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

Southwest, United Airlines, and American Airlines 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 240 per week as of July 2025. The most frequent departure day is Mon, with 16% 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 55% 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 July 2025, there are 34 flights per day flying from Chicago to Buffalo. The most common time of day flights depart is 7:00PM, with 40% 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 July 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.

$89 Cheap Flights from Chicago to Buffalo in 2025

Q: What is the typical price of a round-trip flight between Chicago and Buffalo?

Prices are currently low for flights on this route. Typical prices usually range from $249 to $455. The lowest price recently found on this route was $177.

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Find the cheapest flights from Chicago to Buffalo

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

9:35 am - 12:05 pmMDW-BUF

1h 30mnonstop

6:10 am - 6:45 amBUF-MDW

1h 35mnonstop

$177Southwest

Find Deal

Thu, Aug 21 - Mon, Aug 25

7:45 pm - 10:28 pmORD-BUF

1h 43mnonstop

10:55 am - 11:51 amBUF-ORD

1h 56mnonstop

$177United Airlines

Find Deal

Sat, Aug 16 - Tue, Aug 19

2:26 pm - 5:10 pmORD-BUF

1h 44mnonstop

4:36 pm - 5:37 pmBUF-ORD

2h 01mnonstop

$178American Airlines

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Thu, Aug 28 - Thu, Sep 4

8:24 am - 11:04 amORD-BUF

1h 40mnonstop

6:29 am - 7:24 amBUF-ORD

1h 55mnonstop

$179American Airlines

Find Deal

Thu, Aug 14 - Mon, Aug 18

9:00 am - 3:15 pmMDW-BUF

5h 15m1 stop

12:35 pm - 1:10 pmBUF-MDW

1h 35mnonstop

$187Southwest

Find Deal

Tue, Aug 12 - Thu, Aug 14

6:17 pm - 10:59 pmMDW-BUF

3h 42m1 stop

4:43 pm - 9:44 pmBUF-MDW

6h 01m1 stop

$197Delta

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Mon, Aug 18 - Tue, Aug 19

10:35 am - 4:58 pmORD-BUF

5h 23m1 stop

3:45 pm - 10:37 pmBUF-ORD

7h 52m1 stop

$197Delta

Find Deal

Tue, Oct 21 - Wed, Oct 29

6:15 am - 6:14 pmMDW-BUF

10h 59m1 stop

12:23 pm - 9:02 amBUF-MDW

21h 39m1 stop

$219Frontier

Find Deal

Thu, Aug 21 - Mon, Aug 25

6:20 pm - 9:01 pmORD-BUF

1h 41mnonstop

7:00 am - 7:56 amBUF-ORD

1h 56mnonstop

$219United Airlines

Find Deal

Sun, Aug 10 - Sun, Aug 17

11:03 am - 6:14 pmMDW-BUF

6h 11m1 stop

12:23 pm - 9:02 amBUF-MDW

21h 39m1 stop

$220Frontier

Find Deal

Thu, Aug 21 - Mon, Aug 25

Southwest flights from Chicago to Buffalo

Our best Southwest deals on Chicago to Buffalo flight tickets

Southwest

Aug 21

MDW9:35 amChicago Midway

1h 30m

BUF12:05 pmBuffalo

Aug 25

BUF6:10 amBuffalo

1h 35m

MDW6:45 amChicago Midway

$177

Find similar

Southwest

Aug 12

MDW9:00 amChicago Midway

5h 15m

1 stop

BUF3:15 pmBuffalo

Aug 14

BUF12:35 pmBuffalo

1h 35m

MDW1:10 pmChicago Midway

$187

Find similar

Southwest

Aug 14

MDW2:05 pmChicago Midway

1h 25m

BUF4:30 pmBuffalo

Aug 18

BUF4:50 pmBuffalo

1h 35m

MDW5:25 pmChicago Midway

$188

Find similar

American Airlines flights from Chicago to Buffalo

Our best American Airlines deals on Chicago to Buffalo flight tickets

American Airlines

Aug 28

ORD2:26 pmChicago O'Hare Intl

1h 44m

BUF5:10 pmBuffalo

Sep 4

BUF4:36 pmBuffalo

2h 01m

ORD5:37 pmChicago O'Hare Intl

$178

Find similar

American Airlines

Aug 14

ORD8:24 amChicago O'Hare Intl

1h 40m

BUF11:04 amBuffalo

Aug 18

BUF6:29 amBuffalo

1h 55m

ORD7:24 amChicago O'Hare Intl

$179

Find similar

American Airlines

Aug 8

ORD7:10 pmChicago O'Hare Intl

1h 42m

BUF9:52 pmBuffalo

Aug 11

BUF6:29 amBuffalo

1h 55m

ORD7:24 amChicago O'Hare Intl

$188

Find similar

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 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 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 Wednesday is the least expensive day to fly to Buffalo. Tickets to fly out on this day can be as low as $327. Flights from Chicago to Buffalo on a Sunday will generally be more expensive and average around $359. 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?

At noon is the cheapest time of day to fly from Chicago to Buffalo when you can find flight prices for as low as $330. Flying to Buffalo at noon is an ideal time because this is during off-peak travel hours. In the evening 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 $334 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 $232 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 July 2025, prices for Chicago to Buffalo flights are approximately 21% 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	$89
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 $89. The best round-trip flight deal from Chicago to Buffalo found on momondo in the last 72 hours is $177.

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 July 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 Canadair (Bombardier) Regional Jet CRJ-550, representing 12.15% of all bookings. The subsequent popular models are Boeing 737-800 at 12.09%, Airbus A319 at 11.66%, and Embraer 175 at 10.87%.
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 United Airlines at 33%, Southwest at 23%, and Frontier at 4%.

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 $121	Free Cancellation	Rating 5.9 3,260 reviews	Search Frontier flights
American Airlines	PriceFrom $156	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $198	Free Cancellation	Rating 7.4 8,856 reviews	Search United Airlines flights
Southwest	PriceFrom $260	Free Cancellation	Rating 8.0 4,243 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 16 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 $380. United Airlines operates 23 flights to Buffalo from Chicago in an average week. Users have rated it 7.4/10 across 8,858 reviews.

Batavia

Williamsville

Amherst

Cheektowaga

Tonawanda

Grand Island

Lockport

West Seneca

Orchard Park

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.

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Cheap flights from Chicago to Buffalo from $89

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 8/23. 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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Find the cheapest flights from Chicago to Buffalo

Cheap round-trip flights

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Southwest flights from Chicago to Buffalo

Our best Southwest deals on Chicago to Buffalo flight tickets

American Airlines flights from Chicago to Buffalo

Our best American Airlines deals on Chicago to Buffalo flight tickets

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 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?

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.

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 July 2025, prices for Chicago to Buffalo flights are approximately 21% cheaper when compared to flights at the same time last year.

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

Southwest, United Airlines, and American Airlines 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 July 2025, there are 34 flights per day flying from Chicago to Buffalo. The most common time of day flights depart is 7:00PM, with 40% 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 240 per week as of July 2025. The most frequent departure day is Mon, with 16% 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