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Cheap flights from Philadelphia to San Juan from $72

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 1/17. 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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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.
Frontier Logo
10:59 pm - 12:54 am
PHL
-
SJU
24h 55m1 stop
Frontier Logo
11:55 am - 3:07 pm
SJU
-
PHL
4h 12mnonstop
$147Frontier
Sat, Feb 28 - Thu, Mar 5
Multiple Airlines Logo
8:52 pm - 1:37 am
PHL
-
SJU
3h 45mnonstop
Multiple Airlines Logo
11:55 am - 3:07 pm
SJU
-
PHL
4h 12mnonstop
$148Multiple Airlines
Fri, Feb 27 - Thu, Mar 5
Frontier Logo
12:12 pm - 4:57 pm
PHL
-
SJU
3h 45mnonstop
Frontier Logo
7:00 pm - 10:12 pm
SJU
-
PHL
4h 12mnonstop
$149Frontier
Fri, Feb 6 - Mon, Feb 9
Frontier Logo
3:08 pm - 6:55 pm
PHL
-
SJU
3h 47mnonstop
Frontier Logo
5:22 pm - 12:02 am
SJU
-
PHL
6h 40m1 stop
$150Frontier
Tue, Apr 7 - Mon, Apr 13
Spirit Airlines Logo
8:52 pm - 1:37 am
PHL
-
SJU
3h 45mnonstop
Spirit Airlines Logo
2:59 am - 6:11 am
SJU
-
PHL
4h 12mnonstop
$151Spirit Airlines
Wed, Feb 18 - Thu, Feb 19
Frontier Logo
8:39 pm - 1:24 am
PHL
-
SJU
3h 45mnonstop
Frontier Logo
2:59 am - 6:11 am
SJU
-
PHL
4h 12mnonstop
$152Frontier
Wed, Feb 25 - Thu, Mar 5
Multiple Airlines Logo
8:52 pm - 1:37 am
PHL
-
SJU
3h 45mnonstop
Multiple Airlines Logo
6:00 am - 9:12 am
SJU
-
PHL
4h 12mnonstop
$153Multiple Airlines
Fri, Feb 27 - Sat, Feb 28
Multiple Airlines Logo
6:11 pm - 12:32 pm
PHL
-
SJU
17h 21m1 stop
Multiple Airlines Logo
2:59 am - 6:11 am
SJU
-
PHL
4h 12mnonstop
$154Multiple Airlines
Sat, Jan 17 - Thu, Jan 22
Multiple Airlines Logo
9:52 am - 6:58 pm
PHL
-
SJU
8h 06m1 stop
Multiple Airlines Logo
8:31 pm - 11:43 pm
SJU
-
PHL
4h 12mnonstop
$155Multiple Airlines
Sun, Jan 18 - Thu, Jan 22
Multiple Airlines Logo
9:53 am - 6:58 pm
PHL
-
SJU
8h 05m1 stop
Multiple Airlines Logo
2:54 am - 6:06 am
SJU
-
PHL
4h 12mnonstop
$156Multiple Airlines
Thu, Feb 26 - Sat, Feb 28

Frontier flights from Philadelphia to San Juan

Our best Frontier deals on Philadelphia to San Juan flight tickets
Frontier
Feb 28
PHL10:22 amPhiladelphia
3h 45m
SJU3:07 pmSan Juan Luis Munoz Marin Intl
Feb 28
SJU2:54 amSan Juan Luis Munoz Marin Intl
4h 12m
PHL6:06 amPhiladelphia
$147
Find similar
Frontier
Feb 6
PHL12:12 pmPhiladelphia
3h 45m
SJU4:57 pmSan Juan Luis Munoz Marin Intl
Feb 9
SJU7:00 pmSan Juan Luis Munoz Marin Intl
4h 12m
PHL10:12 pmPhiladelphia
$149
Find similar
Frontier
Feb 25
PHL8:39 pmPhiladelphia
3h 45m
SJU1:24 amSan Juan Luis Munoz Marin Intl
Feb 28
SJU2:54 amSan Juan Luis Munoz Marin Intl
4h 12m
PHL6:06 amPhiladelphia
$152
Find similar

