EYW

$89 Find Cheap Flights from Illinois to Key West

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Key West departing on 2/14. 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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Everything you should know

Cheapest round-trip
$171
Overall average: $398
Multiple Airlines
Sat 2/7Fri 2/13
STL - EYW • 1 stop
Cheapest non-stop
$297
Typical prices: $469-$640
American Airlines
Sun 2/15Sat 2/21
ORD - EYW • Non-stop
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We hope you love your trip to Key West!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from Illinois to Key West

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Key West 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 Key West

Sat, Feb 7 - Fri, Feb 13
Multiple Airlines Logo
5:42 pm - 9:06 am
STL
-
EYW
14h 24m1 stop
Multiple Airlines Logo
1:06 pm - 12:27 am
EYW
-
STL
12h 21m1 stop
$171Multiple Airlines
Sat, Feb 7 - Fri, Feb 13
Multiple Airlines Logo
5:42 pm - 2:56 pm
STL
-
EYW
20h 14m1 stop
Multiple Airlines Logo
1:06 pm - 8:56 am
EYW
-
STL
20h 50m1 stop
$172Multiple Airlines
Sat, Feb 7 - Fri, Feb 13
Multiple Airlines Logo
3:46 pm - 9:37 pm
STL
-
EYW
28h 51m2 stops
Multiple Airlines Logo
1:06 pm - 12:27 am
EYW
-
STL
12h 21m1 stop
$210Multiple Airlines
Wed, Mar 18 - Wed, Mar 25
American Airlines Logo
1:34 pm - 10:37 pm
STL
-
EYW
8h 03m1 stop
American Airlines Logo
2:25 pm - 7:29 pm
EYW
-
STL
6h 04m1 stop
$223American Airlines
Wed, Feb 25 - Wed, Mar 4
American Airlines Logo
9:37 am - 7:15 pm
STL
-
EYW
8h 38m2 stops
American Airlines Logo
1:55 pm - 9:12 pm
EYW
-
STL
8h 17m2 stops
$234American Airlines
Tue, Feb 10 - Sat, Feb 14
United Airlines Logo
8:52 am - 4:22 pm
ORD
-
EYW
6h 30m1 stop
United Airlines Logo
6:35 pm - 11:43 pm
EYW
-
ORD
6h 08m1 stop
$287United Airlines
Mon, Mar 9 - Mon, Mar 16
Spirit Airlines Logo
7:00 am - 1:30 pm
ORD
-
EYW
5h 30m1 stop
Spirit Airlines Logo
2:35 pm - 11:41 pm
EYW
-
ORD
10h 06m1 stop
$292Spirit Airlines
Sat, Feb 21 - Wed, Feb 25
Delta Logo
11:06 am - 5:01 pm
MDW
-
EYW
4h 55m1 stop
Delta Logo
5:56 pm - 10:31 pm
EYW
-
MDW
5h 35m1 stop
$294Delta
Fri, Jan 30 - Tue, Feb 3
Delta Logo
5:30 am - 11:25 am
ORD
-
EYW
4h 55m1 stop
Delta Logo
6:06 pm - 11:56 pm
EYW
-
ORD
6h 50m1 stop
$294Delta
Sat, Feb 7 - Sat, Feb 14
United Airlines Logo
8:52 am - 4:22 pm
ORD
-
EYW
6h 30m1 stop
United Airlines Logo
7:00 am - 9:48 am
EYW
-
ORD
3h 48mnonstop
$295United Airlines
Useful Info

Good to know

Low seasonSeptember
Cheapest flight$89
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from St. Louis to Key West

FAQs for booking flights from Illinois to Key West

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

    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 Key West.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Key West 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 Key West?

    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 Key West 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 Key West?

    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 Key West 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 Key West?

Book flights to Key West if you plan to visit one of these locations
Little Torch Key

Everything you need to know for your flight to Key West

Information on the airport you'll fly into in Key West

Key West (EYW)