Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to Buffalo from $74

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 3/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Illinois to Buffalo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:05 am - 12:54 pm
ORD
-
BUF
6h 49m
1 stop
Frontier Logo
1:48 pm - 10:39 pm
BUF
-
ORD
9h 51m
1 stop
$148Frontier
Thu, Feb 26 - Mon, Mar 2
Frontier Logo
11:55 am - 10:49 am
ORD
-
BUF
21h 54m
1 stop
Frontier Logo
12:50 pm - 8:23 am
BUF
-
ORD
20h 33m
1 stop
$160Frontier
Thu, Mar 5 - Mon, Mar 9
JetBlue Logo
12:41 pm - 6:35 pm
ORD
-
BUF
4h 54m
1 stop
JetBlue Logo
6:00 am - 11:48 am
BUF
-
ORD
6h 48m
1 stop
$172JetBlue
Thu, Mar 5 - Mon, Mar 9
Multiple Airlines Logo
11:55 am - 10:49 am
ORD
-
BUF
21h 54m
1 stop
Multiple Airlines Logo
9:25 pm - 11:22 am
BUF
-
ORD
14h 57m
2 stops
$179Multiple Airlines
Thu, Mar 5 - Mon, Mar 9
JetBlue Logo
12:59 pm - 6:46 pm
ORD
-
BUF
4h 47m
1 stop
JetBlue Logo
6:00 am - 11:48 am
BUF
-
ORD
6h 48m
1 stop
$185JetBlue
Wed, Mar 4 - Mon, Mar 9
Multiple Airlines Logo
5:05 am - 12:54 pm
ORD
-
BUF
6h 49m
1 stop
Multiple Airlines Logo
9:25 pm - 5:46 pm
BUF
-
ORD
21h 21m
1 stop
$189Multiple Airlines
Thu, Mar 5 - Mon, Mar 9
Delta Logo
5:01 pm - 11:26 pm
MLI
-
BUF
5h 25m
1 stop
Delta Logo
4:47 pm - 10:30 pm
BUF
-
MLI
6h 43m
1 stop
$269Delta
Wed, Mar 4 - Mon, Mar 9
Delta Logo
5:55 am - 4:58 pm
MLI
-
BUF
10h 03m
2 stops
Delta Logo
4:47 pm - 10:30 pm
BUF
-
MLI
6h 43m
1 stop
$274Delta
Wed, Mar 4 - Mon, Mar 9
American Airlines Logo
5:00 am - 11:43 am
BMI
-
BUF
5h 43m
1 stop
American Airlines Logo
6:09 am - 11:01 am
BUF
-
BMI
5h 52m
1 stop
$279American Airlines
Wed, Feb 18 - Sun, Feb 22
American Airlines Logo
2:56 pm - 10:50 pm
BMI
-
BUF
6h 54m
2 stops
American Airlines Logo
6:09 am - 11:01 am
BUF
-
BMI
5h 52m
1 stop
$284American Airlines
Wed, Feb 18 - Sun, Feb 22

Frontier flights from Illinois to Buffalo

Our best Frontier deals on Illinois to Buffalo flight tickets
Frontier
Feb 26
ORD5:05 amChicago O'Hare Intl
6h 49m
1 stop
BUF12:54 pmBuffalo
Feb 28
BUF12:00 pmBuffalo
11h 39m
1 stop
ORD10:39 pmChicago O'Hare Intl
$138
Frontier
Feb 26
ORD5:05 amChicago O'Hare Intl
6h 49m
1 stop
BUF12:54 pmBuffalo
Mar 2
BUF1:48 pmBuffalo
9h 51m
1 stop
ORD10:39 pmChicago O'Hare Intl
$148
Frontier
Feb 25
ORD8:30 amChicago O'Hare Intl
26h 04m
1 stop
BUF11:34 amBuffalo
Feb 28
BUF12:00 pmBuffalo
11h 39m
1 stop
ORD10:39 pmChicago O'Hare Intl
$150

