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Luis Munoz Marin Intl

$125+ 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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — SJU
Oct 29 — Nov 51
Wed 10/29
Wed 11/5
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 September 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$244
(Trip.com)

One-way from

$125
(Cheapflightsfares)

Popular in

December

Cheapest in

March

Average price

$400
Provider with most accurate pricing for Trenton-Mercer-San Juan Luis Munoz Marin Intl flight deals.
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Provider most trusted by Cheapflights users for Trenton-Mercer-San Juan Luis Munoz Marin Intl flights.
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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. 30% potential increase in price ($132 potential increase over avg. RT price).
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Cheapest flight prices on average. 16% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 29, 2025.

This Trip.com deal was found by Cheapflights users on 9/27. 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.
Fri 10/246:00 amTTN - SJU
1 stop7h 02mFrontier
Sun 10/263:40 amSJU - TTN
1 stop20h 19mFrontier
Deal found 9/27$244
This Trip.com deal was found by Cheapflights users on 9/27. 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.
Thu 10/304:27 pmTTN - SJU
1 stop9h 27mFrontier
Sat 11/13:04 amSJU - TTN
1 stop13h 28mFrontier
Deal found 9/27$246
This Trip.com deal was found by Cheapflights users on 9/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/94:27 pmTTN - SJU
1 stop9h 27mFrontier
Sun 11/167:30 amSJU - TTN
1 stop14h 04mFrontier
Deal found 9/26$247
This Trip.com deal was found by Cheapflights users on 9/27. 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 10/258:00 amTTN - SJU
1 stop25h 42mFrontier
Sat 11/112:29 pmSJU - TTN
1 stop11h 30mFrontier
Deal found 9/27$248
This Cheapflightsfares deal was found by Cheapflights users on 9/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:00 amTTN - SJU
1 stop7h 02mFrontier
Sat 10/253:40 amSJU - TTN
1 stop6h 34mFrontier
Deal found 9/28$249
This CheapOair deal was found by Cheapflights users on 9/28. 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.
Fri 10/311:45 amTTN - SJU
1 stop14h 49mFrontier
Tue 10/73:40 amSJU - TTN
1 stop17h 10mFrontier
Deal found 9/28$252
This Mytrip deal was found by Cheapflights users on 9/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:00 amTTN - SJU
1 stop29h 19mFrontier
Fri 10/3110:39 pmSJU - TTN
1 stop25h 20mFrontier
Deal found 9/27$253
This Booking.com deal was found by Cheapflights users on 9/28. 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.
Sun 10/194:25 pmTTN - SJU
1 stop15h 30mFrontier
Thu 10/239:19 pmSJU - TTN
1 stop26h 40mFrontier
Deal found 9/28$254
This Booking.com deal was found by Cheapflights users on 9/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/611:45 amTTN - SJU
1 stop14h 49mFrontier
Wed 10/81:17 pmSJU - TTN
1 stop7h 33mFrontier
Deal found 9/27$255
This CheapOair deal was found by Cheapflights users on 9/28. 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.
Fri 10/1710:19 amTTN - SJU
1 stop13h 10mFrontier
Mon 10/202:07 pmSJU - TTN
1 stop9h 52mFrontier
Deal found 9/28$273

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 September 29, 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

Sun 11/9

4:27 pm-2:54 am

1 stop9h 27m

San Juan Luis Munoz Marin Intl

Sun 11/16

7:30 am-8:34 pm

1 stop14h 04m

$247

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Thu 10/9

9:00 am-3:32 pm

1 stop6h 32m

San Juan Luis Munoz Marin Intl

Sat 10/18

3:40 am-10:14 am

1 stop6h 34m

$249

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Fri 10/24

6:00 am-1:02 pm

1 stop7h 02m

San Juan Luis Munoz Marin Intl

Sat 10/25

3:40 am-10:14 am

1 stop6h 34m

$249

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Mon 10/27

6:00 am-11:19 am

1 stop29h 19m

San Juan Luis Munoz Marin Intl

Sun 11/2

3:59 am-11:59 pm

1 stop21h 00m

$252

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Thu 10/9

9:00 am-9:42 am

1 stop24h 42m

San Juan Luis Munoz Marin Intl

Sat 10/18

2:17 pm-11:59 pm

1 stop9h 42m

$252

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

Sat 10/18

3:40 am-10:14 am

1 stop6h 34m

$252

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

Sat 10/25

3:40 am-10:14 am

1 stop6h 34m

$252

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sun 10/19

4:25 pm-7:55 am

1 stop15h 30m

San Juan Luis Munoz Marin Intl

Thu 10/23

9:19 pm-11:59 pm

1 stop26h 40m

$254

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Mon 10/27

6:00 am-11:19 am

1 stop29h 19m

San Juan Luis Munoz Marin Intl

Fri 10/31

10:39 pm-11:59 pm

1 stop25h 20m

$255

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sun 10/12

4:25 pm-2:30 am

1 stop10h 05m

San Juan Luis Munoz Marin Intl

Sat 10/18

3:40 am-10:14 am

1 stop6h 34m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/27

Showing 1-10 of 20 results
1
2

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 September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Trenton, New Jersey-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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, 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 September 29, 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.

How much does it cost to fly round-trip from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport?

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 September 29, 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
3,157 reviews

Boarding

6.1

Entertainment

4.4

Comfort

5.5

Food

4.7

Overall

5.8

Crew

6.7

Reviews

1 / 20
2.0
Mediocre

Shawn,Sep 2025

SAN - SFO

The flight was over booked and was unadble to get help with issue. I could not get a refund or rebooked in order to make my trip
Frontier
5.8
Fair
3,157 reviews
Frontier
5.8
Fair
3,157 reviews

Boarding

6.1

Entertainment

4.4

Comfort

5.5

Food

4.7

Overall

5.8

Crew

6.7

Reviews

1 / 20
2.0
Mediocre

Shawn,Sep 2025

SAN - SFO

The flight was over booked and was unadble to get help with issue. I could not get a refund or rebooked in order to make my trip

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 9h 27m. Frontier provides one of the quickest options available for as low as $247. 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 59% 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 September 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$117Average$278FlexibilityNo cancel feeOn-time62%

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