BUF

$70 Find Cheap Flights from Illinois to Buffalo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Buffalo departing on 5/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Illinois to Buffalo

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Buffalo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Illinois to Buffalo

Thu, May 28 - Mon, Jun 1
Frontier Logo
6:33 pm - 1:54 pm
STL
-
BUF
18h 21m
1 stop
Frontier Logo
2:49 pm - 5:33 pm
BUF
-
STL
27h 44m
1 stop
$127Frontier
Wed, May 6 - Fri, May 8
Frontier Logo
5:27 pm - 10:41 am
STL
-
BUF
16h 14m
1 stop
Frontier Logo
2:49 pm - 8:55 am
BUF
-
STL
19h 06m
1 stop
$129Frontier
Thu, Apr 30 - Mon, May 4
Multiple Airlines Logo
11:28 am - 11:23 am
ORD
-
BUF
22h 55m
1 stop
Multiple Airlines Logo
12:32 pm - 7:55 am
BUF
-
ORD
20h 23m
1 stop
$148Multiple Airlines
Wed, May 6 - Mon, May 11
Multiple Airlines Logo
5:27 pm - 10:41 am
STL
-
BUF
16h 14m
1 stop
Multiple Airlines Logo
7:31 pm - 8:55 am
BUF
-
STL
38h 24m
2 stops
$153Multiple Airlines
Tue, Jun 23 - Tue, Jun 30
United Airlines Logo
2:31 pm - 9:03 pm
MLI
-
BUF
5h 32m
1 stop
United Airlines Logo
5:52 pm - 9:14 pm
BUF
-
MLI
4h 22m
1 stop
$329United Airlines
Tue, Jun 23 - Tue, Jun 30
United Airlines Logo
3:52 pm - 9:03 pm
MLI
-
BUF
4h 11m
1 stop
United Airlines Logo
6:00 am - 1:56 pm
BUF
-
MLI
8h 56m
2 stops
$334United Airlines
Thu, Jun 4 - Sun, Jun 7
American Airlines Logo
7:03 pm - 12:14 am
PIA
-
BUF
4h 11m
1 stop
American Airlines Logo
6:00 am - 9:15 am
BUF
-
PIA
4h 15m
1 stop
$374American Airlines
Thu, Jun 18 - Sun, Jun 21
American Airlines Logo
6:56 pm - 12:14 am
MLI
-
BUF
4h 18m
1 stop
American Airlines Logo
6:00 am - 10:27 am
BUF
-
MLI
5h 27m
1 stop
$389American Airlines
Fri, May 15 - Sun, May 17
Delta Logo
4:14 pm - 11:59 pm
BMI
-
BUF
6h 45m
1 stop
Delta Logo
6:15 am - 11:23 am
BUF
-
BMI
6h 08m
1 stop
$472Delta
Fri, May 15 - Sun, May 17
Delta Logo
12:05 pm - 11:32 pm
BMI
-
BUF
10h 27m
2 stops
Delta Logo
4:55 pm - 10:30 pm
BUF
-
BMI
6h 35m
1 stop
$712Delta
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Good to know

Low seasonJanuary
Cheapest flight$70
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Chicago Midway Airport to Buffalo

FAQs for booking flights from Illinois to Buffalo

  • How does KAYAK find such low prices on flights from Illinois to Buffalo?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Buffalo.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Buffalo?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buffalo from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Illinois to Buffalo?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Buffalo with an airline and back to Illinois with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Buffalo?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Buffalo from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Amherst
Cheektowaga
Williamsville
Lockport
West Seneca
Bowmansville
Grand Island
Eden

Everything you need to know for your flight to Buffalo

Information on the airport you'll fly into in Buffalo