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.

$119 CHEAP FLIGHTS from Illinois to Key West

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Cheap Flights from Illinois to Key West

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Key West

Sat, Oct 24 - Wed, Oct 28

4:30 pm - 10:19 amSTL Lambert-St Louis-EYW Key West

16h 49m1 stop Orlando

10:04 am - 5:40 pmEYW Key West-STL Lambert-St Louis

8h 36m2 stops Tampa Atlanta Hartsfield-Jackson

$233Multiple Airlines

Sun, Oct 25 - Thu, Oct 29

8:08 pm - 8:44 amBMI Bloomington-Normal-EYW Key West

11h 36m1 stop Orlando Sanford Intl

8:37 am - 8:04 amEYW Key West-BMI Bloomington-Normal

24h 27m1 stop Tampa St. Petersburg

$251Allegiant Air

Thu, Oct 1 - Tue, Oct 6

6:39 pm - 10:19 amSTL Lambert-St Louis-EYW Key West

14h 40m1 stop Orlando

1:16 pm - 1:10 pmEYW Key West-STL Lambert-St Louis

24h 54m2 stops Tampa Atlanta Hartsfield-Jackson

$259Multiple Airlines

Tue, Sep 29 - Tue, Oct 6

10:05 am - 5:23 pmSTL Lambert-St Louis-EYW Key West

6h 18m1 stop Atlanta Hartsfield-Jackson

2:00 pm - 6:15 pmEYW Key West-STL Lambert-St Louis

5h 15m1 stop Atlanta Hartsfield-Jackson

$303Delta

Tue, Sep 29 - Tue, Oct 6

8:43 am - 5:55 pmSTL Lambert-St Louis-EYW Key West

8h 12m1 stop Charlotte Douglas

2:34 pm - 7:48 pmEYW Key West-STL Lambert-St Louis

6h 14m1 stop Dallas/Fort Worth

$303American Airlines

Tue, Dec 1 - Sat, Dec 5

7:26 am - 4:35 pmSTL Lambert-St Louis-EYW Key West

8h 09m1 stop Chicago O'Hare Intl

4:49 pm - 11:59 pmEYW Key West-STL Lambert-St Louis

8h 10m1 stop Chicago O'Hare Intl

$303American Airlines

Wed, Oct 28 - Sat, Oct 31

6:09 am - 1:54 pmSTL Lambert-St Louis-EYW Key West

6h 45m1 stop Newark

2:50 pm - 10:54 pmEYW Key West-STL Lambert-St Louis

9h 04m1 stop Newark

$321United Airlines

Wed, Oct 28 - Sat, Oct 31

8:30 am - 3:29 pmSTL Lambert-St Louis-EYW Key West

5h 59m1 stop Chicago O'Hare Intl

2:50 pm - 10:54 pmEYW Key West-STL Lambert-St Louis

9h 04m1 stop Newark

$321United Airlines

Sat, Oct 24 - Wed, Oct 28

12:13 pm - 8:01 pmBMI Bloomington-Normal-EYW Key West

6h 48m1 stop Atlanta Hartsfield-Jackson

6:10 pm - 10:36 pmEYW Key West-BMI Bloomington-Normal

5h 26m1 stop Atlanta Hartsfield-Jackson

$329Delta

Wed, Jan 20 - Wed, Jan 27

12:00 pm - 7:43 pmBMI Bloomington-Normal-EYW Key West

6h 43m1 stop Atlanta Hartsfield-Jackson

7:00 am - 11:17 amEYW Key West-BMI Bloomington-Normal

5h 17m1 stop Atlanta Hartsfield-Jackson

$329Delta

Recent last minute flight deals from Illinois to Key West

Tue, Sep 1 - Sun, Sep 6

1:59 pm - 11:06 amORD Chicago O'Hare Intl-EYW Key West

20h 07m2 stops Atlanta Hartsfield-Jackson Tampa

12:05 pm - 11:08 pmEYW Key West-ORD Chicago O'Hare Intl

12h 03m1 stop Orlando

$371Multiple Airlines

Sat, Sep 5 - Tue, Sep 8

7:44 pm - 11:25 amORD Chicago O'Hare Intl-EYW Key West

14h 41m1 stop Orlando

1:14 pm - 6:23 pmEYW Key West-ORD Chicago O'Hare Intl

