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Cheap flights from Philadelphia to San Juan from £98

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 18/11. 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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Find the cheapest flights from Philadelphia to San Juan

Cheap return flights

Delta Logo
12:10 - 21:59PHL-SJU
9h 49m1 stop
Delta Logo
18:43 - 00:52SJU-PHL
7h 09m1 stop
£194Delta
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Wed, 29 Oct - Wed, 5 Nov
United Airlines Logo
10:05 - 20:00PHL-SJU
9h 55m1 stop
United Airlines Logo
08:10 - 19:05SJU-PHL
11h 55m2 stops
£209United Airlines
Find Deal
Thu, 30 Oct - Wed, 5 Nov
Delta Logo
10:21 - 20:30PHL-SJU
9h 09m1 stop
Delta Logo
07:30 - 18:19SJU-PHL
11h 49m1 stop
£212Delta
Find Deal
Sun, 1 Feb - Thu, 5 Feb
United Airlines Logo
10:05 - 21:00PHL-SJU
9h 55m1 stop
United Airlines Logo
02:05 - 14:07SJU-PHL
13h 02m2 stops
£213United Airlines
Find Deal
Sat, 15 Nov - Tue, 18 Nov
JetBlue Logo
12:00 - 21:04PHL-SJU
9h 04m1 stop
JetBlue Logo
05:05 - 11:08SJU-PHL
7h 03m1 stop
£215JetBlue
Find Deal
Tue, 28 Oct - Wed, 12 Nov
JetBlue Logo
16:32 - 23:54PHL-SJU
6h 22m1 stop
JetBlue Logo
06:01 - 11:38SJU-PHL
6h 37m1 stop
£217JetBlue
Find Deal
Wed, 10 Dec - Tue, 16 Dec
JetBlue Logo
07:00 - 16:05PHL-SJU
9h 05m1 stop
JetBlue Logo
13:00 - 21:55SJU-PHL
8h 55m1 stop
£220JetBlue
Find Deal
Sat, 18 Oct - Wed, 22 Oct
JetBlue Logo
12:00 - 22:04PHL-SJU
9h 04m1 stop
JetBlue Logo
15:30 - 00:13SJU-PHL
8h 43m1 stop
£229JetBlue
Find Deal
Mon, 2 Mar - Wed, 11 Mar
Southwest Logo
12:40 - 23:50PHL-SJU
11h 10m2 stops
Southwest Logo
06:40 - 17:15SJU-PHL
11h 35m2 stops
£235Southwest
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Thu, 30 Oct - Wed, 12 Nov
Southwest Logo
14:10 - 01:25PHL-SJU
10h 15m2 stops
Southwest Logo
06:40 - 12:25SJU-PHL
6h 45m1 stop
£253Southwest
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Thu, 13 Nov - Sun, 16 Nov

Delta flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport

Our best Delta deals on Philadelphia to San Juan Luis Munoz Marin Intl Airport flight tickets
Delta
29 Oct
PHL12:10Philadelphia
9h 49m
1 stop
SJU21:59San Juan Luis Munoz Marin Intl
5 Nov
SJU18:43San Juan Luis Munoz Marin Intl
7h 09m
1 stop
PHL00:52Philadelphia
£194
Find similar
Delta
1 Feb
PHL10:21Philadelphia
9h 09m
1 stop
SJU20:30San Juan Luis Munoz Marin Intl
5 Feb
SJU07:30San Juan Luis Munoz Marin Intl
11h 49m
1 stop
PHL18:19Philadelphia
£212
Find similar
Delta
21 Feb
PHL08:25Philadelphia
11h 05m
1 stop
SJU20:30San Juan Luis Munoz Marin Intl
26 Feb
SJU06:15San Juan Luis Munoz Marin Intl
6h 48m
1 stop
PHL12:03Philadelphia
£276
Find similar

