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$66+ Cheap flights from Luis Munoz Marin Intl (SJU) to Philadelphia (PHL)

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — PHL
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Find cheap flights from Luis Munoz Marin Intl to Philadelphia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Philadelphia are usually found in February or March, booked 14 days in advance, depart on a Friday or Wednesday and return on a Monday

Cheap flight deals from Luis Munoz Marin Intl to Philadelphia

Cheapest flights from Luis Munoz Marin Intl to Philadelphia
Explore the most affordable flight options available from Luis Munoz Marin Intl to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Mon 12/226:00 amSJU - PHL
1 stop28h 07mMultiple Airlines
Wed 1/76:49 pmPHL - SJU
1 stop7h 01mMultiple Airlines
Deal found 12/9$157
This eDestinos deal was found by Cheapflights users on 12/10. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/223:54 amSJU - PHL
1 stop21h 32mFrontier
Wed 1/76:49 pmPHL - SJU
1 stop13h 19mFrontier
Deal found 12/10$158
This Frontier deal was found by Cheapflights users on 12/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/232:55 pmSJU - PHL
1 stop9h 03mFrontier
Sun 1/181:49 pmPHL - SJU
1 stop12h 14mFrontier
Deal found 12/9$160
This Cheapflightsfares deal was found by Cheapflights users on 12/8. 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.
Sun 12/213:55 amSJU - PHL
1 stop9h 38mFrontier
Sun 1/47:42 pmPHL - SJU
Nonstop3h 47mFrontier
Deal found 12/8$166
This FlightHub deal was found by Cheapflights users on 12/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:54 amSJU - PHL
1 stop21h 32mFrontier
Tue 1/68:30 amPHL - SJU
Nonstop3h 47mFrontier
Deal found 12/9$169
This Cheapflightsfares deal was found by Cheapflights users on 12/10. 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.
Sun 12/281:59 amSJU - PHL
Nonstop4h 01mSpirit Airlines
Sat 1/38:04 pmPHL - SJU
Nonstop3h 46mSpirit Airlines
Deal found 12/10$175
This Cheapflightsfares deal was found by Cheapflights users on 12/11. 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 12/189:06 pmSJU - PHL
Nonstop4h 05mFrontier
Sun 1/43:09 pmPHL - SJU
Nonstop3h 47mFrontier
Deal found 12/11$176
This Cheapflightsfares deal was found by Cheapflights users on 12/10. 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.
Tue 12/239:06 pmSJU - PHL
Nonstop4h 05mFrontier
Thu 1/1512:54 pmPHL - SJU
1 stop9h 46mFrontier
Deal found 12/10$177
This Frontier deal was found by Cheapflights users on 12/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/232:55 pmSJU - PHL
1 stop9h 03mFrontier
Sat 1/34:12 pmPHL - SJU
Nonstop3h 47mFrontier
Deal found 12/11$178
This Frontier deal was found by Cheapflights users on 12/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/221:59 amSJU - PHL
Nonstop4h 05mFrontier
Tue 1/208:00 amPHL - SJU
Nonstop3h 45mFrontier
Deal found 12/11$179

Find flight deals from Luis Munoz Marin Intl to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Luis Munoz Marin Intl (SJU) to Philadelphia (PHL). 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 December 12, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$117
(CheapOair)

One-way from

$66
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$235

Good round-trip deal

$177 or less

Good one-way deal

$114 or less
Provider with most accurate pricing for San Juan Luis Munoz Marin Intl-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for San Juan Luis Munoz Marin Intl-Philadelphia flights.
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From San Juan Luis Munoz Marin Intl to Philadelphia
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One-way flight from San Juan Luis Munoz Marin Intl to Philadelphia
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Highest demand for flights based on searches. 8% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from San Juan Luis Munoz Marin Intl to Philadelphia.
Search Deals
Price to beat on a one-way flight from San Juan Luis Munoz Marin Intl to Philadelphia.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Luis Munoz Marin Intl to Philadelphia 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 December 12, 2025.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Philadelphia that are best for you.

