HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Trenton

$89+ Cheap flights from San Juan to Trenton, NJ (TTN)

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — TTN
Jan 6 — Jan 131
Tue 1/6
Tue 1/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Juan to Trenton 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 San Juan to Trenton

Cheapest flights from San Juan to Trenton
Explore the most affordable flight options available from San Juan to Trenton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 7, 2025.

This Frontier deal was found by Cheapflights users on 12/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:09 pmSJU - TTN
1 stop7h 50mFrontier
Thu 1/82:32 pmTTN - SJU
1 stop11h 18mFrontier
Deal found 12/4$192
This CheapOair deal was found by Cheapflights users on 12/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:33 amSJU - TTN
1 stop11h 41mFrontier
Sat 1/107:35 pmTTN - SJU
1 stop17h 26mFrontier
Deal found 12/6$193
This CheapOair deal was found by Cheapflights users on 12/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:09 pmSJU - TTN
1 stop7h 50mFrontier
Tue 12/309:59 pmTTN - SJU
1 stop27h 51mFrontier
Deal found 12/5$205
This Booking.com deal was found by Cheapflights users on 12/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/223:55 amSJU - TTN
1 stop21h 04mFrontier
Mon 12/299:21 pmTTN - SJU
1 stop17h 38mFrontier
Deal found 12/5$215
This Frontier deal was found by Cheapflights users on 12/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/214:09 pmSJU - TTN
1 stop8h 50mFrontier
Thu 1/82:32 pmTTN - SJU
1 stop11h 18mFrontier
Deal found 12/4$217
This CheapOair deal was found by Cheapflights users on 12/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/209:58 pmSJU - TTN
1 stop24h 16mFrontier
Mon 1/126:00 amTTN - SJU
1 stop6h 49mFrontier
Deal found 12/6$218
This Frontier deal was found by Cheapflights users on 12/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:33 amSJU - TTN
1 stop11h 41mFrontier
Fri 1/27:23 pmTTN - SJU
1 stop12h 35mFrontier
Deal found 12/6$227
This Frontier deal was found by Cheapflights users on 12/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:33 amSJU - TTN
1 stop11h 41mFrontier
Thu 1/16:10 amTTN - SJU
1 stop13h 17mFrontier
Deal found 12/7$229
This CheapOair deal was found by Cheapflights users on 12/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:09 pmSJU - TTN
1 stop7h 50mFrontier
Tue 12/309:59 pmTTN - SJU
1 stop27h 51mFrontier
Deal found 12/5$230
This Frontier deal was found by Cheapflights users on 12/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:08 amSJU - TTN
1 stop9h 08mFrontier
Thu 1/82:32 pmTTN - SJU
1 stop11h 18mFrontier
Deal found 12/5$237
This Frontier deal was found by Cheapflights users on 12/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2210:08 amSJU - TTN
1 stop7h 58mFrontier
Thu 1/16:10 amTTN - SJU
1 stop8h 49mFrontier
Deal found 12/7$238
This Frontier deal was found by Cheapflights users on 12/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2210:08 amSJU - TTN
1 stop7h 58mFrontier
Thu 1/82:32 pmTTN - SJU
1 stop11h 18mFrontier
Deal found 12/4$243

Find flight deals from San Juan to Trenton

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Trenton (TTN). 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 December 7, 2025.

Round-trip from

$193
(CheapOair)

One-way from

$89
(Super.com)

Popular in

August

Cheapest in

February

Average price

$260
From San Juan to Trenton-Mercer
Search Deals
One-way flight from San Juan to Trenton-Mercer
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Juan to Trenton 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 December 7, 2025.
Use the filters below to find and compare flights from San Juan to Trenton that are best for you.

