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Cheap flights from Trenton, New Jersey to Costa Rica from $138

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Trenton, New Jersey to Costa Rica departing on 6/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Trenton, New Jersey to Costa Rica

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:31 pm - 8:19 am
TTN
-
SJO
13h 48m
1 stop
Frontier Logo
9:35 am - 7:46 pm
SJO
-
TTN
8h 11m
1 stop
$284Frontier
Sun, May 24 - Sun, May 31
Frontier Logo
10:27 am - 8:19 am
TTN
-
SJO
23h 52m
1 stop
Frontier Logo
9:35 am - 9:42 am
SJO
-
TTN
22h 07m
1 stop
$304Frontier
Thu, May 21 - Mon, May 25
Frontier Logo
8:31 pm - 8:19 am
TTN
-
SJO
13h 48m
1 stop
Frontier Logo
9:35 am - 7:46 pm
SJO
-
TTN
8h 11m
1 stop
$313Frontier
Sun, May 24 - Thu, May 28
Frontier Logo
10:27 am - 8:19 am
TTN
-
SJO
23h 52m
1 stop
Frontier Logo
9:35 am - 7:46 pm
SJO
-
TTN
8h 11m
1 stop
$319Frontier
Thu, May 21 - Mon, Jun 8
Frontier Logo
10:27 am - 8:19 am
TTN
-
SJO
23h 52m
1 stop
Frontier Logo
9:35 am - 9:42 am
SJO
-
TTN
22h 07m
1 stop
$324Frontier
Thu, May 21 - Mon, May 25
Frontier Logo
8:31 pm - 8:19 am
TTN
-
SJO
13h 48m
1 stop
Frontier Logo
9:35 am - 7:46 pm
SJO
-
TTN
8h 11m
1 stop
$328Frontier
Sun, May 24 - Sun, May 31
Frontier Logo
10:27 am - 8:19 am
TTN
-
SJO
23h 52m
1 stop
Frontier Logo
9:35 am - 7:46 pm
SJO
-
TTN
8h 11m
1 stop
$331Frontier
Thu, May 21 - Thu, May 28
Frontier Logo
8:33 pm - 8:20 am
TTN
-
SJO
13h 47m
1 stop
Frontier Logo
9:35 am - 7:48 pm
SJO
-
TTN
8h 13m
1 stop
$338Frontier
Wed, Jun 10 - Mon, Aug 10
Frontier Logo
10:27 am - 8:19 am
TTN
-
SJO
23h 52m
1 stop
Frontier Logo
9:35 am - 9:42 am
SJO
-
TTN
22h 07m
1 stop
$339Frontier
Thu, May 21 - Fri, May 29
Frontier Logo
10:32 am - 8:20 am
TTN
-
SJO
23h 48m
1 stop
Frontier Logo
9:35 am - 7:48 pm
SJO
-
TTN
8h 13m
1 stop
$344Frontier
Wed, Jun 17 - Thu, Jul 16

Frontier flights from Trenton, New Jersey to Costa Rica

Our best Frontier deals on Trenton, New Jersey to Costa Rica flight tickets
Frontier
May 24
TTN8:31 pmTrenton-Mercer
13h 48m
1 stop
SJO8:19 amSan José Juan Santamaria Intl
May 31
SJO9:35 amSan José Juan Santamaria Intl
8h 11m
1 stop
TTN7:46 pmTrenton-Mercer
$284
Frontier
May 21
TTN10:27 amTrenton-Mercer
23h 52m
1 stop
SJO8:19 amSan José Juan Santamaria Intl
May 25
SJO9:35 amSan José Juan Santamaria Intl
22h 07m
1 stop
TTN9:42 amTrenton-Mercer
$304
Frontier
May 24
TTN8:31 pmTrenton-Mercer
13h 48m
1 stop
SJO8:19 amSan José Juan Santamaria Intl
May 28
SJO9:35 amSan José Juan Santamaria Intl
8h 11m
1 stop
TTN7:46 pmTrenton-Mercer
$313

momondo Fare Finder

 
Customize your flight search to find flights from Trenton, New Jersey 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, momondo users made 832,500 searches. Data last updated April 1, 2026.
Use the filters below to find and compare flights from Trenton, New Jersey to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sun 5/24