Spirit Airlines flights from Philadelphia to San Juan

Our best Spirit Airlines deals on Philadelphia to San Juan flight tickets
Spirit Airlines
Feb 18
PHL8:52 pmPhiladelphia
3h 45m
SJU1:37 amSan Juan Luis Munoz Marin Intl
Feb 22
SJU2:59 amSan Juan Luis Munoz Marin Intl
4h 12m
PHL6:11 amPhiladelphia
$151
Find similar
Spirit Airlines
Feb 26
PHL9:53 amPhiladelphia
8h 05m
1 stop
SJU6:58 pmSan Juan Luis Munoz Marin Intl
Mar 1
SJU2:59 amSan Juan Luis Munoz Marin Intl
4h 12m
PHL6:11 amPhiladelphia
$156
Find similar
Spirit Airlines
Jan 22
PHL8:56 pmPhiladelphia
3h 45m
SJU1:41 amSan Juan Luis Munoz Marin Intl
Jan 24
SJU2:59 amSan Juan Luis Munoz Marin Intl
4h 12m
PHL6:11 amPhiladelphia
$161
Find similar

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 December 28, 2025.
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 2/28

10:59 pm-12:54 am

1 stop24h 55m

San Juan Luis Munoz Marin Intl

Thu 3/5

11:55 am-3:07 pm

Nonstop4h 12m

$147

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 2/27

8:52 pm-1:37 am

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Thu 3/5

11:55 am-3:07 pm

Nonstop4h 12m

$148

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 2/6

12:12 pm-4:57 pm

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Mon 2/9

7:00 pm-10:12 pm

Nonstop4h 12m

$149

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 4/7

3:08 pm-6:55 pm

Nonstop3h 47m

San Juan Luis Munoz Marin Intl

Mon 4/13

5:22 pm-12:02 am

1 stop6h 40m

$150

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 2/18

8:52 pm-1:37 am

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Thu 2/19

2:59 am-6:11 am

Nonstop4h 12m

$151

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 2/25

8:39 pm-1:24 am

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Thu 3/5

2:59 am-6:11 am

Nonstop4h 12m

$152

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 2/27

8:52 pm-1:37 am

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Sat 2/28

6:00 am-9:12 am

Nonstop4h 12m

$153

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 1/17

6:11 pm-12:32 pm

1 stop17h 21m

San Juan Luis Munoz Marin Intl

Thu 1/22

2:59 am-6:11 am

Nonstop4h 12m

$154

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sun 1/18

9:52 am-6:58 pm

1 stop8h 06m

San Juan Luis Munoz Marin Intl

Thu 1/22

8:31 pm-11:43 pm

Nonstop4h 12m

$155

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 2/26

9:53 am-6:58 pm

1 stop8h 05m

San Juan Luis Munoz Marin Intl

Sat 2/28

2:54 am-6:06 am

Nonstop4h 12m

$156

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 $280. The most expensive day to fly to San Juan is Friday, with ticket prices averaging around $308.

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 $277. 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 $281 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 $259 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 34m

Direct flights

Every day

Airports in San Juan

2 airports
The fastest flight from Philadelphia to San Juan takes 3h 34m
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 34m.

  • 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 $86Free CancellationRating
7.6
86 reviews
Search Avelo Airlines flights
Spirit AirlinesPriceFrom $130Free CancellationRating
6.3
8,210 reviews
Search Spirit Airlines flights
FrontierPriceFrom $145Free CancellationRating
5.7
3,064 reviews
Search Frontier flights
JetBluePriceFrom $183Free CancellationRating
7.2
2,901 reviews
Search JetBlue flights
SouthwestPriceFrom $207Free CancellationRating
8.0
4,253 reviews
Search Southwest flights
DeltaPriceFrom $215Free CancellationRating
7.9
8,016 reviews
Search Delta flights
American AirlinesPriceFrom $244Free CancellationRating
7.2
11,070 reviews
Search American Airlines flights
United AirlinesPriceFrom $420Free CancellationRating
7.4
9,114 reviews
Search United 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.

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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