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$348+ Cheap flights from Key West (EYW) to Costa Rica

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — SJO
avr. 8 — avr. 151
mer. 4/8
mer. 4/15
1 adult, Economy
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Cheap flight deals from Key West to Costa Rica

Cheapest flights from Key West to Costa Rica
Explore the most affordable flight options available from Key West to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mars 9, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 4/2312:26 pm
EYW
-
SJO
1 stop25h 07m
Spirit Airlines
dim. 4/2612:38 pm
SJO
-
EYW
1 stop22h 57m
Spirit Airlines
Deal found 3/5$516
This American Airlines deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 4/226:45 am
EYW
-
SJO
1 stop14h 22m
American Airlines
mer. 4/292:22 pm
SJO
-
EYW
1 stop6h 36m
American Airlines
Deal found 3/4$576
This American Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 4/246:45 am
EYW
-
SJO
1 stop6h 22m
American Airlines
sam. 5/26:30 am
SJO
-
EYW
1 stop14h 28m
American Airlines
Deal found 3/6$612
This American Airlines deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 4/2311:24 am
EYW
-
SJO
1 stop9h 43m
American Airlines
dim. 4/262:22 pm
SJO
-
EYW
2 stops20h 59m
American Airlines
Deal found 3/5$622
This Mytrip deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 4/2312:26 pm
EYW
-
SJO
3 stops28h 52m
Multiple Airlines
dim. 4/267:00 am
SJO
-
EYW
3 stops28h 35m
Multiple Airlines
Deal found 3/5$692
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/114:47 pm
EYW
-
SJO
1 stop21h 34m
United Airlines
jeu. 5/141:25 pm
SJO
-
EYW
1 stop24h 37m
United Airlines
Deal found 3/6$1,151

Find flight deals from Key West to Costa Rica

Keep the following information in mind while searching for Key West to Costa Rica flight deals. Data was last updated mars 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$516
(Kiwi.com)

One-way from

$348
(American Airlines)
Provider with most accurate pricing for Key West-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Key West-San José Juan Santamaria Intl flights.
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From Key West to Costa Rica
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One-way flight from Key West to Costa Rica
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Key West to Costa Rica that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated mars 9, 2026.
Use the filters below to find and compare flights from Key West to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Key WestSan José

EYW - SJO

EYWSJO

Key West

jeu. 4/23

12:26 pm-11:33 am

1 stop25h 07m

San José Juan Santamaria Intl

dim. 4/26

12:38 pm-1:35 pm

1 stop22h 57m

$516

Key WestSan José

EYW - SJO

EYWSJO

Key West

mer. 4/22

6:45 am-7:07 pm

1 stop14h 22m

San José Juan Santamaria Intl

mer. 4/29

2:22 pm-10:58 pm

1 stop6h 36m

$576
Quickest round-trip

Key WestSan José

EYW - SJO

EYWSJO

Key West

ven. 4/24

6:45 am-11:07 am

1 stop6h 22m

San José Juan Santamaria Intl

sam. 5/2

6:30 am-10:58 pm

1 stop14h 28m

$612
Cheapest one-way

Key WestSan José

EYW - SJO

EYWSJO

Key West

ven. 4/24

4:20 pm-11:07 am

2 stops20h 47m

$348

Key WestSan José

EYW - SJO

EYWSJO

Key West

sam. 3/14

12:25 pm-10:42 am

3 stops48h 17m

$453
Quickest one-way

Key WestSan José

EYW - SJO

EYWSJO

Key West

sam. 3/14

1:49 pm-7:33 pm

1 stop7h 44m

$572

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Sorted by cheapest first

Best time to book a flight from Key West to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Key West with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Key West to Costa Rica
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Costa Rica

Get insights into the airlines that provide service to Costa Rica. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Costa Rica. Reviews last updated mars 9, 2026.
See what other customers who have flown with American Airlines from Key West to Costa Rica have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,403 reviews

Boarding

7.5

Comfort

7.2

Crew

8.0

Food

6.4

Entertainment

6.9

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes
American Airlines
7.1
Good
11,403 reviews
American Airlines
7.1
Good
11,403 reviews

Boarding

7.5

Comfort

7.2

Crew

8.0

Food

6.4

Entertainment

6.9

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes

Related info for your journey

Find useful and relevant information for your journey from Key West to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Key West to Costa Rica?

    Key West (EYW), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Key West to Costa Rica.

  • How long is the flight from Key West to Costa Rica?

    Spirit Airlines and American Airlines can get you from Key West to Costa Rica in just under 14h 22m. Your travel time can differ by up to 10h 45m. There are 1018 mi between Key West and Costa Rica. This flight may include one or multiple stops.

  • Can I find deals for flights from Key West to Costa Rica that include hotel bookings?

    Yes. In addition to deals on Key West to Costa Rica flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Key West to Costa Rica?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Key West to Costa Rica.

  • Can I find deals for business class flights from Key West to Costa Rica?

    Yes. Cheapflights offers flight deals from Key West to Costa Rica by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Key West to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Key West to Costa Rica

Discover the top airline that operate flights from Key West to Costa Rica. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated mars 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$523Average$611FlexibilityNo cancel feeOn-time71%

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