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 4/22. 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

Sat, May 2 - Tue, May 5
Frontier Logo
5:50 am - 12:13 pm
ORD
-
BUF
5h 23m
1 stop
Frontier Logo
11:36 am - 7:51 pm
BUF
-
ORD
9h 15m
1 stop
$140Frontier
Thu, Apr 23 - Thu, Apr 30
Frontier Logo
6:00 am - 11:23 am
MDW
-
BUF
28h 23m
1 stop
Frontier Logo
1:08 pm - 10:19 pm
BUF
-
MDW
10h 11m
1 stop
$147Frontier
Thu, Apr 23 - Thu, Apr 30
Frontier Logo
4:28 pm - 11:23 am
ORD
-
BUF
17h 55m
1 stop
Frontier Logo
1:08 pm - 10:39 pm
BUF
-
ORD
10h 31m
1 stop
$147Frontier
Thu, Apr 30 - Mon, May 4
Frontier Logo
5:50 am - 12:12 pm
ORD
-
BUF
5h 22m
1 stop
Frontier Logo
12:32 pm - 10:39 pm
BUF
-
ORD
11h 07m
1 stop
$160Frontier
Thu, Apr 23 - Mon, Apr 27
Multiple Airlines Logo
11:28 am - 11:23 am
ORD
-
BUF
22h 55m
1 stop
Multiple Airlines Logo
12:32 pm - 10:02 am
BUF
-
ORD
22h 30m
1 stop
$165Multiple Airlines
Mon, Jun 1 - Mon, Jun 8
United Airlines Logo
9:23 am - 4:46 pm
STL
-
BUF
6h 23m
1 stop
United Airlines Logo
5:52 pm - 9:16 pm
BUF
-
STL
4h 24m
1 stop
$265United Airlines
Mon, May 11 - Fri, May 15
American Airlines Logo
3:42 pm - 10:04 pm
STL
-
BUF
5h 22m
1 stop
American Airlines Logo
6:00 pm - 10:19 pm
BUF
-
STL
5h 19m
1 stop
$286American Airlines
Sat, Apr 18 - Sat, Apr 25
United Airlines Logo
6:30 am - 1:13 pm
STL
-
BUF
5h 43m
1 stop
United Airlines Logo
7:00 am - 10:45 am
BUF
-
STL
4h 45m
1 stop
$297United Airlines
Thu, May 14 - Sat, May 16
Southwest Logo
5:40 am - 10:15 am
STL
-
BUF
3h 35m
1 stop
Southwest Logo
2:00 pm - 7:35 pm
BUF
-
STL
6h 35m
1 stop
$300Southwest
Thu, Apr 23 - Sat, Apr 25
American Airlines Logo
6:05 am - 10:51 am
CMI
-
BUF
3h 46m
1 stop
American Airlines Logo
3:01 pm - 6:28 pm
BUF
-
CMI
4h 27m
1 stop
$318American Airlines
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Good to know

Low seasonJanuary
Cheapest flight$70
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 1% 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