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.

$110 CHEAP FLIGHTS from Illinois to Key West

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals

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

Tue, Jan 26 - Mon, Feb 1

12:31 pm - 4:20 pmPIA Greater Peoria-EYW Key West

26h 49m1 stop Tampa St. Petersburg

3:31 pm - 11:41 amEYW Key West-PIA Greater Peoria

21h 10m1 stop Tampa St. Petersburg

$229Allegiant Air

Sun, Jan 24 - Wed, Jan 27

9:01 am - 2:35 pmPIA Greater Peoria-EYW Key West

4h 34m1 stop Tampa St. Petersburg

5:10 pm - 8:11 amEYW Key West-PIA Greater Peoria

16h 01m1 stop Tampa St. Petersburg

$233Allegiant Air

Sun, Jan 17 - Thu, Jan 21

8:19 pm - 10:19 amBMI Bloomington-Normal-EYW Key West

13h 00m1 stop Orlando Sanford Intl

12:06 pm - 7:54 amEYW Key West-BMI Bloomington-Normal

20h 48m1 stop Tampa

$234Multiple Airlines

Fri, Jan 1 - Wed, Jan 6

6:41 am - 4:06 pmMLI Moline Quad-City-EYW Key West

8h 25m1 stop Charlotte Douglas

1:52 pm - 7:19 pmEYW Key West-MLI Moline Quad-City

6h 27m1 stop Charlotte Douglas

$359American Airlines

Mon, Dec 21 - Fri, Dec 25

6:10 am - 3:23 pmMLI Moline Quad-City-EYW Key West

8h 13m1 stop Chicago O'Hare Intl

4:04 pm - 10:40 pmEYW Key West-MLI Moline Quad-City

7h 36m1 stop Chicago O'Hare Intl

$359United Airlines

Fri, Dec 11 - Wed, Dec 16

7:00 am - 11:24 amORD Chicago O'Hare Intl-EYW Key West

3h 24mnonstop

12:05 pm - 2:55 pmEYW Key West-ORD Chicago O'Hare Intl

3h 50mnonstop

$361United Airlines

Fri, Jan 1 - Wed, Jan 6

6:41 am - 4:06 pmMLI Moline Quad-City-EYW Key West

8h 25m1 stop Charlotte Douglas

1:52 pm - 12:19 amEYW Key West-MLI Moline Quad-City

11h 27m2 stops Charlotte Douglas Chicago O'Hare Intl

$364American Airlines

Tue, Feb 2 - Tue, Feb 9

5:42 am - 3:46 pmPIA Greater Peoria-EYW Key West

9h 04m2 stops Chicago O'Hare Intl Miami

1:52 pm - 6:47 pmEYW Key West-PIA Greater Peoria

5h 55m1 stop Charlotte Douglas

$364American Airlines

Mon, Jan 25 - Tue, Feb 2

12:16 pm - 8:48 pmBMI Bloomington-Normal-EYW Key West

7h 32m1 stop Atlanta Hartsfield-Jackson

7:30 am - 11:33 amEYW Key West-BMI Bloomington-Normal

5h 03m1 stop Atlanta Hartsfield-Jackson

$369Delta

Sun, Jan 24 - Tue, Feb 2

12:16 pm - 8:48 pmBMI Bloomington-Normal-EYW Key West

7h 32m1 stop Atlanta Hartsfield-Jackson

5:00 pm - 10:26 pmEYW Key West-BMI Bloomington-Normal

6h 26m1 stop Atlanta Hartsfield-Jackson

$369Delta

Recent last minute flight deals from Illinois to Key West

Thu, Nov 5 - Mon, Nov 23

7:55 am - 9:24 amORD Chicago O'Hare Intl-EYW Key West

48h 29m2 stops Fort Lauderdale Tampa

12:59 pm - 12:43 amEYW Key West-ORD Chicago O'Hare Intl

12h 44m1 stop Tampa

$388Multiple Airlines

Sat, Oct 31 - Tue, Nov 3

9:51 am - 11:19 amORD Chicago O'Hare Intl-EYW Key West

24h 28m1 stop Orlando

1:16 pm - 6:30 pmEYW Key West-ORD Chicago O'Hare Intl

30h 14m2 stops Tampa Atlanta Hartsfield-Jackson

$388Multiple Airlines

Sat, Oct 31 - Wed, Nov 4

9:51 am - 11:19 amORD Chicago O'Hare Intl-EYW Key West

24h 28m1 stop Orlando

10:04 am - 6:30 pmEYW Key West-ORD Chicago O'Hare Intl

9h 26m2 stops Tampa Atlanta Hartsfield-Jackson

$389Multiple Airlines

Thu, Nov 5 - Mon, Nov 23

12:10 pm - 4:32 pmORD Chicago O'Hare Intl-EYW Key West

3h 22mnonstop

5:05 pm - 8:01 pmEYW Key West-ORD Chicago O'Hare Intl

3h 56mnonstop

$464American Airlines

Mon, Nov 2 - Thu, Nov 12

6:00 am - 12:53 pmMLI Moline Quad-City-EYW Key West

5h 53m1 stop Atlanta Hartsfield-Jackson

6:08 pm - 11:08 pmEYW Key West-MLI Moline Quad-City

6h 00m1 stop Atlanta Hartsfield-Jackson

$464Delta

Mon, Nov 2 - Thu, Nov 12

11:08 am - 5:15 pmMLI Moline Quad-City-EYW Key West

5h 07m1 stop Atlanta Hartsfield-Jackson

6:08 pm - 11:08 pmEYW Key West-MLI Moline Quad-City

6h 00m1 stop Atlanta Hartsfield-Jackson

$464Delta

Mon, Nov 2 - Thu, Nov 12

6:00 am - 5:56 pmMLI Moline Quad-City-EYW Key West

10h 56m2 stops Chicago O'Hare Intl Charlotte Douglas

5:05 pm - 12:07 amEYW Key West-MLI Moline Quad-City

8h 02m1 stop Chicago O'Hare Intl

$469American Airlines

Thu, Nov 5 - Mon, Nov 23

12:10 pm - 4:32 pmORD Chicago O'Hare Intl-EYW Key West

3h 22mnonstop

7:18 pm - 11:59 pmEYW Key West-ORD Chicago O'Hare Intl

5h 41m1 stop Charlotte Douglas

$474American Airlines

Sat, Oct 31 - Tue, Nov 3

10:58 am - 3:29 pmORD Chicago O'Hare Intl-EYW Key West

3h 31mnonstop

4:10 pm - 7:00 pmEYW Key West-ORD Chicago O'Hare Intl

3h 50mnonstop

$511United Airlines

Sat, Oct 31 - Wed, Nov 4

10:58 am - 3:29 pmORD Chicago O'Hare Intl-EYW Key West

3h 31mnonstop

4:10 pm - 7:00 pmEYW Key West-ORD Chicago O'Hare Intl

3h 50mnonstop

$621United Airlines

Useful Info

Low season	September
High season	February
Cheapest flight	$110

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

Most popular time to fly and prices are also 2% lower on average.

Flight from Chicago O'Hare Airport 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.