Which layover airport offers the lowest fares from Buffalo to Chicago?

Flights via Denver (DEN) offer the lowest average round-trip price of $198.

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

Frontier, JetBlue, and American Airlines are the most popular carriers operating from Buffalo to Chicago

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

As of November 2025, 185 flights take off from Buffalo and land in Chicago each week. The most common flight departure day for this route is Thu, with 18% of weekly flights taking off on this day.

What airlines fly to Chicago?

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Chicago from Buffalo according to our data. American Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 4 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

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

The number of flights available between Buffalo and Chicago is 26 per day as of November 2025. The most frequent departure time is 1:00PM, with 50% of daily flights leaving in the afternoon.

Which airport is the most popular layover for flights between Buffalo and Chicago?

Orlando (MCO) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from Buffalo to Chicago?

Denver (DEN) has the shortest average layover time for this route: 2h 28m.

Which layover airport has the shortest travel time from Buffalo to Chicago?

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 8h 02m.

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

Prices for flights from Buffalo Airport to Chicago were last updated today.

How many operators does momondo search for flights from Buffalo Airport to Chicago?

As of November 2025, there are 4 operators available to choose from for flights from Buffalo Airport to Chicago.

How old do you have to be to fly from Buffalo Airport to Chicago?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Buffalo Airport to Chicago.

What documentation or ID do you need to fly to Chicago?

The travel and health documents you'll need for your trip to Chicago 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 Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$55 Cheap Flights from Buffalo to Chicago in 2025/26

