$89+ 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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — SJU
Sep 12 — Sep 191
Round-trip
1 adult, Economy
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Find cheap flights from Trenton to Puerto Rico 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
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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 Puerto Rico
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One-way
Cheapest flights from Trenton to Puerto RicoExplore 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 August 13, 2026.
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 August 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 10/47:05 pm -
1 stop18h 29m
Wed 10/285:12 pm -
1 stop24h 41m
Deal found 8/13![Multiple Airlines logo]()
$166
This Frontier deal was found by Cheapflights users on 8/12. 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.
Sat 10/1011:25 am -
1 stop9h 19m
Sat 10/102:58 am -
1 stop7h 41m
Deal found 8/12![Frontier logo]()
$175
This Expedia deal was found by Cheapflights users on 8/12. 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.
Fri 9/117:39 pm -
1 stop25h 09m
Thu 9/173:55 pm -
1 stop26h 47m
Deal found 8/12![Frontier logo]()
$180
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:39 pm -
1 stop13h 56m
Fri 9/187:00 am -
1 stop11h 42m
Deal found 8/12![Frontier logo]()
$183
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/294:39 pm -
1 stop7h 18m
Sun 11/17:42 pm -
1 stop14h 53m
Deal found 8/13![Frontier logo]()
$184
This Super.com deal was found by Cheapflights users on 8/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:39 pm -
1 stop13h 56m
Tue 9/156:42 pm -
1 stop24h 00m
Deal found 8/13![Frontier logo]()
$186
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:39 pm -
1 stop17h 37m
Sat 10/105:39 pm -
1 stop17h 00m
Deal found 8/12![Frontier logo]()
$187
This Trip.com deal was found by Cheapflights users on 8/13. 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.
Wed 9/97:39 pm -
1 stop13h 56m
Sat 9/122:57 am -
1 stop15h 45m
Deal found 8/13![Frontier logo]()
$189
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:39 pm -
1 stop13h 39m
Wed 10/144:39 pm -
1 stop27h 33m
Deal found 8/13![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Mon 10/58:44 pm -
1 stop20h 01m
Wed 10/145:12 pm -
1 stop24h 36m
Deal found 8/9![Multiple Airlines logo]()
$191
This Justfly.com deal was found by Cheapflights users on 8/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:18 pm -
1 stop7h 38m
Sun 9/69:16 am -
1 stop14h 24m
Deal found 8/13![Frontier logo]()
$192
This Frontier deal was found by Cheapflights users on 8/13. 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 9/45:18 pm -
1 stop7h 38m
Sat 9/512:11 pm -
1 stop11h 29m
Deal found 8/13![Frontier logo]()
$195
Best flights from Trenton to Puerto RicoDiscover carefully curated flight deals from Trenton to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 13, 2026.
Discover carefully curated flight deals from Trenton to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 13, 2026.
This Super.com deal was found by Cheapflights users on 8/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:39 pm -
1 stop13h 56m
Thu 9/242:57 am -
1 stop15h 45m
Deal found 8/13![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Mon 11/24:39 pm -
1 stop7h 18m
Wed 11/116:12 pm -
1 stop24h 21m
Deal found 8/11![Multiple Airlines logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Fri 11/64:39 pm -
1 stop7h 18m
Thu 11/127:42 pm -
1 stop14h 53m
Deal found 8/11![Frontier logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 10/1112:08 pm -
1 stop11h 49m
Wed 10/144:39 pm -
1 stop17h 34m
Deal found 8/8![Multiple Airlines logo]()
$276
This Frontier deal was found by Cheapflights users on 8/12. 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 10/44:10 pm -
1 stop7h 48m
Sat 10/102:58 am -
1 stop7h 41m
Deal found 8/12![Frontier logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 8/8. 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.
Fri 10/910:15 am -
1 stop10h 29m
Mon 10/126:05 am -
1 stop11h 41m
Deal found 8/8![Multiple Airlines logo]()
$342
This Orbitz deal was found by Cheapflights users on 8/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/812:49 pm -
1 stop28h 54m
Tue 10/66:42 pm -
1 stop24h 00m
Deal found 8/12![Frontier logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 10/1011:25 am -
1 stop9h 19m
Thu 10/159:49 pm -
1 stop12h 50m
Deal found 8/8![Frontier logo]()
$323
This Trip.com deal was found by Cheapflights users on 8/13. 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.
Wed 9/167:39 pm -
1 stop13h 56m
Sun 9/2010:42 am -
1 stop8h 00m
Deal found 8/13![Frontier logo]()
$332
This Expedia deal was found by Cheapflights users on 8/9. 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.
