HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San José

$202+ Cheap flights from Trenton, NJ (TTN) to San José (SJO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — SJO
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Trenton to San José with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Trenton to San José

Discover tips and strategies to find the most affordable flight options for your journey from Trenton (TTN) to San José (SJO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 30, 2025.

Round-trip from

$561
(Trip.com)

One-way from

$202
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$497
From Trenton-Mercer to San José Juan Santamaria Intl
Search Deals
One-way flight from Trenton-Mercer to San José Juan Santamaria Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Trenton to San José

Cheapest flights from Trenton to San José
Explore the most affordable flight options available from Trenton to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Trip.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:00 amTTN - SJO
1 stop11h 13mMultiple Airlines
Mon 10/207:30 amSJO - TTN
1 stop14h 17mMultiple Airlines
Deal found 7/29$561

Cheapflights Fare Finder

 
Customize your flight search to find flights from Trenton 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, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2025.
Use the filters below to find and compare flights from Trenton to San José that are best for you.

Fly from

Trenton

Fly to

San José

Route

Depart

Return

Price

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Thu 10/16

6:00 am-3:13 pm

1 stop11h 13m

San José Juan Santamaria Intl

Mon 10/20

7:30 am-11:47 pm

1 stop14h 17m

$561

TrentonSan José

TTN - SJO

TTNSJO

Trenton-Mercer

Mon 9/1

6:00 am-3:13 pm

1 stop11h 13m

$202

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Trenton to San José

Have a flexible travel schedule? Discover the best time to fly to San José from Trenton with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Trenton to San José

What is the cheapest month to book a flight from Trenton, New Jersey to San José, San José Province?

Currently, September is the cheapest month in which you can book a flight from Trenton, New Jersey to San José, San José Province (average of $398). Flying from Trenton, New Jersey to San José, San José Province in March is currently the most expensive (average of $555). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Trenton to San José. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Trenton to San José that include hotel bookings?

    Yes. In addition to deals on Trenton to San José flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Trenton to San José?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Trenton to San José.

  • Can I find deals for business class flights from Trenton to San José?

    Yes. Cheapflights offers flight deals from Trenton to San José by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Trenton, New Jersey to San José, San José Province?

    Currently, September is the cheapest month in which you can book a flight from Trenton, New Jersey to San José, San José Province (average of $398). Flying from Trenton, New Jersey to San José, San José Province in March is currently the most expensive (average of $555). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Heredia
Manuel Antonio
Alajuela
Monteverde
Jacó

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.