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$275+ Cheap flights from Trenton, NJ (TTN) 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 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — SJO
Apr 14 — Apr 211
Tue 4/14
Tue 4/21
1 adult, Economy
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Cheap flight deals from Trenton to Costa Rica

Cheapest flights from Trenton to Costa Rica
Explore the most affordable flight options available from Trenton to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.

This Orbitz deal was found by Cheapflights users on 3/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/288:31 pm
TTN
-
SJO
1 stop13h 48m
Frontier
Sun 5/319:35 am
SJO
-
TTN
1 stop22h 07m
Frontier
Deal found 3/11$328
This Frontier deal was found by Cheapflights users on 3/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:50 pm
TTN
-
SJO
1 stop13h 29m
Frontier
Mon 6/89:35 am
SJO
-
TTN
1 stop8h 11m
Frontier
Deal found 3/11$349
This Expedia deal was found by Cheapflights users on 3/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:50 pm
TTN
-
SJO
1 stop13h 29m
Frontier
Mon 6/19:35 am
SJO
-
TTN
1 stop8h 11m
Frontier
Deal found 3/14$363
This Frontier deal was found by Cheapflights users on 3/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:50 pm
TTN
-
SJO
1 stop13h 29m
Frontier
Sun 6/79:35 am
SJO
-
TTN
1 stop8h 11m
Frontier
Deal found 3/11$373
This Expedia deal was found by Cheapflights users on 3/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:50 pm
TTN
-
SJO
1 stop13h 29m
Frontier
Fri 6/59:35 am
SJO
-
TTN
1 stop8h 11m
Frontier
Deal found 3/11$393
This Expedia deal was found by Cheapflights users on 3/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/248:31 pm
TTN
-
SJO
1 stop13h 48m
Frontier
Sat 5/309:35 am
SJO
-
TTN
1 stop22h 07m
Frontier
Deal found 3/13$398
This Expedia deal was found by Cheapflights users on 3/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:31 pm
TTN
-
SJO
1 stop13h 48m
Frontier
Sun 5/319:35 am
SJO
-
TTN
1 stop22h 07m
Frontier
Deal found 3/14$424
This FlightHub deal was found by Cheapflights users on 3/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/38:31 pm
TTN
-
SJO
1 stop13h 48m
Frontier
Mon 6/89:35 am
SJO
-
TTN
1 stop8h 11m
Frontier
Deal found 3/14$449
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Thu 4/97:15 pm
TTN
-
SJO
1 stop17h 59m
Multiple Airlines
Tue 4/1412:19 pm
SJO
-
TTN
2 stops32h 17m
Multiple Airlines
Deal found 3/13$483
This Frontier deal was found by Cheapflights users on 3/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:31 pm
TTN
-
SJO
1 stop13h 48m
Frontier
Mon 6/89:35 am
SJO
-
TTN
1 stop8h 11m
Frontier
Deal found 3/12$658
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sun 4/267:15 pm
TTN
-
SJO
1 stop18h 18m
Multiple Airlines
Sun 5/37:55 pm
SJO
-
TTN
2 stops35h 47m
Multiple Airlines
Deal found 3/12$662

Find flight deals from Trenton to Costa Rica

Keep the following information in mind while searching for Trenton to Costa Rica flight deals. Data was last updated March 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$328
(Orbitz)

One-way from

$275
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$452
Provider with most accurate pricing for New York (NYC)-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-San José Juan Santamaria Intl flights.
Search Deals
From Trenton-Mercer to Costa Rica
Search Deals
One-way flight from Trenton-Mercer to Costa Rica
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Trenton 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 March 15, 2026.
Use the filters below to find and compare flights from Trenton to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Thu 5/28

8:31 pm-8:19 am

1 stop13h 48m

San José Juan Santamaria Intl

Sun 5/31

9:35 am-9:42 am

1 stop22h 07m

$328
Quickest round-trip

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 5/30

8:50 pm-8:19 am

1 stop13h 29m

San José Juan Santamaria Intl

Mon 6/1

9:35 am-7:46 pm

1 stop8h 11m

$363

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 5/30

8:50 pm-8:19 am

1 stop13h 29m

San José Juan Santamaria Intl

Sun 6/7

9:35 am-7:46 pm

1 stop8h 11m

$373

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 5/30

8:50 pm-8:19 am

1 stop13h 29m

San José Juan Santamaria Intl

Sat 6/6

9:35 am-8:05 pm

1 stop8h 30m

$393

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 5/30

8:50 pm-8:19 am

1 stop13h 29m

San José Juan Santamaria Intl

Fri 6/5

9:35 am-7:46 pm

1 stop8h 11m

$393

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sun 5/24

8:31 pm-8:19 am

1 stop13h 48m

San José Juan Santamaria Intl

Sat 5/30

9:35 am-9:42 am

1 stop22h 07m

$398

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Fri 5/29

8:31 pm-8:19 am

1 stop13h 48m

San José Juan Santamaria Intl

Sun 5/31

9:35 am-9:42 am

1 stop22h 07m

$424

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Wed 6/3

8:31 pm-8:19 am

1 stop13h 48m

San José Juan Santamaria Intl

Mon 6/8

9:35 am-7:46 pm

1 stop8h 11m

$449

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Thu 4/9

7:15 pm-11:14 am

1 stop17h 59m

San José Juan Santamaria Intl

Tue 4/14

12:19 pm-10:36 pm

2 stops32h 17m

$483

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Thu 6/4

8:31 pm-8:19 am

1 stop13h 48m

San José Juan Santamaria Intl

Mon 6/8

9:35 am-7:46 pm

1 stop8h 11m

$658

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

Showing 1-10 of 16 resultsSorted by cheapest first
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Best time to book a flight from Trenton to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Trenton 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 Trenton to Costa Rica

What is the cheapest month to book a flight from Trenton, New Jersey to Costa Rica?

Currently, November is the cheapest month in which you can book a flight from Trenton, New Jersey to Costa Rica (average of $122). Flying from Trenton, New Jersey to Costa Rica in May is currently the most expensive (average of $239). 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.

Related info for your journey

Find useful and relevant information for your journey from Trenton 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 Trenton to Costa Rica?

    Trenton-Mercer (TTN), located 4.8 mi from the city center, is the airport you fly out of when you book flights from Trenton to Costa Rica.

  • How long is the flight from Trenton, New Jersey to Costa Rica?

    Airlines like Frontier fly from Trenton, New Jersey to Costa Rica in about 13h 48m. The time it takes to get you to your destination can typically vary by up to . Trenton, New Jersey and Costa Rica are separated by a distance of 2169 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Trenton 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 Trenton, New Jersey to Costa Rica?

    Currently, November is the cheapest month in which you can book a flight from Trenton, New Jersey to Costa Rica (average of $122). Flying from Trenton, New Jersey to Costa Rica in May is currently the most expensive (average of $239). 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

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