American Airlines flights from Illinois to Buffalo

Our best American Airlines deals on Illinois to Buffalo flight tickets
American Airlines
May 7
ORD11:45 amChicago O'Hare Intl
8h 35m
1 stop
BUF9:20 pmBuffalo
May 9
BUF6:00 amBuffalo
2h 09m
ORD7:09 amChicago O'Hare Intl
$217
American Airlines
Feb 25
ORD6:00 amChicago O'Hare Intl
8h 25m
1 stop
BUF3:25 pmBuffalo
Feb 28
BUF6:00 amBuffalo
2h 14m
ORD7:14 amChicago O'Hare Intl
$238
American Airlines
Feb 25
ORD2:50 pmChicago O'Hare Intl
1h 41m
BUF5:31 pmBuffalo
Feb 28
BUF6:35 pmBuffalo
2h 01m
ORD7:36 pmChicago O'Hare Intl
$239

momondo Fare Finder

 
Customize your flight search to find flights from Illinois 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 February 4, 2026.
Use the filters below to find and compare flights from Illinois to Buffalo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 2/26

5:05 am-12:54 pm

1 stop6h 49m

Buffalo

Mon 3/2

1:48 pm-10:39 pm

1 stop9h 51m

$148

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 3/5

11:55 am-10:49 am

1 stop21h 54m

Buffalo

Mon 3/9

12:50 pm-8:23 am

1 stop20h 33m

$160

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 3/5

12:41 pm-6:35 pm

1 stop4h 54m

Buffalo

Mon 3/9

6:00 am-11:48 am

1 stop6h 48m

$172

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 3/5

11:55 am-10:49 am

1 stop21h 54m

Buffalo

Mon 3/9

9:25 pm-11:22 am

2 stops14h 57m

$179

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 3/4

12:59 pm-6:46 pm

1 stop4h 47m

Buffalo

Mon 3/9

6:00 am-11:48 am

1 stop6h 48m

$185

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 3/5

5:05 am-12:54 pm

1 stop6h 49m

Buffalo

Mon 3/9

9:25 pm-5:46 pm

1 stop21h 21m

$189

MolineBuffalo

MLI - BUF

MLIBUF

Moline Quad-City

Wed 3/4

5:01 pm-11:26 pm

1 stop5h 25m

Buffalo

Mon 3/9

4:47 pm-10:30 pm

1 stop6h 43m

$269

MolineBuffalo

MLI - BUF

MLIBUF

Moline Quad-City

Wed 3/4

5:55 am-4:58 pm

2 stops10h 03m

Buffalo

Mon 3/9

4:47 pm-10:30 pm

1 stop6h 43m

$274

BloomingtonBuffalo

BMI - BUF

BMIBUF

Bloomington-Normal

Wed 2/18

5:00 am-11:43 am

1 stop5h 43m

Buffalo

Sun 2/22

6:09 am-11:01 am

1 stop5h 52m

$279

BloomingtonBuffalo

BMI - BUF

BMIBUF

Bloomington-Normal

Wed 2/18

2:56 pm-10:50 pm

2 stops6h 54m

Buffalo

Sun 2/22

6:09 am-11:01 am

1 stop5h 52m

$284

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Buffalo from

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

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 $300.

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 Illinois to Buffalo on a Sunday will generally be more expensive and average around $348. 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 $309. 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 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 $318 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 $265 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.

Can stopping save me money on Illinois to Buffalo flights?

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

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

$120

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 $120. The best round-trip flight deal from Illinois to Buffalo found on momondo in the last 72 hours is $301.
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?

  • 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?

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
FrontierPriceFrom $132Free CancellationRating
5.7
3,051 reviews
Search Frontier flights
American AirlinesPriceFrom $177Free CancellationRating
7.2
11,216 reviews
Search American Airlines flights
United AirlinesPriceFrom $197Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
SouthwestPriceFrom $278Free CancellationRating
8.0
4,272 reviews
Search Southwest flights

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Batavia
Cheektowaga
Amherst
Grand Island
Tonawanda
Williamsville
Orchard Park
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.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 3/6
Fri 3/13
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States