$517 Find Cheap Flights from Key West to Costa Rica

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Key West to Costa Rica departing on 12/7. 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
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Key West to Costa Rica Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Key West to Costa Rica 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Key West to Costa Rica

Sun, Dec 7 - Wed, Dec 10
Spirit Airlines Logo
12:20 pm - 12:25 pmEYW-SJO
25h 05m1 stop
Spirit Airlines Logo
1:31 pm - 11:20 amSJO-EYW
20h 49m1 stop
$334Spirit Airlines
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Sun, Dec 7 - Wed, Dec 10
Spirit Airlines Logo
12:20 pm - 11:42 amEYW-SJO
24h 22m2 stops
Spirit Airlines Logo
1:31 pm - 11:20 amSJO-EYW
20h 49m1 stop
$400Spirit Airlines
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Sun, Dec 7 - Wed, Dec 10
Multiple Airlines Logo
12:20 pm - 1:05 pmEYW-SJO
25h 45m2 stops
Multiple Airlines Logo
1:31 pm - 1:40 pmSJO-EYW
23h 09m3 stops
$444Multiple Airlines
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Sun, Dec 7 - Wed, Dec 10
Multiple Airlines Logo
12:20 pm - 11:42 amEYW-SJO
24h 22m3 stops
Multiple Airlines Logo
1:31 pm - 1:40 pmSJO-EYW
23h 09m3 stops
$503Multiple Airlines
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Tue, Dec 2 - Sun, Dec 7
American Airlines Logo
7:00 am - 1:39 pmEYW-SJO
7h 39m1 stop
American Airlines Logo
7:00 am - 11:07 pmSJO-EYW
15h 07m1 stop
$517American Airlines
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Tue, Dec 2 - Sun, Dec 7
American Airlines Logo
6:33 pm - 1:56 pmEYW-SJO
20h 23m2 stops
American Airlines Logo
7:00 am - 4:57 pmSJO-EYW
8h 57m1 stop
$521American Airlines
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Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
6:31 am - 12:58 pmEYW-SJO
8h 27m1 stop
American Airlines Logo
2:55 pm - 11:59 pmSJO-EYW
7h 04m1 stop
$666American Airlines
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Sun, Dec 7 - Wed, Dec 10
American Airlines Logo
4:10 pm - 11:52 amEYW-SJO
20h 42m2 stops
American Airlines Logo
7:00 am - 9:46 pmSJO-EYW
13h 46m2 stops
$669American Airlines
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Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
6:31 am - 1:25 pmEYW-SJO
8h 54m2 stops
American Airlines Logo
2:55 pm - 11:59 pmSJO-EYW
7h 04m1 stop
$670American Airlines
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Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
6:31 am - 1:25 pmEYW-SJO
8h 54m2 stops
American Airlines Logo
2:55 pm - 6:30 pmSJO-EYW
25h 35m2 stops
$692American Airlines
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Booking Insights

KAYAK's insights & trends for Key West to Costa Rica flights

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

Which airlines fly non-stop between Key West and Costa Rica?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Key West to Costa Rica.

There is just one airline that flies from Key West to Costa Rica direct and that is American Airlines. The best round-trip deal found from American Airlines for the route is to San José (SJO) and costs $535.

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Good to know

Cheapest flight$334
Flight from Key West to San José

FAQs - booking Costa Rica flights

  • How does KAYAK find such low prices on flights from Key West to Costa Rica?

    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 Key West to Costa Rica.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Key West to Costa Rica 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 Key West to Costa Rica?

    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 from Key West to Costa Rica with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Key West to Costa Rica?

    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 from Key West to Costa Rica up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Costa Rica?

    The cheapest time of day to fly to Costa Rica is generally in the evening, when round-trip flights cost $584 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Costa Rica is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $764.

Reviews of the top airline flying from Key West to Costa Rica

 
Need help choosing which airline to fly with from Key West to Costa Rica? 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.
7.2
American AirlinesOverall score based on 11050 reviews
6.4Food
7.5Boarding
7.2Comfort
8.0Crew
6.9Entertainment
Airline reviews

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

10.0 ExcellentAnonymous, Nov 2025MIA - LAX
Read more American Airlines reviews

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so didn't have any food

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

My flight was delayed for 17hs because the pilot forgot his passport!!! What a joke. AA used to be a great airline, now I have to think twice before flying with them again.

We had 3 flights. 1 & 2 were on the same plane but we had to de-board just to re-board 30 mins later. That may have been due to a crew change though. Our 3rd flight had a couple “maintenance” issues that held us up. They were quickly resolved but it took forever for someone to bring the paperwork needed so we could leave. Apparently there was a computer glitch so a driver had to bring a physical copy. It delayed us about 1 1/2 hrs. The flights themselves were smooth & no problems. For boarding, I don’t know why they don’t start with the back of the plane & move forward. It would eliminate the back up from people trying to find their seats & put their bags in the overhead bins. Unless you’re on an overseas flight, there is no food, you get a beverage & either a small bag of pretzels or a biscuit cookie. Take your own food or snacks of you want something more.

Lost bag and 2 days no word leaving for cruise no clothes or stuff

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

Internet was a bit expensive and did not work ask that week otherwise a good flight

Food was ok, but not as good as I have had before on AA.

Pretty good. The food was just mediocre, the boarding and crew were good.

Everything you need to know for your flight from Key West to Costa Rica

Information on your arrival and departure airports

Key West (EYW)