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Cheap flights from Philadelphia to San Juan from $93

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to San Juan departing on 9/7. 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 Philadelphia to San Juan (PHL-SJU)

Cheap round-trip flights

Frontier Logo
6:15 am - 11:01 amPHL-SJU
3h 46mnonstop
Frontier Logo
2:11 am - 5:09 amSJU-PHL
3h 58mnonstop
$168Frontier
Find Deal
Mon, Nov 3 - Sat, Nov 8
Frontier Logo
7:32 pm - 11:23 pmPHL-SJU
3h 51mnonstop
Frontier Logo
12:28 am - 4:27 amSJU-PHL
3h 59mnonstop
$169Frontier
Find Deal
Sat, Sep 13 - Wed, Sep 17
Logo
2:07 pm - 8:56 pmPHL-SJU
6h 49m1 stop
Logo
12:28 am - 4:27 amSJU-PHL
3h 59mnonstop
$170
Find Deal
Tue, Sep 16 - Fri, Sep 19
Logo
5:00 am - 11:04 amPHL-SJU
6h 04m1 stop
Logo
2:11 am - 5:09 amSJU-PHL
3h 58mnonstop
$171
Find Deal
Sun, Sep 7 - Fri, Nov 14
Frontier Logo
8:59 pm - 12:45 amPHL-SJU
3h 46mnonstop
Frontier Logo
1:59 am - 5:57 amSJU-PHL
3h 58mnonstop
$172Frontier
Find Deal
Fri, Oct 17 - Fri, Oct 24
Frontier Logo
7:32 pm - 11:23 pmPHL-SJU
3h 51mnonstop
Frontier Logo
12:06 pm - 4:05 pmSJU-PHL
3h 59mnonstop
$174Frontier
Find Deal
Sat, Sep 13 - Fri, Sep 19
Logo
5:00 am - 11:04 amPHL-SJU
6h 04m1 stop
Logo
12:28 am - 4:27 amSJU-PHL
3h 59mnonstop
$175
Find Deal
Sun, Sep 7 - Thu, Sep 11
Frontier Logo
8:52 pm - 12:38 amPHL-SJU
3h 46mnonstop
Frontier Logo
1:43 am - 5:41 amSJU-PHL
3h 58mnonstop
$176Frontier
Find Deal
Thu, Oct 16 - Sat, Oct 18
Frontier Logo
7:32 pm - 11:23 pmPHL-SJU
3h 51mnonstop
Frontier Logo
12:28 am - 4:27 amSJU-PHL
3h 59mnonstop
$177Frontier
Find Deal
Sun, Sep 14 - Wed, Sep 17
Frontier Logo
8:10 am - 12:01 pmPHL-SJU
3h 51mnonstop
Frontier Logo
12:28 am - 4:27 amSJU-PHL
3h 59mnonstop
$178Frontier
Find Deal
Tue, Sep 16 - Wed, Sep 17

Frontier flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport

Our best Frontier deals on Philadelphia to San Juan Luis Munoz Marin Intl Airport flight tickets
Frontier
Nov 3
PHL6:15 amPhiladelphia
3h 46m
SJU11:01 amSan Juan Luis Munoz Marin Intl
Nov 8
SJU2:11 amSan Juan Luis Munoz Marin Intl
3h 58m
PHL5:09 amPhiladelphia
$168
Find similar
Frontier
Sep 13
PHL7:32 pmPhiladelphia
3h 51m
SJU11:23 pmSan Juan Luis Munoz Marin Intl
Sep 17
SJU12:28 amSan Juan Luis Munoz Marin Intl
3h 59m
PHL4:27 amPhiladelphia
$169
Find similar
Frontier
Oct 17
PHL8:59 pmPhiladelphia
3h 46m
SJU12:45 amSan Juan Luis Munoz Marin Intl
Oct 24
SJU1:59 amSan Juan Luis Munoz Marin Intl
3h 58m
PHL5:57 amPhiladelphia
$172
Find similar

Spirit Airlines flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport

Our best Spirit Airlines deals on Philadelphia to San Juan Luis Munoz Marin Intl Airport flight tickets
Spirit Airlines
Aug 31
PHL3:51 pmPhiladelphia
17h 14m
1 stop
SJU9:05 amSan Juan Luis Munoz Marin Intl
Sep 11
SJU12:05 pmSan Juan Luis Munoz Marin Intl
4h 10m
PHL4:15 pmPhiladelphia
$203
Find similar
Spirit Airlines
Aug 31
PHL3:51 pmPhiladelphia
17h 14m
1 stop
SJU9:05 amSan Juan Luis Munoz Marin Intl
Sep 11
SJU11:59 amSan Juan Luis Munoz Marin Intl
8h 59m
1 stop
PHL8:58 pmPhiladelphia
$222
Find similar
Spirit Airlines
Aug 31
PHL3:51 pmPhiladelphia
17h 14m
1 stop
SJU9:05 amSan Juan Luis Munoz Marin Intl
Sep 12
SJU3:19 pmSan Juan Luis Munoz Marin Intl
8h 40m
1 stop
PHL11:59 pmPhiladelphia
$223
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 August 28, 2025.
Use the filters below to find and compare flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 11/3

