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Cheap flights from Buffalo to Illinois from $103

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Buffalo to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:54 pm - 11:16 pmBUF  Buffalo-STL Lambert-St Louis
11h 22m1 stop Orlando
Frontier Logo
4:26 pm - 6:52 pmSTL  Lambert-St Louis-BUF Buffalo
25h 26m1 stop Orlando
$202Frontier
Thu, Oct 29 - Sat, Oct 31
Southwest Logo
8:05 am - 11:00 amBUF  Buffalo-STL Lambert-St Louis
3h 55m1 stop Chicago Midway
Southwest Logo
10:55 am - 4:00 pmSTL  Lambert-St Louis-BUF Buffalo
4h 05m1 stop Chicago Midway
$227Southwest
Tue, Nov 17 - Wed, Nov 18
Delta Logo
9:06 am - 1:53 pmBUF  Buffalo-STL Lambert-St Louis
5h 47m1 stop Detroit Metropolitan Wayne County
Delta Logo
6:47 am - 11:35 amSTL  Lambert-St Louis-BUF Buffalo
3h 48m1 stop Detroit Metropolitan Wayne County
$227Delta
Tue, Oct 20 - Wed, Oct 21
Frontier Logo
1:44 pm - 11:43 pmBUF  Buffalo-MDW Chicago Midway
10h 59m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
6:16 am - 1:15 pmMDW  Chicago Midway-BUF Buffalo
5h 59m1 stop Atlanta Hartsfield-Jackson
$232Frontier
Sat, Oct 24 - Wed, Oct 28
Southwest Logo
4:25 pm - 10:05 pmBUF  Buffalo-STL Lambert-St Louis
6h 40m2 stops Baltimore/Washington Chicago Midway
Southwest Logo
5:45 am - 1:20 pmSTL  Lambert-St Louis-BUF Buffalo
6h 35m1 stop Tampa
$232Southwest
Tue, Oct 20 - Wed, Oct 21
American Airlines Logo
6:46 pm - 11:59 pmBUF  Buffalo-STL Lambert-St Louis
6h 13m1 stop Chicago O'Hare Intl
American Airlines Logo
11:23 am - 6:05 pmSTL  Lambert-St Louis-BUF Buffalo
5h 42m1 stop Chicago O'Hare Intl
$241American Airlines
Mon, Nov 9 - Sat, Nov 14
American Airlines Logo
6:00 am - 12:46 pmBUF  Buffalo-STL Lambert-St Louis
7h 46m1 stop Washington, D.C. Reagan-National
American Airlines Logo
5:21 pm - 11:59 pmSTL  Lambert-St Louis-BUF Buffalo
5h 38m1 stop Chicago O'Hare Intl
$241American Airlines
Thu, Oct 29 - Sat, Oct 31
United Airlines Logo
10:46 am - 11:45 amBUF  Buffalo-ORD Chicago O'Hare Intl
1h 59mnonstop
United Airlines Logo
6:00 pm - 8:47 pmORD  Chicago O'Hare Intl-BUF Buffalo
1h 47mnonstop
$251United Airlines
Wed, Oct 21 - Wed, Oct 21
United Airlines Logo
6:00 am - 12:10 pmBUF  Buffalo-STL Lambert-St Louis
7h 10m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl
United Airlines Logo
5:00 pm - 10:59 pmSTL  Lambert-St Louis-BUF Buffalo
4h 59m1 stop Newark
$260United Airlines
Thu, Nov 12 - Mon, Nov 23
Delta Logo
12:09 pm - 4:22 pmBUF  Buffalo-MLI Moline Quad-City
5h 13m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:55 am - 5:23 pmMLI  Moline Quad-City-BUF Buffalo
10h 28m2 stops Atlanta Hartsfield-Jackson New York LaGuardia
$344Delta
Thu, Jan 21 - Tue, Jan 26

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Frontier flights from Buffalo to Illinois

Our best Frontier deals on Buffalo to Illinois flight tickets
Frontier
Oct 29
BUF12:54 pmBuffalo
11h 22m
1 stop
STL11:16 pmLambert-St Louis
Oct 31
STL4:26 pmLambert-St Louis
25h 26m
1 stop
BUF6:52 pmBuffalo
$202
Frontier
Oct 24
BUF1:44 pmBuffalo
10h 59m
1 stop
MDW11:43 pmChicago Midway
Oct 28
MDW6:16 amChicago Midway
5h 59m
1 stop
BUF1:15 pmBuffalo
$232
Frontier
Oct 21
BUF1:44 pmBuffalo
10h 59m
1 stop
MDW11:43 pmChicago Midway
Oct 22
MDW6:40 pmChicago Midway
17h 19m
1 stop
BUF12:59 pmBuffalo
$236

