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Cheap flights from Philadelphia to San Juan from $78

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 1/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

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Multiple Airlines Logo
8:02 pm - 12:49 amPHL-SJU
3h 47mnonstop
Multiple Airlines Logo
4:10 am - 11:17 amSJU-PHL
8h 07m1 stop
$178Multiple Airlines
Find Deal
qui, dez 4 - sex, dez 5
Multiple Airlines Logo
10:00 am - 11:44 pmPHL-SJU
12h 44m1 stop
Multiple Airlines Logo
4:10 am - 2:44 pmSJU-PHL
11h 34m1 stop
$179Multiple Airlines
Find Deal
ter, nov 25 - seg, dez 8
Multiple Airlines Logo
1:24 pm - 6:04 pmPHL-SJU
3h 40mnonstop
Multiple Airlines Logo
1:59 am - 5:04 amSJU-PHL
4h 05mnonstop
$180Multiple Airlines
Find Deal
dom, dez 14 - sex, dez 19
Frontier Logo
6:00 am - 2:50 amPHL-SJU
19h 50m1 stop
Frontier Logo
9:06 pm - 12:11 amSJU-PHL
4h 05mnonstop
$181Frontier
Find Deal
seg, dez 8 - seg, dez 22
Frontier Logo
11:07 am - 10:32 amPHL-SJU
22h 25m1 stop
Frontier Logo
1:59 am - 5:04 amSJU-PHL
4h 05mnonstop
$182Frontier
Find Deal
qui, dez 11 - sex, dez 19
Multiple Airlines Logo
1:24 pm - 6:04 pmPHL-SJU
3h 40mnonstop
Multiple Airlines Logo
1:59 am - 5:04 amSJU-PHL
4h 05mnonstop
$183Multiple Airlines
Find Deal
dom, dez 14 - qui, dez 18
Multiple Airlines Logo
7:11 pm - 12:32 pmPHL-SJU
40h 21m2 stops
Multiple Airlines Logo
11:57 am - 3:02 pmSJU-PHL
4h 05mnonstop
$184Multiple Airlines
Find Deal
sex, dez 12 - sex, dez 19
Multiple Airlines Logo
5:15 am - 12:32 pmPHL-SJU
6h 17m1 stop
Multiple Airlines Logo
9:06 pm - 12:11 amSJU-PHL
4h 05mnonstop
$185Multiple Airlines
Find Deal
sáb, dez 13 - dom, dez 21
Frontier Logo
6:00 am - 10:47 amPHL-SJU
3h 47mnonstop
Frontier Logo
11:57 am - 3:02 pmSJU-PHL
4h 05mnonstop
$186Frontier
Find Deal
seg, dez 15 - ter, dez 23
Multiple Airlines Logo
7:00 am - 11:45 amPHL-SJU
3h 45mnonstop
Multiple Airlines Logo
2:59 am - 6:11 amSJU-PHL
4h 12mnonstop
$187Multiple Airlines
Find Deal
qui, jan 22 - qui, jan 29

Frontier flights from Philadelphia to San Juan

Our best Frontier deals on Philadelphia to San Juan flight tickets
Frontier
Dec 8
PHL10:00 pmPhiladelphia
27h 50m
1 stop
SJU2:50 amSan Juan Luis Munoz Marin Intl
Dec 21
SJU1:59 amSan Juan Luis Munoz Marin Intl
4h 05m
PHL5:04 amPhiladelphia
$181
Find similar
Frontier
Nov 24
PHL8:08 pmPhiladelphia
3h 47m
SJU12:55 amSan Juan Luis Munoz Marin Intl
Dec 3
SJU9:15 amSan Juan Luis Munoz Marin Intl
25h 45m
2 stops
PHL10:00 amPhiladelphia
$184
Find similar
Frontier
Dec 15
PHL6:00 amPhiladelphia
3h 47m
SJU10:47 amSan Juan Luis Munoz Marin Intl
Dec 23
SJU11:57 amSan Juan Luis Munoz Marin Intl
4h 05m
PHL3:02 pmPhiladelphia
$186
Find similar