6:15 am-11:01 am

Nonstop3h 46m

San Juan Luis Munoz Marin Intl

Sat 11/8

2:11 am-5:09 am

Nonstop3h 58m

$168

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 9/13

7:32 pm-11:23 pm

Nonstop3h 51m

San Juan Luis Munoz Marin Intl

Wed 9/17

12:28 am-4:27 am

Nonstop3h 59m

$169

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 9/16

2:07 pm-8:56 pm

1 stop6h 49m

San Juan Luis Munoz Marin Intl

Fri 9/19

12:28 am-4:27 am

Nonstop3h 59m

$170

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sun 9/7

5:00 am-11:04 am

1 stop6h 04m

San Juan Luis Munoz Marin Intl

Fri 11/14

2:11 am-5:09 am

Nonstop3h 58m

$171

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 10/17

8:59 pm-12:45 am

Nonstop3h 46m

San Juan Luis Munoz Marin Intl

Fri 10/24

1:59 am-5:57 am

Nonstop3h 58m

$172

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 9/13

7:32 pm-11:23 pm

Nonstop3h 51m

San Juan Luis Munoz Marin Intl

Fri 9/19

12:06 pm-4:05 pm

Nonstop3h 59m

$174

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sun 9/7

5:00 am-11:04 am

1 stop6h 04m

San Juan Luis Munoz Marin Intl

Thu 9/11

12:28 am-4:27 am

Nonstop3h 59m

$175

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 10/16

8:52 pm-12:38 am

Nonstop3h 46m

San Juan Luis Munoz Marin Intl

Sat 10/18

1:43 am-5:41 am

Nonstop3h 58m

$176

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sun 9/14

7:32 pm-11:23 pm

Nonstop3h 51m

San Juan Luis Munoz Marin Intl

Wed 9/17

12:28 am-4:27 am

Nonstop3h 59m

$177

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 9/16

8:10 am-12:01 pm

Nonstop3h 51m

San Juan Luis Munoz Marin Intl

Wed 9/17

12:28 am-4:27 am

Nonstop3h 59m

$178

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Juan from

How to get the cheapest flight ticket from Philadelphia 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 month to fly to San Juan Luis Munoz Marin Intl Airport?

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $243.

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 Philadelphia is on a Monday. momondo users have found tickets for Monday departures for as low as $271. 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 Philadelphia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $305.

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 in the evening when flights can be purchased for as low as $273. Flights at noon are often more expensive with an average ticket price of $342.

What is the cheapest Philadelphia to San Juan Luis Munoz Marin Intl flight route?

Fly from Philadelphia to San Juan Luis Munoz Marin Intl for the best Philadelphia - San Juan Luis Munoz Marin Intl flight prices

How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $273 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Philadelphia for as low as $246 on momondo.

What cabin class options are available on Philadelphia to San Juan Luis Munoz Marin Intl flights?

There are 3 cabin classes available to choose from on Philadelphia to San Juan Luis Munoz Marin Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to San Juan Luis Munoz Marin Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Philadelphia to San Juan Luis Munoz Marin Intl Airport.

How have Philadelphia to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of August 2025, prices for Philadelphia to San Juan Luis Munoz Marin Intl Airport flights are approximately 52% more expensive when compared to flights at the same time last year.

When to book flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia 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 Philadelphia to San Juan Luis Munoz Marin Intl Airport (PHL to SJU) flight deals and tips

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

Best Price Found

$139

Fastest flight time

3h 46m

Direct flights

Every day
The best one-way flight to San Juan Luis Munoz Marin Intl Airport from Philadelphia in the past 72 hours is $139. The best round-trip flight deal from Philadelphia to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is $242.
The fastest flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport takes 3h 46m
Direct flights go from Philadelphia to San Juan Luis Munoz Marin Intl Airport every day.
Search flight deals

  • How far is Philadelphia to San Juan Luis Munoz Marin Intl by plane?

    A flight from Philadelphia to San Juan Luis Munoz Marin Intl will travel around 1582.4 mi. Flights usually cover this in 3h 46m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia 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 travel and health documents required for your trip to San Juan Luis Munoz Marin Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan Luis Munoz Marin Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

  • What is the most popular airline from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Philadelphia to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Philadelphia to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Avelo AirlinesPriceFrom $99Free CancellationRating
7.5
78 reviews
Search Avelo Airlines flights
Spirit AirlinesPriceFrom $129Free CancellationRating
6.3
8,028 reviews
Search Spirit Airlines flights
FrontierPriceFrom $147Free CancellationRating
5.8
3,204 reviews
Search Frontier flights
JetBluePriceFrom $209Free CancellationRating
7.2
2,920 reviews
Search JetBlue flights
SouthwestPriceFrom $213Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
DeltaPriceFrom $215Free CancellationRating
7.9
7,977 reviews
Search Delta flights
American AirlinesPriceFrom $243Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $420Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights

  • American Airlines Flights From Philadelphia to San Juan Luis Munoz Marin Intl Airport

    American Airlines flight deals from Philadelphia to San Juan Luis Munoz Marin Intl Airport start from $243 round-trip. Over the 4 American Airlines flights for this route in a normal week, average airfare is usually $462 round-trip - but some users have found much cheaper deals with momondo.

  • Spirit Airlines Flights From Philadelphia to San Juan Luis Munoz Marin Intl Airport

    Spirit Airlines is also a popular choice for this route. Spirit Airlines flight deals for Philadelphia to San Juan Luis Munoz Marin Intl Airport start from as low as $129 round-trip, depending on your selected dates, with average Spirit Airlines deals seen on momondo around $258. Spirit Airlines operates 7 flights to San Juan Luis Munoz Marin Intl Airport from Philadelphia in an average week. Users have rated it 6.3/10 across 8,028 reviews.

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 Philadelphia to San Juan?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Juan from Philadelphia.

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

Yes. All flights to San Juan from Philadelphia on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Juan from Philadelphia.

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

Of course. momondo tracks the price of Philadelphia to San Juan flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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