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Cheap flights from Illinois to Key West from $127

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Key West departing on 2/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Illinois to Key West

Cheap round-trip flights

These are some of the best round-trip flight deals from Illinois to Key West that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Illinois to Key West.

Cheap last minute flights

Planning a quick getaway from Illinois to Key West? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Key West, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Illinois to Key West

Find recent round-trip train or bus tickets from Illinois to Key West.

All round-trip flight deals to Key West

The cheapest plane tickets to Key West found on KAYAK recently.
6:00 am - 3:30 pmSTL-EYW
8h 30m1 stop
2:21 pm - 8:09 pmEYW-STL
6h 48m1 stop
$199American Airlines
Find Deal
mié., ene. 29 - mié., feb. 5
7:20 am - 4:37 pmSTL-EYW
8h 17m2 stops
2:21 pm - 8:09 pmEYW-STL
6h 48m1 stop
$204American Airlines
Find Deal
mié., ene. 29 - mié., feb. 5
9:36 am - 6:51 pmSTL-EYW
8h 15m2 stops
8:09 am - 4:20 pmEYW-STL
9h 11m2 stops
$209American Airlines
Find Deal
mié., ene. 29 - mié., feb. 5
6:00 am - 11:38 amMDW-EYW
4h 38m1 stop
7:00 am - 11:59 amEYW-MDW
5h 59m1 stop
$217Delta
Find Deal
mar., ene. 28 - mar., feb. 4
5:45 am - 11:38 amORD-EYW
4h 53m1 stop
6:16 pm - 11:49 pmEYW-ORD
6h 33m1 stop
$217Delta
Find Deal
mar., ene. 28 - mar., feb. 4
6:04 am - 3:23 pmSTL-EYW
8h 19m1 stop
12:55 pm - 7:33 pmEYW-STL
7h 38m1 stop
$229American Airlines
Find Deal
mar., feb. 18 - jue., feb. 27
4:23 pm - 9:01 amORD-EYW
15h 38m1 stop
3:04 pm - 10:29 pmEYW-ORD
8h 25m1 stop
dom., may. 4 - sáb., may. 10
10:35 am - 2:49 pmORD-EYW
3h 14mnonstop
3:50 pm - 6:21 pmEYW-ORD
3h 31mnonstop
$259United Airlines
Find Deal
mar., ene. 28 - mar., feb. 4
5:05 pm - 2:20 pmSTL-EYW
20h 15m1 stop
3:05 pm - 11:31 pmEYW-STL
9h 26m1 stop
dom., ene. 26 - mié., ene. 29
6:15 am - 4:01 pmSTL-EYW
8h 46m1 stop
4:50 pm - 10:06 pmEYW-STL
6h 16m1 stop
$274United Airlines
Find Deal
jue., ene. 23 - jue., feb. 20
7:00 am - 5:15 pmORD-EYW
9h 15m1 stop
dom., feb. 9
6:52 am - 1:42 pmORD-EYW
5h 50m1 stop
$169American Airlines
Find Deal
mar., jun. 17
5:15 pm - 1:01 pmORD-EYW
18h 46m1 stop
$177Delta
Find Deal
sáb., ene. 25
8:45 am - 6:55 pmORD-EYW
9h 10m1 stop
$186United Airlines
Find Deal
mar., feb. 11
5:01 am - 1:15 pmORD-EYW
7h 14m1 stop
lun., mar. 31
8:30 am - 5:32 pmORD-EYW
8h 02m1 stop
$200American Airlines
Find Deal
sáb., feb. 15
6:25 pm - 6:55 pmORD-EYW
23h 30m1 stop
$206United Airlines
Find Deal
sáb., feb. 8
6:00 am - 7:46 pmORD-EYW
12h 46m2 stops
$207Delta
Find Deal
mar., jun. 17
8:10 am - 5:15 pmORD-EYW
8h 05m1 stop
dom., mar. 9
10:40 am - 11:46 amORD-EYW
