$85 Find Cheap Flights from Trenton to Puerto Rico

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 Puerto Rico departing on 2/7. 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

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Flight Deals

Book Cheap Trenton to Puerto Rico Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Trenton to Puerto Rico 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 Puerto Rico

Sat, Feb 7 - Wed, Feb 11
Frontier Logo
12:04 pm - 11:59 pm
TTN
-
SJU
10h 55m1 stop
Frontier Logo
5:25 pm - 11:39 pm
SJU
-
TTN
7h 14m1 stop
$172Frontier
Thu, Feb 5 - Tue, Feb 10
Frontier Logo
8:38 pm - 10:24 am
TTN
-
SJU
12h 46m1 stop
Frontier Logo
5:25 pm - 11:39 pm
SJU
-
TTN
7h 14m1 stop
$176Frontier
Sat, Jan 24 - Tue, Jan 27
Frontier Logo
8:19 pm - 9:54 am
TTN
-
SJU
12h 35m1 stop
Frontier Logo
4:36 pm - 2:26 pm
SJU
-
TTN
22h 50m1 stop
$177Frontier
Sat, Mar 7 - Thu, Mar 12
Frontier Logo
8:40 am - 8:06 pm
TTN
-
SJU
10h 26m1 stop
Frontier Logo
11:07 am - 11:59 pm
SJU
-
TTN
12h 52m1 stop
$180Frontier
Mon, Mar 2 - Mon, Mar 9
Frontier Logo
8:32 am - 2:53 am
TTN
-
SJU
17h 21m1 stop
Frontier Logo
6:30 am - 11:59 pm
SJU
-
TTN
17h 29m1 stop
$181Frontier
Thu, Jan 8 - Mon, Jan 12
Frontier Logo
7:58 pm - 2:34 am
TTN
-
SJU
29h 36m1 stop
Frontier Logo
9:23 pm - 9:44 pm
SJU
-
TTN
25h 21m1 stop
$182Frontier
Mon, Jan 26 - Thu, Jan 29
Frontier Logo
8:27 pm - 3:26 pm
TTN
-
SJU
17h 59m1 stop
Frontier Logo
8:00 am - 7:48 pm
SJU
-
TTN
12h 48m1 stop
$185Frontier
Sat, Feb 21 - Thu, Feb 26
Frontier Logo
6:56 pm - 2:53 am
TTN
-
SJU
6h 57m1 stop
Frontier Logo
5:25 pm - 8:02 am
SJU
-
TTN
15h 37m1 stop
$186Frontier
Thu, Jan 8 - Mon, Jan 12
Frontier Logo
7:58 pm - 2:34 am
TTN
-
SJU
29h 36m1 stop
Frontier Logo
9:23 pm - 9:44 pm
SJU
-
TTN
25h 21m1 stop
$191Frontier
Thu, Jan 8 - Mon, Jan 12
Frontier Logo
7:58 pm - 2:34 am
TTN
-
SJU
29h 36m1 stop
Frontier Logo
9:23 pm - 9:44 pm
SJU
-
TTN
25h 21m1 stop
$192Frontier
Booking Insights

KAYAK's insights & trends for Trenton to Puerto Rico flights

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

Which airlines fly non-stop between Trenton and Puerto Rico?

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 Puerto Rico.

There is just one airline that flies from Trenton to Puerto Rico direct and that is Frontier. The best round-trip deal found from Frontier for the route is to San Juan Luis Munoz Marin Intl Airport (SJU) and costs $143.

Good to know

Low seasonMarch
Cheapest flight$85
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 40% increase in price.
Flight from Trenton to San Juan

FAQs - booking Puerto Rico flights

  • How does KAYAK find such low prices on flights from Trenton to Puerto Rico?

    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 Puerto Rico.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Trenton to Puerto Rico 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 Puerto Rico?

    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 from Trenton to Puerto Rico with an airline and back with another airline.

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

    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 from Trenton to Puerto Rico up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Puerto Rico?

    The cheapest time of day to fly to Puerto Rico is generally at night, when round-trip flights cost $244 on average. Morning departures are around 3% cheaper than evening flights, on average. The most expensive time of day to fly to Puerto Rico is generally in the evening, which is peak travel time and where the average cost of a ticket is $290.

Reviews of the top airline flying from Trenton to Puerto Rico

 
Need help choosing which airline to fly with from Trenton to Puerto Rico? 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.
5.8
FrontierOverall score based on 3080 reviews
6.0Boarding
6.7Crew
5.5Comfort
4.6Food
4.4Entertainment
Airline reviews

Not clean and was told I would get a great seat and it was not great at all

2.0 MediocreAnonymous, Dec 2025
DEN - PHL
Read more Frontier reviews

Not clean and was told I would get a great seat and it was not great at all

Flight got delayed for 5 hours no good explanation was offered ;(

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Everything you need to know for your flight from Trenton to Puerto Rico

Information on your arrival and departure airports