Fri 9/412:49 pm -
1 stop19h 22m
Tue 9/86:09 pm -
1 stop24h 33m
Deal found 8/9![Frontier logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/237:39 pm -
1 stop27h 34m
Wed 9/305:27 pm -
2 stops21h 44m
Deal found 8/12![Frontier logo]()
$341
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:10 pm -
1 stop7h 48m
Wed 9/1610:42 am -
1 stop8h 00m
Deal found 8/12![Frontier logo]()
$343
Last-minute flights from Trenton to Puerto RicoDiscover last-minute flight deals from Trenton to Puerto Rico. Data last updated August 13, 2026 and is based on user searches.
Discover last-minute flight deals from Trenton to Puerto Rico. Data last updated August 13, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2612:49 pm -
1 stop7h 03m
Thu 9/312:11 pm -
1 stop11h 29m
Deal found 8/12![Frontier logo]()
$249
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:30 am -
1 stop10h 19m
Sat 9/512:11 pm -
1 stop11h 29m
Deal found 8/13![Frontier logo]()
$244
This Justfly.com deal was found by Cheapflights users on 8/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:49 pm -
1 stop19h 22m
Thu 9/107:00 am -
1 stop11h 42m
Deal found 8/13![Frontier logo]()
$251
This Justfly.com deal was found by Cheapflights users on 8/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:18 pm -
1 stop7h 38m
Sun 9/69:16 am -
1 stop14h 24m
Deal found 8/13![Frontier logo]()
$192
This Frontier deal was found by Cheapflights users on 8/13. 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 9/45:18 pm -
1 stop7h 38m
Sat 9/512:11 pm -
1 stop11h 29m
Deal found 8/13![Frontier logo]()
$195
This Travelocity deal was found by Cheapflights users on 8/13. 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 9/512:49 pm -
1 stop13h 26m
Sat 9/122:57 am -
1 stop15h 45m
Deal found 8/13![Frontier logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 8/8. 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.
Tue 9/85:18 pm -
1 stop7h 38m
Tue 9/156:42 pm -
1 stop24h 00m
Deal found 8/8![Frontier logo]()
$247
This Super.com deal was found by Cheapflights users on 8/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:39 pm -
1 stop13h 56m
Tue 9/156:42 pm -
1 stop24h 00m
Deal found 8/13![Frontier logo]()
$186
This Trip.com deal was found by Cheapflights users on 8/13. 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.
Wed 9/97:39 pm -
1 stop13h 56m
Sat 9/122:57 am -
1 stop15h 45m
Deal found 8/13![Frontier logo]()
$189
This Expedia deal was found by Cheapflights users on 8/12. 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.
Fri 9/117:39 pm -
1 stop25h 09m
Thu 9/173:55 pm -
1 stop26h 47m
Deal found 8/12![Frontier logo]()
$180
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:39 pm -
1 stop13h 56m
Fri 9/187:00 am -
1 stop11h 42m
Deal found 8/12![Frontier logo]()
$183
This Travelocity deal was found by Cheapflights users on 8/12. 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 9/267:39 pm -
1 stop13h 56m
Thu 10/14:39 pm -
1 stop27h 20m
Deal found 8/12![Frontier logo]()
$242
One-way flights from Trenton to Puerto RicoSearch for one-way flight options from Trenton to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated August 13, 2026.
Search for one-way flight options from Trenton to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated August 13, 2026.
This Super.com deal was found by Cheapflights users on 8/12. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:18 pm -
1 stop7h 16m
Deal found 8/12![Frontier logo]()
$89
This Expedia deal was found by Cheapflights users on 8/12. 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.
Sat 9/512:49 pm -
1 stop6h 49m
Deal found 8/12![Frontier logo]()
$90
This Super.com deal was found by Cheapflights users on 8/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:49 pm -
1 stop7h 03m
Deal found 8/13![Frontier logo]()
$150
This Super.com deal was found by Cheapflights users on 8/12. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:49 pm -
1 stop7h 03m
Deal found 8/12![Frontier logo]()
$151
This Mytrip deal was found by Cheapflights users on 8/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:18 pm -
1 stop7h 38m
Deal found 8/13![Frontier logo]()
$152
This Super.com deal was found by Cheapflights users on 8/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:49 pm -
1 stop13h 26m
Deal found 8/11![Frontier logo]()
$155
This Expedia deal was found by Cheapflights users on 8/9. 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.
Tue 9/112:49 pm -
1 stop6h 49m
Deal found 8/9![Frontier logo]()
$158
This Booking.com deal was found by Cheapflights users on 8/11. 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.
Tue 8/2512:49 pm -
1 stop13h 26m
Deal found 8/11![Frontier logo]()
$178
This Trip.com deal was found by Cheapflights users on 8/10. 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.
