EYW

$120 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 8/23. 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 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, Sep 5 - Wed, Sep 9
Multiple Airlines Logo
5:02 pm - 11:25 am
STL
-
EYW
17h 23m
1 stop
Multiple Airlines Logo
10:04 am - 9:40 am
EYW
-
STL
24h 36m
2 stops
$236Multiple Airlines
Sat, Sep 5 - Wed, Sep 9
Multiple Airlines Logo
5:02 pm - 11:25 am
STL
-
EYW
17h 23m
1 stop
Multiple Airlines Logo
10:04 am - 9:40 am
EYW
-
STL
24h 36m
2 stops
$251Multiple Airlines
Sat, Sep 5 - Thu, Sep 10
Multiple Airlines Logo
5:02 pm - 11:25 am
STL
-
EYW
17h 23m
1 stop
Multiple Airlines Logo
12:01 pm - 9:40 am
EYW
-
STL
22h 39m
2 stops
$257Multiple Airlines
Sat, Sep 5 - Wed, Sep 9
Multiple Airlines Logo
7:44 pm - 11:25 am
ORD
-
EYW
14h 41m
1 stop
Multiple Airlines Logo
10:04 am - 3:26 pm
EYW
-
ORD
30h 22m
2 stops
$262Multiple Airlines
Sat, Aug 15 - Sat, Aug 22
Allegiant Air Logo
1:25 pm - 3:27 pm
PIA
-
EYW
25h 02m
1 stop
Allegiant Air Logo
3:52 pm - 4:47 pm
EYW
-
PIA
25h 55m
1 stop
$278Allegiant Air
Sun, Jul 12 - Thu, Jul 16
Allegiant Air Logo
7:59 pm - 2:37 pm
BMI
-
EYW
17h 38m
1 stop
Allegiant Air Logo
4:17 pm - 8:45 am
EYW
-
BMI
17h 28m
1 stop
$309Allegiant Air
Fri, Aug 14 - Tue, Aug 18
Delta Logo
10:54 am - 5:20 pm
MDW
-
EYW
5h 26m
1 stop
Delta Logo
11:48 am - 4:15 pm
EYW
-
MDW
5h 27m
1 stop
$329Delta
Thu, Sep 10 - Tue, Sep 22
Delta Logo
11:19 am - 8:01 pm
MLI
-
EYW
7h 42m
1 stop
Delta Logo
6:19 pm - 10:30 pm
EYW
-
MLI
5h 11m
1 stop
$329Delta
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
6:00 am - 4:18 pm
PIA
-
EYW
9h 18m
2 stops
American Airlines Logo
4:50 pm - 10:59 pm
EYW
-
PIA
7h 09m
1 stop
$334American Airlines
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
6:00 am - 4:18 pm
PIA
-
EYW
9h 18m
2 stops
American Airlines Logo
1:49 pm - 11:59 pm
EYW
-
PIA
11h 10m
2 stops
$339American Airlines
Useful Info

Good to know

Low seasonSeptember
Cheapest flight$120
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 3% 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)