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

The number of flights available between Illinois and Buffalo is 23 per day as of March 2026. The most frequent departure time is 8:00PM, with 53% of daily flights leaving in the evening.

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

Frontier, JetBlue, and United Airlines are the most popular carriers operating from Illinois to Buffalo

What airlines fly to Buffalo?

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Buffalo from Illinois according to our data. American Airlines is the first choice among our users, with 52% 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 Illinois to Buffalo on average per week?

As of March 2026, 161 flights take off from Illinois and land in Buffalo each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.

How long does it take to fly to Buffalo?

On average, it takes 1h 32m to fly from Illinois to Buffalo if you fly out of Chicago (the most popular airport in Illinois) and into Buffalo (the most popular airport in Buffalo). If you’re flying out of Moline and into Buffalo, then the flight time is around 4h 21m.

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

Prices for flights from Illinois to Buffalo Airport are refreshed on a daily basis.

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

As of March 2026, there are 5 operators available to choose from for flights from Illinois to Buffalo Airport.

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

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 Illinois 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.

$72 Cheap Flights from Illinois to Buffalo in 2026

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Find the cheapest flights from Illinois to Buffalo

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:08 pm - 11:40 am

ORD

BUF

16h 32m

1 stop

1:56 pm - 10:23 am

BUF

ORD

21h 27m

1 stop

$139Multiple Airlines

Wed, Apr 15 - Wed, Apr 22

11:07 am - 11:40 am

ORD

BUF

23h 33m

1 stop

1:56 pm - 12:24 am

BUF

ORD

11h 28m

2 stops

$168Multiple Airlines

Wed, Apr 15 - Wed, Apr 22

2:15 pm - 12:52 pm

MDW

BUF

21h 37m

1 stop

1:56 pm - 7:31 pm

BUF

MDW

6h 35m

1 stop

$169Frontier

Tue, Apr 14 - Wed, Apr 22

6:08 pm - 12:52 pm

ORD

BUF

17h 44m

1 stop

12:32 pm - 9:40 am

BUF

ORD

22h 08m

1 stop

$169Frontier

Tue, Apr 14 - Mon, Apr 20

11:16 am - 5:30 pm

BMI

BUF

5h 14m

1 stop

6:00 am - 10:46 am

BUF

BMI

5h 46m

1 stop

$309American Airlines

Thu, May 14 - Mon, May 18

11:16 am - 4:36 pm

BMI

BUF

4h 20m

1 stop

7:00 am - 2:16 pm

BUF

BMI

8h 16m

2 stops

$314American Airlines

Tue, Apr 7 - Tue, Apr 14

4:00 pm - 11:58 pm

BMI

BUF

6h 58m

1 stop

6:00 am - 11:11 am

BUF

BMI

6h 11m

1 stop

$329Delta

Sat, Jun 13 - Fri, Jun 19

12:00 pm - 11:03 pm

BMI

BUF

10h 03m

2 stops

6:00 am - 11:11 am

BUF

BMI

6h 11m

1 stop

$334Delta

Tue, Jun 16 - Wed, Jun 24

2:39 pm - 9:03 pm

PIA

BUF

5h 24m

1 stop

5:58 pm - 12:15 am

BUF

PIA

7h 17m

1 stop

$354United Airlines

Thu, Jun 4 - Sun, Jun 7

6:00 am - 2:25 pm

BMI

BUF

7h 25m

2 stops

6:00 am - 2:23 pm

BUF

BMI

9h 23m

2 stops

$374United Airlines

Tue, Jun 16 - Sun, Jun 21

Frontier flights from Illinois to Buffalo

Our best Frontier deals on Illinois to Buffalo flight tickets

Frontier

Apr 14

MDW2:15 pmChicago Midway

21h 37m

1 stop

BUF12:52 pmBuffalo

Apr 22

BUF1:56 pmBuffalo

6h 35m

1 stop

MDW7:31 pmChicago Midway

$169

Frontier

Apr 15

MDW6:30 amChicago Midway

5h 22m

1 stop

BUF12:52 pmBuffalo

Apr 22

BUF1:56 pmBuffalo

9h 18m

1 stop

MDW10:14 pmChicago Midway

$180

Frontier

Apr 27

MDW2:15 pmChicago Midway

21h 27m

1 stop

BUF12:42 pmBuffalo

May 4

BUF12:32 pmBuffalo

23h 40m

1 stop

MDW11:12 amChicago Midway

$186

Delta flights from Illinois to Buffalo

Our best Delta deals on Illinois to Buffalo flight tickets

Delta

May 19

ORD5:19 pmChicago O'Hare Intl

5h 40m

1 stop

BUF11:59 pmBuffalo

May 26

BUF6:04 amBuffalo

8h 12m

1 stop

ORD1:16 pmChicago O'Hare Intl

$257

Delta

Apr 13

MDW6:38 pmChicago Midway

3h 01m

1 stop

BUF10:39 pmBuffalo

Apr 22

BUF4:59 pmBuffalo

6h 29m

1 stop

MDW10:28 pmChicago Midway

$285

Delta

Apr 13

MDW6:38 pmChicago Midway

3h 01m

1 stop

BUF10:39 pmBuffalo

Apr 20

BUF4:59 pmBuffalo

6h 29m

1 stop

MDW10:28 pmChicago Midway

$305

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 4/15

6:08 pm-11:40 am

1 stop16h 32m

Buffalo

Wed 4/22

1:56 pm-10:23 am

1 stop21h 27m

$139

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 4/15

11:07 am-11:40 am

1 stop23h 33m

Buffalo

Wed 4/22

1:56 pm-12:24 am

2 stops11h 28m

$168

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Tue 4/14

2:15 pm-12:52 pm

1 stop21h 37m

Buffalo

Wed 4/22

1:56 pm-7:31 pm

1 stop6h 35m

$169

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 4/14

6:08 pm-12:52 pm

1 stop17h 44m

Buffalo

Mon 4/20

12:32 pm-9:40 am

1 stop22h 08m

$169

Quickest round-trip

BloomingtonBuffalo

BMI - BUF

BMIBUF

Bloomington-Normal

Thu 5/14

11:16 am-5:30 pm

1 stop5h 14m

Buffalo

Mon 5/18

6:00 am-10:46 am

1 stop5h 46m

$309

BloomingtonBuffalo

BMI - BUF

BMIBUF

Bloomington-Normal

Tue 4/7

11:16 am-4:36 pm

1 stop4h 20m

Buffalo

Tue 4/14

7:00 am-2:16 pm

2 stops8h 16m

$314

BloomingtonBuffalo