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Cheap round-trip flights

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12:35 pm - 10:24 pmBUF-ORD

10h 49m1 stop

2:36 pm - 2:15 pmORD-BUF

22h 39m1 stop

$150Frontier

Find Deal

Thu, Dec 4 - Sun, Dec 7

12:35 pm - 10:24 pmBUF-ORD

10h 49m1 stop

2:36 pm - 2:15 pmORD-BUF

22h 39m1 stop

$155Frontier

Find Deal

Thu, Dec 4 - Sun, Dec 7

2:45 pm - 7:45 pmBUF-ORD

6h 00m1 stop

2:05 pm - 11:55 pmORD-BUF

8h 50m1 stop

$157JetBlue

Find Deal

Thu, Jan 22 - Sat, Jan 24

5:00 pm - 9:52 pmBUF-ORD

5h 52m1 stop

7:00 am - 3:59 pmORD-BUF

7h 59m1 stop

$173JetBlue

Find Deal

Wed, Dec 3 - Wed, Dec 10

5:40 pm - 6:46 pmBUF-ORD

2h 06mnonstop

10:35 am - 1:12 pmORD-BUF

1h 37mnonstop

$223United Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

6:25 pm - 7:10 pmBUF-MDW

1h 45mnonstop

1:25 pm - 3:50 pmMDW-BUF

1h 25mnonstop

$223Southwest

Find Deal

Fri, Dec 5 - Mon, Dec 8

4:46 pm - 5:59 pmBUF-ORD

2h 13mnonstop

8:16 am - 11:00 amORD-BUF

1h 44mnonstop

$224American Airlines

Find Deal

Thu, Dec 4 - Sun, Dec 7

7:27 am - 8:36 amBUF-ORD

2h 09mnonstop

6:22 am - 3:06 pmORD-BUF

7h 44m1 stop

$228American Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

6:25 pm - 7:10 pmBUF-MDW

1h 45mnonstop

9:35 am - 4:20 pmMDW-BUF

5h 45m1 stop

$233Southwest

Find Deal

Fri, Dec 5 - Sun, Dec 7

8:30 am - 9:37 amBUF-ORD

2h 07mnonstop

5:50 pm - 8:29 pmORD-BUF

1h 39mnonstop

$271United Airlines

Find Deal

Thu, Jan 22 - Sat, Jan 24

JetBlue flights from Buffalo to Chicago

Our best JetBlue deals on Buffalo to Chicago flight tickets

JetBlue

Jan 22

BUF2:45 pmBuffalo

6h 00m

1 stop

ORD7:45 pmChicago O'Hare Intl

Jan 24

ORD2:05 pmChicago O'Hare Intl

8h 50m

1 stop

BUF11:55 pmBuffalo

$157

Find similar

JetBlue

Dec 3

BUF5:00 pmBuffalo

5h 52m

1 stop

ORD9:52 pmChicago O'Hare Intl

Dec 10

ORD7:00 amChicago O'Hare Intl

7h 59m

1 stop

BUF3:59 pmBuffalo

$173

Find similar

JetBlue

Dec 4

BUF11:48 amBuffalo

8h 55m

1 stop

ORD7:43 pmChicago O'Hare Intl

Dec 9

ORD7:00 amChicago O'Hare Intl

7h 59m

1 stop

BUF3:59 pmBuffalo

$181

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American Airlines flights from Buffalo to Chicago

Our best American Airlines deals on Buffalo to Chicago flight tickets

American Airlines

Dec 4

BUF4:46 pmBuffalo

2h 13m

ORD5:59 pmChicago O'Hare Intl

Dec 7

ORD8:16 amChicago O'Hare Intl

1h 44m

BUF11:00 amBuffalo

$224

Find similar

American Airlines

Dec 3

BUF7:27 amBuffalo

2h 09m

ORD8:36 amChicago O'Hare Intl

Dec 10

ORD6:22 amChicago O'Hare Intl

7h 44m

1 stop

BUF3:06 pmBuffalo

$228

Find similar

American Airlines

Dec 3

BUF11:26 amBuffalo

10h 24m

1 stop

ORD8:50 pmChicago O'Hare Intl

Dec 10

ORD6:22 amChicago O'Hare Intl

7h 44m

1 stop

BUF3:06 pmBuffalo

$233

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 12/4

12:35 pm-10:24 pm

1 stop10h 49m

Chicago O'Hare Intl

Sun 12/7

2:36 pm-2:15 pm

1 stop22h 39m

$150

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 12/4

12:35 pm-10:24 pm

1 stop10h 49m

Chicago O'Hare Intl

Sun 12/7

2:36 pm-2:15 pm

1 stop22h 39m

$155

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 1/22

2:45 pm-7:45 pm

1 stop6h 00m

Chicago O'Hare Intl

Sat 1/24

2:05 pm-11:55 pm

1 stop8h 50m

$157

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 12/3

5:00 pm-9:52 pm

1 stop5h 52m

Chicago O'Hare Intl

Wed 12/10

7:00 am-3:59 pm

1 stop7h 59m

$173

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 12/3

5:40 pm-6:46 pm

Nonstop2h 06m

Chicago O'Hare Intl

Wed 12/10

10:35 am-1:12 pm

Nonstop1h 37m

$223

BuffaloChicago

BUF - MDW

BUFMDW

Buffalo

Fri 12/5

6:25 pm-7:10 pm

Nonstop1h 45m

Chicago Midway

Mon 12/8

1:25 pm-3:50 pm

Nonstop1h 25m

$223

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 12/4

4:46 pm-5:59 pm

Nonstop2h 13m

Chicago O'Hare Intl

Sun 12/7

8:16 am-11:00 am

Nonstop1h 44m

$224

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 12/3

7:27 am-8:36 am

Nonstop2h 09m

Chicago O'Hare Intl

Wed 12/10

6:22 am-3:06 pm

1 stop7h 44m

$228

BuffaloChicago

BUF - MDW

BUFMDW

Buffalo

Fri 12/5

6:25 pm-7:10 pm

Nonstop1h 45m

Chicago Midway

Sun 12/7

9:35 am-4:20 pm

1 stop5h 45m

$233

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 1/22

8:30 am-9:37 am

Nonstop2h 07m

Chicago O'Hare Intl

Sat 1/24

5:50 pm-8:29 pm

Nonstop1h 39m

$271

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Buffalo to Chicago

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

Layovers

Other information

What is the cheapest month to fly to Chicago?

