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Cheap flights from Trenton, New Jersey to Costa Rica from $172

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 7/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
9:37 pm - 8:20 am
TTN
-
SJO
12h 43m
1 stop
Frontier Logo
9:35 am - 9:58 am
SJO
-
TTN
22h 23m
1 stop
$346Frontier
Sat, Jul 4 - Sat, Jul 11
Frontier Logo
9:37 pm - 8:20 am
TTN
-
SJO
12h 43m
1 stop
Frontier Logo
9:35 am - 9:47 am
SJO
-
TTN
22h 12m
1 stop
$352Frontier
Sat, Aug 1 - Thu, Aug 27
Frontier Logo
9:37 pm - 8:20 am
TTN
-
SJO
12h 43m
1 stop
Frontier Logo
9:35 am - 7:48 pm
SJO
-
TTN
8h 13m
1 stop
$358Frontier
Sat, Jul 4 - Thu, Jul 9
Frontier Logo
9:37 pm - 8:20 am
TTN
-
SJO
12h 43m
1 stop
Frontier Logo
9:35 am - 7:48 pm
SJO
-
TTN
8h 13m
1 stop
$372Frontier
Sat, Jul 4 - Thu, Jul 16
Frontier Logo
9:37 pm - 8:20 am
TTN
-
SJO
12h 43m
1 stop
Frontier Logo
9:35 am - 9:47 am
SJO
-
TTN
22h 12m
1 stop
$378Frontier
Sat, Aug 15 - Sat, Aug 22
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
$423Frontier
Wed, Aug 12 - Thu, Aug 20
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
$442Frontier
Fri, Jul 3 - Thu, Jul 16
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
$443Frontier
Fri, Aug 14 - Thu, Aug 20
Multiple Airlines Logo
8:33 pm - 8:20 am
TTN
-
SJO
13h 47m
1 stop
Multiple Airlines Logo
7:07 am - 7:48 pm
SJO
-
TTN
10h 41m
1 stop
$444Multiple Airlines
Wed, Jun 10 - Wed, Jun 17
Frontier Logo
8:44 pm - 8:19 am
TTN
-
SJO
13h 35m
1 stop
Frontier Logo
9:35 am - 7:48 pm
SJO
-
TTN
8h 13m
1 stop
$463Frontier
Sat, May 30 - Thu, Jun 11

Frontier flights from Trenton, New Jersey to Costa Rica

Our best Frontier deals on Trenton, New Jersey to Costa Rica flight tickets
Frontier
Jul 4
TTN9:37 pmTrenton-Mercer
12h 43m
1 stop
SJO8:20 amSan José Juan Santamaria Intl
Jul 11
SJO9:35 amSan José Juan Santamaria Intl
22h 23m
1 stop
TTN9:58 amTrenton-Mercer
$346
Frontier
Aug 1
TTN9:37 pmTrenton-Mercer
12h 43m
1 stop
SJO8:20 amSan José Juan Santamaria Intl
Aug 27
SJO9:35 amSan José Juan Santamaria Intl
22h 12m
1 stop
TTN9:47 amTrenton-Mercer
$352
Frontier
Jul 4
TTN9:37 pmTrenton-Mercer
12h 43m
1 stop
SJO8:20 amSan José Juan Santamaria Intl
Jul 9
SJO9:35 amSan José Juan Santamaria Intl
8h 13m
1 stop
TTN7:48 pmTrenton-Mercer
$358

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 May 12, 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

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 7/4

9:37 pm-8:20 am

1 stop12h 43m

San José Juan Santamaria Intl

Sat 7/11

9:35 am-9:58 am

1 stop22h 23m

$346

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 8/1

9:37 pm-8:20 am

1 stop12h 43m

San José Juan Santamaria Intl

Thu 8/27

9:35 am-9:47 am

1 stop22h 12m

$352
Quickest round-trip

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 7/4

9:37 pm-8:20 am

1 stop12h 43m

San José Juan Santamaria Intl

Thu 7/9

9:35 am-7:48 pm

1 stop8h 13m

$358

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 7/4

9:37 pm-8:20 am

1 stop12h 43m

San José Juan Santamaria Intl

Thu 7/16

9:35 am-7:48 pm

1 stop8h 13m

$372

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 8/15

9:37 pm-8:20 am

1 stop12h 43m

San José Juan Santamaria Intl

Sat 8/22

9:35 am-9:47 am

1 stop22h 12m

$378

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Wed 8/12

8:33 pm-8:20 am

1 stop13h 47m

San José Juan Santamaria Intl

Thu 8/20

9:35 am-7:48 pm

1 stop8h 13m

$423

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Fri 7/3

8:33 pm-8:20 am

1 stop13h 47m

San José Juan Santamaria Intl

Thu 7/16

9:35 am-7:48 pm

1 stop8h 13m

$442

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Fri 8/14

8:33 pm-8:20 am

1 stop13h 47m

San José Juan Santamaria Intl

Thu 8/20

9:35 am-7:48 pm

1 stop8h 13m

$443

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Wed 6/10

8:33 pm-8:20 am

1 stop13h 47m

San José Juan Santamaria Intl

Wed 6/17

7:07 am-7:48 pm

1 stop10h 41m

$444

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 5/30

8:44 pm-8:19 am

1 stop13h 35m

San José Juan Santamaria Intl

Thu 6/11

9:35 am-7:48 pm

1 stop8h 13m

$463

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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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 44% of people opting to fly with this airline when traveling to Costa Rica. Keep in mind that there are 11 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

12h 43m

Direct flights

None
The fastest flight from Trenton, New Jersey to Costa Rica takes 12h 43m
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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