What is the cheapest airline that flies from Chicago to Buffalo?

United Airlines and Southwest are the most popular carriers operating from Chicago to Buffalo

How many flights depart from Chicago to Buffalo on average per week?

The number of flights available between Chicago and Buffalo is 129 per week as of December 2025. The most frequent departure day is Tue, with 22% of weekly flights leaving on this day.

What airlines fly to Buffalo?

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Buffalo from Chicago according to our data. American Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Buffalo. Keep in mind that there are 4 different airlines that fly to Buffalo on a routine basis, so you have a few additional options to choose from.

How many flights depart from Chicago to Buffalo on average per day?

As of December 2025, there are 18 flights per day flying from Chicago to Buffalo. The most common time of day flights depart is 8:00PM, with 44% of flights taking off in the evening.

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?

The number of operators available for flights from Chicago to Buffalo Airport is 4 as of December 2025.

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.

$64 Cheap Flights from Chicago to Buffalo in 2025/26

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:10 am - 10:52 amORD-BUF

1h 42mnonstop

7:30 am - 8:53 amBUF-ORD

2h 23mnonstop

$146American Airlines

Find Deal

sáb., ene. 10 - dom., ene. 11

1:50 pm - 4:15 pmMDW-BUF

1h 25mnonstop

6:35 pm - 7:35 pmBUF-MDW

2h 00mnonstop

$157Southwest

Find Deal

mar., feb. 10 - sáb., feb. 21

8:27 pm - 8:13 amORD-BUF

10h 46m1 stop

1:15 pm - 10:39 pmBUF-ORD

10h 24m1 stop

$162Frontier

Find Deal

jue., ene. 8 - lun., ene. 12

8:10 am - 10:52 amORD-BUF

1h 42mnonstop

7:30 am - 8:53 amBUF-ORD

2h 23mnonstop

$163American Airlines

Find Deal

vie., ene. 16 - lun., ene. 19

8:00 am - 1:12 pmORD-BUF

28h 12m2 stops

1:15 pm - 11:35 amBUF-ORD

23h 20m1 stop

$165Frontier

Find Deal

mié., dic. 17 - vie., ene. 9

1:50 pm - 4:15 pmMDW-BUF

1h 25mnonstop

5:05 pm - 11:45 pmBUF-MDW

7h 40m1 stop

$167Southwest

Find Deal

mar., feb. 10 - sáb., feb. 21

6:45 am - 1:14 pmMDW-BUF

5h 29m1 stop

6:00 am - 10:27 amBUF-MDW

5h 27m1 stop

$170Delta

Find Deal

sáb., ene. 10 - dom., ene. 11

5:30 am - 1:14 pmORD-BUF

6h 44m1 stop

6:38 pm - 11:59 pmBUF-ORD

6h 21m1 stop

$170Delta

Find Deal

sáb., ene. 10 - dom., ene. 11

7:45 am - 2:30 pmORD-BUF

5h 45m1 stop

10:00 am - 5:43 pmBUF-ORD

8h 43m1 stop

$171JetBlue

Find Deal

vie., ene. 9 - sáb., ene. 17

10:35 am - 1:24 pmORD-BUF

1h 49mnonstop

5:23 pm - 6:30 pmBUF-ORD

2h 07mnonstop

$188United Airlines

Find Deal

mié., dic. 31 - mié., ene. 7

Southwest flights from Chicago to Buffalo

Our best Southwest deals on Chicago to Buffalo flight tickets

Southwest

Feb 10

MDW1:50 pmChicago Midway

1h 25m

BUF4:15 pmBuffalo

Feb 21

BUF6:35 pmBuffalo

2h 00m

MDW7:35 pmChicago Midway

$157

Find similar

Southwest

Feb 10

MDW1:50 pmChicago Midway

1h 25m

BUF4:15 pmBuffalo

Feb 21

BUF5:05 pmBuffalo

7h 40m

1 stop

MDW11:45 pmChicago Midway

$167

Find similar

Southwest

Feb 10

MDW1:50 pmChicago Midway

1h 25m

BUF4:15 pmBuffalo

Feb 21

BUF12:25 pmBuffalo

8h 15m

2 stops

MDW7:40 pmChicago Midway

$172

Find similar

JetBlue flights from Chicago to Buffalo

Our best JetBlue deals on Chicago to Buffalo flight tickets

JetBlue

Jan 9

ORD7:45 amChicago O'Hare Intl

5h 45m

1 stop

BUF2:30 pmBuffalo

Jan 17

BUF10:00 amBuffalo

8h 43m

1 stop

ORD5:43 pmChicago O'Hare Intl

$171

Find similar

JetBlue

Jan 16

ORD7:45 amChicago O'Hare Intl

5h 45m

1 stop

BUF2:30 pmBuffalo

Jan 23

BUF10:00 amBuffalo

8h 43m

1 stop

ORD5:43 pmChicago O'Hare Intl

$184

Find similar

JetBlue

Dec 17

ORD11:25 amChicago O'Hare Intl

4h 59m

1 stop

BUF5:24 pmBuffalo

Jan 17

BUF10:00 amBuffalo

8h 43m

1 stop

ORD5:43 pmChicago O'Hare Intl

$203

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

sáb. 1/10

8:10 am-10:52 am

Nonstop1h 42m

Buffalo

dom. 1/11

7:30 am-8:53 am

Nonstop2h 23m

$146

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

mar. 2/10

1:50 pm-4:15 pm

Nonstop1h 25m

Buffalo

sáb. 2/21

6:35 pm-7:35 pm

Nonstop2h 00m

$157

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

jue. 1/8

8:27 pm-8:13 am

1 stop10h 46m

Buffalo

lun. 1/12

1:15 pm-10:39 pm

1 stop10h 24m

$162

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

vie. 1/16

8:10 am-10:52 am

Nonstop1h 42m

Buffalo

lun. 1/19

7:30 am-8:53 am

Nonstop2h 23m

$163

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

mié. 12/17

8:00 am-1:12 pm

2 stops28h 12m

Buffalo

vie. 1/9

1:15 pm-11:35 am

1 stop23h 20m

$165

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

mar. 2/10

1:50 pm-4:15 pm

Nonstop1h 25m

Buffalo

sáb. 2/21

5:05 pm-11:45 pm

1 stop7h 40m

$167

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

sáb. 1/10

6:45 am-1:14 pm

1 stop5h 29m

Buffalo

dom. 1/11

6:00 am-10:27 am

1 stop5h 27m

$170

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

sáb. 1/10

5:30 am-1:14 pm

1 stop6h 44m

Buffalo

dom. 1/11

6:38 pm-11:59 pm

1 stop6h 21m

$170

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

vie. 1/9

7:45 am-2:30 pm

1 stop5h 45m

Buffalo

sáb. 1/17

10:00 am-5:43 pm

