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Luis Munoz Marin Intl

$86+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — SJU
Jan 29 — Feb 51
Thu 1/29
Thu 2/5
1 adult, Economy
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Cheap 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 December 30, 2025.

This Frontier deal was found by Cheapflights users on 12/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:59 pmTTN - SJU
1 stop10h 24mFrontier
Thu 1/86:30 amSJU - TTN
1 stop13h 43mFrontier
Deal found 12/29$413
This CheapOair deal was found by Cheapflights users on 12/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:59 pmTTN - SJU
1 stop14h 35mFrontier
Wed 1/79:19 pmSJU - TTN
1 stop22h 54mFrontier
Deal found 12/28$414
This Gotogate deal was found by Cheapflights users on 12/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:59 pmTTN - SJU
1 stop10h 24mFrontier
Wed 1/79:23 pmSJU - TTN
1 stop17h 09mFrontier
Deal found 12/28$432
This Frontier deal was found by Cheapflights users on 12/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:59 pmTTN - SJU
1 stop10h 24mFrontier
Sun 1/116:15 amSJU - TTN
1 stop8h 17mFrontier
Deal found 12/29$447
This Kiwi.com deal was found by Cheapflights users on 12/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:59 pmTTN - SJU
1 stop14h 35mFrontier
Tue 1/69:23 pmSJU - TTN
1 stop25h 33mFrontier
Deal found 12/29$483
This Booking.com deal was found by Cheapflights users on 12/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:59 pmTTN - SJU
1 stop21h 28mFrontier
Mon 1/56:00 amSJU - TTN
1 stop15h 26mFrontier
Deal found 12/29$575
This Booking.com deal was found by Cheapflights users on 12/28. 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 12/309:59 pmTTN - SJU
1 stop10h 24mFrontier
Wed 12/313:55 amSJU - TTN
1 stop21h 04mFrontier
Deal found 12/28$592
This Expedia deal was found by Cheapflights users on 12/28. 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.
Tue 12/309:59 pmTTN - SJU
1 stop10h 24mFrontier
Mon 1/510:33 amSJU - TTN
1 stop10h 53mFrontier
Deal found 12/28$612
This Kiwi.com deal was found by Cheapflights users on 12/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:59 pmTTN - SJU
2 stops17h 45mMultiple Airlines
Tue 1/68:00 amSJU - TTN
1 stop14h 56mMultiple Airlines
Deal found 12/29$624
This Gotogate deal was found by Cheapflights users on 12/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:59 pmTTN - SJU
1 stop10h 24mFrontier
Fri 1/210:08 amSJU - TTN
1 stop9h 08mFrontier
Deal found 12/29$631
This Kiwi.com deal was found by Cheapflights users on 12/28. 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.
Wed 12/319:59 pmTTN - SJU
1 stop10h 24mMultiple Airlines
Sat 1/34:55 pmSJU - TTN
1 stop8h 04mMultiple Airlines
Deal found 12/28$645

Find 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 December 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$172
(Frontier)

One-way from

$86
(Frontier)

Popular in

September

Cheapest in

January

Average price

$385
Provider with most accurate pricing for Trenton-Mercer-San Juan Luis Munoz Marin Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Trenton-Mercer-San Juan Luis Munoz Marin Intl flights.
Search Deals
From Trenton-Mercer to San Juan Luis Munoz Marin Intl
Search Deals
One-way flight from Trenton-Mercer to San Juan Luis Munoz Marin Intl
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($18 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 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 December 30, 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

Sat 1/24

8:19 pm-9:54 am

1 stop12h 35m

San Juan Luis Munoz Marin Intl

Tue 1/27

8:00 am-2:26 pm

1 stop7h 26m

$172

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sat 2/28

6:56 pm-2:53 am

1 stop6h 57m

San Juan Luis Munoz Marin Intl

Tue 3/3

5:25 pm-11:39 pm

1 stop7h 14m

$172

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sat 2/7

12:04 pm-11:59 pm

1 stop10h 55m

San Juan Luis Munoz Marin Intl

Wed 2/11

5:25 pm-11:39 pm

1 stop7h 14m

$172

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Tue 1/27

3:21 pm-11:59 pm

1 stop7h 38m

San Juan Luis Munoz Marin Intl

Wed 2/4

8:00 am-2:26 pm

1 stop7h 26m

$176

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sat 2/28

6:56 pm-2:53 am

1 stop6h 57m

San Juan Luis Munoz Marin Intl

Sun 3/1

3:53 am-11:09 am

1 stop8h 16m

$176

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Thu 1/22

12:04 pm-11:59 pm

1 stop10h 55m

San Juan Luis Munoz Marin Intl

Wed 1/28

8:00 am-2:26 pm

1 stop7h 26m

$176

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sat 1/24

8:19 pm-9:54 am

1 stop12h 35m

San Juan Luis Munoz Marin Intl

Sat 1/31

8:00 am-7:24 pm

1 stop12h 24m

$176

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sat 1/31

12:04 pm-11:59 pm

1 stop10h 55m

San Juan Luis Munoz Marin Intl

Tue 2/3

8:00 am-2:26 pm

1 stop7h 26m

$176

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Thu 1/29

8:38 pm-11:59 pm

1 stop26h 21m

San Juan Luis Munoz Marin Intl

Wed 2/4

8:00 am-11:09 am

1 stop28h 09m

$177

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Tue 1/27

3:21 pm-3:26 pm

1 stop23h 05m

San Juan Luis Munoz Marin Intl

Tue 2/3

8:00 am-2:26 pm

1 stop7h 26m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/28

Showing 1-10 of 22 results
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Compare providers for flights from Trenton to Luis Munoz Marin Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Trenton to Luis Munoz Marin Intl in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Trenton, New Jersey-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Trenton, New Jersey-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Trenton, New Jersey-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Trenton, New Jersey-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Trenton, New Jersey-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, January 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 $71). Flying from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport in August is currently the most expensive (average of $138). 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.

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 December 30, 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
5.7
Fair
3,065 reviews

Crew

6.6

Entertainment

4.4

Comfort

5.5

Food

4.6

Overall

5.7

Boarding

6.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

ATL - MDW

Flight was canceled. Late notification and limited help with booking another flight.
Frontier
5.7
Fair
3,065 reviews
Frontier
5.7
Fair
3,065 reviews

Crew

6.6

Entertainment

4.4

Comfort

5.5

Food

4.6

Overall

5.7

Boarding

6.0

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

ATL - MDW

Flight was canceled. Late notification and limited help with booking another flight.

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.

  • How long is the flight from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport?

    A quick flight from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport can take about 12h 35m. Frontier provides one of the quickest options available for as low as $172. The distance from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport is about 1596 mi.

  • 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 51% 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, January 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 $71). Flying from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport in August is currently the most expensive (average of $138). 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
Humacao
Luquillo
Bayamón

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 December 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$143Average$356FlexibilityNo cancel feeOn-time62%

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