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Cheap flights from St. Louis to Key West from $208

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Key West departing on 1/25. 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 St. Louis to Key West

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis 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 St. Louis to Key West.

Cheap last minute flights

Planning a quick getaway from St. Louis 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 St. Louis to Key West

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

All round-trip flight deals to Key West

The cheapest plane tickets to Key West found on KAYAK recently.
7:00 am - 4:25 pmSTL-EYW
8h 25m1 stop
4:23 pm - 11:46 pmEYW-STL
8h 23m1 stop
$208American Airlines
Find Deal
Sat, Jan 25 - Tue, Jan 28
6:00 am - 4:37 pmSTL-EYW
9h 37m2 stops
4:23 pm - 11:46 pmEYW-STL
8h 23m1 stop
$213American Airlines
Find Deal
Sat, Jan 25 - Tue, Jan 28
7:18 am - 4:37 pmSTL-EYW
8h 19m2 stops
1:45 pm - 10:09 pmEYW-STL
9h 24m2 stops
$218American Airlines
Find Deal
Wed, Jan 29 - Wed, Feb 5
7:08 am - 4:19 pmSTL-EYW
8h 11m1 stop
7:59 pm - 11:51 pmEYW-STL
4h 52m1 stop
$233American Airlines
Find Deal
Tue, Dec 17 - Mon, Dec 23
5:45 am - 4:36 pmSTL-EYW
9h 51m2 stops
4:10 pm - 9:53 pmEYW-STL
6h 43m1 stop
$238American Airlines
Find Deal
Tue, Dec 17 - Mon, Dec 23
12:52 pm - 8:11 pmSTL-EYW
6h 19m1 stop
7:00 am - 11:47 amEYW-STL
5h 47m1 stop
$258Delta
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Fri, Jan 24 - Thu, Jan 30
1:00 pm - 8:30 pmSTL-EYW
6h 30m1 stop
1:55 pm - 9:05 pmEYW-STL
8h 10m1 stop
$273Delta
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Wed, Mar 19 - Tue, Mar 25
6:25 am - 3:13 pmSTL-EYW
7h 48m1 stop
7:40 pm - 2:14 pmEYW-STL
19h 34m2 stops
$382United Airlines
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Mon, Jan 6 - Fri, Jan 10
4:28 pm - 9:33 amSTL-EYW
16h 05m2 stops
5:55 pm - 2:43 pmEYW-STL
21h 48m2 stops
Thu, Jan 16 - Mon, Jan 20
8:40 am - 1:15 pmSTL-EYW
27h 35m2 stops
10:00 am - 10:00 pmEYW-STL
13h 00m2 stops
$424United Airlines
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Mon, Feb 17 - Fri, Feb 21
10:59 am - 5:21 pmSTL-EYW
5h 22m1 stop
$209Delta
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Sun, Jan 26
5:44 am - 3:43 pmSTL-EYW
8h 59m2 stops
$234American Airlines
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Sun, Jan 26
6:00 am - 1:18 pmSTL-EYW
6h 18m1 stop
$357Delta
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Sun, Dec 1
6:00 am - 1:18 pmSTL-EYW
6h 18m1 stop
$429Delta
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Sun, Dec 1
5:00 am - 1:09 pmSTL-EYW
7h 09m2 stops
$449American Airlines
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Sun, Dec 1
5:45 am - 3:20 pmSTL-EYW
8h 35m2 stops
$529American Airlines
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Sun, Dec 1
1:09 pm - 8:30 pmSTL-EYW
6h 21m1 stop
6:13 pm - 11:41 pmEYW-STL
6h 28m1 stop
$378Delta
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Wed, Nov 27 - Wed, Dec 4
5:45 am - 2:25 pmSTL-EYW
7h 40m2 stops
11:57 am - 4:10 pmEYW-STL
5h 13m1 stop
$383American Airlines
Find Deal
Wed, Nov 27 - Wed, Dec 4
5:45 am - 12:25 pmSTL-EYW
5h 40m1 stop
12:55 pm - 8:32 pmEYW-STL
8h 37m1 stop
$388American Airlines
Find Deal
Wed, Nov 27 - Sat, Nov 30
5:45 am - 2:25 pmSTL-EYW
7h 40m2 stops
7:26 pm - 11:57 pmEYW-STL
5h 31m1 stop
$393American Airlines
Find Deal
Wed, Nov 27 - Sat, Nov 30
10:01 am - 6:47 pmSTL-EYW
7h 46m2 stops
8:01 am - 3:14 pmEYW-STL
8h 13m2 stops
$398American Airlines
Find Deal
Wed, Nov 27 - Sat, Nov 30
5:00 am - 11:56 amSTL-EYW
5h 56m1 stop
7:26 pm - 11:57 pmEYW-STL
5h 31m1 stop
$799American Airlines
Find Deal
Thu, Nov 28 - Sun, Dec 1
6:30 am - 6:55 pmSTL-EYW
11h 25m2 stops
7:40 pm - 11:30 pmEYW-STL
28h 50m2 stops
$846United Airlines
Find Deal
Thu, Nov 28 - Sun, Dec 1
7:05 am - 3:04 pmSTL-EYW
6h 59m2 stops
7:26 pm - 11:57 pmEYW-STL
5h 31m1 stop
$894American Airlines
Find Deal
Thu, Nov 28 - Sun, Dec 1
6:15 am - 10:10 amSTL-EYW
26h 55m3 stops
7:40 pm - 11:30 pmEYW-STL
28h 50m2 stops
$1,111United Airlines
Find Deal
Thu, Nov 28 - Sun, Dec 1

