Puerto Rico

$140+ Cheap flights from Trenton, NJ (TTN) to Puerto Rico

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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — SJU
Jul 29 — Aug 51
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Cheap flight deals from Trenton to Puerto Rico

Cheapest flights from Trenton to Puerto Rico
Explore the most affordable flight options available from Trenton to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/54:26 pm
TTN
-
SJU
1 stop8h 15m
Multiple Airlines
Wed 8/126:00 am
SJU
-
TTN
1 stop29h 00m
Multiple Airlines
Deal found 6/24$245
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2312:13 pm
TTN
-
SJU
1 stop27h 58m
Multiple Airlines
Sat 8/296:35 am
SJU
-
TTN
1 stop28h 48m
Multiple Airlines
Deal found 6/24$276
This Trip.com deal was found by Cheapflights users on 6/28. 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.
Sat 8/84:26 pm
TTN
-
SJU
1 stop8h 15m
Frontier
Tue 8/185:55 am
SJU
-
TTN
1 stop10h 37m
Frontier
Deal found 6/28$298
This Trip.com deal was found by Cheapflights users on 6/28. 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.
Sat 8/84:26 pm
TTN
-
SJU
1 stop8h 15m
Frontier
Tue 8/115:22 pm
SJU
-
TTN
1 stop22h 19m
Frontier
Deal found 6/28$303
This Trip.com deal was found by Cheapflights users on 6/28. 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.
Sat 8/84:26 pm
TTN
-
SJU
1 stop8h 15m
Frontier
Sun 8/166:09 pm
SJU
-
TTN
1 stop29h 31m
Frontier
Deal found 6/28$324
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/154:26 pm
TTN
-
SJU
1 stop8h 15m
Frontier
Wed 8/195:37 pm
SJU
-
TTN
1 stop22h 55m
Frontier
Deal found 6/28$328
This Frontier deal was found by Cheapflights users on 6/27. 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 7/214:26 pm
TTN
-
SJU
1 stop8h 15m
Frontier
Wed 7/2212:13 pm
SJU
-
TTN
1 stop11h 27m
Frontier
Deal found 6/27$331
This Expedia deal was found by Cheapflights users on 6/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:25 am
TTN
-
SJU
1 stop25h 32m
Frontier
Wed 7/294:08 pm
SJU
-
TTN
1 stop16h 30m
Frontier
Deal found 6/25$336
This Frontier deal was found by Cheapflights users on 6/25. 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 8/245:18 pm
TTN
-
SJU
1 stop7h 38m
Frontier
Tue 8/2512:11 pm
SJU
-
TTN
1 stop11h 29m
Frontier
Deal found 6/25$345
This Travelocity deal was found by Cheapflights users on 6/24. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/256:05 am
TTN
-
SJU
1 stop25h 52m
Frontier
Wed 8/58:37 pm
SJU
-
TTN
1 stop13h 51m
Frontier
Deal found 6/24$350

Find flight deals from Trenton to Puerto Rico

Keep the following information in mind while searching for Trenton to Puerto Rico flight deals. Data was last updated June 29, 2026.

Round-trip from

$245
(Kiwi.com)

One-way from

$140
(Trip.com)

Popular in

May

Cheapest in

October

Average price

$378
From Trenton-Mercer to Puerto Rico
One-way flight from Trenton-Mercer to Puerto Rico
Highest demand for flights based on searches. 13% potential increase in price ($52 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Average for round-trip flights in June 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Trenton to Puerto Rico 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 June 29, 2026.
Use the filters below to find and compare flights from Trenton to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Wed 7/22

