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Cheap flights from Chicago to Key West from $156

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Key West departing on 6/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Chicago to Key West

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Chicago to Key West.
Delta Logo
5:30 am - 12:56 pmORD-EYW
6h 26m1 stop
Delta Logo
6:25 pm - 11:17 pmEYW-ORD
5h 52m1 stop
$249Delta
Find Deal
Tue, May 20 - Sat, May 24
Delta Logo
1:30 pm - 8:07 pmORD-EYW
5h 37m1 stop
Delta Logo
6:25 pm - 11:58 pmEYW-ORD
6h 33m1 stop
$269Delta
Find Deal
Sat, May 10 - Wed, May 21
Delta Logo
5:30 am - 12:56 pmORD-EYW
6h 26m1 stop
Delta Logo
6:25 pm - 11:17 pmEYW-ORD
5h 52m1 stop
$289Delta
Find Deal
Tue, May 20 - Sat, May 24
 Logo
5:05 am - 6:05 pmORD-EYW
12h 00m1 stop
 Logo
8:45 am - 12:05 amEYW-ORD
16h 20m1 stop
Tue, May 20 - Sat, May 24
 Logo
1:18 pm - 8:00 amORD-EYW
17h 42m1 stop
 Logo
1:00 pm - 11:20 pmEYW-ORD
11h 20m1 stop
Fri, Jun 6 - Fri, Jun 13
 Logo
1:18 pm - 8:00 amORD-EYW
17h 42m1 stop
 Logo
1:00 pm - 11:20 pmEYW-ORD
11h 20m1 stop
Fri, Jun 6 - Fri, Jun 13
American Airlines Logo
5:15 am - 1:06 pmORD-EYW
6h 51m2 stops
American Airlines Logo
12:11 pm - 5:55 pmEYW-ORD
6h 44m1 stop
$328American Airlines
Find Deal
Wed, Oct 1 - Sat, Oct 4
American Airlines Logo
8:05 am - 12:19 pmORD-EYW
3h 14mnonstop
American Airlines Logo
7:29 pm - 11:56 pmEYW-ORD
5h 27m1 stop
$337American Airlines
Find Deal
Tue, May 20 - Tue, May 27
United Airlines Logo
5:56 pm - 8:00 amORD-EYW
13h 04m2 stops
United Airlines Logo
6:45 pm - 9:34 amEYW-ORD
15h 49m1 stop
$370United Airlines
Find Deal
Tue, Jul 1 - Thu, Jul 3
United Airlines Logo
7:00 am - 6:05 pmORD-EYW
10h 05m1 stop
United Airlines Logo
6:45 pm - 9:34 amEYW-ORD
15h 49m1 stop
$373United Airlines
Find Deal
Tue, Jul 1 - Mon, Jul 7

Delta flights from Chicago to Key West

Our best Delta deals on Chicago to Key West flight tickets
Delta
May 20
ORD5:30 amChicago O'Hare Intl
6h 26m
1 stop
EYW12:56 pmKey West
May 24
EYW6:25 pmKey West
5h 52m
1 stop
ORD11:17 pmChicago O'Hare Intl
Delta
May 10
ORD1:30 pmChicago O'Hare Intl
5h 37m
1 stop
EYW8:07 pmKey West
May 21
EYW6:25 pmKey West
6h 33m
1 stop
ORD11:58 pmChicago O'Hare Intl
Delta
May 20
ORD5:30 amChicago O'Hare Intl
6h 26m
1 stop
EYW12:56 pmKey West
May 24
EYW6:25 pmKey West
5h 52m
1 stop
ORD11:17 pmChicago O'Hare Intl

American Airlines flights from Chicago to Key West

Our best American Airlines deals on Chicago to Key West flight tickets
American Airlines
Oct 1
ORD5:15 amChicago O'Hare Intl
6h 51m
2 stops
EYW1:06 pmKey West
Oct 4
EYW12:11 pmKey West
6h 44m
1 stop
ORD5:55 pmChicago O'Hare Intl
American Airlines
May 20
ORD8:05 amChicago O'Hare Intl
3h 14m
EYW12:19 pmKey West
May 27
EYW7:29 pmKey West
5h 27m
1 stop
ORD11:56 pmChicago O'Hare Intl
American Airlines
Jul 4
ORD5:35 pmChicago O'Hare Intl
16h 22m
2 stops
EYW10:57 amKey West
Jul 8
EYW2:44 pmKey West
7h 41m
1 stop
ORD9:25 pmChicago O'Hare Intl

See travel insights to Key West from

How to get the cheapest flight ticket from Chicago to Key West

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Key West?

