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Luis Munoz Marin Intl

$97+ Cheap flights from Philadelphia (PHL) to Luis Munoz Marin Intl (SJU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SJU
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to San Juan Luis Munoz Marin Intl are usually found in October or September, booked 61 days in advance, depart on a Monday or Wednesday and return on a Friday

Cheap flight deals from Philadelphia to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 28, 2025.

Round-trip from

$181
(Cheapflightsfares)

One-way from

$97
(eDestinos)

Popular in

December

Cheapest in

October

Average price

$298

Good round-trip deal

$228 or less

Good one-way deal

$126 or less
From Philadelphia to San Juan Luis Munoz Marin Intl
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One-way flight from Philadelphia to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 7% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Philadelphia to San Juan Luis Munoz Marin Intl.
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Price to beat on a one-way flight from Philadelphia to San Juan Luis Munoz Marin Intl.
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Find flight deals from Philadelphia to Luis Munoz Marin Intl

Cheapest flights from Philadelphia to Luis Munoz Marin Intl
Explore the most affordable flight options available from Philadelphia to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:12 pmPHL - SJU
Nonstop3h 46mFrontier
Mon 11/31:11 amSJU - PHL
Nonstop3h 58mFrontier
Deal found 7/26$179
This Cheapflightsfares deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/115:52 pmPHL - SJU
Nonstop3h 45mSpirit Airlines
Fri 8/1510:16 pmSJU - PHL
1 stop10h 36mSpirit Airlines
Deal found 7/26$194
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2312:54 pmPHL - SJU
Nonstop3h 48mMultiple Airlines
Fri 9/512:28 amSJU - PHL
Nonstop3h 59mMultiple Airlines
Deal found 7/26$200

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to Luis Munoz Marin Intl 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, Cheapflights users made 2,558,603 searches. Data last updated July 28, 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

Philadelphia

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 9/4

7:32 pm-11:23 pm

Nonstop3h 51m

San Juan Luis Munoz Marin Intl

Thu 9/11

12:28 am-4:27 am

Nonstop3h 59m

$181

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 8/11

5:52 pm-9:37 pm

Nonstop3h 45m

San Juan Luis Munoz Marin Intl

Fri 8/15

10:16 pm-8:52 am

1 stop10h 36m

$194

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 8/23

12:54 pm-4:42 pm

Nonstop3h 48m

San Juan Luis Munoz Marin Intl

Fri 9/5

12:28 am-4:27 am

Nonstop3h 59m

$200

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 10/15

7:00 am-4:05 pm

1 stop9h 05m

San Juan Luis Munoz Marin Intl

Tue 10/28

12:51 pm-9:36 pm

1 stop8h 45m

$236

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 8/25

7:00 am-2:17 pm

1 stop7h 17m

$97

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 8/30

8:01 pm-11:54 pm

Nonstop3h 53m

$98

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 8/13

5:40 pm-12:49 am

1 stop7h 09m

$118

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 9/26

5:00 pm-11:50 pm

1 stop6h 50m

$125

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

The best insider tips for Philadelphia to San Juan Luis Munoz Marin Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Philadelphia to San Juan Luis Munoz Marin Intl Airport trip
Airports
PHL

For a quick check-in, verify your airline’s terminal before arriving at PHL. Terminals are spread out, and only some are linked by indoor walkways.

Read more about PHLby Mark Chesnut
SJU

At SJU, Uber is a convenient option to reach the city. Hail one from marked areas outside arrivals for a cashless ride.

Read more about SJUby Brandon Schultz
Our travel experts
Mark Chesnut

Mark Chesnut

Expert on PHL

Mark Chesnut

Mark Chesnut

Mark Chesnut is a travel writer and public speaker with more than 30 years of experience. The 2019 winner of the NLGJA Excellence in Travel Writing Award, Mark is the author of the book “Prepare for Departure” and has covered air travel for multiple top consumer and trade media outlets.

Read more
Brandon Schultz

Brandon Schultz

Expert on SJU

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Best time to book a flight from Philadelphia to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Luis Munoz Marin Intl. Price data was last updated on July 25, 2025.

The best time to book flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport is 61 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Philadelphia to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to SJU?

Find hourly flight availability from Philadelphia to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

It’s typically best to fly out from Philadelphia to San Juan Luis Munoz Marin Intl Airport in the evening. Doing so could potentially save you 25% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Luis Munoz Marin Intl. Price data was last updated on July 27, 2025.

