:20 pmChicago Midway
$247
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 August 28, 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

Fri 9/12

8:49 pm-6:14 pm

1 stop20h 25m

Buffalo

Mon 9/15

4:58 pm-11:59 pm

1 stop8h 01m

$163

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Thu 11/13

10:12 am-11:44 am

1 stop24h 32m

Buffalo

Sun 11/16

2:42 pm-10:03 pm

1 stop8h 21m

$164

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 9/23

1:35 pm-10:07 pm

1 stop7h 32m

Buffalo

Tue 9/30

6:00 am-12:10 pm

1 stop7h 10m

$203

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 10/21

6:45 am-2:59 pm

1 stop7h 14m

Buffalo

Tue 10/28

6:00 am-10:35 am

1 stop5h 35m

$206

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 9/30

2:09 pm-4:53 pm

Nonstop1h 44m

Buffalo

Wed 10/1

1:57 pm-2:55 pm

Nonstop1h 58m

$237

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Tue 9/30

1:15 pm-3:45 pm

Nonstop1h 30m

Buffalo

Wed 10/1

6:50 am-7:25 am

Nonstop1h 35m

$237

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Wed 11/19

1:25 pm-3:50 pm

Nonstop1h 25m

Buffalo

Mon 11/24

6:00 am-6:55 am

Nonstop1h 55m

$243

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Mon 9/29

7:10 am-9:53 am

Nonstop1h 43m

Buffalo

Tue 9/30

10:50 am-11:46 am

Nonstop1h 56m

$245

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 9/23

8:33 am-11:06 am

Nonstop1h 33m

Buffalo

Tue 9/30

7:50 am-11:30 am

1 stop4h 40m

$247

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sat 9/20

7:10 pm-9:50 pm

Nonstop1h 40m

Buffalo

Mon 9/22

7:30 am-8:25 am

Nonstop1h 55m

$252

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 June instead. Flights to Buffalo in June, while not as cheap as those in September, 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 $322. 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 $334. Flying to Buffalo in the evening is an ideal time because this is during off-peak travel hours. In the afternoon is when there is more demand to fly to Buffalo, so prices are often more expensive at around $346 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 $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 $238 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.

How have Chicago to Buffalo flight prices changed over time?

As of August 2025, prices for Chicago to Buffalo flights are approximately 1% 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

$154

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 $154. The best round-trip flight deal from Chicago to Buffalo found on momondo in the last 72 hours is $217.
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
3,204 reviews
Search Frontier flights
American AirlinesPriceFrom $177Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $198Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights
SouthwestPriceFrom $260Free 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 $260. Generally, Southwest has 15 flights on this route every week with an average price of $367. 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 $378. United Airlines operates 21 flights to Buffalo from Chicago in an average week. Users have rated it 7.4/10 across 8,944 reviews.

Traveling to a place near Buffalo?

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

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

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