$105 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 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

KAYAK searches hundreds of travel sites at once for deals on flights to Puerto Rico

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Booking Insights
Flights 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

Wed, Aug 13 - Wed, Aug 20
Frontier Logo
8:30 am - 9:04 amTTN-SJU
24h 34m1 stop
Frontier Logo
8:13 pm - 10:43 pmSJU-TTN
26h 30m1 stop
$218Frontier
Find Deal
Sat, Aug 16 - Fri, Aug 22
Frontier Logo
6:45 am - 3:54 pmTTN-SJU
9h 09m1 stop
Frontier Logo
3:55 am - 11:56 pmSJU-TTN
20h 01m1 stop
$219Frontier
Find Deal
Sat, Aug 30 - Sat, Sep 6
Frontier Logo
8:00 am - 8:59 amTTN-SJU
24h 59m1 stop
Frontier Logo
4:42 pm - 11:00 amSJU-TTN
18h 18m1 stop
$220Frontier
Find Deal
Tue, Aug 26 - Wed, Sep 3
Frontier Logo
8:00 am - 7:08 pmTTN-SJU
11h 08m1 stop
Frontier Logo
8:13 pm - 11:00 amSJU-TTN
14h 47m1 stop
$225Frontier
Find Deal
Sat, Aug 16 - Sat, Aug 30
Frontier Logo
6:45 am - 9:04 amTTN-SJU
26h 19m1 stop
Frontier Logo
6:55 pm - 6:40 pmSJU-TTN
23h 45m1 stop
$227Frontier
Find Deal
Tue, Aug 19 - Thu, Aug 21
Frontier Logo
8:00 am - 7:08 pmTTN-SJU
11h 08m1 stop
Frontier Logo
3:59 am - 11:56 pmSJU-TTN
19h 57m1 stop
$228Frontier
Find Deal
Wed, Aug 27 - Wed, Sep 3
Frontier Logo
8:00 am - 2:50 amTTN-SJU
18h 50m1 stop
Frontier Logo
8:13 pm - 11:00 amSJU-TTN
14h 47m1 stop
$229Frontier
Find Deal
Sun, Aug 10 - Tue, Aug 12
Frontier Logo
5:15 pm - 2:39 amTTN-SJU
9h 24m1 stop
Frontier Logo
3:40 am - 11:59 pmSJU-TTN
20h 19m1 stop
$230Frontier
Find Deal
Sun, Sep 7 - Sat, Sep 13
Frontier Logo
4:57 pm - 2:34 amTTN-SJU
9h 37m1 stop
Frontier Logo
3:39 am - 11:00 amSJU-TTN
7h 21m1 stop
$234Frontier
Find Deal
Wed, Aug 13 - Sun, Aug 17
Frontier Logo
8:30 am - 6:02 pmTTN-SJU
9h 32m1 stop
Frontier Logo
5:43 pm - 8:41 amSJU-TTN
14h 58m1 stop
$235Frontier
Find Deal
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.

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.


Good to know

Low seasonSeptember
Cheapest flight$105
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 23% 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.

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.
5.9
FrontierOverall score based on 3237 reviews
6.7Crew
4.5Entertainment
4.7Food
5.6Comfort
6.1Boarding
Airline reviews

Boarding in Orlando was not good. Giant mob at the gate, should have been lines.

8.0 ExcellentJim, Jul 2025MCO - LAS
Read more Frontier reviews

Boarding in Orlando was not good. Giant mob at the gate, should have been lines.

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

Decent clean onboard experience. Okay discount airline experience. Unfortunately, any customer service interactions are difficult and unhelpful. There is no service. Also, a premium seat only gets you premium boarding if you line up first. Once they start general boarding you must go to the back of the line. Not very premium

baggage clamed had to wait over a hour and half for all people on my flight it was terrible

The ticketing agents were rude but then we had a great gate agent very nice we had to ride a buss out to where the plane was parked but it was in some back corner of the airport when we got to the plane the captain who was great btw was cleaning the plane because the same rude ticketing agent told them they we not contracted to vacuum the plane. The ride to las Vegas was fine We had a connecting flight to Dallas. The flight was fine but when we arrived in Dallas everyone who flew on any frontier airlines the picked up bags from baggage claim D15 had to wait over a hour for their bags to start we arrived at 11:30pm ish to the gate we didn't leave the baggage clamed till 12:50 am very not happy and i used to fly frontier 4 times a week for work in Denver i will not be using them again

I was 2 hr arrive in the airport and 45 min in the line . After take to my turn . The agent tell me I’m later . I can not board . So my vacation was going to the floor . Just for their bad customer service agent in the airline

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

My flight was canceled I was promised a reginf still not received.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

Both legs of the flight were changed. The day of the flight and length of the trip.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.