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Cheap flights from Philadelphia to San Juan from $69

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 2/21. 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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0 bags

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Find the cheapest flights from Philadelphia to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Spirit Airlines Logo
8:35 pm - 12:17 am
PHL
-
SJU
3h 42mnonstop
Spirit Airlines Logo
1:22 am - 5:26 am
SJU
-
PHL
4h 04mnonstop
$141Spirit Airlines
Sat, Apr 11 - Mon, Apr 13
Frontier Logo
8:39 pm - 1:24 am
PHL
-
SJU
3h 45mnonstop
Frontier Logo
2:54 am - 6:06 am
SJU
-
PHL
4h 12mnonstop
$142Frontier
Tue, Feb 10 - Thu, Feb 19
Frontier Logo
1:05 pm - 5:50 pm
PHL
-
SJU
3h 45mnonstop
Frontier Logo
6:00 am - 9:12 am
SJU
-
PHL
4h 12mnonstop
$143Frontier
Mon, Feb 9 - Fri, Feb 20
Spirit Airlines Logo
6:00 am - 3:35 pm
PHL
-
SJU
8h 35m
1 stop
Spirit Airlines Logo
2:59 am - 6:11 am
SJU
-
PHL
4h 12mnonstop
$144Spirit Airlines
Mon, Feb 9 - Thu, Feb 12
Frontier Logo
8:44 pm - 12:29 am
PHL
-
SJU
3h 45mnonstop
Frontier Logo
1:59 am - 6:11 am
SJU
-
PHL
4h 12mnonstop
$145Frontier
Thu, Mar 12 - Mon, Mar 16
Multiple Airlines Logo
8:39 pm - 1:24 am
PHL
-
SJU
3h 45mnonstop
Multiple Airlines Logo
2:59 am - 6:11 am
SJU
-
PHL
4h 12mnonstop
$146Multiple Airlines
Fri, Feb 20 - Tue, Feb 24
Multiple Airlines Logo
8:44 pm - 12:29 am
PHL
-
SJU
3h 45mnonstop
Multiple Airlines Logo
1:22 am - 5:26 am
SJU
-
PHL
4h 04mnonstop
$147Multiple Airlines
Fri, Mar 20 - Fri, Mar 27
Multiple Airlines Logo
8:44 pm - 12:29 am
PHL
-
SJU
3h 45mnonstop
Multiple Airlines Logo
1:22 am - 5:26 am
SJU
-
PHL
4h 04mnonstop
$148Multiple Airlines
Fri, Mar 20 - Mon, Mar 23
Frontier Logo
4:17 pm - 8:02 pm
PHL
-
SJU
3h 45mnonstop
Frontier Logo
1:59 am - 6:11 am
SJU
-
PHL
4h 12mnonstop
$149Frontier
Fri, Mar 20 - Mon, Mar 23
Frontier Logo
8:39 pm - 12:29 am
PHL
-
SJU
3h 50mnonstop
Frontier Logo
1:59 am - 6:08 am
SJU
-
PHL
4h 09mnonstop
$150Frontier
Fri, May 1 - Mon, May 4

Frontier flights from Philadelphia to San Juan

Our best Frontier deals on Philadelphia to San Juan flight tickets
Frontier
Feb 10
PHL8:39 pmPhiladelphia
3h 45m
SJU1:24 amSan Juan Luis Munoz Marin Intl
Feb 19
SJU2:54 amSan Juan Luis Munoz Marin Intl
4h 12m
PHL6:06 amPhiladelphia
$142
Frontier
Feb 9
PHL1:05 pmPhiladelphia
3h 45m
SJU5:50 pmSan Juan Luis Munoz Marin Intl
Feb 20
SJU6:00 amSan Juan Luis Munoz Marin Intl
4h 12m
PHL9:12 amPhiladelphia
$143
Frontier
Mar 12
PHL8:44 pmPhiladelphia
3h 45m
SJU12:29 amSan Juan Luis Munoz Marin Intl
Mar 16
SJU1:59 amSan Juan Luis Munoz Marin Intl
4h 12m
PHL6:11 amPhiladelphia
$145

Spirit Airlines flights from Philadelphia to San Juan

Our best Spirit Airlines deals on Philadelphia to San Juan flight tickets
Spirit Airlines
Apr 11
PHL8:35 pmPhiladelphia
3h 42m
SJU12:17 amSan Juan Luis Munoz Marin Intl
Apr 13
SJU1:22 amSan Juan Luis Munoz Marin Intl
4h 04m
PHL5:26 amPhiladelphia
$141
Spirit Airlines
Feb 9
PHL6:00 amPhiladelphia
8h 35m
1 stop
SJU3:35 pmSan Juan Luis Munoz Marin Intl
Feb 12
SJU2:59 amSan Juan Luis Munoz Marin Intl
4h 12m
PHL6:11 amPhiladelphia
$144
Spirit Airlines
Feb 9
PHL8:20 amPhiladelphia
6h 15m
1 stop
SJU3:35 pmSan Juan Luis Munoz Marin Intl
Feb 17
SJU2:59 amSan Juan Luis Munoz Marin Intl
4h 12m
PHL6:11 amPhiladelphia
$149