Sun 8/3012:49 pm -
1 stop13h 26m
Deal found 8/10![Frontier logo]()
$181
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 August 13, 2026.
Round-trip from | $166 (Kiwi.com) |
|---|---|
One-way from | $89 (Super.com) |
Popular in | July |
Cheapest in | October |
Average price | $363 |
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 August 13, 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
Cheapest round-trip
TrentonSan Juan
TTN Trenton-Mercer - SJU San Juan Luis Munoz Marin Intl
TTNSJU
Trenton-Mercer
Wed 9/23
7:39 pm-9:35 am
1 stop13h 56m
San Juan Luis Munoz Marin Intl
Thu 9/24
2:57 am-6:42 pm
1 stop15h 45m
$180
TrentonSan Juan
TTN Trenton-Mercer - SJU San Juan Luis Munoz Marin Intl
TTNSJU
Trenton-Mercer
Mon 11/2
4:39 pm-12:57 am
1 stop7h 18m
San Juan Luis Munoz Marin Intl
Wed 11/11
6:12 pm-5:33 pm
1 stop24h 21m
$250
TrentonSan Juan
TTN Trenton-Mercer - SJU San Juan Luis Munoz Marin Intl
TTNSJU
Trenton-Mercer
Fri 11/6
4:39 pm-12:57 am
1 stop7h 18m
San Juan Luis Munoz Marin Intl
Thu 11/12
7:42 pm-9:35 am
1 stop14h 53m
$263
Quickest round-trip
TrentonSan Juan
TTN Trenton-Mercer - SJU San Juan Luis Munoz Marin Intl
TTNSJU
Trenton-Mercer
Sun 10/4
4:10 pm-11:58 pm
1 stop7h 48m
San Juan Luis Munoz Marin Intl
Sat 10/10
2:58 am-10:39 am
1 stop7h 41m
$268
TrentonSan Juan
TTN Trenton-Mercer - SJU San Juan Luis Munoz Marin Intl
TTNSJU
Trenton-Mercer
Sun 10/11
12:08 pm-11:57 pm
1 stop11h 49m
San Juan Luis Munoz Marin Intl
Wed 10/14
4:39 pm-10:13 am
1 stop17h 34m
$276
TrentonSan Juan
TTN Trenton-Mercer - SJU San Juan Luis Munoz Marin Intl
TTNSJU
Trenton-Mercer
Tue 9/8
12:49 pm-5:43 pm
1 stop28h 54m
San Juan Luis Munoz Marin Intl
Tue 10/6
6:42 pm-6:42 pm
1 stop24h 00m
$316
TrentonSan Juan
TTN Trenton-Mercer - SJU San Juan Luis Munoz Marin Intl
TTNSJU
Trenton-Mercer
Sat 10/10
11:25 am-8:44 pm
1 stop9h 19m
San Juan Luis Munoz Marin Intl
Thu 10/15
9:49 pm-10:39 am
1 stop12h 50m
$323
TrentonSan Juan
TTN Trenton-Mercer - SJU San Juan Luis Munoz Marin Intl
TTNSJU
Trenton-Mercer
Wed 9/16
7:39 pm-9:35 am
1 stop13h 56m
San Juan Luis Munoz Marin Intl
Sun 9/20
10:42 am-6:42 pm
1 stop8h 00m
$332
TrentonSan Juan
TTN Trenton-Mercer - SJU San Juan Luis Munoz Marin Intl
TTNSJU
Trenton-Mercer
Fri 9/4
12:49 pm-8:11 am
1 stop19h 22m
San Juan Luis Munoz Marin Intl
Tue 9/8
6:09 pm-6:42 pm
1 stop24h 33m
$336
TrentonSan Juan
TTN Trenton-Mercer - SJU San Juan Luis Munoz Marin Intl
TTNSJU
Trenton-Mercer
Wed 9/23
7:39 pm-11:13 pm
1 stop27h 34m
San Juan Luis Munoz Marin Intl
Wed 9/30
5:27 pm-3:11 pm
2 stops21h 44m
$341
Showing 1-10 of 21 resultsSorted by cheapest first
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.
TTN-SJU
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
TTN-PR0
TTN-SJU
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 August 13, 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
Boarding
5.9
Overall
5.6
Crew
6.6
Food
4.5
Comfort
5.4
Reviews
1 / 20
2.0
MediocreAnonymous,Jul 2026
EWR - DFW
Entertainment
4.3
Boarding
5.9
Overall
5.6
Crew
6.6
Food
4.5
Comfort
5.4
Reviews
1 / 20
2.0
MediocreAnonymous,Jul 2026
EWR - DFW
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$194 | Average$364 | FlexibilityNo cancel fee | On-time62% |