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Cheap flights from Philadelphia to San Juan from $44

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 7/23. 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

Cheap round-trip flights

Frontier Logo
8:15 pm - 12:06 amPHL-SJU
3h 51mnonstop
Frontier Logo
1:06 pm - 5:05 pmSJU-PHL
3h 59mnonstop
$141Frontier
Find Deal
Sat, Sep 27 - Wed, Oct 1
Frontier Logo
8:10 am - 12:01 pmPHL-SJU
3h 51mnonstop
Frontier Logo
1:06 pm - 5:05 pmSJU-PHL
3h 59mnonstop
$143Frontier
Find Deal
Tue, Sep 23 - Sat, Sep 27
Frontier Logo
8:05 pm - 11:59 pmPHL-SJU
3h 54mnonstop
Frontier Logo
12:59 am - 5:00 amSJU-PHL
4h 01mnonstop
$144Frontier
Find Deal
Mon, Jul 28 - Fri, Aug 1
Frontier Logo
8:15 pm - 12:06 amPHL-SJU
3h 51mnonstop
Frontier Logo
12:12 pm - 4:10 pmSJU-PHL
3h 58mnonstop
$146Frontier
Find Deal
Fri, Oct 3 - Fri, Oct 10
Frontier Logo
8:12 pm - 11:58 pmPHL-SJU
3h 46mnonstop
Frontier Logo
1:21 pm - 5:19 pmSJU-PHL
3h 58mnonstop
$148Frontier
Find Deal
Sat, Oct 11 - Tue, Oct 14
Frontier Logo
8:12 pm - 11:58 pmPHL-SJU
3h 46mnonstop
Frontier Logo
12:12 pm - 4:10 pmSJU-PHL
3h 58mnonstop
$149Frontier
Find Deal
Fri, Oct 17 - Fri, Oct 24
Frontier Logo
8:30 am - 12:16 pmPHL-SJU
3h 46mnonstop
Frontier Logo
1:01 pm - 4:59 pmSJU-PHL
3h 58mnonstop
$150Frontier
Find Deal
Sat, Oct 25 - Tue, Oct 28
Frontier Logo
8:05 pm - 11:59 pmPHL-SJU
3h 54mnonstop
Frontier Logo
9:44 pm - 1:45 amSJU-PHL
4h 01mnonstop
$151Frontier
Find Deal
Mon, Aug 4 - Fri, Aug 8
Frontier Logo
8:05 pm - 11:59 pmPHL-SJU
3h 54mnonstop
Frontier Logo
12:59 am - 5:00 amSJU-PHL
4h 01mnonstop
$153Frontier
Find Deal
Sat, Aug 9 - Fri, Aug 29
Spirit Airlines Logo
5:52 pm - 9:37 pmPHL-SJU
3h 45mnonstop
Spirit Airlines Logo
3:50 pm - 11:30 pmSJU-PHL
7h 40m1 stop
$193Spirit Airlines
Find Deal
Sat, Jul 26 - Tue, Jul 29

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
Sep 27
PHL8:15 pmPhiladelphia
3h 51m
SJU12:06 amSan Juan Luis Munoz Marin Intl
Oct 1
SJU1:06 pmSan Juan Luis Munoz Marin Intl
3h 59m
PHL5:05 pmPhiladelphia
$141
Find similar
Frontier
Sep 23
PHL8:10 amPhiladelphia
3h 51m
SJU12:01 pmSan Juan Luis Munoz Marin Intl
Sep 27
SJU1:06 pmSan Juan Luis Munoz Marin Intl
3h 59m
PHL5:05 pmPhiladelphia
$143
Find similar
Frontier
Jul 28
PHL8:05 pmPhiladelphia
3h 54m
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Aug 1
SJU12:59 amSan Juan Luis Munoz Marin Intl
4h 01m
PHL5:00 amPhiladelphia
$144
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
Jul 26
PHL5:52 pmPhiladelphia
3h 45m
SJU9:37 pmSan Juan Luis Munoz Marin Intl
Jul 29
SJU3:50 pmSan Juan Luis Munoz Marin Intl
7h 40m
1 stop
PHL11:30 pmPhiladelphia
$193
Find similar
Spirit Airlines
Jul 22
PHL5:52 pmPhiladelphia
3h 45m
SJU9:37 pmSan Juan Luis Munoz Marin Intl
Jul 30
SJU3:50 pmSan Juan Luis Munoz Marin Intl
7h 40m
1 stop
PHL11:30 pmPhiladelphia
$194
Find similar
Spirit Airlines
Jul 20
PHL6:00 amPhiladelphia
15h 09m
1 stop
SJU9:09 pmSan Juan Luis Munoz Marin Intl
Jul 30
SJU3:50 pmSan Juan Luis Munoz Marin Intl
7h 40m
1 stop
PHL11:30 pmPhiladelphia
$202
Find similar

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 $233.

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, Friday 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 $310.

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 $275. Flights at noon are often more expensive with an average ticket price of $356.

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 $272 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 $245 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?

You could potentially save up to 3% on your flight if you consider stops on a Philadelphia to San Juan Luis Munoz Marin Intl Airport flight.

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

As of July 2025, prices for Philadelphia to San Juan Luis Munoz Marin Intl Airport flights are approximately 27% 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

$44

Fastest flight time

3h 45m

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 $44. 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 $141.
The fastest flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport takes 3h 45m
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 45m, 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
7.4
76 reviews
Search Avelo Airlines flights
Spirit AirlinesPriceFrom $128Free CancellationRating
6.3
8,047 reviews
Search Spirit Airlines flights
FrontierPriceFrom $147Free CancellationRating
5.9
3,260 reviews
Search Frontier flights
DeltaPriceFrom $215Free CancellationRating
8.0
7,953 reviews
Search Delta flights
JetBluePriceFrom $248Free CancellationRating
7.3
2,908 reviews
Search JetBlue flights
American AirlinesPriceFrom $250Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $338Free CancellationRating
7.4
8,856 reviews
Search United Airlines flights
SouthwestPriceFrom $389Free CancellationRating
8.0
4,243 reviews
Search Southwest 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 $250 round-trip. Over the 7 American Airlines flights for this route in a normal week, average airfare is usually $455 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 $128 round-trip, depending on your selected dates, with average Spirit Airlines deals seen on momondo around $248. Spirit Airlines operates 4 flights to San Juan Luis Munoz Marin Intl Airport from Philadelphia in an average week. Users have rated it 6.3/10 across 8,046 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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