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Luis Munoz Marin Intl

$124+ Cheap flights from Trenton, NJ (TTN) to Luis Munoz Marin Intl (SJU)

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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — SJU
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Trenton to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Trenton (TTN) to Luis Munoz Marin Intl (SJU). 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 August 14, 2025.

Round-trip from

$271
(CheapOair)

One-way from

$124
(CheapOair)

Popular in

December

Cheapest in

March

Average price

$149
From Trenton-Mercer to San Juan Luis Munoz Marin Intl
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One-way flight from Trenton-Mercer to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 39% potential increase in price ($180 potential increase over avg. RT price).
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Cheapest flight prices on average. 20% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Trenton to Luis Munoz Marin Intl

Cheapest flights from Trenton to Luis Munoz Marin Intl
Explore the most affordable flight options available from Trenton to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1710:19 amTTN - SJU
1 stop13h 10mFrontier
Wed 10/221:17 pmSJU - TTN
1 stop20h 57mFrontier
Deal found 8/13$271
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/251:00 pmTTN - SJU
1 stop13h 50mFrontier
Wed 8/278:13 pmSJU - TTN
1 stop26h 30mFrontier
Deal found 8/13$277
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/185:15 pmTTN - SJU
1 stop25h 53mFrontier
Thu 8/213:59 amSJU - TTN
1 stop19h 57mFrontier
Deal found 8/12$278
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.
Tue 8/198:00 amTTN - SJU
1 stop11h 08mFrontier
Thu 9/49:07 amSJU - TTN
1 stop25h 53mFrontier
Deal found 8/13$281
This CheapOair deal was found by Cheapflights users on 8/14. 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.
Mon 8/185:15 pmTTN - SJU
1 stop25h 53mFrontier
Wed 8/208:13 pmSJU - TTN
1 stop14h 07mFrontier
Deal found 8/14$284
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:00 amTTN - SJU
1 stop20h 30mFrontier
Sun 10/263:40 amSJU - TTN
1 stop20h 19mFrontier
Deal found 8/13$285
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1010:19 amTTN - SJU
1 stop13h 10mFrontier
Sat 10/113:40 amSJU - TTN
1 stop6h 34mFrontier
Deal found 8/13$286
This Booking.com deal was found by Cheapflights users on 8/14. 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.
Sun 8/243:36 pmTTN - SJU
1 stop27h 32mFrontier
Thu 9/49:07 amSJU - TTN
1 stop25h 53mFrontier
Deal found 8/14$287
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/138:30 amTTN - SJU
1 stop24h 34mFrontier
Fri 8/153:34 amSJU - TTN
1 stop20h 25mFrontier
Deal found 8/12$288
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/145:15 pmTTN - SJU
1 stop9h 24mFrontier
Fri 8/153:34 amSJU - TTN
1 stop13h 14mFrontier
Deal found 8/13$289
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/176:00 amTTN - SJU
1 stop7h 02mFrontier
Sat 10/183:40 amSJU - TTN
1 stop6h 34mFrontier
Deal found 8/13$290

Cheapflights Fare Finder

 
Customize your flight search to find flights from Trenton to Luis Munoz Marin Intl 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 14, 2025.
Use the filters below to find and compare flights from Trenton to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Trenton

