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Cheap flights from Trenton, New Jersey to San Juan from $143

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Trenton, New Jersey to San Juan departing on 11/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Trenton, New Jersey to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:00 am - 2:50 amTTN-SJU
18h 50m1 stop
Frontier Logo
11:05 am - 9:04 pmSJU-TTN
10h 59m1 stop
$286Frontier
Find Deal
Thu, Jan 22 - Thu, Jan 29
Frontier Logo
11:08 am - 2:42 pmTTN-SJU
26h 34m1 stop
Frontier Logo
6:01 am - 5:49 pmSJU-TTN
12h 48m1 stop
$291Frontier
Find Deal
Fri, Nov 14 - Thu, Nov 20
Frontier Logo
8:00 am - 8:24 pmTTN-SJU
11h 24m1 stop
Frontier Logo
3:55 am - 10:02 pmSJU-TTN
19h 07m1 stop
$295Frontier
Find Deal
Wed, Jan 14 - Tue, Jan 20
Frontier Logo
5:58 pm - 2:50 amTTN-SJU
7h 52m1 stop
Frontier Logo
3:55 am - 11:59 pmSJU-TTN
21h 04m1 stop
$311Frontier
Find Deal
Sat, Dec 6 - Fri, Dec 12
Frontier Logo
6:20 pm - 11:19 amTTN-SJU
15h 59m1 stop
Frontier Logo
10:22 pm - 11:49 amSJU-TTN
14h 27m1 stop
$315Frontier
Find Deal
Mon, Nov 17 - Tue, Nov 25
Frontier Logo
8:00 am - 11:19 amTTN-SJU
26h 19m1 stop
Frontier Logo
3:59 am - 11:59 pmSJU-TTN
21h 00m1 stop
$316Frontier
Find Deal
Sat, Nov 8 - Fri, Nov 14
Frontier Logo
5:58 pm - 2:50 amTTN-SJU
7h 52m1 stop
Frontier Logo
3:55 am - 11:59 pmSJU-TTN
21h 04m1 stop
$324Frontier
Find Deal
Sat, Dec 13 - Mon, Dec 22
Frontier Logo
9:59 pm - 2:50 amTTN-SJU
27h 51m1 stop
Frontier Logo
5:45 am - 7:08 pmSJU-TTN
14h 23m1 stop
$326Frontier
Find Deal
Tue, Dec 30 - Sat, Jan 10
Frontier Logo
7:00 am - 2:50 amTTN-SJU
18h 50m1 stop
Frontier Logo
11:05 am - 11:59 pmSJU-TTN
13h 54m1 stop
$327Frontier
Find Deal
Sun, Jan 25 - Mon, Jan 26
Frontier Logo
6:20 pm - 2:54 amTTN-SJU
7h 34m1 stop
Frontier Logo
7:15 am - 3:23 pmSJU-TTN
9h 08m1 stop
$328Frontier
Find Deal
Mon, Nov 17 - Fri, Nov 21

Frontier flights from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport

Our best Frontier deals on Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport flight tickets
Frontier
Jan 22
TTN7:00 amTrenton-Mercer
18h 50m
1 stop
SJU2:50 amSan Juan Luis Munoz Marin Intl
Jan 29
SJU11:05 amSan Juan Luis Munoz Marin Intl
10h 59m
1 stop
TTN9:04 pmTrenton-Mercer
$286
Find similar
Frontier
Nov 14
TTN11:08 amTrenton-Mercer
26h 34m
1 stop
SJU2:42 pmSan Juan Luis Munoz Marin Intl
Nov 20
SJU6:01 amSan Juan Luis Munoz Marin Intl
12h 48m
1 stop
TTN5:49 pmTrenton-Mercer
$291
Find similar
Frontier
Jan 14
TTN8:00 amTrenton-Mercer
11h 24m
1 stop
SJU8:24 pmSan Juan Luis Munoz Marin Intl
Jan 20
SJU3:55 amSan Juan Luis Munoz Marin Intl
19h 07m
1 stop
TTN10:02 pmTrenton-Mercer
$295
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport 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, momondo users made 832,500 searches. Data last updated October 27, 2025.
Use the filters below to find and compare flights from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Thu 1/22