United Airlines flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport

Our best United Airlines deals on Philadelphia to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines
30 Oct
PHL10:05Philadelphia
9h 55m
1 stop
SJU20:00San Juan Luis Munoz Marin Intl
5 Nov
SJU08:10San Juan Luis Munoz Marin Intl
11h 55m
2 stops
PHL19:05Philadelphia
£209
Find similar
United Airlines
15 Nov
PHL10:05Philadelphia
9h 55m
1 stop
SJU21:00San Juan Luis Munoz Marin Intl
18 Nov
SJU02:05San Juan Luis Munoz Marin Intl
13h 02m
2 stops
PHL14:07Philadelphia
£213
Find similar
United Airlines
3 Nov
PHL10:34Philadelphia
13h 02m
2 stops
SJU00:36San Juan Luis Munoz Marin Intl
8 Nov
SJU08:10San Juan Luis Munoz Marin Intl
10h 19m
1 stop
PHL17:29Philadelphia
£233
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport 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 279,928 searches. Data last updated 17 September 2025.
Use the filters below to find and compare flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 29/10

12:10-21:59

1 stop9h 49m

San Juan Luis Munoz Marin Intl

Wed 5/11

18:43-00:52

1 stop7h 09m

£194

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 30/10

10:05-20:00

1 stop9h 55m

San Juan Luis Munoz Marin Intl

Wed 5/11

08:10-19:05

2 stops11h 55m

£209

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sun 1/2

10:21-20:30

1 stop9h 09m

San Juan Luis Munoz Marin Intl

Thu 5/2

07:30-18:19

1 stop11h 49m

£212

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 15/11

10:05-21:00

1 stop9h 55m

San Juan Luis Munoz Marin Intl

Tue 18/11

02:05-14:07

2 stops13h 02m

£213

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 28/10

12:00-21:04

1 stop9h 04m

San Juan Luis Munoz Marin Intl

Wed 12/11

05:05-11:08

1 stop7h 03m

£215

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 10/12

16:32-23:54

1 stop6h 22m

San Juan Luis Munoz Marin Intl

Tue 16/12

06:01-11:38

1 stop6h 37m

£217

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 18/10

07:00-16:05

1 stop9h 05m

San Juan Luis Munoz Marin Intl

Wed 22/10

13:00-21:55

1 stop8h 55m

£220

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 2/3

12:00-22:04

1 stop9h 04m

San Juan Luis Munoz Marin Intl

Wed 11/3

15:30-00:13

1 stop8h 43m

£229

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 30/10

12:40-23:50

2 stops11h 10m

San Juan Luis Munoz Marin Intl

Wed 12/11

06:40-17:15

2 stops11h 35m

£235

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 13/11

14:10-01:25

2 stops10h 15m

San Juan Luis Munoz Marin Intl

Sun 16/11

06:40-12:25

1 stop6h 45m

£253

Flights are sorted by cheapest return flights first.

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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 during the month of October, then book flights to San Juan Luis Munoz Marin Intl Airport from Philadelphia during May instead. Flights to San Juan Luis Munoz Marin Intl Airport in May, while not as cheap as those in October, still average around £182.

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest day to depart from Philadelphia to San Juan Luis Munoz Marin Intl Airport is on a Thursday when prices can be found for as low as £181. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Philadelphia to San Juan Luis Munoz Marin Intl Airport for around £240.

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 £201 when searching weeks before you fly. 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 £177 on momondo.

What cabin class options are available on Philadelphia to San Juan Luis Munoz Marin Intl flights?

There is only 1 cabin class 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.

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

As of September 2025, prices for Philadelphia to San Juan Luis Munoz Marin Intl Airport flights are approximately 19% 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 return 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

Direct flights

None
There are no direct flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from Philadelphia to San Juan Luis Munoz Marin Intl Airport.
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  • 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 6h 10m, 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 refresh daily.

  • How old do you have to be to fly from Philadelphia Airport to San Juan Luis Munoz Marin Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, 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?

Travelling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Rio Grande
Carolina
Fajardo
Dorado

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 all potential Philadelphia to San Juan flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Philadelphia to San Juan right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Philadelphia to San Juan now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Juan and let you know when they change.

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Philadelphia flight routes

According to popular flight searches on momondo this year
Flights from Philadelphia to London Heathrow