TTN - SJU

$115 Find Cheap Flights from Trenton to San Juan - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Trenton to San Juan departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Juan Luis Munoz Marin Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Trenton to San Juan, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Trenton to San Juan, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$245
Frontier
Wed 8/5Wed 8/12
TTN - SJU • 1 stop
Cheapest one-way
$115
Typical prices: $218-$269
Frontier
Wed 8/5
TTN - SJU • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Trenton and San Juan. You'll need at least 1 connection.
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Top layover airports
Cheapest • Avg $388 (round-trip)
Shortest trip • 6h 05m (one-way)
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Juan!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Trenton to San Juan (TTN-SJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Trenton to San Juan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Trenton to San Juan

Wed, Aug 5 - Wed, Aug 12
Multiple Airlines Logo
4:26 pm - 12:41 am
TTN
-
SJU
8h 15m
1 stop
Multiple Airlines Logo
6:00 am - 11:00 am
SJU
-
TTN
29h 00m
1 stop
$245Multiple Airlines
Sun, Aug 23 - Sat, Aug 29
Multiple Airlines Logo
12:13 pm - 4:11 pm
TTN
-
SJU
27h 58m
1 stop
Multiple Airlines Logo
6:35 am - 11:23 am
SJU
-
TTN
28h 48m
1 stop
$276Multiple Airlines
Wed, Aug 5 - Wed, Aug 12
Multiple Airlines Logo
4:26 pm - 12:41 am
TTN
-
SJU
8h 15m
1 stop
Multiple Airlines Logo
5:20 pm - 11:00 am
SJU
-
TTN
17h 40m
2 stops
$297Multiple Airlines
Tue, Aug 4 - Wed, Aug 5
Frontier Logo
4:26 pm - 12:41 am
TTN
-
SJU
8h 15m
1 stop
Frontier Logo
12:13 pm - 11:40 pm
SJU
-
TTN
11h 27m
1 stop
$331Frontier
Tue, Aug 4 - Wed, Aug 12
Frontier Logo
6:05 am - 5:31 pm
TTN
-
SJU
11h 26m
1 stop
Frontier Logo
4:08 pm - 11:40 pm
SJU
-
TTN
7h 32m
1 stop
$336Frontier
Sun, Aug 23 - Sat, Aug 29
Multiple Airlines Logo
12:13 pm - 4:11 pm
TTN
-
SJU
27h 58m
1 stop
Multiple Airlines Logo
5:25 pm - 11:23 am
SJU
-
TTN
17h 58m
2 stops
$340Multiple Airlines
Tue, Jul 21 - Mon, Jul 27
Frontier Logo
9:23 am - 7:42 pm
TTN
-
SJU
10h 19m
1 stop
Frontier Logo
3:10 am - 11:40 pm
SJU
-
TTN
20h 30m
1 stop
$342Frontier
Mon, Aug 10 - Tue, Aug 11
Frontier Logo
4:26 pm - 12:41 am
TTN
-
SJU
8h 15m
1 stop
Frontier Logo
12:13 pm - 11:40 pm
SJU
-
TTN
11h 27m
1 stop
$345Frontier
Sat, Jul 25 - Wed, Aug 5
Frontier Logo
6:05 am - 7:57 am
TTN
-
SJU
25h 52m
1 stop
Frontier Logo
8:37 pm - 10:28 am
SJU
-
TTN
13h 51m
1 stop
$350Frontier
Thu, Aug 6 - Wed, Aug 12
Frontier Logo
6:05 am - 2:15 am
TTN
-
SJU
20h 10m
1 stop
Frontier Logo
8:37 pm - 10:28 am
SJU
-
TTN
13h 51m
1 stop
$355Frontier
Booking Insights

KAYAK's insights & trends for Trenton to San Juan flights

Get data-powered insights and trends into flights from Trenton to San Juan to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between Trenton and San Juan Luis Munoz Marin Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Trenton to San Juan Luis Munoz Marin Intl Airport.

There is just one airline that flies from Trenton to San Juan Luis Munoz Marin Intl Airport direct and that is Frontier. The best round-trip deal found from Frontier for the route is $194.

