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Cheap flights from Trenton, New Jersey to Costa Rica from $123

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 1/2. 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
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.
Multiple Airlines Logo
3:21 pm - 12:22 pm
TTN
-
SJO
46h 01m2 stops
Multiple Airlines Logo
12:33 pm - 11:39 pm
SJO
-
TTN
10h 06m1 stop
$351Multiple Airlines
Tue, Feb 3 - Tue, Feb 10
Multiple Airlines Logo
3:21 pm - 11:37 am
TTN
-
SJO
21h 16m1 stop
Multiple Airlines Logo
12:33 pm - 11:39 pm
SJO
-
TTN
10h 06m1 stop
$358Multiple Airlines
Tue, Feb 3 - Tue, Feb 10
Multiple Airlines Logo
9:59 pm - 11:37 am
TTN
-
SJO
14h 38m1 stop
Multiple Airlines Logo
8:05 pm - 11:09 am
SJO
-
TTN
38h 04m2 stops
$429Multiple Airlines
Fri, Jan 16 - Thu, Jan 22
Multiple Airlines Logo
9:59 pm - 11:37 am
TTN
-
SJO
14h 38m1 stop
Multiple Airlines Logo
12:33 pm - 6:38 pm
SJO
-
TTN
29h 05m1 stop
$447Multiple Airlines
Fri, Jan 16 - Thu, Jan 22
Multiple Airlines Logo
6:00 am - 3:16 pm
TTN
-
SJO
11h 16m1 stop
Multiple Airlines Logo
7:30 am - 11:59 pm
SJO
-
TTN
14h 29m1 stop
$501Multiple Airlines
Fri, Mar 27 - Fri, Apr 3

Frontier flights from Trenton, New Jersey to Costa Rica

Our best Frontier deals on Trenton, New Jersey to Costa Rica flight tickets
Frontier
Dec 30
TTN9:59 pmTrenton-Mercer
16h 43m
2 stops
SJO1:42 pmSan José Juan Santamaria Intl
Jan 3
SJO10:36 amSan José Juan Santamaria Intl
12h 23m
1 stop
TTN11:59 pmTrenton-Mercer
$961
Find similar
Frontier
Dec 26
TTN9:11 pmTrenton-Mercer
13h 10m
1 stop
SJO9:21 amSan José Juan Santamaria Intl
Dec 31
SJO2:52 pmSan José Juan Santamaria Intl
29h 22m
2 stops
TTN9:14 pmTrenton-Mercer
$991
Find similar
Frontier
Dec 30
TTN9:59 pmTrenton-Mercer
16h 43m
2 stops
SJO1:42 pmSan José Juan Santamaria Intl
Jan 3
SJO10:36 amSan José Juan Santamaria Intl
12h 23m
1 stop
TTN11:59 pmTrenton-Mercer
$994
Find similar

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 December 21, 2025.
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

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Tue 2/3

3:21 pm-12:22 pm

2 stops46h 01m

San José Juan Santamaria Intl

Tue 2/10

12:33 pm-11:39 pm

1 stop10h 06m

$351

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Tue 2/3

3:21 pm-11:37 am

1 stop21h 16m

San José Juan Santamaria Intl

Tue 2/10

12:33 pm-11:39 pm

1 stop10h 06m

$358

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Fri 1/16

9:59 pm-11:37 am

1 stop14h 38m

San José Juan Santamaria Intl

Thu 1/22

8:05 pm-11:09 am

2 stops38h 04m

$429

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Fri 1/16

9:59 pm-11:37 am

1 stop14h 38m

San José Juan Santamaria Intl

Thu 1/22

12:33 pm-6:38 pm

1 stop29h 05m

$447

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Fri 3/27

6:00 am-3:16 pm

1 stop11h 16m

San José Juan Santamaria Intl

Fri 4/3

7:30 am-11:59 pm

1 stop14h 29m

$501

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Fri 1/2

9:11 pm-9:21 am

1 stop13h 10m

$123

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sun 1/11

6:00 am-1:36 pm

2 stops32h 36m

$133

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Mon 1/12

6:00 am-11:40 pm

2 stops18h 40m

$156

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Fri 1/16

9:59 pm-1:42 pm

2 stops16h 43m

$201

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Thu 1/1

6:10 am-3:20 pm

1 stop10h 10m

$207

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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 39% 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

11h 16m

Direct flights

None
The fastest flight from Trenton, New Jersey to Costa Rica takes 11h 16m
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.
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  • 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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