$147 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 5/15. 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.
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Cheap Flights from Trenton to Puerto Rico

 
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.

Recent round-trip flight deals from Trenton to Puerto Rico

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Trenton to Puerto Rico.
Discover the best prices for you by selecting your travel dates on KAYAK.
Frontier Logo
9:00 am - 6:16 pmTTN-SJU
9h 16m1 stop
Frontier Logo
10:42 am - 11:41 pmSJU-TTN
12h 59m1 stop
$298Frontier
Find Deal
Tue, May 13 - Thu, May 15
Frontier Logo
6:45 am - 1:29 pmTTN-SJU
6h 44m1 stop
Frontier Logo
4:55 pm - 11:39 pmSJU-TTN
6h 44m1 stop
$302Frontier
Find Deal
Mon, May 19 - Fri, May 23
Frontier Logo
6:00 am - 6:45 pmTTN-SJU
12h 45m1 stop
Frontier Logo
3:56 am - 12:57 pmSJU-TTN
9h 01m1 stop
$303Frontier
Find Deal
Sun, May 18 - Sun, May 18
Frontier Logo
6:45 am - 1:29 pmTTN-SJU
6h 44m1 stop
Frontier Logo
6:00 am - 12:57 pmSJU-TTN
6h 57m1 stop
$304Frontier
Find Deal
Thu, May 15 - Sun, May 18
Frontier Logo
6:00 am - 6:47 pmTTN-SJU
12h 47m1 stop
Frontier Logo
11:18 am - 10:59 pmSJU-TTN
11h 41m1 stop
$308Frontier
Find Deal
Fri, May 16 - Sun, May 18
Frontier Logo
8:00 am - 2:51 amTTN-SJU
18h 51m1 stop
Frontier Logo
3:56 am - 10:40 pmSJU-TTN
18h 44m1 stop
$309Frontier
Find Deal
Wed, May 14 - Tue, May 20
Frontier Logo
5:20 pm - 12:21 amTTN-SJU
7h 01m1 stop
Frontier Logo
3:40 am - 12:22 pmSJU-TTN
8h 42m1 stop
$313Frontier
Find Deal
Fri, May 23 - Fri, May 23
Frontier Logo
5:20 pm - 12:21 amTTN-SJU
7h 01m1 stop
Frontier Logo
4:38 pm - 11:39 pmSJU-TTN
7h 01m1 stop
$314Frontier
Find Deal
Thu, May 29 - Sat, May 31
Frontier Logo
8:00 am - 2:51 amTTN-SJU
18h 51m1 stop
Frontier Logo
9:30 pm - 11:52 pmSJU-TTN
26h 22m1 stop
$317Frontier
Find Deal
Sat, May 10 - Sun, May 18
Frontier Logo
5:20 pm - 12:21 amTTN-SJU
7h 01m1 stop
Frontier Logo
3:40 am - 4:17 pmSJU-TTN
12h 37m1 stop
$318Frontier
Find Deal
Thu, May 29 - Sat, Jun 7
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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.

What is the cheapest month to fly from Trenton to Puerto Rico?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Trenton to Puerto Rico, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Trenton to Puerto Rico is March, when tickets cost $130 (return) on average. On the other hand, the most expensive months are December and November, when the average cost of round-trip tickets is $800 and $374 respectively.

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Good to know

Low seasonSeptember
High seasonMay
Cheapest flight$147
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 1% lower on average.
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.

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.
5.9
FrontierOverall score based on 3287 reviews
5.6Comfort
6.2Boarding
4.6Entertainment
4.8Food
6.8Crew
Airline reviews

The reps working at the airport counter were dumber than a second coat of paint.

2.0 MediocreAnonymous, Apr 2025IAH - LAS
Read more Frontier reviews

The reps working at the airport counter were dumber than a second coat of paint.

My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

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

Information on your arrival and departure airports

Trenton (TTN)

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