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STL - EYW

Find cheap flights from St. Louis to Key West from $294

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Key West departing on 6/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 6/3
Mon 6/10

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Key West, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Key West, as well as popular online travel agencies
In the last 7 days travelers have searched 43,693,958 times on KAYAK, and here is why:

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Cheap flight deals from St. Louis to Key West (STL-EYW)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Key West that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:04 am - 1:36 pmSTL-EYW
7h 32m1 stop
5:09 pm - 11:22 pmEYW-STL
7h 13m1 stop
$475American Airlines
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Tue, May 28 - Tue, Jun 4
8:55 am - 2:25 pmSTL-EYW
28h 30m2 stops
11:30 am - 10:15 pmEYW-STL
11h 45m2 stops
$478United Airlines
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Tue, May 28 - Tue, Jun 4
5:04 am - 11:01 amSTL-EYW
4h 57m1 stop
3:48 pm - 11:22 pmEYW-STL
8h 34m2 stops
$480American Airlines
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Tue, May 28 - Tue, Jun 4
5:55 am - 3:26 pmSTL-EYW
8h 31m2 stops
2:40 pm - 7:29 pmEYW-STL
5h 49m1 stop
$481American Airlines
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Sat, Jun 1 - Wed, Jun 5
5:04 am - 3:18 pmSTL-EYW
9h 14m2 stops
11:40 am - 7:30 pmEYW-STL
8h 50m2 stops
$485American Airlines
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Tue, May 28 - Tue, Jun 4
5:30 am - 12:04 pmSTL-EYW
5h 34m1 stop
2:47 pm - 7:20 pmEYW-STL
5h 33m1 stop
$495American Airlines
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Thu, Aug 22 - Tue, Aug 27
6:08 am - 6:10 pmSTL-EYW
11h 02m2 stops
11:20 am - 10:15 pmEYW-STL
11h 55m2 stops
$538United Airlines
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Sat, Jun 8 - Wed, Jun 12
7:10 am - 1:00 pmSTL-EYW
4h 50m1 stop
7:05 am - 11:48 amEYW-STL
5h 43m1 stop
$593Delta
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Mon, Jun 3 - Wed, Jun 5
6:00 am - 1:00 pmSTL-EYW
6h 00m1 stop
11:43 am - 3:57 pmEYW-STL
5h 14m1 stop
$708Delta
Find Deal
Wed, May 15 - Mon, May 20
7:15 am - 1:20 pmSTL-EYW
5h 05m1 stop
6:00 pm - 11:43 pmEYW-STL
6h 43m1 stop
$898Delta
Find Deal
Fri, Jun 7 - Sun, Jun 9

Flights from St. Louis to Key West - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Key West to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. Louis to Key West?

The average price of all flights from St. Louis to Key West clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Key West on a Friday and more expensive on a Sunday. On your return trip to St. Louis, you should consider flying back on a Monday, and avoid Fridays for better deals.

What is the cheapest month to fly from St. Louis to Key West?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Key West, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to Key West is January, where tickets cost $457 on average. On the other hand, the most expensive months are March and December, where the average cost of tickets is $637 and $565 respectively.

How far in advance should I book a flight from St. Louis to Key West?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Key West, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Key West, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 62 days before departure.

Good to know

Low season

April

High season

March

Cheapest flight

$294
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from St. Louis to Key West

When to book flights from St. Louis to Key West

Are your dates flexible? Find out the best times to travel from St. Louis to Key West based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Key West

  • What is the cheapest flight from St. Louis to Key West?

    In the last 3 days, the lowest price for a flight from St. Louis to Key West was $294 for a one-way ticket and $475 for a round-trip.

  • Do I need a passport to fly between St. Louis and Key West?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from St. Louis to Key West?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Key West?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between St. Louis and Key West, with SkyTeam being the most commonly used for this route.

  • What is the most popular layover when flying to Key West from St. Louis?

    Charlotte is the most popular layover city among KAYAK users traveling from St. Louis to Key West.

  • Which is the best airline for flights from St. Louis to Key West, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Key West are Delta and American Airlines. With an average price for the route of $508 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $475 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from St. Louis 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 St. Louis to Key West.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Key West?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Key West from St. Louis 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 St. Louis 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 St. Louis with another airline. Booking your flights between St. Louis and EYW can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis 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 St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 3 airlines serving from St. Louis to Key West

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Key West. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Key West? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10848 reviews
8.2Boarding
7.9Comfort
7.4Food
8.0Entertainment
8.6Crew
Airline reviews

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

10.0 ExcellentDonnel, Apr 2024ATL - EYW
Read more about Delta reviews

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Horrible. This was not first class. This was a connecting flight whi h was late. My original flight never came. I hated the fact that delta gave me a connecting flight from New York to Orlando Florida. No meals and the television screens were not working. There wasn't even any power to charge your phones. This is NOT FIRST CLASS DELTA!!! Do better next time!

They did a fine job. Can't wait to use Delta in the future.

Seat back monitors and outlets were dead and not working.

The experience was good and the flight departed on time and landed early

The flight was delayed but we got to our final destination.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Boarding super slow with people allowed to linger in aisles

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

First time travel in economy and the worst experience I ever had ! Shame on paying 600 dollars to be in a tuna can ! Service was terrible no even water no even class no even matters your flight attendants were lazy and sloppy very bad experience! After all these years traveling in first and once I try this cause I need to go to a destination for an emergency wow shame on you !

