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Cheap flights from Philadelphia to San Juan from £93

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 24/2. 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

Enter your travel dates to find the best prices.
Frontier Logo
20:44 - 00:29
PHL
-
SJU
3h 45mdirect
Frontier Logo
01:59 - 06:11
SJU
-
PHL
4h 12mdirect
£118Frontier
Tue, 24 Mar - Mon, 30 Mar
Frontier Logo
16:17 - 20:07
PHL
-
SJU
3h 50mdirect
Frontier Logo
01:59 - 06:08
SJU
-
PHL
4h 09mdirect
£126Frontier
Sun, 26 Apr - Sat, 2 May
Frontier Logo
12:46 - 22:45
PHL
-
SJU
9h 59m
1 stop
Frontier Logo
01:59 - 06:11
SJU
-
PHL
4h 12mdirect
£129Frontier
Tue, 24 Mar - Mon, 30 Mar
Frontier Logo
20:39 - 00:29
PHL
-
SJU
3h 50mdirect
Frontier Logo
16:11 - 00:29
SJU
-
PHL
8h 18m
1 stop
£131Frontier
Sun, 26 Apr - Sun, 3 May
Spirit Airlines Logo
15:08 - 18:48
PHL
-
SJU
3h 40mdirect
Spirit Airlines Logo
21:49 - 08:44
SJU
-
PHL
10h 55m
1 stop
£135Spirit Airlines
Fri, 17 Apr - Sun, 26 Apr
Multiple Airlines Logo
06:15 - 14:31
PHL
-
SJU
8h 16m
1 stop
Multiple Airlines Logo
16:11 - 00:29
SJU
-
PHL
8h 18m
1 stop
£151Multiple Airlines
Sun, 26 Apr - Sun, 3 May
Spirit Airlines Logo
09:53 - 17:58
PHL
-
SJU
8h 05m
1 stop
Spirit Airlines Logo
21:49 - 08:44
SJU
-
PHL
10h 55m
1 stop
£159Spirit Airlines
Fri, 17 Apr - Sun, 26 Apr
JetBlue Logo
15:02 - 00:58
PHL
-
SJU
8h 56m
1 stop
JetBlue Logo
05:15 - 14:07
SJU
-
PHL
8h 52m
1 stop
£186JetBlue
Tue, 24 Feb - Wed, 11 Mar
JetBlue Logo
13:37 - 00:51
PHL
-
SJU
10h 14m
1 stop
JetBlue Logo
06:10 - 14:07
SJU
-
PHL
8h 57m
1 stop
£192JetBlue
Sat, 21 Feb - Wed, 25 Feb
JetBlue Logo
18:30 - 01:34
PHL
-
SJU
7h 04m
1 stop
JetBlue Logo
07:55 - 15:55
SJU
-
PHL
8h 00m
1 stop
£200JetBlue
Wed, 1 Apr - Thu, 9 Apr

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

Our best Frontier deals on Philadelphia to San Juan Luis Munoz Marin Intl Airport flight tickets
Frontier
24 Mar
PHL20:44Philadelphia
3h 45m
SJU00:29San Juan Luis Munoz Marin Intl
30 Mar
SJU01:59San Juan Luis Munoz Marin Intl
4h 12m
PHL06:11Philadelphia
£118
Frontier
26 Apr
PHL16:17Philadelphia
3h 50m
SJU20:07San Juan Luis Munoz Marin Intl
2 May
SJU01:59San Juan Luis Munoz Marin Intl
4h 09m
PHL06:08Philadelphia
£126
Frontier
24 Mar
PHL12:46Philadelphia
9h 59m
1 stop
SJU22:45San Juan Luis Munoz Marin Intl
30 Mar
SJU01:59San Juan Luis Munoz Marin Intl
4h 12m
PHL06:11Philadelphia
£129

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
17 Feb
PHL08:00Philadelphia
8h 27m
1 stop
SJU17:27San Juan Luis Munoz Marin Intl
26 Feb
SJU06:15San Juan Luis Munoz Marin Intl
8h 07m
1 stop
PHL13:22Philadelphia
£229
Delta
23 Mar
PHL17:00Philadelphia
6h 15m
1 stop
SJU23:15San Juan Luis Munoz Marin Intl
27 Mar
SJU17:30San Juan Luis Munoz Marin Intl
7h 27m
1 stop
PHL00:57Philadelphia
£275
Delta
16 Feb
PHL05:31Philadelphia
10h 56m
1 stop
SJU17:27San Juan Luis Munoz Marin Intl
26 Feb
SJU06:15San Juan Luis Munoz Marin Intl
10h 35m
1 stop
PHL15:50Philadelphia
£285

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 8 February 2026.
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

Tue 24/3

20:44-00:29

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Mon 30/3

01:59-06:11

Nonstop4h 12m

£118

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sun 26/4

16:17-20:07

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Sat 2/5

01:59-06:08

Nonstop4h 09m

£126

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 24/3

12:46-22:45

1 stop9h 59m

San Juan Luis Munoz Marin Intl

Mon 30/3

01:59-06:11

Nonstop4h 12m

£129

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sun 26/4

20:39-00:29

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Sun 3/5

16:11-00:29

1 stop8h 18m

£131

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 17/4

15:08-18:48

Nonstop3h 40m

San Juan Luis Munoz Marin Intl

Sun 26/4

21:49-08:44

1 stop10h 55m

£135

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sun 26/4

06:15-14:31

1 stop8h 16m

San Juan Luis Munoz Marin Intl

Sun 3/5

16:11-00:29

1 stop8h 18m

£151

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 17/4

09:53-17:58

1 stop8h 05m

San Juan Luis Munoz Marin Intl

Sun 26/4

21:49-08:44

1 stop10h 55m

£159

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 24/2

15:02-00:58

1 stop8h 56m

San Juan Luis Munoz Marin Intl

Wed 11/3

05:15-14:07

1 stop8h 52m

£186

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 21/2

13:37-00:51

1 stop10h 14m

San Juan Luis Munoz Marin Intl

Wed 25/2

06:10-14:07

1 stop8h 57m

£192

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 1/4

18:30-01:34

1 stop7h 04m

San Juan Luis Munoz Marin Intl

Thu 9/4

07:55-15:55

1 stop8h 00m

£200

Flights are sorted by cheapest return 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 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 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 £207 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 £184 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 February 2026, prices for Philadelphia to San Juan Luis Munoz Marin Intl Airport flights are approximately 3% cheaper 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

Fastest flight time

3h 42m

Direct flights

Mon, Tue, Wed, Thu and Sat
The fastest flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport takes 3h 42m
Direct flights go from Philadelphia to San Juan Luis Munoz Marin Intl Airport on Monday, Tuesday, Wednesday, Thursday and Saturday. There are no airlines offering direct flights..
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 3h 42m, 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.

An easier way to manage your San Juan Luis Munoz Marin Intl Airport trip

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Philadelphia flight routes

According to popular flight searches on momondo this year
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