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to San Juan 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 January 26, 2026.
Use the filters below to find and compare flights from Philadelphia to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 4/11

8:35 pm-12:17 am

Nonstop3h 42m

San Juan Luis Munoz Marin Intl

Mon 4/13

1:22 am-5:26 am

Nonstop4h 04m

$141

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 2/10

8:39 pm-1:24 am

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Thu 2/19

2:54 am-6:06 am

Nonstop4h 12m

$142

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 2/9

1:05 pm-5:50 pm

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Fri 2/20

6:00 am-9:12 am

Nonstop4h 12m

$143

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 2/9

6:00 am-3:35 pm

1 stop8h 35m

San Juan Luis Munoz Marin Intl

Thu 2/12

2:59 am-6:11 am

Nonstop4h 12m

$144

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 3/12

8:44 pm-12:29 am

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Mon 3/16

1:59 am-6:11 am

Nonstop4h 12m

$145

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 2/20

8:39 pm-1:24 am

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Tue 2/24

2:59 am-6:11 am

Nonstop4h 12m

$146

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 3/20

8:44 pm-12:29 am

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Fri 3/27

1:22 am-5:26 am

Nonstop4h 04m

$147

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 3/20

8:44 pm-12:29 am

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Mon 3/23

1:22 am-5:26 am

Nonstop4h 04m

$148

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 3/20

4:17 pm-8:02 pm

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Mon 3/23

1:59 am-6:11 am

Nonstop4h 12m

$149

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 5/1

8:39 pm-12:29 am

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Mon 5/4

1:59 am-6:08 am

Nonstop4h 09m

$150

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

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 typical price of a round-trip flight between Philadelphia and San Juan?

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in October, then May is your next best option. Flight prices from Philadelphia to San Juan during May average around $248.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart from Philadelphia to San Juan is on a Monday when prices can be found for as low as $282. The most expensive day to fly to San Juan is Friday, with ticket prices averaging around $305.

What is the cheapest time of day to depart on your flight to San Juan?

The cheapest time of day to fly to San Juan is in the evening when flights can be purchased for as low as $275. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $307 on average. Flights to San Juan from Philadelphia in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Philadelphia to San Juan flight route?

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

How far in advance should I book a flight to San Juan?

You are more likely to see cheaper flights to San Juan from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $282 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Philadelphia for as low as $251 on momondo.

What cabin class options are available on Philadelphia to San Juan flights?

There are 4 cabin classes available to choose from on Philadelphia to San Juan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Philadelphia to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to San Juan

Fastest flight time

3h 40m

Direct flights

Every day

Airports in San Juan

2 airports
The fastest flight from Philadelphia to San Juan takes 3h 40m
Direct flights go from Philadelphia to San Juan every day.
There are 2 airports in San Juan. From Philadelphia there are direct flights to San Juan Luis Munoz Marin Intl (SJU).
Search flight deals

  • How far is Philadelphia to San Juan by plane?

    A flight from Philadelphia to San Juan will travel around 1578.5 mi. A reasonable flight in good conditions will take 3h 40m.

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

    Prices for flights from Philadelphia Airport to San Juan refresh daily.

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

  • How old do you have to be to fly from Philadelphia Airport to San Juan?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to San Juan.

  • What documentation or ID do you need to fly to San Juan?

    The travel and health documents you'll need for your trip to San Juan may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Juan. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Philadelphia to San Juan

Compare and see reviews for airlines that fly from Philadelphia to San Juan with momondo
Airline
Rating
Free Cancellation
Price
Avelo AirlinesPriceFrom $82Free CancellationRating
7.6
88 reviews
Search Avelo Airlines flights
Spirit AirlinesPriceFrom $127Free CancellationRating
6.3
8,384 reviews
Search Spirit Airlines flights
FrontierPriceFrom $136Free CancellationRating
5.7
3,057 reviews
Search Frontier flights
JetBluePriceFrom $182Free CancellationRating
7.2
2,890 reviews
Search JetBlue flights
SouthwestPriceFrom $207Free CancellationRating
8.0
4,268 reviews
Search Southwest flights
DeltaPriceFrom $215Free CancellationRating
7.9
8,118 reviews
Search Delta flights
American AirlinesPriceFrom $259Free CancellationRating
7.2
11,195 reviews
Search American Airlines flights

Why use momondo?

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

It is quick and easy to find Philadelphia to San Juan flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Juan that suits you.

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

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

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?

Price alerts on flights to San Juan from Philadelphia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your San Juan trip

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Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 7.1 mi from San Juan
San Juan Isla Grande Airport
San Juan Luis Munoz Marin Intl Airport