6:25 am-7:57 am

1 stop25h 32m

San Juan Luis Munoz Marin Intl

Wed 8/5

4:08 pm-10:28 am

1 stop18h 20m

$336

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sat 8/22

5:18 pm-12:56 am

1 stop7h 38m

San Juan Luis Munoz Marin Intl

Wed 9/9

6:05 am-9:35 am

1 stop27h 30m

$350

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Mon 8/31

5:18 pm-12:56 am

1 stop7h 38m

San Juan Luis Munoz Marin Intl

Wed 9/2

12:11 pm-11:40 pm

1 stop11h 29m

$350

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Fri 8/28

12:49 pm-2:15 am

1 stop13h 26m

San Juan Luis Munoz Marin Intl

Tue 9/1

5:37 pm-5:42 pm

1 stop24h 05m

$356

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Wed 7/15

6:25 am-7:57 am

1 stop25h 32m

San Juan Luis Munoz Marin Intl

Wed 8/5

4:08 pm-10:28 am

1 stop18h 20m

$356

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sat 9/12

10:30 am-7:58 am

1 stop21h 28m

San Juan Luis Munoz Marin Intl

Sat 9/19

6:42 pm-9:35 am

1 stop14h 53m

$364

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Thu 8/6

11:15 am-11:43 am

1 stop24h 28m

San Juan Luis Munoz Marin Intl

Mon 8/10

5:22 pm-3:41 pm

1 stop22h 19m

$369

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Fri 8/21

6:30 am-8:11 am

1 stop25h 41m

San Juan Luis Munoz Marin Intl

Mon 8/24

9:16 am-11:40 pm

1 stop14h 24m

$370
Quickest round-trip

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Thu 9/17

10:30 am-5:36 pm

1 stop7h 06m

San Juan Luis Munoz Marin Intl

Sat 9/19

3:00 am-9:35 am

1 stop6h 35m

$370

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sun 8/16

4:26 pm-12:41 am

1 stop8h 15m

San Juan Luis Munoz Marin Intl

Thu 8/20

12:11 pm-12:04 pm

1 stop23h 53m

$370

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/25

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Trenton to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico 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 Puerto Rico
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Puerto Rico. Reviews last updated June 29, 2026.
See what other customers who have flown with Frontier from Trenton to Puerto Rico have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

4.3

Food

4.5

Crew

6.5

Boarding

5.9

Overall

5.6

Comfort

5.4

Reviews

1 / 20
2.0
Mediocre

Kevin,Jun 2026

MIA - ATL

I paid extra for seating upfront but was very cramped and had to wait for other passengers to unboard even though I paid for seating upfront front to unboard first. Reason being they were probably not going to make their connecting flights because we had to wait an hour and a half for an open gate. I had to wait on the tarmac for as long as the flight itself took. It was a horrible experience and not only should I receive a refund for my upgrade, but I should receive a refund for the entire flight. I plan on sending a formal complaint as well as letting friends and family know that frontier is a horrible choice. It is by far a better option to pay a bit more and use a different airline. My opinion may be changed if something is done to earn my business once more. Otherwise I have nothing positive to say about my experience.

Entertainment

4.3

Food

4.5

Crew

6.5

Boarding

5.9

Overall

5.6

Comfort

5.4

Reviews

1 / 20
2.0
Mediocre

Kevin,Jun 2026

MIA - ATL

I paid extra for seating upfront but was very cramped and had to wait for other passengers to unboard even though I paid for seating upfront front to unboard first. Reason being they were probably not going to make their connecting flights because we had to wait an hour and a half for an open gate. I had to wait on the tarmac for as long as the flight itself took. It was a horrible experience and not only should I receive a refund for my upgrade, but I should receive a refund for the entire flight. I plan on sending a formal complaint as well as letting friends and family know that frontier is a horrible choice. It is by far a better option to pay a bit more and use a different airline. My opinion may be changed if something is done to earn my business once more. Otherwise I have nothing positive to say about my experience.

Related info for your journey

Find useful and relevant information for your journey from Trenton to Puerto Rico. 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 from for flights from Trenton to Puerto Rico?

    Most people fly from Trenton-Mercer (TTN) if they book a flight from Trenton to Puerto Rico. Trenton-Mercer is conveniently located just 4.8 mi from Trenton’s city center.

  • How long is the flight from Trenton, New Jersey to Puerto Rico?

    There are many flights that can get you from Trenton, New Jersey to Puerto Rico in 25h 32m. Fly via Frontier to get the fastest option. Trenton, New Jersey and Puerto Rico are separated by a distance of 1596 mi.

  • Can I find deals for flights from Trenton to Puerto Rico that include hotel bookings?

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

  • How can I find direct flights from Trenton to Puerto Rico?

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

  • Can I find deals for business class flights from Trenton to Puerto Rico?

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

See more FAQs

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Alternative routes for Trenton to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Trenton to Puerto Rico

Discover the top airline that operate flights from Trenton to Puerto Rico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$168Average$324FlexibilityNo cancel feeOn-time62%

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