United Airlines flights from Buffalo to Illinois

Our best United Airlines deals on Buffalo to Illinois flight tickets
United Airlines
Nov 12
BUF6:00 amBuffalo
7h 10m
2 stops
STL12:10 pmLambert-St Louis
Nov 23
STL5:00 pmLambert-St Louis
4h 59m
1 stop
BUF10:59 pmBuffalo
$260
United Airlines
Dec 12
BUF5:40 pmBuffalo
2h 14m
ORD6:54 pmChicago O'Hare Intl
Dec 14
ORD6:55 amChicago O'Hare Intl
1h 49m
BUF9:44 amBuffalo
$269
United Airlines
Nov 11
BUF5:58 pmBuffalo
4h 42m
1 stop
STL9:40 pmLambert-St Louis
Nov 23
STL1:08 pmLambert-St Louis
6h 28m
1 stop
BUF8:36 pmBuffalo
$291

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Thu 10/29

12:54 pm-11:16 pm

1 stop11h 22m

Lambert-St Louis

Sat 10/31

4:26 pm-6:52 pm

1 stop25h 26m

$202

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Tue 11/17

8:05 am-11:00 am

1 stop3h 55m

Lambert-St Louis

Wed 11/18

10:55 am-4:00 pm

1 stop4h 05m

$227

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Tue 10/20

9:06 am-1:53 pm

1 stop5h 47m

Lambert-St Louis

Wed 10/21

6:47 am-11:35 am

1 stop3h 48m

$227

BuffaloChicago

BUF Buffalo - MDW Chicago Midway

BUFMDW

Buffalo

Sat 10/24

1:44 pm-11:43 pm

1 stop10h 59m

Chicago Midway

Wed 10/28

6:16 am-1:15 pm

1 stop5h 59m

$232

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Tue 10/20

4:25 pm-10:05 pm

2 stops6h 40m

Lambert-St Louis

Wed 10/21

5:45 am-1:20 pm

1 stop6h 35m

$232

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Mon 11/9

6:46 pm-11:59 pm

1 stop6h 13m

Lambert-St Louis

Sat 11/14

11:23 am-6:05 pm

1 stop5h 42m

$241

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Thu 10/29

6:00 am-12:46 pm

1 stop7h 46m

Lambert-St Louis

Sat 10/31

5:21 pm-11:59 pm

1 stop5h 38m

$241
Quickest round-trip

BuffaloChicago

BUF Buffalo - ORD Chicago O'Hare Intl

BUFORD

Buffalo

Wed 10/21

10:46 am-11:45 am

Nonstop1h 59m

Chicago O'Hare Intl

Wed 10/21

6:00 pm-8:47 pm

Nonstop1h 47m

$251

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Thu 11/12

6:00 am-12:10 pm

2 stops7h 10m

Lambert-St Louis

Mon 11/23

5:00 pm-10:59 pm

1 stop4h 59m

$260

BuffaloMoline

BUF Buffalo - MLI Moline Quad-City

BUFMLI

Buffalo

Thu 1/21

12:09 pm-4:22 pm

1 stop5h 13m

Moline Quad-City

Tue 1/26

5:55 am-5:23 pm

2 stops10h 28m

$344

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Buffalo to Illinois

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 Illinois?

The cheapest month to fly to Illinois from Buffalo is in January. Flight prices, which tend to average around $278, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of January, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $332.

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

The cheapest day to depart from Buffalo to Illinois is on a Thursday when prices can be found for as low as $444. Flights from Buffalo to Illinois on a Sunday will generally be more expensive and average around $575. 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 Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Buffalo to Illinois during this time can be as low as $427. Flights at noon are often more expensive with an average ticket price of $591.

What is the cheapest Buffalo to Illinois flight route?

Fly from Buffalo to Chicago O'Hare Intl for the best Buffalo - Illinois flight prices

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

You are more likely to see cheaper flights to Illinois from Buffalo when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $355 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Buffalo for as low as $223 on momondo.

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

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

You could potentially save up to 37% on your flight if you consider stops on a Buffalo to Illinois flight.

Cheap Buffalo to Illinois flight deals and tips

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

Best Price Found

$103

Fastest flight time

1h 35m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Buffalo in the past 72 hours is $103. The best round-trip flight deal from Buffalo to Illinois found on momondo in the last 72 hours is $202.
The fastest flight from Buffalo to Illinois takes 1h 35m
Direct flights go from Buffalo to Illinois every day.
There are 98 airports in Illinois. From Buffalo there are direct flights to Chicago Midway (MDW).
Search flight deals

Frequently asked questions about flying from Buffalo to Illinois

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

    Prices for flights from Buffalo Airport to Illinois are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Buffalo Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Buffalo to Illinois?

Best airlines flying from Buffalo to Illinois

Compare and see reviews for airlines that fly from Buffalo to Illinois with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $145Free CancellationRating
7.0
12,087 reviews
Search American Airlines flights
United AirlinesPriceFrom $235Free CancellationRating
7.4
10,232 reviews
Search United Airlines flights
SouthwestPriceFrom $253Free CancellationRating
8.0
4,191 reviews
Search Southwest flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Buffalo to Illinois. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Buffalo to Illinois flights to just show those with flexible booking policies.

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

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

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

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Find better results for your trip to Illinois

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