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Cheap flights from Philadelphia to San Juan from $74

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 1/4. 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
8:00 am - 12:47 pm
PHL
-
SJU
3h 47mnonstop
Frontier Logo
6:00 am - 4:17 pm
SJU
-
PHL
11h 17m1 stop
$161Frontier
Fri, Jan 9 - Fri, Jan 16
Multiple Airlines Logo
8:17 pm - 12:59 am
PHL
-
SJU
3h 42mnonstop
Multiple Airlines Logo
2:59 am - 6:11 am
SJU
-
PHL
4h 12mnonstop
$162Multiple Airlines
Wed, Jan 7 - Fri, Jan 9
Spirit Airlines Logo
8:04 pm - 12:50 am
PHL
-
SJU
3h 46mnonstop
Spirit Airlines Logo
2:59 am - 6:11 am
SJU
-
PHL
4h 12mnonstop
$163Spirit Airlines
Mon, Jan 5 - Sun, Jan 11
Frontier Logo
12:50 pm - 5:37 pm
PHL
-
SJU
3h 47mnonstop
Frontier Logo
4:35 pm - 11:58 am
SJU
-
PHL
20h 23m2 stops
$164Frontier
Tue, Jan 6 - Wed, Jan 14
Frontier Logo
8:07 pm - 11:59 pm
PHL
-
SJU
26h 52m1 stop
Frontier Logo
7:00 pm - 10:12 pm
SJU
-
PHL
4h 12mnonstop
$165Frontier
Thu, Jan 22 - Mon, Jan 26
Frontier Logo
3:15 pm - 2:53 am
PHL
-
SJU
10h 38m1 stop
Frontier Logo
6:00 am - 9:12 am
SJU
-
PHL
4h 12mnonstop
$166Frontier
Thu, Feb 19 - Sat, Feb 28
Frontier Logo
10:22 am - 3:07 pm
PHL
-
SJU
3h 45mnonstop
Frontier Logo
2:54 am - 6:06 am
SJU
-
PHL
4h 12mnonstop
$167Frontier
Thu, Feb 12 - Mon, Feb 16
Multiple Airlines Logo
1:40 pm - 12:32 pm
PHL
-
SJU
21h 52m1 stop
Multiple Airlines Logo
2:59 am - 6:11 am
SJU
-
PHL
4h 12mnonstop
$168Multiple Airlines
Wed, Jan 14 - Fri, Jan 23
Frontier Logo
12:23 pm - 1:57 am
PHL
-
SJU
12h 34m1 stop
Frontier Logo
6:00 am - 5:01 pm
SJU
-
PHL
12h 01m1 stop
$169Frontier
Sat, Feb 14 - Thu, Feb 19
Frontier Logo
10:22 am - 3:07 pm
PHL
-
SJU
3h 45mnonstop
Frontier Logo
2:54 am - 6:06 am
SJU
-
PHL
4h 12mnonstop
$170Frontier
Thu, Feb 12 - Tue, Feb 17

Frontier flights from Philadelphia to San Juan

Our best Frontier deals on Philadelphia to San Juan flight tickets
Frontier
Jan 9
PHL8:00 amPhiladelphia
3h 47m
SJU12:47 pmSan Juan Luis Munoz Marin Intl
Jan 16
SJU6:00 amSan Juan Luis Munoz Marin Intl
11h 17m
1 stop
PHL4:17 pmPhiladelphia
$161
Find similar
Frontier
Jan 22
PHL8:07 pmPhiladelphia
26h 52m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Jan 26
SJU7:00 pmSan Juan Luis Munoz Marin Intl
4h 12m
PHL10:12 pmPhiladelphia
$165
Find similar
Frontier
Feb 19
PHL3:15 pmPhiladelphia
10h 38m
1 stop
SJU2:53 amSan Juan Luis Munoz Marin Intl
Feb 28
SJU6:00 amSan Juan Luis Munoz Marin Intl
4h 12m
PHL9:12 amPhiladelphia
$166
Find similar