Travelers seeking maximum savings on their Philadelphia to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Tuesday at noon when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Philadelphia to San Juan Luis Munoz Marin Intl Airport

Explore weekly flight availability from Philadelphia to Luis Munoz Marin Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 28, 2025.

The most flights from PHL to SJU are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

What’s the top layover airport for flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

Share of 1-stop round-trip flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Chicago (ORD) – chosen by Cheapflights users on 29% of 1-stop itineraries from Philadelphia to San Juan Luis Munoz Marin Intl Airport on Cheapflights.

What’s the cheapest layover airport for flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

Average round-trip fare for 1-stop flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Raleigh (RDU) is the most affordable 1-stop option, with an average round-trip price of $183.

What’s the fastest layover option from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

Shortest average travel time for 1-stop one-way flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Orlando (MCO) have the shortest average one-way travel time for 1-stop routes: 4h 35m.

Which airport typically offers the quickest layover for flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

Average layover duration for 1-stop one-way flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Washington, D.C. (IAD) offer the fastest connection on this route, with an average layover time of 1h 18m.

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Luis Munoz Marin Intl. Reviews last updated July 28, 2025.
Read reviews from past customers who have flown Southwest, JetBlue, and Spirit Airlines from Philadelphia to San Juan Luis Munoz Marin Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
JetBlue
7.3
Good
2,914 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,040 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Frontier
5.9
Fair
3,238 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Philadelphia to San Juan Luis Munoz Marin Intl?

    Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Philadelphia to San Juan Luis Munoz Marin Intl. 8 airlines have flights from Philadelphia to San Juan Luis Munoz Marin Intl on a regular basis. Booking flights from Philadelphia to San Juan Luis Munoz Marin Intl should not be difficult; the airport handles an average of 6 outbound flights to San Juan Luis Munoz Marin Intl per day.

  • What are the cheapest airlines flying from Philadelphia to San Juan Luis Munoz Marin Intl Airport round-trip?

    Flying on Frontier is currently your cheapest option to San Juan Luis Munoz Marin Intl Airport, with prices starting at $181. Another option worth looking into is Spirit Airlines, starting at $190 round trip. Users have found that Frontier is 33% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Philadelphia to San Juan Luis Munoz Marin Intl Airport one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $97. Frontier flights start at $98 while deals on JetBlue start at $118 one-way.

  • What are the most reliable airlines from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Philadelphia to San Juan Luis Munoz Marin Intl Airport on time: Spirit Airlines (70%), American Airlines (60%), Qatar Airways (54%).

  • What are the cheapest flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

    While on average a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport is generally $534, our data shows the cheapest flight currently is $106. When looking at the most popular route, (Philadelphia - San Juan Luis Munoz Marin Intl), you can expect to pay $205 for that flight.

  • Where are the most common layover locations when flying from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

    Most of the time, Philadelphia to San Juan Luis Munoz Marin Intl Airport flights that have layovers will stop in Orlando.

  • What are some popular things to do or see while on a layover in Orlando?

    If you're on a layover in Orlando and looking for things to do, consider visiting Walt Disney World Resort, Universal Orlando Resort, or International Drive. Travelers on a layover in Orlando can visit Walt Disney World Resort, Universal Orlando Resort, and International Drive, by traveling 16.2 mi, 10.2 mi, and 9.9 mi, respectively after landing at Orlando. Travelers can book a car rental at Orlando for about $28 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Philadelphia to San Juan Luis Munoz Marin Intl Airport flights?

    The least popular layover on flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport is Miami.

  • Can I find deals for flights from Philadelphia to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Luis Munoz Marin Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Luis Munoz Marin Intl.

  • Can I find deals for business class flights from Philadelphia to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Philadelphia to Luis Munoz Marin Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Philadelphia to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Dorado
Fajardo
Luquillo
Rio Grande
Humacao

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Top 8 airlines flying from Philadelphia to Luis Munoz Marin Intl

Discover the top 8 airlines that operate flights from Philadelphia to Luis Munoz Marin Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Avelo AirlinesCheapest$86Average$159FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$129Average$253FlexibilityNo cancel feeOn-time65%
FrontierCheapest$147Average$275FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$209Average$409FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$213Average$471FlexibilityNo cancel feeOn-time63%
DeltaCheapest$215Average$346FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$244Average$460FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$350Average$537FlexibilityNo cancel feeOn-time69%

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