United Airlines flights from St. Louis to Key West

Our best United Airlines deals on St. Louis to Key West flight tickets
United Airlines
Jan 6
STL6:25 amLambert-St Louis
7h 48m
1 stop
EYW3:13 pmKey West
Jan 10
EYW7:40 pmKey West
19h 34m
2 stops
STL2:14 pmLambert-St Louis
United Airlines
Feb 17
STL8:40 amLambert-St Louis
27h 35m
2 stops
EYW1:15 pmKey West
Feb 21
EYW10:00 amKey West
13h 00m
2 stops
STL10:00 pmLambert-St Louis
United Airlines
Jan 18
STL12:41 pmLambert-St Louis
20h 29m
2 stops
EYW10:10 amKey West
Jan 21
EYW7:40 pmKey West
19h 34m
2 stops
STL2:14 pmLambert-St Louis

Delta flights from St. Louis to Key West

Our best Delta deals on St. Louis to Key West flight tickets
Delta
Jan 24
STL12:52 pmLambert-St Louis
6h 19m
1 stop
EYW8:11 pmKey West
Jan 30
EYW7:00 amKey West
5h 47m
1 stop
STL11:47 amLambert-St Louis
Delta
Mar 19
STL1:00 pmLambert-St Louis
6h 30m
1 stop
EYW8:30 pmKey West
Mar 25
EYW1:55 pmKey West
8h 10m
1 stop
STL9:05 pmLambert-St Louis
Delta
Dec 11
STL6:00 amLambert-St Louis
6h 24m
1 stop
EYW1:24 pmKey West
Dec 14
EYW6:30 pmKey West
6h 13m
1 stop
STL11:43 pmLambert-St Louis

See travel insights to Key West from

How to get the cheapest flight ticket from St. Louis 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 typical price of a round-trip flight between St. Louis and Key West?

What is the cheapest month to fly to Key West?

In general, January is the cheapest month to fly from St. Louis to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $306. If you are unable to visit Key West during the month of January, then departing from St. Louis during the month September is also very affordable. Most momondo users find prices during this month for around $365.

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 St. Louis is on a Friday. momondo users have found tickets for Friday departures for as low as $384. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Key West for around $557.

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 in the evening. momondo users have found flights departing from St. Louis to Key West in the evening for as low as $0. 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 afternoon, with an average ticket price of $470. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

Most flyers found that booking tickets 52 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 $451. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from St. Louis for as low as $226 on momondo.

Can stopping save me money on St. Louis to Key West flights?

You could potentially save up to 10% on your flight if you consider stops on a St. Louis to Key West flight.

When to book flights from St. Louis to Key West

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

Cheap St. Louis to Key West (STL to EYW) flight deals and tips

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

Best Price Found

$209

Fastest flight time

4h 37m

Direct flights

None

Airports in Key West

1 airport
The best one-way flight to Key West from St. Louis in the past 72 hours is $209. The best round-trip flight deal from St. Louis to Key West found on momondo in the last 72 hours is $208.
The fastest flight from St. Louis to Key West takes 4h 37m
There are no direct flights from St. Louis to Key West. Popular non-direct route for this connection is Lambert-St Louis Airport - Key West Airport.
There is 1 airport near Key West: Key West (EYW)

  • How far is Lambert-St Louis to Key West by plane?

    A flight from Lambert-St Louis to Key West will travel around 1088.7 mi. 4h 37m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Key West Airport?

    Prices for flights from Lambert-St Louis Airport to Key West Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Key West Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Key West Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Key West Airport.

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

    The necessary travel and health documents for your Key West Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Key West?


Best airlines flying from St. Louis to Key West

Compare and see reviews for airlines that fly from St. Louis to Key West with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $222Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $257Free CancellationRating
8.0
8,734 reviews
Search Delta flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
9,156 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Key West?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Key West for you.

Can I find flights from St. Louis to Key West with flexible booking policies on momondo?

Flights from St. Louis to Key West with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Key West?

Once you have performed a search for St. Louis to Key West flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for St. Louis to Key West flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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