Fly from

San Juan

Fly to

Trenton

Route

Depart

Return

Price

San JuanTrenton

SJU - TTN

SJUTTN

San Juan Luis Munoz Marin Intl

Wed 12/24

10:33 am-9:14 pm

1 stop11h 41m

Trenton-Mercer

Thu 1/8

2:32 pm-11:26 pm

1 stop7h 54m

$192

San JuanTrenton

SJU - TTN

SJUTTN

San Juan Luis Munoz Marin Intl

Tue 12/23

6:00 am-9:14 pm

1 stop16h 14m

Trenton-Mercer

Wed 1/7

8:00 am-2:50 am

1 stop17h 50m

$193

San JuanTrenton

SJU - TTN

SJUTTN

San Juan Luis Munoz Marin Intl

Tue 12/23

10:33 am-9:14 pm

1 stop11h 41m

Trenton-Mercer

Sat 1/10

7:35 pm-2:01 pm

1 stop17h 26m

$193

San JuanTrenton

SJU - TTN

SJUTTN

San Juan Luis Munoz Marin Intl

Wed 12/24

5:09 pm-11:59 pm

1 stop7h 50m

Trenton-Mercer

Tue 12/30

9:59 pm-2:50 am

1 stop27h 51m

$205

San JuanTrenton

SJU - TTN

SJUTTN

San Juan Luis Munoz Marin Intl

Thu 1/29

8:00 am-7:48 pm

1 stop12h 48m

Trenton-Mercer

Sun 2/1

12:21 pm-12:34 am

1 stop11h 13m

$215

San JuanTrenton

SJU - TTN

SJUTTN

San Juan Luis Munoz Marin Intl

Thu 1/22

8:00 am-7:48 pm

1 stop12h 48m

Trenton-Mercer

Sun 1/25

12:21 pm-12:34 am

1 stop11h 13m

$215

San JuanTrenton

SJU - TTN

SJUTTN

San Juan Luis Munoz Marin Intl

Fri 1/23

8:00 am-6:38 pm

1 stop11h 38m

Trenton-Mercer

Mon 1/26

8:27 pm-3:26 pm

1 stop17h 59m

$226

San JuanTrenton

SJU - TTN

SJUTTN

San Juan Luis Munoz Marin Intl

Wed 12/24

10:33 am-9:14 pm

1 stop11h 41m

Trenton-Mercer

Fri 1/2

7:23 pm-8:58 am

1 stop12h 35m

$227

San JuanTrenton

SJU - TTN

SJUTTN

San Juan Luis Munoz Marin Intl

Wed 12/24

10:33 am-9:14 pm

1 stop11h 41m

Trenton-Mercer

Thu 1/1

6:10 am-3:59 pm

1 stop8h 49m

$229

San JuanTrenton

SJU - TTN

SJUTTN

San Juan Luis Munoz Marin Intl

Thu 12/18

5:09 pm-11:59 pm

1 stop7h 50m

Trenton-Mercer

Tue 12/30

9:59 pm-3:59 pm

1 stop17h 00m

$230

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/5

Showing 1-10 of 19 results
1
2

Best time to book a flight from San Juan to Trenton

Have a flexible travel schedule? Discover the best time to fly to Trenton from San Juan 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 San Juan to Trenton

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

Currently, October is the cheapest month in which you can book a flight from San Juan to Trenton, New Jersey (average of $51). Flying from San Juan to Trenton, New Jersey in August is currently the most expensive (average of $100). 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 San Juan to Trenton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Trenton from San Juan?

    Trenton-Mercer (TTN), located 4.8 mi from the city center, is the airport you fly into when you book flights from San Juan to Trenton. 0 airlines have flights to Trenton-Mercer from San Juan on a regular basis. Booking flights from San Juan to Trenton-Mercer should not be difficult; the airport handles an average of 0 inbound flights from San Juan per day.

  • How long is the flight from San Juan to Trenton, New Jersey?

    For as low as $192, Frontier can have you in Trenton, New Jersey from San Juan in 11h 41m. There are 1596 mi between San Juan and Trenton, New Jersey.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Juan to Trenton 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 San Juan to Trenton, New Jersey?

    Currently, October is the cheapest month in which you can book a flight from San Juan to Trenton, New Jersey (average of $51). Flying from San Juan to Trenton, New Jersey in August is currently the most expensive (average of $100). 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

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.