Fly from

Luis Munoz Marin Intl

Fly to

Philadelphia

Route

Depart

Return

Price

San JuanPhiladelphia

SJU - PHL

SJUPHL

San Juan Luis Munoz Marin Intl

Fri 4/17

7:00 am-11:05 am

Nonstop4h 05m

Philadelphia

Sun 4/26

12:00 pm-3:50 pm

Nonstop3h 50m

$278

San JuanPhiladelphia

SJU - PHL

SJUPHL

San Juan Luis Munoz Marin Intl

Wed 6/3

7:00 am-11:05 am

Nonstop4h 05m

Philadelphia

Wed 6/10

12:00 pm-3:50 pm

Nonstop3h 50m

$296

San JuanPhiladelphia

SJU - PHL

SJUPHL

San Juan Luis Munoz Marin Intl

Fri 4/24

2:35 pm-11:01 pm

1 stop8h 26m

Philadelphia

Sun 4/26

12:00 pm-3:50 pm

Nonstop3h 50m

$341

San JuanPhiladelphia

SJU - PHL

SJUPHL

San Juan Luis Munoz Marin Intl

Tue 6/9

7:00 am-11:05 am

Nonstop4h 05m

Philadelphia

Thu 6/18

12:00 pm-3:50 pm

Nonstop3h 50m

$368

San JuanPhiladelphia

SJU - PHL

SJUPHL

San Juan Luis Munoz Marin Intl

Thu 4/9

5:05 am-5:15 pm

2 stops12h 10m

Philadelphia

Tue 4/14

9:10 am-9:05 pm

2 stops11h 55m

$395

San JuanPhiladelphia

SJU - PHL

SJUPHL

San Juan Luis Munoz Marin Intl

Fri 4/3

7:00 am-11:05 am

Nonstop4h 05m

Philadelphia

Sun 4/19

12:00 pm-9:04 pm

1 stop9h 04m

$406

San JuanPhiladelphia

SJU - PHL

SJUPHL

San Juan Luis Munoz Marin Intl

Thu 2/12

7:00 am-5:40 pm

2 stops11h 40m

Philadelphia

Mon 2/16

5:15 am-4:55 pm

2 stops10h 40m

$460

San JuanPhiladelphia

SJU - PHL

SJUPHL

San Juan Luis Munoz Marin Intl

Mon 2/2

2:05 am-2:31 pm

2 stops13h 26m

Philadelphia

Tue 2/10

8:05 am-9:26 pm

1 stop12h 21m

$465

San JuanPhiladelphia

SJU - PHL

SJUPHL

San Juan Luis Munoz Marin Intl

Tue 3/24

1:05 am-2:24 pm

2 stops13h 19m

Philadelphia

Tue 3/31

11:45 am-8:34 pm

1 stop8h 49m

$465

San JuanPhiladelphia

SJU - PHL

SJUPHL

San Juan Luis Munoz Marin Intl

Tue 2/10

2:05 am-2:31 pm

2 stops13h 26m

Philadelphia

Sun 2/15

5:00 pm-6:11 am

2 stops12h 11m

$465

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 22 results
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Compare providers for flights from Luis Munoz Marin Intl to Philadelphia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Luis Munoz Marin Intl to Philadelphia in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Juan Luis Munoz Marin Intl Airport-Philadelphia flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on San Juan Luis Munoz Marin Intl Airport-Philadelphia flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from San Juan Luis Munoz Marin Intl Airport-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Juan Luis Munoz Marin Intl Airport-Philadelphia flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Juan Luis Munoz Marin Intl Airport-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Luis Munoz Marin Intl 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 San Juan Luis Munoz Marin Intl Airport to Philadelphia

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

Use this chart to determine the optimal time to book a round-trip flight from Luis Munoz Marin Intl to Philadelphia. Price data was last updated on December 5, 2025.

Booking 14 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Juan Luis Munoz Marin Intl Airport to Philadelphia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Philadelphia (average of $76). Flying from San Juan Luis Munoz Marin Intl Airport to Philadelphia in August is currently the most expensive (average of $100). 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 SJU to PHL?

Find hourly flight availability from Luis Munoz Marin Intl to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

It’s optimal to fly from San Juan Luis Munoz Marin Intl Airport to Philadelphia in the evening. By choosing this option you can save up to 53% on the cost of your flight, compared to a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Luis Munoz Marin Intl to Philadelphia. Price data was last updated on December 6, 2025.

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

How much does it cost to fly round-trip from San Juan Luis Munoz Marin Intl Airport to Philadelphia?

