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Cheap flights from Philadelphia to San Juan from £89

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 28/10. 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 return flights

JetBlue Logo
07:00 - 16:05PHL-SJU
9h 05m1 stop
JetBlue Logo
12:51 - 21:36SJU-PHL
8h 45m1 stop
£178JetBlue
Find Deal
ons, 15 okt - tis, 28 okt
United Airlines Logo
10:30 - 23:57PHL-SJU
13h 27m2 stops
United Airlines Logo
15:56 - 00:45SJU-PHL
8h 49m1 stop
£181United Airlines
Find Deal
mån, 22 sep - fre, 26 sep
United Airlines Logo
10:05 - 22:22PHL-SJU
11h 17m2 stops
United Airlines Logo
08:10 - 17:29SJU-PHL
10h 19m1 stop
£188United Airlines
Find Deal
tis, 4 nov - ons, 12 nov
JetBlue Logo
09:25 - 18:59PHL-SJU
8h 34m1 stop
JetBlue Logo
05:05 - 11:08SJU-PHL
7h 03m1 stop
£192JetBlue
Find Deal
mån, 3 nov - ons, 12 nov
Spirit Airlines Logo
15:51 - 09:05PHL-SJU
17h 14m1 stop
Spirit Airlines Logo
02:11 - 13:01SJU-PHL
10h 50m1 stop
£193Spirit Airlines
Find Deal
sön, 17 aug - tis, 19 aug
Delta Logo
05:40 - 17:33PHL-SJU
10h 53m1 stop
Delta Logo
13:50 - 00:23SJU-PHL
11h 33m1 stop
£196Delta
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mån, 3 nov - tors, 13 nov
Southwest Logo
11:35 - 19:25PHL-SJU
7h 50m1 stop
Southwest Logo
05:05 - 12:30SJU-PHL
7h 25m1 stop
£199Southwest
Find Deal
fre, 3 okt - sön, 5 okt
Spirit Airlines Logo
15:51 - 09:05PHL-SJU
17h 14m1 stop
Spirit Airlines Logo
08:00 - 11:54SJU-PHL
3h 54mdirect
£206Spirit Airlines
Find Deal
sön, 17 aug - ons, 20 aug
Southwest Logo
10:15 - 22:45PHL-SJU
12h 30m2 stops
Southwest Logo
06:40 - 17:15SJU-PHL
11h 35m2 stops
£210Southwest
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ons, 22 okt - ons, 17 dec
Delta Logo
10:35 - 21:59PHL-SJU
11h 24m1 stop
Delta Logo
18:43 - 00:52SJU-PHL
7h 09m1 stop
£215Delta
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fre, 31 okt - tors, 6 nov

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

Our best JetBlue deals on Philadelphia to San Juan Luis Munoz Marin Intl Airport flight tickets
JetBlue
15 Oct
PHL07:00Philadelphia
9h 05m
1 stop
SJU16:05San Juan Luis Munoz Marin Intl
28 Oct
SJU12:51San Juan Luis Munoz Marin Intl
8h 45m
1 stop
PHL21:36Philadelphia
£178
Find similar
JetBlue
3 Nov
PHL09:25Philadelphia
8h 34m
1 stop
SJU18:59San Juan Luis Munoz Marin Intl
12 Nov
SJU05:05San Juan Luis Munoz Marin Intl
7h 03m
1 stop
PHL11:08Philadelphia
£192
Find similar
JetBlue
3 Nov
PHL12:00Philadelphia
7h 05m
1 stop
SJU20:05San Juan Luis Munoz Marin Intl
11 Nov
SJU05:05San Juan Luis Munoz Marin Intl
7h 03m
1 stop
PHL11:08Philadelphia
£211
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
22 Sept
PHL10:30Philadelphia
13h 27m
2 stops
SJU23:57San Juan Luis Munoz Marin Intl
26 Sept
SJU15:56San Juan Luis Munoz Marin Intl
8h 49m
1 stop
PHL00:45Philadelphia
£181
Find similar
United Airlines
4 Nov
PHL10:05Philadelphia
11h 17m
2 stops
SJU22:22San Juan Luis Munoz Marin Intl
12 Nov
SJU08:10San Juan Luis Munoz Marin Intl
10h 19m
1 stop
PHL17:29Philadelphia
£188
Find similar
United Airlines
3 Nov
PHL10:05Philadelphia
11h 17m
2 stops
SJU22:22San Juan Luis Munoz Marin Intl
8 Nov
SJU08:10San Juan Luis Munoz Marin Intl
10h 19m
1 stop
PHL17:29Philadelphia
£207
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 1 augusti 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

ons 15/10

07:00-16:05

1 stop9h 05m

San Juan Luis Munoz Marin Intl

tis 28/10

12:51-21:36

1 stop8h 45m

£178

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

mån 22/9

10:30-23:57

2 stops13h 27m

San Juan Luis Munoz Marin Intl

fre 26/9

15:56-00:45

1 stop8h 49m

£181

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

tis 4/11

10:05-22:22

2 stops11h 17m

San Juan Luis Munoz Marin Intl

ons 12/11

08:10-17:29

1 stop10h 19m

£188

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

mån 3/11

09:25-18:59

1 stop8h 34m

San Juan Luis Munoz Marin Intl

ons 12/11

05:05-11:08

1 stop7h 03m

£192

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

sön 17/8

15:51-09:05

1 stop17h 14m

San Juan Luis Munoz Marin Intl

tis 19/8

02:11-13:01

1 stop10h 50m

£193

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

mån 3/11

05:40-17:33

1 stop10h 53m

San Juan Luis Munoz Marin Intl

tors 13/11

13:50-00:23

1 stop11h 33m

£196

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

fre 3/10

11:35-19:25

1 stop7h 50m

San Juan Luis Munoz Marin Intl

sön 5/10

05:05-12:30

1 stop7h 25m

£199

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

sön 17/8

15:51-09:05

1 stop17h 14m

San Juan Luis Munoz Marin Intl

ons 20/8

08:00-11:54

Nonstop3h 54m

£206

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

ons 22/10

10:15-22:45

2 stops12h 30m

San Juan Luis Munoz Marin Intl

ons 17/12

06:40-17:15

2 stops11h 35m

£210

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

fre 31/10

10:35-21:59

1 stop11h 24m

San Juan Luis Munoz Marin Intl

tors 6/11

18:43-00:52

1 stop7h 09m

£215

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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 September instead. Flights to San Juan Luis Munoz Marin Intl Airport in September, while not as cheap as those in October, still average around £176.

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 £186. 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 £247.

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 £205 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 £185 on momondo.

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

There are 1 cabin classes 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 August 2025, prices for Philadelphia to San Juan Luis Munoz Marin Intl Airport flights are approximately 35% 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

Best price found

£89

Fastest flight time

3h 54m

Direct flights

Fri and Sat
The best one-way flight to San Juan Luis Munoz Marin Intl Airport from Philadelphia in the past 72 hours is £89. The best return flight deal from Philadelphia to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is £178.
The fastest flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport takes 3h 54m
Direct flights go from Philadelphia to San Juan Luis Munoz Marin Intl Airport on Friday and Saturday. Airlines offering direct flights are: American Airlines, Spirit Airlines and Frontier.
Search flight deals

  • 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 20m, 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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ons 6/8
ons 13/8
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Philadelphia flight routes

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