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$393+ Cheap flights from Saint Thomas Island (STT) 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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
STT — SJO
Jul 19 — Jul 261
Sun 7/19
Sun 7/26
1 adult, Economy
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Cheap flight deals from Saint Thomas Island to Costa Rica

Cheapest flights from Saint Thomas Island to Costa Rica
Explore the most affordable flight options available from Saint Thomas Island to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 19, 2026.

This United Airlines deal was found by Cheapflights users on 6/14. 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.
Wed 7/294:45 pm
STT
-
SJO
2 stops31h 54m
United Airlines
Tue 8/412:30 am
SJO
-
STT
2 stops33h 50m
United Airlines
Deal found 6/14$799
This United Airlines deal was found by Cheapflights users on 6/18. 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.
Sun 8/24:45 pm
STT
-
SJO
2 stops28h 52m
United Airlines
Sat 8/812:30 am
SJO
-
STT
2 stops33h 50m
United Airlines
Deal found 6/18$929
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Thu 7/301:22 pm
STT
-
SJO
1 stop22h 49m
United Airlines
Sun 8/912:30 am
SJO
-
STT
1 stop13h 13m
United Airlines
Deal found 6/19$970
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Mon 7/274:45 pm
STT
-
SJO
2 stops31h 54m
United Airlines
Tue 8/412:30 am
SJO
-
STT
2 stops33h 50m
United Airlines
Deal found 6/16$989

Find flight deals from Saint Thomas Island to Costa Rica

Keep the following information in mind while searching for Saint Thomas Island to Costa Rica flight deals. Data was last updated June 19, 2026.

Round-trip from

$799
(United Airlines)

One-way from

$393
(Kiwi.com)
From Saint Thomas Island Cyril E King to Costa Rica
Search Deals
One-way flight from Saint Thomas Island Cyril E King to Costa Rica
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Saint Thomas Island 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 June 19, 2026.
Use the filters below to find and compare flights from Saint Thomas Island to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Saint Thomas IslandSan José

STT - SJO

STTSJO

Saint Thomas Island Cyril E King

Wed 7/29

4:45 pm-10:39 pm

2 stops31h 54m

San José Juan Santamaria Intl

Tue 8/4

12:30 am-12:20 pm

2 stops33h 50m

$799

Saint Thomas IslandSan José

STT - SJO

STTSJO

Saint Thomas Island Cyril E King

Sun 8/2

4:45 pm-7:37 pm

2 stops28h 52m

San José Juan Santamaria Intl

Sat 8/8

12:30 am-12:20 pm

2 stops33h 50m

$929
Quickest round-trip

Saint Thomas IslandSan José

STT - SJO

STTSJO

Saint Thomas Island Cyril E King

Thu 7/30

1:22 pm-10:11 am

1 stop22h 49m

San José Juan Santamaria Intl

Sun 8/9

12:30 am-3:43 pm

1 stop13h 13m

$970

Saint Thomas IslandSan José

STT - SJO

STTSJO

Saint Thomas Island Cyril E King

Mon 7/27

4:45 pm-10:39 pm

2 stops31h 54m

San José Juan Santamaria Intl

Tue 8/4

12:30 am-3:43 pm

1 stop13h 13m

$1,013

Saint Thomas IslandSan José

STT - SJO

STTSJO

Saint Thomas Island Cyril E King

Thu 7/30

3:38 pm-12:57 pm

2 stops23h 19m

San José Juan Santamaria Intl

Mon 8/10

9:25 am-3:32 pm

2 stops28h 07m

$1,084

Saint Thomas IslandSan José

STT - SJO

STTSJO

Saint Thomas Island Cyril E King

Sun 8/2

8:39 am-11:45 am

3 stops29h 06m

San José Juan Santamaria Intl

Sat 8/8

1:40 am-7:20 pm

3 stops15h 40m

$1,593
Cheapest one-way

Saint Thomas IslandSan José

STT - SJO

STTSJO

Saint Thomas Island Cyril E King

Wed 6/24

4:45 pm-8:19 pm

2 stops29h 34m

$453

Saint Thomas IslandSan José

STT - SJO

STTSJO

Saint Thomas Island Cyril E King

Fri 6/26

4:45 pm-10:39 pm

2 stops31h 54m

$563

Saint Thomas IslandSan José

STT - SJO

STTSJO

Saint Thomas Island Cyril E King

Thu 7/2

4:45 pm-8:19 pm

2 stops29h 34m

$563

Saint Thomas IslandSan José

STT - SJO

STTSJO

Saint Thomas Island Cyril E King

Thu 6/25

4:45 pm-10:39 pm

2 stops31h 54m

$568

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/19

Showing 1-10 of 17 resultsSorted by cheapest first
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Best time to book a flight from Saint Thomas Island to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Saint Thomas Island 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 Saint Thomas Island to Costa Rica
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Saint Thomas Island 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 Saint Thomas Island to Costa Rica?

    Saint Thomas Island Cyril E King (STT), located 2.8 mi from the city center, is the airport you fly out of when you book flights from Saint Thomas Island to Costa Rica.

  • How long is the flight from Saint Thomas Island to Costa Rica?

    United Airlines can get you from Saint Thomas Island to Costa Rica in just under 31h 54m. Your travel time can differ by up to . There are 1409 mi between Saint Thomas Island and Costa Rica.

  • Can I find deals for flights from Saint Thomas Island to Costa Rica that include hotel bookings?

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

  • How can I find direct flights from Saint Thomas Island to Costa Rica?

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

  • Can I find deals for business class flights from Saint Thomas Island to Costa Rica?

    Yes. Cheapflights offers flight deals from Saint Thomas Island 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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