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Fri 10/17

10:19 am-11:29 pm

1 stop13h 10m

San Juan Luis Munoz Marin Intl

Wed 10/22

1:17 pm-10:14 am

1 stop20h 57m

$271

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Mon 9/8

11:45 am-2:34 am

1 stop14h 49m

San Juan Luis Munoz Marin Intl

Thu 9/11

4:42 pm-11:00 am

1 stop18h 18m

$277

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Mon 8/25

1:00 pm-2:50 am

1 stop13h 50m

San Juan Luis Munoz Marin Intl

Wed 8/27

8:13 pm-10:43 pm

1 stop26h 30m

$277

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Fri 9/12

11:45 am-2:34 am

1 stop14h 49m

San Juan Luis Munoz Marin Intl

Fri 9/26

3:39 am-11:00 am

1 stop7h 21m

$284

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Mon 9/22

11:45 am-11:59 pm

1 stop12h 14m

San Juan Luis Munoz Marin Intl

Fri 9/26

3:39 am-11:00 am

1 stop7h 21m

$284

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Mon 9/22

11:45 am-11:59 pm

1 stop12h 14m

San Juan Luis Munoz Marin Intl

Wed 9/24

3:39 am-11:00 am

1 stop7h 21m

$284

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Wed 8/27

8:00 am-2:50 am

1 stop18h 50m

San Juan Luis Munoz Marin Intl

Thu 8/28

3:59 am-11:56 pm

1 stop19h 57m

$284

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sat 11/15

8:00 am-2:54 am

1 stop17h 54m

San Juan Luis Munoz Marin Intl

Sun 11/16

3:59 am-11:59 pm

1 stop21h 00m

$284

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sat 8/30

8:00 am-7:18 pm

1 stop11h 18m

San Juan Luis Munoz Marin Intl

Fri 9/5

3:39 am-11:00 am

1 stop7h 21m

$284

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Fri 8/29

6:00 am-2:50 am

1 stop20h 50m

San Juan Luis Munoz Marin Intl

Thu 9/4

9:07 am-11:00 am

1 stop25h 53m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 21 results
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Best time to book a flight from Trenton to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl 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 Juan Luis Munoz Marin Intl Airport

What is the cheapest month to book a flight from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). 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.

What is the cheapest time of day to fly from TTN to SJU?

Find hourly flight availability from Trenton to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

It’s typically best to fly out from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport in the afternoon. Doing so could potentially save you 16% on the flight price compared to flying at noon, which is usually more expensive.

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated August 14, 2025.
Peruse reviews from past customers who have flown with Frontier from Trenton to San Juan Luis Munoz Marin Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Frontier
5.8
Fair
3,217 reviews

Crew

6.7

Comfort

5.6

Boarding

6.1

Overall

5.8

Entertainment

4.5

Food

4.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

TTN - TPA

TTN is a small airport for Frontier. Drop off is easy as is parking. The location is remote so there is zero traffic. The place could use a renovation but for the price you pay it is not necessary. Good-Staff is very friendly. Flight left on time. Bad- run down, deplaning/boarding on the tarmac. I got wet on the stairs outside of the plane while waiting to board.
Frontier
5.8
Fair
3,217 reviews
Frontier
5.8
Fair
3,217 reviews

Crew

6.7

Comfort

5.6

Boarding

6.1

Overall

5.8

Entertainment

4.5

Food

4.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

TTN - TPA

TTN is a small airport for Frontier. Drop off is easy as is parking. The location is remote so there is zero traffic. The place could use a renovation but for the price you pay it is not necessary. Good-Staff is very friendly. Flight left on time. Bad- run down, deplaning/boarding on the tarmac. I got wet on the stairs outside of the plane while waiting to board.

Related info for your journey

Find useful and relevant information for your journey from Trenton to Luis Munoz Marin Intl. 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 San Juan Luis Munoz Marin Intl?

    Trenton-Mercer (TTN), located 4.8 mi from the city center, is the airport you fly out of when you book flights from Trenton to San Juan Luis Munoz Marin Intl. 1 airline have flights from Trenton-Mercer to San Juan Luis Munoz Marin Intl on a regular basis. Booking flights from Trenton-Mercer to San Juan Luis Munoz Marin Intl should not be difficult; the airport handles an average of 0 outbound flights to San Juan Luis Munoz Marin Intl per day.

  • What is the cheapest airline to fly from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport round-trip?

    Our cheapest airline available from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport is Frontier. Our recent data shows that you can find tickets from as low as $119 on this airline. You may be able to fly from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport for 57% less than the average price by searching for this airline.

  • Can I find deals for flights from Trenton to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Trenton to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Trenton to Luis Munoz Marin Intl?

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

  • Can I find deals for business class flights from Trenton to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Trenton to Luis Munoz Marin Intl 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 Juan Luis Munoz Marin Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). 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 Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Dorado
Fajardo
Rio Grande
Luquillo
Humacao

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Trenton to Luis Munoz Marin Intl

Discover the top airline that operate flights from Trenton to Luis Munoz Marin Intl. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$119Average$278FlexibilityNo cancel feeOn-time62%

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