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$156+ 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 6/20. Fares are subject to change and may not be available on all flights or dates of travel.
STT — SJO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap 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 12, 2025.

Round-trip from

$417
(Priceline)

One-way from

$156
(Kiwi.com)
From Saint Thomas Island Cyril E King to Costa Rica
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One-way flight from Saint Thomas Island Cyril E King to Costa Rica
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Find 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 12, 2025.

This Priceline deal was found by Cheapflights users on 6/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:05 pmSTT - SJO
1 stop23h 20mMultiple Airlines
Wed 9/246:53 amSJO - STT
2 stops7h 42mMultiple Airlines
Deal found 6/10$417
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 9/31:40 pmSTT - SJO
1 stop8h 02mAmerican Airlines
Wed 9/2412:12 pmSJO - STT
1 stop25h 48mAmerican Airlines
Deal found 6/10$492
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 7/122:10 pmSTT - SJO
1 stop23h 45mUnited Airlines
Sat 7/195:30 amSJO - STT
1 stop32h 13mUnited Airlines
Deal found 6/10$845

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 12, 2025.
Use the filters below to find and compare flights from Saint Thomas Island to Costa Rica that are best for you.

Fly from

Saint Thomas Island

Fly to

Costa Rica

Route

Depart

Return

Price

Saint Thomas IslandSan José

STT - SJO

STTSJO

Saint Thomas Island Cyril E King

Wed 9/3

6:05 pm-3:25 pm

1 stop23h 20m

San José Juan Santamaria Intl

Wed 9/24

6:53 am-4:35 pm

2 stops7h 42m

$417

Saint Thomas IslandSan José

STT - SJO

STTSJO

Saint Thomas Island Cyril E King

Wed 9/3

1:40 pm-7:42 pm

1 stop8h 02m

San José Juan Santamaria Intl

Wed 9/24

12:12 pm-4:00 pm

1 stop25h 48m

$492

Saint Thomas IslandSan José

STT - SJO

STTSJO

Saint Thomas Island Cyril E King

Sat 7/12

2:10 pm-11:55 am

1 stop23h 45m

San José Juan Santamaria Intl

Sat 7/19

5:30 am-3:43 pm

1 stop32h 13m

$845

Saint Thomas IslandSan José

STT - SJO

STTSJO

Saint Thomas Island Cyril E King

Fri 6/20

5:12 pm-11:30 pm

2 stops32h 18m

$156

Saint Thomas IslandSan José

STT - SJO

STTSJO

Saint Thomas Island Cyril E King

Fri 7/11

12:26 pm-11:11 am

1 stop24h 45m

$204

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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

Rainfall in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Costa Rica ranges from 0.0 - 11.8 inches per month. September is typically the wettest month, when rainfall can reach 11.8 in. February is typically the driest time to visit Costa Rica when rainfall is around 0.0 in.

Temperature in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Costa Rica, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).

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 June 12, 2025.
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
6.0
Good

May,Apr 2024

IAD - TYS

The staff were pleasant. There was no food or entertainment.
United Airlines
7.4
Good
8,790 reviews
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
6.0
Good

May,Apr 2024

IAD - TYS

The staff were pleasant. There was no food or entertainment.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
6.0
Good

May,Apr 2024

IAD - TYS

The staff were pleasant. There was no food or entertainment.
Spirit Airlines
6.3
Okay
8,052 reviews
United Airlines
7.4
Good
8,790 reviews

Entertainment

7.0

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Reviews

1 / 20
6.0
Good

May,Apr 2024

IAD - TYS

The staff were pleasant. There was no food or entertainment.

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.

  • 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.

  • What is the cheapest month to book a flight from Saint Thomas Island to Costa Rica?

    Currently, September is the cheapest month in which you can book a flight from Saint Thomas Island to Costa Rica (average of $398). Flying from Saint Thomas Island to Costa Rica in March is currently the most expensive (average of $555). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Costa Rica by adding a car rental and/or hotel reservation to your travel itinerary.
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Liberia car rentals

Top airline flying from Saint Thomas Island to Costa Rica

Discover the top airline that operate flights from Saint Thomas Island 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$348Average$593FlexibilityNo cancel feeOn-time71%

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