$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
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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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 June 29, 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 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![Multiple Airlines logo]()
$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![Multiple Airlines logo]()
$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![Frontier logo]()
$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![Frontier logo]()
$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![Frontier logo]()
$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![Frontier logo]()
$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![Frontier logo]()
$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![Frontier logo]()
$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![Frontier logo]()
$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![Frontier logo]()
$350
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 June 29, 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 June 29, 2026.
This Travelocity 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 Travelocity 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 8/54:08 pm
SJU
- TTN
1 stop18h 20m
Frontier
Deal found 6/27![Frontier logo]()
$336
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.
Sat 8/225:18 pm
TTN
- SJU
1 stop7h 38m
Frontier
Wed 9/96:05 am
SJU
- TTN
1 stop27h 30m
Frontier
Deal found 6/25![Frontier logo]()
$350
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/315:18 pm
TTN
- SJU
1 stop7h 38m
Frontier
Wed 9/212:11 pm
SJU
- TTN
1 stop11h 29m
Frontier
Deal found 6/28![Frontier logo]()
$350
This Travelocity deal was found by Cheapflights users on 6/26. 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.
Fri 8/2812:49 pm
TTN
- SJU
1 stop13h 26m
Frontier
Tue 9/15:37 pm
SJU
- TTN
1 stop24h 05m
Frontier
Deal found 6/26![Frontier logo]()
$356
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:25 am
TTN
- SJU
1 stop25h 32m
Frontier
Wed 8/54:08 pm
SJU
- TTN
1 stop18h 20m
Frontier
Deal found 6/28![Frontier logo]()
$356
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1210:30 am
TTN
- SJU
1 stop21h 28m
Frontier
Sat 9/196:42 pm
SJU
- TTN
1 stop14h 53m
Frontier
Deal found 6/28![Frontier logo]()
$364
This Orbitz deal was found by Cheapflights users on 6/26. 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.
Thu 8/611:15 am
TTN
- SJU
1 stop24h 28m
Frontier
Mon 8/105:22 pm
SJU
- TTN
1 stop22h 19m
Frontier
Deal found 6/26![Frontier logo]()
$369
This Orbitz deal was found by Cheapflights users on 6/29. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:30 am
TTN
- SJU
1 stop25h 41m
Frontier
Mon 8/249:16 am
SJU
- TTN
1 stop14h 24m
Frontier
Deal found 6/29![Frontier logo]()
$370
This Expedia deal was found by Cheapflights users on 6/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:30 am
TTN
- SJU
1 stop7h 06m
Frontier
Sat 9/193:00 am
SJU
- TTN
1 stop6h 35m
Frontier
Deal found 6/29![Frontier logo]()
$370
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/164:26 pm
TTN
- SJU
1 stop8h 15m
Frontier
Thu 8/2012:11 pm
SJU
- TTN
1 stop23h 53m
Frontier
Deal found 6/24![Frontier logo]()
$370
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/309:23 am
TTN
- SJU
1 stop7h 26m
Frontier
Wed 8/53:10 am
SJU
- TTN
1 stop20h 30m
Frontier
Deal found 6/28![Frontier logo]()
$374
Last-minute flights from Trenton to Puerto RicoDiscover last-minute flight deals from Trenton to Puerto Rico. Data last updated June 29, 2026 and is based on user searches.
Discover last-minute flight deals from Trenton to Puerto Rico. Data last updated June 29, 2026 and is based on user searches.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/412:28 pm
TTN
- SJU
1 stop12h 09m
Multiple Airlines
Sat 7/116:00 am
SJU
- TTN
1 stop29h 00m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$361
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:25 am
TTN
- SJU
1 stop8h 38m
Frontier
Wed 7/158:37 pm
SJU
- TTN
1 stop12h 01m
Frontier
Deal found 6/28![Frontier logo]()
$371
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:05 am
TTN
- SJU
1 stop15h 38m
Frontier
Wed 7/225:22 pm
SJU
- TTN
1 stop22h 19m
Frontier
Deal found 6/25![Frontier logo]()
$355
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![Frontier logo]()
$331
This Booking.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 Booking.com 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
Sat 7/258:37 pm
SJU
- TTN
1 stop12h 01m
Frontier
Deal found 6/28![Frontier logo]()
$352
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![Frontier logo]()
$336
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/244:26 pm
TTN
- SJU
1 stop8h 15m
Frontier
Mon 7/273:10 am
SJU
- TTN
1 stop20h 30m
Frontier
Deal found 6/24![Frontier logo]()
$356
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![Frontier logo]()
$350
This Priceline 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 Priceline 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
Sat 8/18:37 pm
SJU
- TTN
1 stop12h 01m
Frontier
Deal found 6/25![Frontier logo]()
$364
This Travelocity 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 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
Sun 8/26:09 pm
SJU
- TTN
1 stop29h 31m
Frontier
Deal found 6/28![Frontier logo]()
$370
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/274:26 pm
TTN
- SJU
1 stop8h 15m
Frontier
Sat 8/19:02 am
SJU
- TTN
1 stop23h 36m
Frontier
Deal found 6/28![Frontier logo]()
$369
This Orbitz deal was found by Cheapflights users on 6/29. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/309:23 am
TTN
- SJU
1 stop22h 34m
Frontier
Mon 8/310:48 pm
SJU
- TTN
1 stop24h 52m
Frontier
Deal found 6/29![Frontier logo]()
$374
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 June 29, 2026.
Search for one-way flight options from Trenton to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated June 29, 2026.
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/254:26 pm
TTN
- SJU
1 stop8h 15m
Frontier
Deal found 6/27![Frontier logo]()
$140
This Super.com deal was found by Cheapflights users on 6/26. 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.
Tue 7/219:23 am
TTN
- SJU
1 stop8h 08m
Frontier
Deal found 6/26![Frontier logo]()
$165
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:15 am
TTN
- SJU
1 stop9h 34m
Frontier
Deal found 6/27![Frontier logo]()
$167
This Super.com deal was found by Cheapflights users on 6/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/14:26 pm
TTN
- SJU
1 stop8h 15m
Frontier
Deal found 6/29![Frontier logo]()
$179
This Super.com deal was found by Cheapflights users on 6/26. 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 7/184:26 pm
TTN
- SJU
1 stop8h 15m
Frontier
Deal found 6/26![Frontier logo]()
$180
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/169:23 am
TTN
- SJU
1 stop10h 09m
Frontier
Deal found 6/25![Frontier logo]()
$184
This Super.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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/144:26 pm
TTN
- SJU
1 stop8h 15m
Frontier
Deal found 6/28![Frontier logo]()
$185
This Super.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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:25 am
TTN
- SJU
1 stop8h 38m
Frontier
Deal found 6/28![Frontier logo]()
$186
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.
Thu 7/234:26 pm
TTN
- SJU
1 stop8h 15m
Frontier
Deal found 6/25![Frontier logo]()
$187
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 |
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
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
Showing 1-10 of 23 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.
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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
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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
MediocreKevin,Jun 2026
MIA - ATL
Entertainment
4.3
Food
4.5
Crew
6.5
Boarding
5.9
Overall
5.6
Comfort
5.4
Reviews
1 / 20
2.0
MediocreKevin,Jun 2026
MIA - ATL
Related info for your journey
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Alternative routes for Trenton to Puerto Rico
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Complete your trip
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Trenton and Puerto Rico flights
Browse other Trenton and Puerto Rico flight options. Last updated on June 29, 2026.
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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.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$168 | Average$324 | FlexibilityNo cancel fee | On-time62% |