BMI - BUF

BMIBUF

Bloomington-Normal

Sat 6/13

4:00 pm-11:58 pm

1 stop6h 58m

Buffalo

Fri 6/19

6:00 am-11:11 am

1 stop6h 11m

$329

BloomingtonBuffalo

BMI - BUF

BMIBUF

Bloomington-Normal

Tue 6/16

12:00 pm-11:03 pm

2 stops10h 03m

Buffalo

Wed 6/24

6:00 am-11:11 am

1 stop6h 11m

$334

PeoriaBuffalo

PIA - BUF

PIABUF

Greater Peoria

Thu 6/4

2:39 pm-9:03 pm

1 stop5h 24m

Buffalo

Sun 6/7

5:58 pm-12:15 am

1 stop7h 17m

$354

BloomingtonBuffalo

BMI - BUF

BMIBUF

Bloomington-Normal

Tue 6/16

6:00 am-2:25 pm

2 stops7h 25m

Buffalo

Sun 6/21

6:00 am-2:23 pm

2 stops9h 23m

$374

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 Illinois 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 Illinois during August instead. Flights to Buffalo in August, while not as cheap as those in September, still average around $280.

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 $297. Flights from Illinois to Buffalo on a Sunday will generally be more expensive and average around $350. 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 Illinois 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 $346 per ticket.

What is the cheapest Illinois to Buffalo flight route?

Fly from Chicago O'Hare Intl to Buffalo for the best Illinois - 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 Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Buffalo for around $313 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buffalo from Illinois for as low as $250 on momondo.

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

There are 4 cabin classes available to choose from on Illinois to Buffalo flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Illinois to Buffalo flight deals and tips

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

Best Price Found	$184
Fastest flight time	1h 25m
Direct flights	Every day
Airports in Buffalo	1 airport

The best one-way flight to Buffalo from Illinois in the past 72 hours is $184. The best round-trip flight deal from Illinois to Buffalo found on momondo in the last 72 hours is $295.

The fastest flight from Illinois to Buffalo takes 1h 25m

Direct flights go from Illinois to Buffalo every day.

There is 1 airport in Buffalo. From Illinois there are direct flights to Buffalo (BUF).

Search flight deals

When did momondo last update prices for flights from Illinois to Buffalo Airport?
Prices for flights from Illinois to Buffalo Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Illinois to Buffalo Airport?
As of March 2026, there are 5 operators available to choose from for flights from Illinois to Buffalo Airport.
How old do you have to be to fly from Illinois to Buffalo Airport?
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 Illinois 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 Illinois to Buffalo?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Illinois to Buffalo is Airbus A319 (18.83% of total bookings). The next most popular plane models are Embraer 175 (17.33%), Canadair (Bombardier) Regional Jet CRJ-550 (16.67%), and Boeing 737-800 (8.17%).

Best airlines flying from Illinois to Buffalo

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $132	Free Cancellation	Rating 5.7 3,025 reviews	Search Frontier flights
American Airlines	PriceFrom $177	Free Cancellation	Rating 7.1 11,468 reviews	Search American Airlines flights
United Airlines	PriceFrom $197	Free Cancellation	Rating 7.4 9,435 reviews	Search United Airlines flights
Southwest	PriceFrom $278	Free Cancellation	Rating 8.0 4,320 reviews	Search Southwest flights

Batavia

Cheektowaga

Amherst

Grand Island

Tonawanda

Orchard Park

Williamsville

Lockport

West Seneca

Bowmansville

East Aurora

Eden

Angola

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Buffalo from Illinois.

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

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

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

Once all potential Illinois to Buffalo 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 Illinois to Buffalo right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Illinois to Buffalo now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Buffalo and let you know when they change.

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Cheap flights from Illinois 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 Illinois to Buffalo departing on 5/16. 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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How to get the cheapest flight ticket from Illinois to Buffalo

What is the cheapest month to fly to Buffalo?

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 Illinois to Buffalo flight route?

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

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

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

What airlines fly to Buffalo?

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

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

How long does it take to fly to Buffalo?

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List of cabin classes available on flights landing in Buffalo. Availability may vary depending on flight origin and airline.

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