Spirit Airlines flights from Philadelphia to San Juan

Our best Spirit Airlines deals on Philadelphia to San Juan flight tickets
Spirit Airlines
Dec 8
PHL5:15 amPhiladelphia
6h 17m
1 stop
SJU12:32 pmSan Juan Luis Munoz Marin Intl
Dec 12
SJU4:10 amSan Juan Luis Munoz Marin Intl
8h 07m
1 stop
PHL11:17 amPhiladelphia
$190
Find similar
Spirit Airlines
Nov 27
PHL5:25 amPhiladelphia
14h 02m
1 stop
SJU8:27 pmSan Juan Luis Munoz Marin Intl
Dec 4
SJU6:59 pmSan Juan Luis Munoz Marin Intl
4h 10m
PHL10:09 pmPhiladelphia
$193
Find similar
Spirit Airlines
Nov 24
PHL11:03 amPhiladelphia
3h 50m
SJU3:53 pmSan Juan Luis Munoz Marin Intl
Dec 6
SJU7:00 amSan Juan Luis Munoz Marin Intl
17h 16m
3 stops
PHL11:16 pmPhiladelphia
$201
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 novembro 13, 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

qui 12/4

8:02 pm-12:49 am

Nonstop3h 47m

San Juan Luis Munoz Marin Intl

sex 12/5

4:10 am-11:17 am

1 stop8h 07m

$178

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

ter 11/25

10:00 am-11:44 pm

1 stop12h 44m

San Juan Luis Munoz Marin Intl

seg 12/8

4:10 am-2:44 pm

1 stop11h 34m

$179

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

dom 12/14

1:24 pm-6:04 pm

Nonstop3h 40m

San Juan Luis Munoz Marin Intl

sex 12/19

1:59 am-5:04 am

Nonstop4h 05m

$180

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

seg 12/8

6:00 am-2:50 am

1 stop19h 50m

San Juan Luis Munoz Marin Intl

seg 12/22

9:06 pm-12:11 am

Nonstop4h 05m

$181

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

qui 12/11

11:07 am-10:32 am

1 stop22h 25m

San Juan Luis Munoz Marin Intl

sex 12/19

1:59 am-5:04 am

Nonstop4h 05m

$182

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

dom 12/14

1:24 pm-6:04 pm

Nonstop3h 40m

San Juan Luis Munoz Marin Intl

qui 12/18

1:59 am-5:04 am

Nonstop4h 05m

$183

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

sex 12/12

7:11 pm-12:32 pm

2 stops40h 21m

San Juan Luis Munoz Marin Intl

sex 12/19

11:57 am-3:02 pm

Nonstop4h 05m

$184

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

sáb 12/13

5:15 am-12:32 pm

1 stop6h 17m

San Juan Luis Munoz Marin Intl

dom 12/21

9:06 pm-12:11 am

Nonstop4h 05m

$185

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

seg 12/15

6:00 am-10:47 am

Nonstop3h 47m

San Juan Luis Munoz Marin Intl

ter 12/23

11:57 am-3:02 pm

Nonstop4h 05m

$186

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

qui 1/22

7:00 am-11:45 am

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

qui 1/29

2:59 am-6:11 am

Nonstop4h 12m

$187

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 $283. The most expensive day to fly to San Juan is Thursday, 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 $281. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $372 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 $248 on momondo.

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

There are 3 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

1 airport
The fastest flight from Philadelphia to San Juan takes 3h 40m
Direct flights go from Philadelphia to San Juan every day.
There is 1 airport near San Juan: 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 $100Free CancellationRating
7.6
83 reviews
Search Avelo Airlines flights
Spirit AirlinesPriceFrom $130Free CancellationRating
6.3
8,139 reviews
Search Spirit Airlines flights
FrontierPriceFrom $148Free CancellationRating
5.8
3,109 reviews
Search Frontier flights
SouthwestPriceFrom $213Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
DeltaPriceFrom $215Free CancellationRating
7.9
8,007 reviews
Search Delta flights
American AirlinesPriceFrom $244Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
JetBluePriceFrom $289Free CancellationRating
7.2
2,907 reviews
Search JetBlue flights
United AirlinesPriceFrom $420Free CancellationRating
7.4
9,017 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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1 adult
sáb 12/13
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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