In general, August is the cheapest month to fly from Chicago to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $358. If you are unable to visit Key West during the month of August, then departing from Chicago during the month September is also very affordable. Most momondo users find prices during this month for around $378.

What is the cheapest day to depart on your flight to Key West?

On average, the least expensive day to fly to Key West from Chicago is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $362. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Chicago to Key West for around $561.

What is the cheapest time of day to depart on your flight to Key West?

According to our data, the cheapest time of day to fly to Key West is at noon. momondo users have found flights departing from Chicago to Key West at noon for as low as $338. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Key West are more costly in the evening, with an average ticket price of $822. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Chicago to Key West flight route?

Fly from Chicago O'Hare Intl to Key West for the best Chicago - Key West flight prices

How far in advance should I book a flight to Key West?

You are more likely to see cheaper flights to Key West from Chicago when booking 7 weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $427 when searching 7 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Chicago for as low as $380 on momondo.

What cabin class options are available on Chicago to Key West flights?

There are 3 cabin classes available to choose from on Chicago to Key West flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Chicago to Key West flight prices changed over time?

As of April 2025, prices for Chicago to Key West flights are approximately 9% cheaper when compared to flights at the same time last year.

When to book flights from Chicago to Key West

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Key West according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Key West (CHI to EYW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Key West

Best Price Found

$156

Fastest flight time

3h 05m

Direct flights

Every day

Airports in Key West

1 airport
The best one-way flight to Key West from Chicago in the past 72 hours is $156. The best round-trip flight deal from Chicago to Key West found on momondo in the last 72 hours is $249.
The fastest flight from Chicago to Key West takes 3h 05m
Direct flights go from Chicago to Key West every day.
There is 1 airport near Key West: Key West (EYW)

  • How far is Chicago to Key West by plane?

    The distance between Chicago and Key West is about 1241.6 mi. 3h 11m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Chicago to Key West Airport?

    Prices for flights from Chicago to Key West Airport refresh daily.

  • How many operators does momondo search for flights from Chicago to Key West Airport?

  • How old do you have to be to fly from Chicago to Key West Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

    The travel and health documents you'll need for your trip to Key West Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Key West Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago to Key West?

  • What is the most popular airline from Chicago to Key West?


Best airlines flying from Chicago to Key West

Compare and see reviews for airlines that fly from Chicago to Key West with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $216Free CancellationRating
8.0
7,920 reviews
Search Delta flights
American AirlinesPriceFrom $260Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $262Free CancellationRating
7.4
8,685 reviews
Search United Airlines flights
  • United Airlines Flights From Chicago to Key West

    United Airlines flight deals from Chicago to Key West start from $262 round-trip. Over the 7 United Airlines flights for this route in a normal week, average airfare is usually $467 round-trip - but some users have found much cheaper deals with momondo.

  • American Airlines Flights From Chicago to Key West

    Across 10,000 American Airlines reviews on momondo, the average score is 7.2/10. American Airlines flies from Chicago to Key West about 7 times each week, with ticket deals ranging from $260 to $433. Price data is based on momondo searches in the last 72 hours.


Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key
Little Torch Key

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Key West?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Key West. momondo saves you time and could save you money on your trip.

Can I find flights from Chicago to Key West with flexible booking policies on momondo?

momondo does allow users to show only those flights to Key West from Chicago which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Chicago to Key West?

momondo provides multiple filters to help you find the best flight to Key West from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Chicago to Key West right now. Can momondo alert me if prices change?

Price alerts on flights to Key West from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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