1 stop8h 43m

$171

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

mié. 12/31

10:35 am-1:24 pm

Nonstop1h 49m

Buffalo

mié. 1/7

5:23 pm-6:30 pm

Nonstop2h 07m

$188

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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

Prices

Airlines

Other information

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 $269. Flights from Chicago to Buffalo on a Thursday will generally be more expensive and average around $352. 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 $318. 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 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 $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.

How have Chicago to Buffalo flight prices changed over time?

As of December 2025, prices for Chicago to Buffalo flights are approximately 35% 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	$199
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 $199. The best round-trip flight deal from Chicago to Buffalo found on momondo in the last 72 hours is $304.

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?
The number of operators available for flights from Chicago to Buffalo Airport is 4 as of December 2025.
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?
momondo data reveals that the most frequently booked plane model on the route from Chicago to Buffalo is Boeing 737-800, representing 19.71% of all bookings. The subsequent popular models are Embraer 175 at 14.47%, Canadair (Bombardier) Regional Jet CRJ-550 at 14.36%, and Embraer 175 (Enhanced Winglets) at 10.06%.
What is the most popular airline from Chicago to Buffalo?
momondo data reveals that the most frequently booked airline on the route from Chicago to Buffalo is American Airlines, representing 40% of all bookings. The subsequent popular airlines are Southwest at 29%, United Airlines at 23%, and Frontier at 8%.

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
Frontier	PriceFrom $132	Free Cancellation	Rating 5.8 3,094 reviews	Search Frontier flights
American Airlines	PriceFrom $177	Free Cancellation	Rating 7.2 11,041 reviews	Search American Airlines flights
United Airlines	PriceFrom $197	Free Cancellation	Rating 7.4 9,064 reviews	Search United Airlines flights
Southwest	PriceFrom $249	Free Cancellation	Rating 8.0 4,253 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 $249. Generally, Southwest has 12 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 $197 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $364. United Airlines operates 15 flights to Buffalo from Chicago in an average week. Users have rated it 7.4/10 across 9,064 reviews.

Batavia

Cheektowaga

Amherst

Tonawanda

Grand Island

Williamsville

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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Cheap flights from Chicago to Buffalo from $64

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 2/14. 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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Big names and deals

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Southwest flights from Chicago to Buffalo

Our best Southwest deals on Chicago to Buffalo flight tickets

JetBlue flights from Chicago to Buffalo

Our best JetBlue deals on Chicago to Buffalo flight tickets

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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 $291.

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

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

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?

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 December 2025, prices for Chicago to Buffalo flights are approximately 35% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Chicago to Buffalo?

United Airlines and Southwest are the most popular carriers operating from Chicago to Buffalo

What airlines fly to Buffalo?

How many flights depart from Chicago to Buffalo on average per day?

As of December 2025, there are 18 flights per day flying from Chicago to Buffalo. The most common time of day flights depart is 8:00PM, with 44% of flights taking off in the evening.

How many flights depart from Chicago to Buffalo on average per week?

The number of flights available between Chicago and Buffalo is 129 per week as of December 2025. The most frequent departure day is Tue, with 22% of weekly flights leaving on this day.

When to book flights from Chicago to Buffalo

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

Fastest flight time

Direct flights

Airports in Buffalo

How far is Chicago to Buffalo by plane?

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

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?

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

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

Southwest Flights From Chicago to Buffalo

United Airlines Flights From Chicago to Buffalo

Traveling to a place near Buffalo?

Why use momondo?

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

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

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

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

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing New York