Spirit Airlines flights from Philadelphia to San Juan

Our best Spirit Airlines deals on Philadelphia to San Juan flight tickets
Spirit Airlines
Jan 5
PHL8:04 pmPhiladelphia
3h 46m
SJU12:50 amSan Juan Luis Munoz Marin Intl
Jan 11
SJU2:59 amSan Juan Luis Munoz Marin Intl
4h 12m
PHL6:11 amPhiladelphia
$163
Find similar
Spirit Airlines
Jan 3
PHL8:04 pmPhiladelphia
3h 46m
SJU12:50 amSan Juan Luis Munoz Marin Intl
Jan 9
SJU2:59 amSan Juan Luis Munoz Marin Intl
4h 12m
PHL6:11 amPhiladelphia
$175
Find similar
Spirit Airlines
Jan 5
PHL8:04 pmPhiladelphia
3h 46m
SJU12:50 amSan Juan Luis Munoz Marin Intl
Jan 8
SJU2:59 amSan Juan Luis Munoz Marin Intl
4h 12m
PHL6:11 amPhiladelphia
$176
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 11, 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

Fri 1/9

8:00 am-12:47 pm

Nonstop3h 47m

San Juan Luis Munoz Marin Intl

Fri 1/16

6:00 am-4:17 pm

1 stop11h 17m

$161

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 1/7

8:17 pm-12:59 am

Nonstop3h 42m

San Juan Luis Munoz Marin Intl

Fri 1/9

2:59 am-6:11 am

Nonstop4h 12m

$162

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 1/5

8:04 pm-12:50 am

Nonstop3h 46m

San Juan Luis Munoz Marin Intl

Sun 1/11

2:59 am-6:11 am

Nonstop4h 12m

$163

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 1/6

12:50 pm-5:37 pm

Nonstop3h 47m

San Juan Luis Munoz Marin Intl

Wed 1/14

4:35 pm-11:58 am

2 stops20h 23m

$164

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 1/22

8:07 pm-11:59 pm

1 stop26h 52m

San Juan Luis Munoz Marin Intl

Mon 1/26

7:00 pm-10:12 pm

Nonstop4h 12m

$165

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 2/19

3:15 pm-2:53 am

1 stop10h 38m

San Juan Luis Munoz Marin Intl

Sat 2/28

6:00 am-9:12 am

Nonstop4h 12m

$166

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 2/12

10:22 am-3:07 pm

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Mon 2/16

2:54 am-6:06 am

Nonstop4h 12m

$167

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 1/14

1:40 pm-12:32 pm

1 stop21h 52m

San Juan Luis Munoz Marin Intl

Fri 1/23

2:59 am-6:11 am

Nonstop4h 12m

$168

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 2/14

12:23 pm-1:57 am

1 stop12h 34m

San Juan Luis Munoz Marin Intl

Thu 2/19

6:00 am-5:01 pm

1 stop12h 01m

$169

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 2/12

10:22 am-3:07 pm

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Tue 2/17

2:54 am-6:06 am

Nonstop4h 12m

$170

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 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 $311.

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 $282. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $379 on average. Flights to San Juan from Philadelphia at noon 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 $250 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
7.5
84 reviews
Search Avelo Airlines flights
Spirit AirlinesPriceFrom $130Free CancellationRating
6.3
8,178 reviews
Search Spirit Airlines flights
FrontierPriceFrom $149Free CancellationRating
5.8
3,084 reviews
Search Frontier flights
SouthwestPriceFrom $207Free CancellationRating
7.9
4,253 reviews
Search Southwest flights
JetBluePriceFrom $213Free CancellationRating
7.2
2,899 reviews
Search JetBlue flights
DeltaPriceFrom $215Free CancellationRating
7.9
8,005 reviews
Search Delta flights
American AirlinesPriceFrom $242Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
United AirlinesPriceFrom $420Free CancellationRating
7.4
9,095 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.

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