The month of August is, on average, the cheapest month to fly to Chicago from Buffalo, with most prices found around $217. If you’re not able to fly to Chicago in August, then September is your next best option. Flight prices from Buffalo to Chicago during September average around $269.

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

The cheapest day to depart on your flight to Chicago is on a Friday when prices can be found for as low as $426. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Buffalo to Chicago for around $527.

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

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Buffalo to Chicago during this time can be as low as $421. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $574.

What is the cheapest Buffalo to Chicago flight route?

Fly from Buffalo to Chicago Midway for the best Buffalo - Chicago flight prices

How far in advance should I book a flight to Chicago?

You are more likely to see cheaper flights to Chicago from Buffalo when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $339 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Buffalo for as low as $254 on momondo.

What cabin class options are available on Buffalo to Chicago flights?

There are 4 cabin classes available to choose from on Buffalo to Chicago 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 Buffalo to Chicago flights?

No. A direct flight is the cheapest option for a flight between Buffalo to Chicago.

How have Buffalo to Chicago flight prices changed over time?

As of November 2025, prices for Buffalo to Chicago flights are approximately 69% more expensive when compared to flights at the same time last year.

When to book flights from Buffalo to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Buffalo to Chicago according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Buffalo to Chicago (BUF to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to Chicago

Best Price Found	$174
Fastest flight time	1h 40m
Direct flights	Every day
Airports in Chicago	2 airports

The best one-way flight to Chicago from Buffalo in the past 72 hours is $174. The best round-trip flight deal from Buffalo to Chicago found on momondo in the last 72 hours is $312.

The fastest flight from Buffalo to Chicago takes 1h 40m

Direct flights go from Buffalo to Chicago every day.

There are 2 airports near Chicago: Chicago O'Hare Intl (ORD), Chicago Midway (MDW)

Search flight deals

How far is Buffalo to Chicago by plane?
A flight from Buffalo to Chicago will travel around 451.4 mi. Flights usually cover this in 1h 45m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Buffalo Airport to Chicago?
Prices for flights from Buffalo Airport to Chicago were last updated today.
How many operators does momondo search for flights from Buffalo Airport to Chicago?
As of November 2025, there are 4 operators available to choose from for flights from Buffalo Airport to Chicago.
How old do you have to be to fly from Buffalo Airport to Chicago?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Buffalo Airport to Chicago.
What documentation or ID do you need to fly to Chicago?
The travel and health documents you'll need for your trip to Chicago 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 Chicago. 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 Buffalo to Chicago?
momondo data reveals that the most frequently booked plane model on the route from Buffalo to Chicago is Boeing 737-800, representing 19.87% of all bookings. The subsequent popular models are Embraer 175 at 10.32%, Canadair (Bombardier) Regional Jet CRJ-550 at 10.32%, and Boeing 737 MAX 8 at 9.22%.
What is the most popular airline from Buffalo to Chicago?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Buffalo to Chicago is American Airlines (38% of total bookings). The next most popular airlines are United Airlines (30%), Southwest (25%), and Frontier (7%).

Best airlines flying from Buffalo to Chicago

Compare and see reviews for airlines that fly from Buffalo to Chicago with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $58	Free Cancellation	Rating 5.8 3,116 reviews	Search Frontier flights
American Airlines	PriceFrom $160	Free Cancellation	Rating 7.2 11,040 reviews	Search American Airlines flights
United Airlines	PriceFrom $175	Free Cancellation	Rating 7.4 9,007 reviews	Search United Airlines flights
Southwest	PriceFrom $259	Free Cancellation	Rating 8.0 4,241 reviews	Search Southwest flights

Southwest Flights From Buffalo to Chicago
Southwest is one of the most popular airlines flying from Buffalo to Chicago, operating 12 flights/week on average for this route. A good Southwest flight deal for Buffalo to Chicago starts from $259 round-trip, up to an average price of $340. Our users have rated Southwest at 8.0/10.
United Airlines Flights From Buffalo to Chicago
United Airlines (7.4/10 from 9,007 reviews) operates around 25 flights from Buffalo to Chicago in any given week. The average United Airlines airfare for this route is around $381, with deals from around $175 rare but found on momondo. Referenced prices are for round-trip Buffalo to Chicago flight searches in the last 72 hours.

