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Cheap flights from Trenton, New Jersey to Costa Rica from $256

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 2/21. 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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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
3:04 pm - 10:40 am
TTN
-
SJO
20h 36m
1 stop
Multiple Airlines Logo
12:19 pm - 11:59 pm
SJO
-
TTN
33h 40m
2 stops
$390Multiple Airlines
Sat, Mar 7 - Sun, Mar 15
Multiple Airlines Logo
8:00 am - 3:18 pm
TTN
-
SJO
9h 18m
1 stop
Multiple Airlines Logo
7:00 am - 9:37 pm
SJO
-
TTN
12h 37m
1 stop
$411Multiple Airlines
Tue, May 12 - Tue, May 19
Multiple Airlines Logo
3:04 pm - 10:40 am
TTN
-
SJO
20h 36m
1 stop
Multiple Airlines Logo
11:38 am - 11:59 pm
SJO
-
TTN
10h 21m
1 stop
$451Multiple Airlines
Sat, Mar 7 - Sun, Mar 15
Multiple Airlines Logo
7:15 pm - 11:14 am
TTN
-
SJO
17h 59m
1 stop
Multiple Airlines Logo
11:38 am - 2:19 pm
SJO
-
TTN
24h 41m
1 stop
$468Multiple Airlines
Sun, Mar 22 - Sun, Mar 29
Multiple Airlines Logo
7:15 pm - 10:42 am
TTN
-
SJO
17h 27m
2 stops
Multiple Airlines Logo
11:38 am - 2:19 pm
SJO
-
TTN
24h 41m
1 stop
$492Multiple Airlines
Sun, Mar 22 - Sun, Mar 29
Frontier Logo
6:41 pm - 12:12 pm
TTN
-
SJO
19h 31m
2 stops
Frontier Logo
1:27 pm - 8:09 am
SJO
-
TTN
16h 42m
2 stops
$845Frontier
Sat, Apr 4 - Thu, Apr 9
Frontier Logo
3:18 pm - 9:01 am
TTN
-
SJO
19h 43m
1 stop
Frontier Logo
10:06 am - 11:39 pm
SJO
-
TTN
11h 33m
1 stop
$1,165Frontier
Fri, Apr 3 - Sat, Apr 11
Frontier Logo
6:41 pm - 12:12 pm
TTN
-
SJO
19h 31m
2 stops
Frontier Logo
10:06 am - 11:39 pm
SJO
-
TTN
11h 33m
1 stop
$1,333Frontier
Sat, Apr 4 - Sat, Apr 11

Frontier flights from Trenton, New Jersey to Costa Rica

Our best Frontier deals on Trenton, New Jersey to Costa Rica flight tickets
Frontier
Apr 4
TTN6:41 pmTrenton-Mercer
19h 31m
2 stops
SJO12:12 pmSan José Juan Santamaria Intl
Apr 9
SJO1:27 pmSan José Juan Santamaria Intl
16h 42m
2 stops
TTN8:09 amTrenton-Mercer
$845
Frontier
Apr 3
TTN3:18 pmTrenton-Mercer
19h 43m
1 stop
SJO9:01 amSan José Juan Santamaria Intl
Apr 11
SJO10:06 amSan José Juan Santamaria Intl
11h 33m
1 stop
TTN11:39 pmTrenton-Mercer
$1,165
Frontier
Apr 4
TTN6:41 pmTrenton-Mercer
19h 31m
2 stops
SJO12:12 pmSan José Juan Santamaria Intl
Apr 11
SJO10:06 amSan José Juan Santamaria Intl
11h 33m
1 stop
TTN11:39 pmTrenton-Mercer
$1,333

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 February 5, 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

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 3/7

3:04 pm-10:40 am

1 stop20h 36m

San José Juan Santamaria Intl

Sun 3/15

12:19 pm-11:59 pm

2 stops33h 40m

$390

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Tue 5/12

8:00 am-3:18 pm

1 stop9h 18m

San José Juan Santamaria Intl

Tue 5/19

7:00 am-9:37 pm

1 stop12h 37m

$411

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 3/7

3:04 pm-10:40 am

1 stop20h 36m

San José Juan Santamaria Intl

Sun 3/15

11:38 am-11:59 pm

1 stop10h 21m

$451

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sun 3/22

7:15 pm-11:14 am

1 stop17h 59m

San José Juan Santamaria Intl

Sun 3/29

11:38 am-2:19 pm

1 stop24h 41m

$468

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sun 3/22

7:15 pm-10:42 am

2 stops17h 27m

San José Juan Santamaria Intl

Sun 3/29

11:38 am-2:19 pm

1 stop24h 41m

$492

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 4/4

6:41 pm-12:12 pm

2 stops19h 31m

San José Juan Santamaria Intl

Thu 4/9

1:27 pm-8:09 am

2 stops16h 42m

$845

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Fri 4/3

3:18 pm-9:01 am

1 stop19h 43m

San José Juan Santamaria Intl

Sat 4/11

10:06 am-11:39 pm

1 stop11h 33m

$1,165

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 4/4

6:41 pm-12:12 pm

2 stops19h 31m

San José Juan Santamaria Intl

Sat 4/11

10:06 am-11:39 pm

1 stop11h 33m

$1,333

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 2/21

8:00 am-3:20 pm

1 stop8h 20m

$256

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Thu 2/12

6:00 am-3:20 pm

1 stop10h 20m

$355

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 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 40% 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

9h 18m

Direct flights

None
The fastest flight from Trenton, New Jersey to Costa Rica takes 9h 18m
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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