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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

$94 CHEAP FLIGHTS from Illinois to Key West

EYW

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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

Tue, Mar 24 - Wed, Apr 1

12:04 pm - 7:41 pm

STL

EYW

6h 37m

1 stop

6:25 pm - 11:58 pm

EYW

STL

6h 33m

1 stop

$223Delta

Wed, Mar 18 - Wed, Mar 25

11:22 am - 7:12 pm

STL

EYW

6h 50m

1 stop

6:49 pm - 11:44 pm

EYW

STL

5h 55m

1 stop

$251American Airlines

Wed, Mar 18 - Wed, Mar 25

1:34 pm - 10:37 pm

STL

EYW

8h 03m

1 stop

7:45 am - 3:35 pm

EYW

STL

8h 50m

2 stops

$256American Airlines

Tue, Mar 24 - Wed, Apr 1

11:27 am - 11:11 am

STL

EYW

22h 44m

2 stops

11:51 am - 11:25 pm

EYW

STL

12h 34m

1 stop

$262Multiple Airlines

Fri, Aug 21 - Tue, Aug 25

1:21 pm - 10:11 pm

PIA

EYW

7h 50m

1 stop

7:00 am - 1:41 pm

EYW

PIA

7h 41m

1 stop

$289United Airlines

Sat, Apr 25 - Wed, Apr 29

5:17 pm - 3:48 pm

MLI

EYW

21h 31m

1 stop

12:39 pm - 8:34 am

EYW

MLI

20h 55m

1 stop

$295Allegiant Air

Sat, May 16 - Fri, May 22

5:47 pm - 1:07 pm

MLI

EYW

18h 20m

1 stop

4:36 pm - 8:42 am

EYW

MLI

17h 06m

1 stop

$296Allegiant Air

Fri, Apr 10 - Mon, Apr 13

5:05 am - 1:37 pm

ORD

EYW

7h 32m

1 stop

2:35 pm - 11:17 am

EYW

ORD

21h 42m

1 stop

$296Spirit Airlines

Fri, Apr 3 - Mon, Apr 13

5:05 am - 1:37 pm

ORD

EYW

7h 32m

1 stop

2:35 pm - 11:17 am

EYW

ORD

21h 42m

1 stop

$298Spirit Airlines

Thu, Apr 16 - Thu, Apr 23

6:30 am - 4:42 pm

MLI

EYW

9h 12m

2 stops

3:47 pm - 9:07 pm

EYW

MLI

6h 20m

1 stop

$344United Airlines

Useful Info

Low season	September
High season	March
Cheapest flight	$94

Best time to beat the crowds with an average 8% drop in price.

Most popular time to fly with an average 9% increase in price.

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.

Little Torch Key

Everything you need to know for your flight to Key West

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Cabin class

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Origins

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

Key West (EYW)

EYW

$94 Find Cheap Flights from Illinois to Key West

KAYAK searches hundreds of travel sites at once for deals on flights to Key West

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

Recent last minute flight deals from Illinois to Key West

Recent direct flight deals from Illinois to Key West

Good to know

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?

Everything you need to know for your flight to Key West

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

Cabin class types available on flights to Illinois

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

Find direct flights for Key West

Flights to other popular destinations

Flights from domestic origins to Key West

Choose which airport to fly into in Key West

Find deals for your return flight