Merrillville

New Buffalo

Hammond

Benton Harbor

Saint Joseph

Portage

Lansing

Schererville

Valparaiso

Crown Point

Munster

Chesterton

Monticello

Porter

Griffith

Saint John

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Buffalo to Chicago. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Chicago from Buffalo which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Buffalo to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from Buffalo and alert you when they change.

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Find better results for your trip to the United States

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Chicago O'Hare Intl Airport

Chicago Greater Rockford Airport

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Cheap flights from Buffalo to Chicago 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 Buffalo to Chicago departing on 12/4. 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

Filter for what you want

Filter for what you want

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JetBlue flights from Buffalo to Chicago

Our best JetBlue deals on Buffalo to Chicago flight tickets

American Airlines flights from Buffalo to Chicago

Our best American Airlines deals on Buffalo to Chicago flight tickets

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Use the filters below to find and compare flights from Buffalo to Chicago that are best for you.

See travel insights to Chicago from

How to get the cheapest flight ticket from Buffalo to Chicago

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 Chicago?

The month of August is, on average, the cheapest month to fly to Chicago from Buffalo, with most prices found around $217. If you’re not able to fly to Chicago in August, then September is your next best option. Flight prices from Buffalo to Chicago during September average around $269.

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

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

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Buffalo to Chicago during this time can be as low as $421. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $574.

What is the cheapest Buffalo to Chicago flight route?

Fly from Buffalo to Chicago Midway for the best Buffalo - Chicago flight prices

How far in advance should I book a flight to Chicago?

What cabin class options are available on Buffalo to Chicago flights?

There are 4 cabin classes available to choose from on Buffalo to Chicago 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 Buffalo to Chicago flights?

No. A direct flight is the cheapest option for a flight between Buffalo to Chicago.

How have Buffalo to Chicago flight prices changed over time?

As of November 2025, prices for Buffalo to Chicago flights are approximately 69% more expensive when compared to flights at the same time last year.

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

Frontier, JetBlue, and American Airlines are the most popular carriers operating from Buffalo to Chicago

What airlines fly to Chicago?

Which airport is the most popular layover for flights between Buffalo and Chicago?

Orlando (MCO) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Buffalo to Chicago?

Flights via Denver (DEN) offer the lowest average round-trip price of $198.

Which layover airport has the shortest travel time from Buffalo to Chicago?

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 8h 02m.

Which layover airport has the shortest connection time from Buffalo to Chicago?

Denver (DEN) has the shortest average layover time for this route: 2h 28m.

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

The number of flights available between Buffalo and Chicago is 26 per day as of November 2025. The most frequent departure time is 1:00PM, with 50% of daily flights leaving in the afternoon.

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

As of November 2025, 185 flights take off from Buffalo and land in Chicago each week. The most common flight departure day for this route is Thu, with 18% of weekly flights taking off on this day.

When to book flights from Buffalo to Chicago

Cheap Buffalo to Chicago (BUF to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to Chicago

Best Price Found

Fastest flight time

Direct flights

Airports in Chicago

How far is Buffalo to Chicago by plane?

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

How many operators does momondo search for flights from Buffalo Airport to Chicago?

How old do you have to be to fly from Buffalo Airport to Chicago?

What documentation or ID do you need to fly to Chicago?

What is the most popular plane model from Buffalo to Chicago?

What is the most popular airline from Buffalo to Chicago?

Best airlines flying from Buffalo to Chicago

Compare and see reviews for airlines that fly from Buffalo to Chicago with momondo

Southwest Flights From Buffalo to Chicago

United Airlines Flights From Buffalo to Chicago

Traveling to a place near Chicago?

Why use momondo?

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

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

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

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

An easier way to manage your Chicago 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