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$153+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — SJO
ene. 14 — ene. 211
mié. 1/14
mié. 1/21
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 diciembre 15, 2025.

This Priceline deal was found by Cheapflights users on 12/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/269:11 pmTTN - SJO
1 stop13h 10mFrontier
mié. 1/73:10 pmSJO - TTN
2 stops21h 22mFrontier
Deal found 12/15$817
This Priceline deal was found by Cheapflights users on 12/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/269:11 pmTTN - SJO
1 stop13h 10mFrontier
mié. 12/312:52 pmSJO - TTN
2 stops29h 22mFrontier
Deal found 12/14$877
This Frontier deal was found by Cheapflights users on 12/15. 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.
dom. 12/219:59 pmTTN - SJO
2 stops16h 43mFrontier
sáb. 12/2710:36 amSJO - TTN
1 stop12h 23mFrontier
Deal found 12/15$900
This Frontier deal was found by Cheapflights users on 12/14. 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.
jue. 12/189:59 pmTTN - SJO
2 stops16h 43mFrontier
sáb. 12/2010:36 amSJO - TTN
1 stop9h 38mFrontier
Deal found 12/14$912
This Frontier deal was found by Cheapflights users on 12/15. 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.
jue. 12/189:59 pmTTN - SJO
2 stops16h 43mFrontier
sáb. 12/2710:36 amSJO - TTN
1 stop12h 23mFrontier
Deal found 12/15$955
This Trip.com deal was found by Cheapflights users on 12/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/276:10 amTTN - SJO
1 stop10h 10mMultiple Airlines
vie. 1/27:22 amSJO - TTN
1 stop15h 37mMultiple Airlines
Deal found 12/15$1,240
This Frontier deal was found by Cheapflights users on 12/14. 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.
mar. 12/239:59 pmTTN - SJO
2 stops16h 43mFrontier
sáb. 1/310:36 amSJO - TTN
1 stop12h 23mFrontier
Deal found 12/14$1,483

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 diciembre 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$394
(Kiwi.com)

One-way from

$153
(Trip.com)

Popular in

December

Cheapest in

October

Average price

$653
Provider with most accurate pricing for New York (NYC)-San José Juan Santamaria Intl flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-San José Juan Santamaria Intl flights.
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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. 6% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 diciembre 15, 2025.
Use the filters below to find and compare flights from Trenton to Costa Rica that are best for you.

Fly from

Trenton

Fly to

Costa Rica

Route

Depart

Return

Price

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

mar. 1/27

3:21 pm-6:55 pm

2 stops28h 34m

San José Juan Santamaria Intl

mar. 2/3

12:33 pm-2:26 pm

1 stop24h 53m

$394

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

mar. 3/24

6:00 am-3:16 pm

1 stop11h 16m

San José Juan Santamaria Intl

mar. 3/31

7:30 am-11:59 pm

1 stop14h 29m

$410

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

mié. 2/25

8:00 am-3:20 pm

1 stop8h 20m

San José Juan Santamaria Intl

mié. 3/25

7:30 am-11:59 pm

1 stop14h 29m

$419

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

dom. 3/22

6:00 am-3:16 pm

1 stop11h 16m

San José Juan Santamaria Intl

vie. 3/27

7:30 am-11:59 pm

1 stop14h 29m

$713

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

mié. 1/14

8:00 am-3:20 pm

1 stop8h 20m

San José Juan Santamaria Intl

lun. 1/19

7:22 am-11:39 pm

1 stop15h 17m

$738

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

sáb. 3/28

3:04 pm-3:16 pm

1 stop26h 12m

San José Juan Santamaria Intl

sáb. 4/4

7:30 am-11:59 pm

1 stop14h 29m

$753

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

vie. 12/26

9:11 pm-9:21 am

1 stop13h 10m

San José Juan Santamaria Intl

mié. 1/7

3:10 pm-1:32 pm

2 stops21h 22m

$817

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

vie. 12/26

9:11 pm-9:21 am

1 stop13h 10m

San José Juan Santamaria Intl

mié. 12/31

2:52 pm-9:14 pm

2 stops29h 22m

$877

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

sáb. 12/27

6:10 am-3:20 pm

1 stop10h 10m

San José Juan Santamaria Intl

vie. 1/2

7:22 am-11:59 pm

1 stop15h 37m

$1,240

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

jue. 1/15

7:00 am-3:20 pm

1 stop9h 20m

$153

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 14 results
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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 $123). Flying from Trenton, New Jersey to Costa Rica in May is currently the most expensive (average of $227). 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.

  • 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 $123). Flying from Trenton, New Jersey to Costa Rica in May is currently the most expensive (average of $227). 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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