Good to know

Cheapest flight$115
Flight from Trenton to San Juan

When to book flights from Trenton to San Juan

Are your dates flexible? Find out the best times to travel from Trenton to San Juan based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Trenton to San Juan flights

  • What is the cheapest flight from Trenton to San Juan Luis Munoz Marin Intl Airport?

    In the last 5 days, the lowest price for a flight from Trenton to San Juan Luis Munoz Marin Intl Airport was $115 for a one-way ticket and $245 for a round-trip.

  • Do I need a passport to fly between Trenton and San Juan?

    A passport is required to fly from Trenton to San Juan.

  • Which airports will I be using when flying from Trenton to San Juan?

    Trenton and San Juan are both served by 1 main airport. You will leave Trenton from Trenton-Mercer and will be arriving at San Juan Luis Munoz Marin Intl.

  • Which aircraft models fly most regularly from Trenton to San Juan?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Trenton to San Juan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Trenton to San Juan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Trenton to San Juan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Trenton is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Trenton to San Juan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Juan with an airline and back to Trenton with another airline. Booking your flights between Trenton and SJU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Trenton to San Juan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Juan from Trenton up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Trenton to San Juan

 
See real verified KAYAK customer reviews for airlines flying from Trenton to San Juan. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Trenton to San Juan? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
5.6
FrontierOverall score based on 2858 reviews
4.3Entertainment
4.5Food
5.9Boarding
6.5Crew
5.4Comfort
Airline reviews

Crew was kind of grumpy and there was no beverage service at all. Sodas were $4. Disappointing.

6.0 GoodKatherine, Jun 2026
DEN - DCA
Read more Frontier reviews

Crew was kind of grumpy and there was no beverage service at all. Sodas were $4. Disappointing.

First of all we hade waited 3 hours in the airplane waiting to leave. Second the return schedule was changed and it messed up my entire vaction. I won't buy never again another flight and recommend to nobody traveling with them.

The worst. They don’t follow procedure for boarding per group. Flight got delayed for no understandably reasons, they changed our destination from PR to Miami, left us inside a plane for more than 8 hours, then cancelled flight in Miami leaving us stranded. Poorly managed re-accommodation for a new flight and overnight stay so I have to spend in a new ticket and my own hotel room to been able to get to my office next day. Lost 2 days of work and as a doctor, patients loosing their appointments. to other flights and besides

I liked the price of the flight and the chance to buy a seat with no person seated in the middle seat.. Also the flight was right on time.

The flight left over two hours late. They charged me $180 to bring a carry on. There was an error with the spelling of my name and Frontair agent lied that I would need to pay $200 for her to fix the spelling, and pressured me that if I don't do it quick I would lose the flight. I called back and another agent said it costs $75 to fix. All in all, this company is a complete scam.

I took my first and last flight with FRONTIER. The seats are not able to be reclined so it’s not a very comfortable experience when you take a flight of 3 hours or longer. You must pay for your luggage either carry on or check in, so taking all this in consideration at the end what you think you’re saving your paying in services that should be included. Not a beverage in sight. . You’re seriously better off getting on a proper airline such as Delta, AA, United, etc.

Horrible and worse flight ever. Was left at the airport in SJU by my flight to JFK after several delay at Santa Domingo. Will never recommend Frontier to any one. After leaving, frontier customer service ask me to rebook and pay for another flight to from SJU to JFK. Worse airline ever. You pay for everything with frontier airline.

Frontier notifying me earlier of flight delay of over 2 hours.

There was no wifi, there was no usb charger on the planes Frontier lowered the weight limit on suitcases from 50 to 40 pounds Frontier now charges for a seat...really? If i don't pay for a basic seat, do i stand the whole flight? Frontier now charges for the carry on, just like for the checked suitcase The bundle pricing is way over priced.

Excellent crew. WE all know Frontier its a low cost airline but the travel time was about 30 minutes and the crew was phenomenal. I was with a group of 10 more and we are enjoy our flight. The only issue was in SJU waiting for the luggage.

Everything you need to know for your flight from Trenton to San Juan

Information on your arrival and departure airports