There was a group of school age passengers that were very loud and unruly with their chaperones were no where to be found.

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

I liked everything about the flight. The service was excellent!

Delayed a day due to snow storm. Was upgraded. That kind of made up for significant delays from FLL to COS with no compensation or acknowledgement.

The crew were really great, but the 4 hour delay in small chunks was the worst.

Everything was very good. Boarding and takeoff were on time and organized. Had a good flight

Other than the two hour delay, it was fine. Of course they were very professional and kept us informed throughout the whole delay..

Good. The wife was not working but then it got resolved.

Good boarding. Crew started quick with drinks and food. They came around several times for trash which I really liked. Other than turbulence due to storms in the area, flight was great.

Seats are way too snug for my hip to knee ratio and the recline on the seat in front of me made my experience worst. My legs had no room at all. Not a plane for people 6 ft or over unless you fly first class.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Flight delayed over an over all day until it cancelled at 1:30am. Would not repeatedly delay that late. Offer hotel rooms and rebook early. Very difficult for families with small children

American Airlines continues to price it can provide the least comfortable passenger experience in the air. This legacy carrier rivals the budgets for both terrible seats and inadequate amenities. I am a 5’7” woman who is not wider than a coach seat (even on these narrow bodied aircraft). My 3.5 hour flight was terribly uncomfortable because the leg room is inadequate (my knees hit the seat on front of me even when it was not reclined); the seat barely reclines; and the foam padding is worn thin to the extent one can feel the metal supports of the seat. Add to this the fact that the aisle is super narrow, so that the drink cart literally scrapes the arm rest of the aisle seat. It’s basically torture.

It was a good flight. Of course it was full, but it went well.

We sat on the plane for 1 hour because the airline was short handed could not be unloading.

We are gluten free, there were not any available complimentary gluten free options.

Flight delayed 3 times. We were directed to go to a gate across from our gate. The plane wasn't there yet so we had to wait for it to arrive, then deplane everyone and then wait again for the plane to be cleaned. After 45 minuites we were allowed on the plane. The first plane had mechanical issues. The 2nd plane must have had bathroom issues because we did not have any food service whatsoever. No snack or beverage. That made for a long time not to have anything considering that we had just made it to the original gate and we had no time to stop to get food or a drink. Then we didn't want to leave the gate to get food because we wouldn't know how much longer the delay would be. Then the next gate change. Had we been told that the total time would have been aprox 45 min later we would have left to get food and a beverage. We had to wait again for the okay to the pilot to take off so we were on the runway for another 20 min. Overall, we were delayed over 2 hours which felt like 4 hours.

Lots of weather delays that were poorly communicated and managed. I get there are weather delays but they didn’t make it clear what was happening or comfortable on the plane

Me and my husband experienced very bad in American Airlines. We missed our flight going to Doha. The American Airlines was delayed we arrived already 10:27pm. Supposed to be 9:40 pm. So what they did they rebooked our flight and they gave us a hotel. When we arrived at the hotel the front desk said it was fully booked already. Oh my gosh! I said why did you accept the booking if it's fully booked. The guy said that's American Airlines they just book even it's already full. That's 2am already, we have nothing to do so, we decided to go another hotel. We pay the room, food and taxi. Pls give an action on this matter. Refund our expenses and give us more compensation. Not only our room, food, taxi but also our efforts, tiredness looking for a room that can accommodate us.

Horrible. Flight was delayed and very bumpy. I was super unhappy

Book cheap flights from St. Louis to Key West

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Key West found on KAYAK in the last 72 hours.
6/23Sun
1 stopAmerican Airlines
7h 55mSTL-EYW
$294
6/22Sat
1 stopAmerican Airlines
5h 49mSTL-EYW
$353
6/23Sun
2 stopsAmerican Airlines
7h 40mSTL-EYW
$358
6/22Sat
2 stopsAmerican Airlines
9h 21mSTL-EYW
$359

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Last minute flights from St. Louis to Key West

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Key West that are departing in the next 10 days.
5/8Wed
multi-stopUnited Airlines
9h 54mSTL-EYW
5/11Sat
multi-stopUnited Airlines
11h 50mEYW-STL
$616
5/8Wed
multi-stopUnited Airlines
9h 54mSTL-EYW
5/11Sat
multi-stopUnited Airlines
9h 24mEYW-STL
$703
5/8Wed
multi-stopUnited Airlines
9h 06mSTL-EYW
5/11Sat
multi-stopUnited Airlines
11h 50mEYW-STL
$749
5/4Sat
multi-stopAmerican Airlines
5h 00mSTL-EYW
5/11Sat
multi-stopAmerican Airlines
7h 13mEYW-STL
$865
5/4Sat
multi-stopAmerican Airlines
7h 40mSTL-EYW
5/11Sat
multi-stopAmerican Airlines
8h 46mEYW-STL
$870
5/4Sat
multi-stopUnited Airlines
11h 45mSTL-EYW
5/11Sat
multi-stopUnited Airlines
11h 24mEYW-STL
$940

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St. Louis - Key West Flights

Departure:

St. Louis (STL)United States

Destination:

Key West (EYW)United States

Return flight deals:

Key West - St. Louis

Cabin classes: