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Cheap flights from Trenton, New Jersey to San José from $312

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 San José departing on 6/17. 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 San José

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:13 pm - 11:27 am
TTN
-
SJO
25h 14m
1 stop
Multiple Airlines Logo
8:13 pm - 6:30 pm
SJO
-
TTN
20h 17m
2 stops
$695Multiple Airlines
Thu, Aug 20 - Mon, Aug 24
Multiple Airlines Logo
6:00 am - 10:42 am
TTN
-
SJO
30h 42m
1 stop
Multiple Airlines Logo
7:48 pm - 6:25 pm
SJO
-
TTN
20h 37m
2 stops
$755Multiple Airlines
Sat, Mar 14 - Sat, Mar 21
Multiple Airlines Logo
3:04 pm - 11:14 am
TTN
-
SJO
22h 10m
2 stops
Multiple Airlines Logo
11:38 am - 11:39 pm
SJO
-
TTN
10h 01m
1 stop
$793Multiple Airlines
Mon, Apr 6 - Mon, Apr 13
Multiple Airlines Logo
10:24 am - 8:30 am
TTN
-
SJO
24h 06m
3 stops
Multiple Airlines Logo
11:38 am - 11:39 pm
SJO
-
TTN
10h 01m
1 stop
$813Multiple Airlines
Mon, Apr 6 - Mon, Apr 13
Multiple Airlines Logo
3:04 pm - 10:42 am
TTN
-
SJO
21h 38m
1 stop
Multiple Airlines Logo
11:38 am - 11:39 pm
SJO
-
TTN
10h 01m
1 stop
$872Multiple Airlines
Mon, Apr 6 - Mon, Apr 13
Multiple Airlines Logo
6:00 am - 10:42 am
TTN
-
SJO
30h 42m
1 stop
Multiple Airlines Logo
12:19 pm - 6:25 pm
SJO
-
TTN
28h 06m
1 stop
$949Multiple Airlines
Sat, Mar 14 - Sat, Mar 21
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
$1,263Frontier
Sat, Apr 4 - Sat, Apr 11
Frontier Logo
8:38 pm - 12:12 pm
TTN
-
SJO
17h 34m
2 stops
Frontier Logo
10:06 am - 11:39 pm
SJO
-
TTN
11h 33m
1 stop
$1,389Frontier
Sat, Apr 4 - Sat, Apr 11
Frontier Logo
8:38 pm - 12:12 pm
TTN
-
SJO
17h 34m
2 stops
Frontier Logo
12:59 pm - 10:04 am
SJO
-
TTN
19h 05m
2 stops
$2,223Frontier
Sat, Apr 4 - Sat, Apr 11

Frontier flights from Trenton, New Jersey to San José

Our best Frontier deals on Trenton, New Jersey to San José flight tickets
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
$1,263
Frontier
Apr 4
TTN8:38 pmTrenton-Mercer
17h 34m
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
$1,389
Frontier
Apr 4
TTN8:38 pmTrenton-Mercer
17h 34m
2 stops
SJO12:12 pmSan José Juan Santamaria Intl
Apr 11
SJO12:59 pmSan José Juan Santamaria Intl
19h 05m
2 stops
TTN10:04 amTrenton-Mercer
$2,223

momondo Fare Finder

 
Customize your flight search to find flights from Trenton, New Jersey to San José 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 22, 2026.
Use the filters below to find and compare flights from Trenton, New Jersey to San José that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Thu 8/20

12:13 pm-11:27 am

1 stop25h 14m

San José Juan Santamaria Intl

Mon 8/24

8:13 pm-6:30 pm

2 stops20h 17m

$695

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 3/14

6:00 am-10:42 am

1 stop30h 42m

San José Juan Santamaria Intl

Sat 3/21

7:48 pm-6:25 pm

2 stops20h 37m

$755

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Mon 4/6

3:04 pm-11:14 am

2 stops22h 10m

San José Juan Santamaria Intl

Mon 4/13

11:38 am-11:39 pm

1 stop10h 01m

$793

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Mon 4/6

10:24 am-8:30 am

3 stops24h 06m

San José Juan Santamaria Intl

Mon 4/13

11:38 am-11:39 pm

1 stop10h 01m

$813

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Mon 4/6

3:04 pm-10:42 am

1 stop21h 38m

San José Juan Santamaria Intl

Mon 4/13

11:38 am-11:39 pm

1 stop10h 01m

$872

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 3/14

6:00 am-10:42 am

1 stop30h 42m

San José Juan Santamaria Intl

Sat 3/21

12:19 pm-6:25 pm

1 stop28h 06m

$949

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

$1,263

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 4/4

8:38 pm-12:12 pm

2 stops17h 34m

San José Juan Santamaria Intl

Sat 4/11

10:06 am-11:39 pm

1 stop11h 33m

$1,389

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Sat 4/4

8:38 pm-12:12 pm

2 stops17h 34m

San José Juan Santamaria Intl

Sat 4/11

12:59 pm-10:04 am

2 stops19h 05m

$2,223

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Wed 6/17

7:15 pm-8:45 am

1 stop15h 30m

$312

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Trenton, New Jersey to San José

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 day to depart on your flight to San José?

On average, the least expensive day to fly to San José from Trenton, New Jersey is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $441. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Trenton, New Jersey to San José on a Sunday will generally be more expensive and average around $531. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to San José?

Our data shows that the cheapest Trenton, New Jersey to San José flights are usually those with departure times in the evening. Our users have found flights to San José in the evening for as low as $434. Flights in the afternoon are often more expensive with an average ticket price of $500.

When to book flights from Trenton, New Jersey to San José

Are you open to changing your travel dates? Check out the ideal times to fly from Trenton, New Jersey to San José according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Trenton, New Jersey to San José (TTN to SJO) flight deals and tips

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

Fastest flight time

8h 20m

Direct flights

None
The fastest flight from Trenton, New Jersey to San José takes 8h 20m
There are no direct flights from Trenton, New Jersey to San José. There are no popular flight routes from Trenton, New Jersey to San José.
Search flight deals

  • How far is Trenton-Mercer to San José Juan Santamaria Intl by plane?

    San José Juan Santamaria Intl is 2168.1 mi away from Trenton-Mercer. 8h 20m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Trenton-Mercer Airport to San José Juan Santamaria Intl Airport?

    Prices for flights from Trenton-Mercer Airport to San José Juan Santamaria Intl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Trenton-Mercer Airport to San José Juan Santamaria Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Trenton-Mercer Airport to San José Juan Santamaria Intl Airport.

  • What documentation or ID do you need to fly to San José Juan Santamaria Intl Airport?

    The necessary travel and health documents for your San José Juan Santamaria Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Manuel Antonio
Jacó
Monteverde
Alajuela
Heredia
Dominical
San Gerardo de Dota
Santa Elena
Esterillos Este

Why use momondo?

Why should I use momondo to find a flight deal from Trenton to San José?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San José from Trenton.

Can I find flights from Trenton to San José with flexible booking policies on momondo?

momondo does allow users to show only those flights to San José 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 San José?

Once you have performed a search for Trenton to San José flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to San José from Trenton are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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