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>

$84 CHEAP FLIGHTS from Illinois to Key West

EYW

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

...and more

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41,299,237 searches in the past 7 days on KAYAK

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Cheapest round-trip

$223

Overall average: $536

United Airlines

Wed 3/18Wed 3/25

STL - EYW • 1 stop

Cheapest non-stop

$306

Typical prices: $418-$804

United Airlines

Wed 3/11Mon 3/16

ORD - EYW • Non-stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Key West!

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

Wed, Mar 18 - Wed, Mar 25

7:00 am - 5:45 pm

STL

EYW

9h 45m

1 stop

4:05 pm - 9:07 pm

EYW

STL

6h 02m

1 stop

$223United Airlines

Mon, Mar 9 - Thu, Mar 12

2:09 pm - 12:21 pm

STL

EYW

21h 12m

2 stops

9:46 am - 11:19 pm

EYW

STL

14h 33m

1 stop

$225Multiple Airlines

Thu, Mar 5 - Wed, Mar 11

1:34 pm - 10:37 pm

STL

EYW

8h 03m

1 stop

6:49 pm - 11:44 pm

EYW

STL

5h 55m

1 stop

$251American Airlines

Thu, Mar 5 - Wed, Mar 11

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

Sun, Jun 28 - Fri, Jul 3

6:01 am - 12:23 pm

BMI

EYW

5h 22m

1 stop

7:00 am - 11:11 am

EYW

BMI

5h 11m

1 stop

$289Delta

Sat, Feb 28 - Wed, Mar 4

5:49 pm - 3:23 pm

MLI

EYW

20h 34m

1 stop

12:40 pm - 7:58 am

EYW

MLI

20h 18m

1 stop

$290Allegiant Air

Tue, Mar 3 - Sat, Mar 7

10:49 am - 5:01 pm

MDW

EYW

5h 12m

1 stop

5:56 pm - 10:31 pm

EYW

MDW

5h 35m

1 stop

$298Delta

Sat, Apr 4 - Wed, Apr 8

12:45 pm - 11:30 am

ORD

EYW

21h 45m

3 stops

12:25 pm - 5:15 pm

EYW

ORD

5h 50m

1 stop

$300Spirit Airlines

Fri, Mar 13 - Tue, Mar 17

5:05 am - 1:37 pm

ORD

EYW

7h 32m

1 stop

12:25 pm - 5:15 pm

EYW

ORD

5h 50m

1 stop

$301Spirit Airlines

Wed, Mar 4 - Wed, Mar 11

1:05 pm - 3:24 pm

MLI

EYW

25h 19m

1 stop

12:40 pm - 8:23 am

EYW

MLI

20h 43m

1 stop

$320Allegiant Air

Useful Info

Low season	September
High season	March
Cheapest flight	$84

Best time to beat the crowds with an average 7% drop in price.

Most popular time to fly with an average 12% 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

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

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

Key West (EYW)

EYW

$84 Find Cheap Flights from Illinois to Key West

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

Everything you should know

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