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

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your San Juan Luis Munoz Marin Intl Airport to Philadelphia trip
Airlines
Frontier

Frontier's UpFront Plus seats guarantee an empty middle seat, enhancing comfort on medium-haul flights.


Frontier's Economy Bundle includes a carry-on bag, seat selection, and no cancellation fees, saving costs.

Read more about FrontierBy Marisa Garcia
Spirit Airlines

Spirit's Big Front Seats offer 11 inches more legroom, ideal for comfort on medium-haul flights.


Spirit's Saver$ Club offers discounts on luggage, seats, and boarding, reducing overall travel costs.

Read more about Spirit AirlinesBy Daniel Scheffler
Airports
SJU

Security wait times at SJU vary. Arrive two hours early for domestic flights to ensure a smooth departure.

Read more about SJUBy Brandon Schultz
PHL

For a quick trip to Center City, take SEPTA from PHL. It's efficient and faster than other options.

Read more about PHLBy Mark Chesnut
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
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

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated December 12, 2025.
Get a feel of what it's like to fly with American Airlines, Spirit Airlines, and Frontier from San Juan Luis Munoz Marin Intl Airport to Philadelphia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,048 reviews

Boarding

7.5

Food

6.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
American Airlines
7.2
Good
11,048 reviews
American Airlines
7.2
Good
11,048 reviews

Boarding

7.5

Food

6.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
Spirit Airlines
6.3
Okay
8,174 reviews
American Airlines
7.2
Good
11,048 reviews

Boarding

7.5

Food

6.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
Frontier
5.8
Fair
3,084 reviews
American Airlines
7.2
Good
11,048 reviews

Boarding

7.5

Food

6.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

Related info for your journey

Find useful and relevant information for your journey from Luis Munoz Marin Intl to Philadelphia. 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 into for flights to Philadelphia from San Juan Luis Munoz Marin Intl?

    For a flight from San Juan Luis Munoz Marin Intl to Philadelphia, you will be flying into Philadelphia. Philadelphia (PHL) is just 7.0 mi from the center of the city. Philadelphia is the only Philadelphia airport and it handles 7 inbound flights from San Juan Luis Munoz Marin Intl per day. 3 airlines have flights to Philadelphia from San Juan Luis Munoz Marin Intl on a regular basis.

  • How long is the flight from San Juan Luis Munoz Marin Intl Airport to Philadelphia?

    Departing from San Juan Luis Munoz Marin Intl Airport to Philadelphia will take you 4h 05m. The distance between San Juan Luis Munoz Marin Intl Airport and Philadelphia is about 1579 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Our cheapest airline available from San Juan Luis Munoz Marin Intl Airport to Philadelphia is Spirit Airlines. Our recent data shows that you can find tickets from as low as $127 on this airline. Additional options worth looking into are Frontier and American Airlines, starting at $129 and $198 round-trip. Spirit Airlines is 44% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $73. However, be on the lookout for offers from Frontier and JetBlue, as they are both options that can get you from San Juan Luis Munoz Marin Intl Airport to Philadelphia for a low price.

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

    Before booking your flight to Philadelphia from San Juan Luis Munoz Marin Intl Airport, check out the most reliable airlines to get you to your destination on time: Spirit Airlines (90%), Qatar Airways (83%), American Airlines( 74%).

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

    Looking for the cheapest flight from San Juan Luis Munoz Marin Intl Airport to Philadelphia? While on average our users pay $243, our data indicates the cheapest price to be $67. The most popular route (San Juan Luis Munoz Marin Intl - Philadelphia), is priced around $120.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Luis Munoz Marin Intl to Philadelphia 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 San Juan Luis Munoz Marin Intl Airport to Philadelphia?

    Currently, February is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Philadelphia (average of $76). Flying from San Juan Luis Munoz Marin Intl Airport to Philadelphia in August is currently the most expensive (average of $100). 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 Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Pottstown
King of Prussia
Reading
Ocean City
Cherry Hill
Lewes
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Newark
Millville
Chester

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Top 3 airlines flying from Luis Munoz Marin Intl to Philadelphia

Discover the top 3 airlines that operate flights from Luis Munoz Marin Intl to Philadelphia. 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$127Average$225FlexibilityNo cancel feeOn-time65%
FrontierCheapest$136Average$236FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$198Average$396FlexibilityNo cancel feeOn-time71%

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