24h 06m3 stops
$750Alaska Airlines
Find Deal
lun., mar. 31
5:00 am - 12:17 pmMLI-EYW
6h 17m1 stop
1:45 pm - 9:58 pmEYW-MLI
9h 13m2 stops
$414American Airlines
Find Deal
mar., ene. 14 - dom., ene. 19
5:00 am - 4:37 pmMLI-EYW
10h 37m2 stops
1:45 pm - 9:58 pmEYW-MLI
9h 13m2 stops
$419American Airlines
Find Deal
mar., ene. 14 - dom., ene. 19
8:05 am - 3:30 pmORD-EYW
6h 25m1 stop
1:06 pm - 3:37 pmEYW-ORD
3h 31mnonstop
$429American Airlines
Find Deal
sáb., ene. 11 - jue., ene. 16
5:45 am - 11:38 amORD-EYW
4h 53m1 stop
6:16 pm - 11:59 pmEYW-ORD
6h 43m1 stop
$439Delta
Find Deal
sáb., ene. 11 - sáb., ene. 18
8:15 am - 4:37 pmORD-EYW
7h 22m1 stop
1:06 pm - 3:37 pmEYW-ORD
3h 31mnonstop
$489American Airlines
Find Deal
vie., ene. 10 - mar., ene. 14
9:35 am - 5:21 pmORD-EYW
6h 46m1 stop
3:03 pm - 6:49 pmEYW-ORD
4h 46m1 stop
$499Delta
Find Deal
vie., ene. 10 - mar., ene. 14
8:12 am - 2:29 pmORD-EYW
5h 17m1 stop
1:06 pm - 3:37 pmEYW-ORD
3h 31mnonstop
$509American Airlines
Find Deal
vie., ene. 10 - jue., ene. 16
10:36 am - 2:50 pmORD-EYW
3h 14mnonstop
3:50 pm - 6:21 pmEYW-ORD
3h 31mnonstop
$544United Airlines
Find Deal
sáb., ene. 11 - jue., ene. 16
7:35 am - 4:01 pmORD-EYW
7h 26m1 stop
10:55 am - 10:57 pmEYW-ORD
13h 02m2 stops
$556United Airlines
Find Deal
sáb., ene. 11 - sáb., ene. 18
5:50 am - 5:05 pmORD-EYW
34h 15m3 stops
9:03 am - 11:32 pmEYW-ORD
15h 29m3 stops
dom., ene. 12 - dom., ene. 19
8:06 am - 12:27 pmORD-EYW
3h 21mnonstop
1:01 pm - 3:29 pmEYW-ORD
3h 28mnonstop
$229American Airlines
Find Deal
mar., feb. 25 - mar., mar. 4
10:35 am - 2:49 pmORD-EYW
3h 14mnonstop
3:50 pm - 6:21 pmEYW-ORD
3h 31mnonstop
$259United Airlines
Find Deal
mar., ene. 28 - mié., feb. 5
10:36 am - 2:50 pmORD-EYW
3h 14mnonstop
3:50 pm - 6:21 pmEYW-ORD
3h 31mnonstop
$288United Airlines
Find Deal
dom., ene. 26 - mié., ene. 29
10:35 am - 2:49 pmORD-EYW
3h 14mnonstop
3:50 pm - 6:21 pmEYW-ORD
3h 31mnonstop
$323United Airlines
Find Deal
lun., feb. 3 - mié., feb. 12
10:35 am - 2:49 pmORD-EYW
3h 14mnonstop
3:50 pm - 6:21 pmEYW-ORD
3h 31mnonstop
$328United Airlines
Find Deal
mar., ene. 28 - jue., ene. 30
10:35 am - 2:49 pmORD-EYW
3h 14mnonstop
3:50 pm - 6:21 pmEYW-ORD
3h 31mnonstop
$345United Airlines
Find Deal
mar., feb. 4 - sáb., feb. 8
10:35 am - 2:49 pmORD-EYW
3h 14mnonstop
3:50 pm - 6:21 pmEYW-ORD
3h 31mnonstop
$349United Airlines
Find Deal
mar., ene. 28 - lun., feb. 3
8:10 am - 12:34 pmORD-EYW
3h 24mnonstop
1:06 pm - 3:37 pmEYW-ORD
3h 31mnonstop
$354American Airlines
Find Deal
jue., ene. 30 - mié., feb. 5
8:10 am - 12:34 pmORD-EYW
3h 24mnonstop
1:01 pm - 3:29 pmEYW-ORD
3h 28mnonstop
$357American Airlines
Find Deal
mar., feb. 11 - vie., feb. 14
8:06 am - 12:27 pmORD-EYW
3h 21mnonstop
12:50 pm - 3:27 pmEYW-ORD
3h 37mnonstop
$374American Airlines
Find Deal
mar., mar. 4 - mar., mar. 11