8:31 pm-8:19 am

1 stop13h 48m

San José Juan Santamaria Intl

Sun 5/31

9:35 am-7:46 pm

1 stop8h 11m

$284

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Thu 5/21

10:27 am-8:19 am

1 stop23h 52m

San José Juan Santamaria Intl

Mon 5/25

9:35 am-9:42 am

1 stop22h 07m

$304

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sun 5/24

8:31 pm-8:19 am

1 stop13h 48m

San José Juan Santamaria Intl

Thu 5/28

9:35 am-7:46 pm

1 stop8h 11m

$313

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Thu 5/21

10:27 am-8:19 am

1 stop23h 52m

San José Juan Santamaria Intl

Mon 6/8

9:35 am-7:46 pm

1 stop8h 11m

$319

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Thu 5/21

10:27 am-8:19 am

1 stop23h 52m

San José Juan Santamaria Intl

Mon 5/25

9:35 am-9:42 am

1 stop22h 07m

$324

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sun 5/24

8:31 pm-8:19 am

1 stop13h 48m

San José Juan Santamaria Intl

Sun 5/31

9:35 am-7:46 pm

1 stop8h 11m

$328

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Thu 5/21

10:27 am-8:19 am

1 stop23h 52m

San José Juan Santamaria Intl

Thu 5/28

9:35 am-7:46 pm

1 stop8h 11m

$331

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Wed 6/10

8:33 pm-8:20 am

1 stop13h 47m

San José Juan Santamaria Intl

Mon 8/10

9:35 am-7:48 pm

1 stop8h 13m

$338

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Thu 5/21

10:27 am-8:19 am

1 stop23h 52m

San José Juan Santamaria Intl

Fri 5/29

9:35 am-9:42 am

1 stop22h 07m

$339

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Wed 6/17

10:32 am-8:20 am

1 stop23h 48m

San José Juan Santamaria Intl

Thu 7/16

9:35 am-7:48 pm

1 stop8h 13m

$344

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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2

See travel insights to Costa Rica from

How to get the cheapest flight ticket from Trenton, New Jersey to Costa Rica

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Trenton-Mercer to Costa Rica?

Frontier is the most popular carrier operating from Trenton-Mercer to Costa Rica

What airlines fly to Costa Rica?

United Airlines, JetBlue and American Airlines are the top three most popular airlines that fly to Costa Rica from Trenton, New Jersey according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Costa Rica. Keep in mind that there are 10 different airlines that fly to Costa Rica on a routine basis, so you have a few additional options to choose from.

Cheap Trenton, New Jersey to Costa Rica flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Trenton, New Jersey to Costa Rica

Fastest flight time

13h 47m

Direct flights

None
The fastest flight from Trenton, New Jersey to Costa Rica takes 13h 47m
There are no direct flights from Trenton, New Jersey to Costa Rica. There are no popular flight routes from Trenton, New Jersey to Costa Rica.
Search flight deals

Frequently asked questions about flying from Trenton, New Jersey to Costa Rica

  • When did momondo last update prices for flights from Trenton-Mercer Airport to Costa Rica?

    Prices for flights from Trenton-Mercer Airport to Costa Rica were last updated today.

  • How old do you have to be to fly from Trenton-Mercer Airport to Costa Rica?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Trenton-Mercer Airport to Costa Rica.

  • What documentation or ID do you need to fly to Costa Rica?

    The travel and health documents required for your trip to Costa Rica can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Costa Rica. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Trenton to Costa Rica?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Trenton to Costa Rica for you.

Can I find flights from Trenton to Costa Rica with flexible booking policies on momondo?

momondo does allow users to show only those flights to Costa Rica from Trenton which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Trenton to Costa Rica?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Costa Rica from Trenton.

I’m not ready to book a flight from Trenton to Costa Rica right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Costa Rica, momondo offers a useful price alert feature which will track prices for flights to Costa Rica from Trenton and alert you when they change.

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