30h 09m2 stops Tampa Atlanta Hartsfield-Jackson

$414Multiple Airlines

Tue, Sep 1 - Thu, Sep 3

2:41 pm - 11:06 amORD Chicago O'Hare Intl-EYW Key West

19h 25m2 stops Denver Intl Tampa

12:05 pm - 11:08 pmEYW Key West-ORD Chicago O'Hare Intl

12h 03m1 stop Orlando

$422Multiple Airlines

Wed, Sep 2 - Wed, Sep 9

5:00 am - 1:08 pmORD Chicago O'Hare Intl-EYW Key West

7h 08m1 stop Miami

2:15 pm - 7:38 pmEYW Key West-ORD Chicago O'Hare Intl

6h 23m1 stop Charlotte Douglas

$455American Airlines

Wed, Sep 2 - Wed, Sep 9

6:05 am - 1:00 pmMDW Chicago Midway-EYW Key West

5h 55m1 stop Atlanta Hartsfield-Jackson

6:19 pm - 10:44 pmEYW Key West-MDW Chicago Midway

5h 25m1 stop Atlanta Hartsfield-Jackson

$455Delta

Thu, Sep 3 - Thu, Sep 10

5:05 am - 12:55 pmORD Chicago O'Hare Intl-EYW Key West

6h 50m1 stop Charlotte Douglas

1:47 pm - 6:07 pmEYW Key West-ORD Chicago O'Hare Intl

5h 20m1 stop Miami

$474American Airlines

Thu, Sep 3 - Thu, Sep 10

6:40 am - 1:00 pmORD Chicago O'Hare Intl-EYW Key West

5h 20m1 stop Atlanta Hartsfield-Jackson

11:42 am - 6:41 pmEYW Key West-ORD Chicago O'Hare Intl

7h 59m1 stop Atlanta Hartsfield-Jackson

$474Delta

Wed, Sep 2 - Wed, Sep 9

11:59 am - 4:18 pmORD Chicago O'Hare Intl-EYW Key West

3h 19mnonstop

1:47 pm - 7:38 pmEYW Key West-ORD Chicago O'Hare Intl

6h 51m1 stop Miami

$484American Airlines

Fri, Sep 4 - Thu, Sep 10

8:00 am - 1:29 pmSTL Lambert-St Louis-EYW Key West

28h 29m2 stops Chicago O'Hare Intl Newark

2:20 pm - 8:47 pmEYW Key West-STL Lambert-St Louis

7h 27m1 stop Newark

$755United Airlines

Tue, Sep 1 - Thu, Sep 3

5:00 am - 1:29 pmORD Chicago O'Hare Intl-EYW Key West

7h 29m1 stop Newark

2:15 pm - 8:07 pmEYW Key West-ORD Chicago O'Hare Intl

6h 52m1 stop Newark

$996United Airlines

Useful Info

Low season	September
High season	February
Cheapest flight	$119

Best time to beat the crowds but there is an average 6% increase in price.

Most popular time to fly with an average 1% increase in price.

Flight from St. Louis 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.

Little Torch Key

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Key West (EYW)

EYW

$119 Find Cheap Flights from Illinois to Key West - Compare and Save

Cheap Flights from Illinois to Key West

Recent round-trip flight deals from Illinois to Key West

Recent one-way flight deals from Illinois to Key West

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Recent direct flight deals from Illinois to Key West

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FAQs for booking flights from Illinois to Key West

Traveling to a place near Key West?

Everything you need to know for your flight to Key West

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

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Complete your trip to Key West with a hotel stay or car rental

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