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$474+ 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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — SJO
juil. 18 — juil. 251
sam. 7/18
sam. 7/25
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 juin 18, 2026.

This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 7/38:33 pm
TTN
-
SJO
1 stop13h 47m
Frontier
jeu. 7/99:35 am
SJO
-
TTN
1 stop12h 05m
Frontier
Deal found 6/16$548
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 7/18:33 pm
TTN
-
SJO
1 stop13h 47m
Frontier
jeu. 7/99:35 am
SJO
-
TTN
1 stop12h 05m
Frontier
Deal found 6/18$578
This Frontier deal was found by Cheapflights users on 6/15. 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.
sam. 6/209:37 pm
TTN
-
SJO
1 stop12h 43m
Frontier
jeu. 6/259:35 am
SJO
-
TTN
1 stop8h 13m
Frontier
Deal found 6/15$598
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 6/209:37 pm
TTN
-
SJO
1 stop12h 43m
Frontier
dim. 6/289:35 am
SJO
-
TTN
1 stop8h 13m
Frontier
Deal found 6/14$683
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 6/279:37 pm
TTN
-
SJO
1 stop12h 43m
Frontier
jeu. 7/29:35 am
SJO
-
TTN
1 stop22h 22m
Frontier
Deal found 6/16$782
This Trip.com deal was found by Cheapflights users on 6/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/66:05 am
TTN
-
SJO
1 stop11h 06m
Multiple Airlines
jeu. 7/99:35 am
SJO
-
TTN
1 stop12h 05m
Multiple Airlines
Deal found 6/17$796
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 6/279:37 pm
TTN
-
SJO
1 stop12h 43m
Multiple Airlines
mar. 6/307:07 am
SJO
-
TTN
1 stop10h 41m
Multiple Airlines
Deal found 6/16$850
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/298:33 pm
TTN
-
SJO
1 stop20h 38m
Multiple Airlines
jeu. 7/29:35 am
SJO
-
TTN
1 stop22h 22m
Multiple Airlines
Deal found 6/16$869
This Travelocity deal was found by Cheapflights users on 6/15. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 7/176:05 am
TTN
-
SJO
1 stop28h 25m
Frontier
jeu. 7/309:35 am
SJO
-
TTN
1 stop12h 05m
Frontier
Deal found 6/15$884
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 6/279:37 pm
TTN
-
SJO
1 stop12h 43m
Multiple Airlines
mer. 7/17:07 am
SJO
-
TTN
1 stop10h 41m
Multiple Airlines
Deal found 6/16$888
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 6/289:22 am
TTN
-
SJO
1 stop7h 49m
Multiple Airlines
jeu. 7/29:35 am
SJO
-
TTN
1 stop22h 22m
Multiple Airlines
Deal found 6/16$897
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 7/156:25 am
TTN
-
SJO
1 stop27h 55m
Frontier
dim. 8/29:35 am
SJO
-
TTN
1 stop12h 05m
Frontier
Deal found 6/14$904

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 juin 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$548
(Frontier)

One-way from

$474
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$542
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. 1% potential increase in price ($9 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 juin 18, 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

ven. 7/3

8:33 pm-8:20 am

1 stop13h 47m

San José Juan Santamaria Intl

sam. 7/11

9:45 am-8:38 am

1 stop20h 53m

$548

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

ven. 7/3

8:33 pm-8:20 am

1 stop13h 47m

San José Juan Santamaria Intl

jeu. 7/9

9:35 am-11:40 pm

1 stop12h 05m

$548

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

mer. 7/1

8:33 pm-8:20 am

1 stop13h 47m

San José Juan Santamaria Intl

jeu. 7/9

9:35 am-11:40 pm

1 stop12h 05m

$578

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

ven. 7/17

6:05 am-8:30 am

1 stop28h 25m

San José Juan Santamaria Intl

jeu. 7/30

9:35 am-11:40 pm

1 stop12h 05m

$884

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

mer. 7/15

6:25 am-8:20 am

1 stop27h 55m

San José Juan Santamaria Intl

dim. 8/2

9:35 am-11:40 pm

1 stop12h 05m

$904
Quickest round-trip

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

dim. 6/28

9:22 am-3:11 pm

1 stop7h 49m

San José Juan Santamaria Intl

mer. 7/1

7:07 am-7:48 pm

1 stop10h 41m

$1,002

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

lun. 7/13

6:05 am-3:11 pm

1 stop11h 06m

San José Juan Santamaria Intl

ven. 7/31

7:07 am-11:40 pm

1 stop14h 33m

$1,019

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

mer. 7/22

6:25 am-8:20 am

1 stop27h 55m

San José Juan Santamaria Intl

dim. 7/26

9:35 am-11:40 pm

1 stop12h 05m

$1,061

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

dim. 6/28

11:50 am-7:09 am

2 stops21h 19m

San José Juan Santamaria Intl

jeu. 7/2

9:35 am-9:57 am

1 stop22h 22m

$1,079

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

dim. 6/28

11:50 am-7:09 am

2 stops21h 19m

San José Juan Santamaria Intl

mar. 6/30

7:07 am-7:48 pm

1 stop10h 41m

$1,147

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 12 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
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 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 47m. 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.

See more FAQs

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