American Airlines flights from Illinois to Key West

Our best American Airlines deals on Illinois to Key West flight tickets
American Airlines
Jan 29
STL6:00 amLambert-St Louis
8h 30m
1 stop
EYW3:30 pmKey West
Feb 5
EYW2:21 pmKey West
6h 48m
1 stop
STL8:09 pmLambert-St Louis
American Airlines
Jan 29
STL7:20 amLambert-St Louis
8h 17m
2 stops
EYW4:37 pmKey West
Feb 5
EYW2:21 pmKey West
6h 48m
1 stop
STL8:09 pmLambert-St Louis
American Airlines
Jan 29
STL9:36 amLambert-St Louis
8h 15m
2 stops
EYW6:51 pmKey West
Feb 5
EYW8:09 amKey West
9h 11m
2 stops
STL4:20 pmLambert-St Louis

Delta flights from Illinois to Key West

Our best Delta deals on Illinois to Key West flight tickets
Delta
Jan 28
MDW6:00 amChicago Midway
4h 38m
1 stop
EYW11:38 amKey West
Feb 4
EYW7:00 amKey West
5h 59m
1 stop
MDW11:59 amChicago Midway
Delta
Jan 28
ORD11:05 amChicago O'Hare Intl
5h 16m
1 stop
EYW5:21 pmKey West
Feb 5
EYW3:03 pmKey West
6h 43m
1 stop
ORD8:46 pmChicago O'Hare Intl
Delta
Jan 24
MDW12:44 pmChicago Midway
6h 27m
1 stop
EYW8:11 pmKey West
Jan 28
EYW12:33 pmKey West
4h 48m
1 stop
MDW4:21 pmChicago Midway

See travel insights to Key West from

How to get the cheapest flight ticket from Illinois 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 Illinois 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 Illinois 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 Illinois is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $383. 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 Illinois to Key West for around $514.

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 Illinois 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 Illinois to Key West flight route?

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

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

Most flyers found that booking tickets 44 days in advance of their planned departure date is the best time to get cheap flights to Key West. During this timeframe, flight prices are around $436. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Illinois for as low as $308 on momondo.

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

There are 4 cabin classes available to choose from on Illinois to Key West flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Illinois to Key West flight deals and tips

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

Best Price Found

$127

Fastest flight time

3h 05m

Direct flights

Every day

Airports in Key West

1 airport
The best one-way flight to Key West from Illinois in the past 72 hours is $127. The best round-trip flight deal from Illinois to Key West found on momondo in the last 72 hours is $199.
The fastest flight from Illinois to Key West takes 3h 05m
Direct flights go from Illinois to Key West every day.
There is 1 airport near Key West: Key West (EYW)

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

    Prices for flights from Illinois to Key West Airport were last updated today.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois 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 Illinois to Key West?


Best airlines flying from Illinois to Key West

Compare and see reviews for airlines that fly from Illinois to Key West with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $216Free CancellationRating
8.0
8,501 reviews
Search Delta flights
American AirlinesPriceFrom $246Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $258Free CancellationRating
7.4
8,942 reviews
Search United Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Key West from Illinois.

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

Yes. momondo allows you to filter the results for Illinois to Key West flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Key West from Illinois.

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

Price alerts on flights to Key West from Illinois 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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