7:00 am-2:50 am

1 stop18h 50m

San Juan Luis Munoz Marin Intl

Thu 1/29

11:05 am-9:04 pm

1 stop10h 59m

$286

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Fri 11/14

11:08 am-2:42 pm

1 stop26h 34m

San Juan Luis Munoz Marin Intl

Thu 11/20

6:01 am-5:49 pm

1 stop12h 48m

$291

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Wed 1/14

8:00 am-8:24 pm

1 stop11h 24m

San Juan Luis Munoz Marin Intl

Tue 1/20

3:55 am-10:02 pm

1 stop19h 07m

$295

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sat 12/6

5:58 pm-2:50 am

1 stop7h 52m

San Juan Luis Munoz Marin Intl

Fri 12/12

3:55 am-11:59 pm

1 stop21h 04m

$311

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Mon 11/17

6:20 pm-11:19 am

1 stop15h 59m

San Juan Luis Munoz Marin Intl

Tue 11/25

10:22 pm-11:49 am

1 stop14h 27m

$315

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sat 11/8

8:00 am-11:19 am

1 stop26h 19m

San Juan Luis Munoz Marin Intl

Fri 11/14

3:59 am-11:59 pm

1 stop21h 00m

$316

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sat 12/13

5:58 pm-2:50 am

1 stop7h 52m

San Juan Luis Munoz Marin Intl

Mon 12/22

3:55 am-11:59 pm

1 stop21h 04m

$324

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Tue 12/30

9:59 pm-2:50 am

1 stop27h 51m

San Juan Luis Munoz Marin Intl

Sat 1/10

5:45 am-7:08 pm

1 stop14h 23m

$326

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Sun 1/25

7:00 am-2:50 am

1 stop18h 50m

San Juan Luis Munoz Marin Intl

Mon 1/26

11:05 am-11:59 pm

1 stop13h 54m

$327

TrentonSan Juan

TTN - SJU

TTNSJU

Trenton-Mercer

Mon 11/17

6:20 pm-2:54 am

1 stop7h 34m

San Juan Luis Munoz Marin Intl

Fri 11/21

7:15 am-3:23 pm

1 stop9h 08m

$328

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from Trenton, New Jersey is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $249. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Trenton, New Jersey because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $312.

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is at noon when flights can be purchased for as low as $217. Flights in the evening are often more expensive with an average ticket price of $305.

When to book flights from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport (TTN to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport

Direct flights

None
There are no direct flights from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport.
Search flight deals

  • How far is Trenton-Mercer to San Juan Luis Munoz Marin Intl by plane?

    San Juan Luis Munoz Marin Intl is 1591.5 mi away from Trenton-Mercer. 7h 10m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Trenton-Mercer Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Trenton-Mercer Airport to San Juan Luis Munoz Marin Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Trenton-Mercer Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Trenton-Mercer Airport to San Juan Luis Munoz Marin Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Trenton-Mercer Airport to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The necessary travel and health documents for your San Juan Luis Munoz Marin Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Trenton, New Jersey to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $119Free CancellationRating
5.8
3,122 reviews
Search Frontier flights

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Caguas
Humacao
Rio Grande
Bayamón

Why use momondo?

Why should I use momondo to find a flight deal from Trenton to San Juan?

Finding the right flight to San Juan from Trenton is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Juan quick and easy, saving you time and money.

Can I find flights from Trenton to San Juan with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Juan from Trenton with this policy.

How can momondo help me find flights from Trenton to San Juan?

momondo helps you find the best flight between Trenton and San Juan by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Trenton to San Juan right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Trenton to San Juan now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Juan and let you know when they change.

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