PHL - SJU

Find cheap flights from Philadelphia to San Juan

1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Juan Luis Munoz Marin Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to San Juan, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to San Juan, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
Multiple Airlines
Mon 12/1
PHL - SJU • multi-stop
Cheapest one-way flights
Multiple Airlines
Mon 12/1
PHL - SJU • multi-stop
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Frontier's Economy Bundle includes a free carry-on.
Use taxis or Uber for quick trips from SJU to Old San Juan.
Expert advice
Expert advice
Expert advice
Expert advice
When to travel
October
Cheapest • 18% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Luis Munoz Marin Intl!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Philadelphia to Luis Munoz Marin Intl (PHL-SJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Luis Munoz Marin Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Luis Munoz Marin Intl

Multiple Airlines Logo
PHL
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SJU
4090 kmmulti-stop
Multiple Airlines Logo
SJU
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PHL
4090 kmmulti-stop
Multiple Airlines
Booking Insights

KAYAK's insights & trends for Philadelphia to Luis Munoz Marin Intl flights

Get data-powered insights and trends into flights from Philadelphia to Luis Munoz Marin Intl to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport is October, where tickets cost C$ 324 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is C$ 590 and C$ 433 respectively.

Can I save money by flying with a layover from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 403 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Expert advice

Expert advice for your flight from Philadelphia to Luis Munoz Marin Intl

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
American Airlines

Main Cabin Extra offers early boarding and complimentary drinks, ideal for a comfortable flight.


Download the American Airlines app for access to movies and TV series during your flight.

Frontier

Consider the Economy Bundle for a free carry-on and seat selection, saving on extra fees.


Opt for Premium Bundle for priority boarding and extra legroom, just $20 more than Economy.

Airports
PHL

PHL offers public transportation via SEPTA trains to Center City, taking about 30 minutes from various terminals, providing a cost-effective travel option.

SJU

For a quick city visit, taxis or Uber are ideal from SJU, taking about 25 minutes to Old San Juan, avoiding parking hassles.

Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines and PHL

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on Frontier

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on SJU

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more

Good to know

Low seasonSeptember
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly (50% more expensive on average)

When to book flights from Philadelphia to Luis Munoz Marin Intl

Are your dates flexible? Find out the best times to travel from Philadelphia to Luis Munoz Marin Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Philadelphia to San Juan flights

  • Which airlines fly directly from Philadelphia to San Juan?

    There are different companies offering daily flights from Philadelphia to San Juan, including Spirit, United, and jetBlue, but Frontier and American Airlines offer non-stop flights between the two cities as well. Frontier flies out of Terminal 1, but American Airlines operates flights out of Terminals A-East, A-West, B, C, and F, so check your departure information beforehand.

  • Which airline should I choose?

    If you’re looking for cheaper prices, Frontier might be the best choice, but if you’d rather have greater comfort, American Airlines would be better. Frontier flight prices also often don’t include any luggage. JetBlue is the biggest operator at SJU, and, despite their flights always having layovers, the number of daily jetBlue flights is much higher than any other airline, which can provide more flexibility in terms of departing schedule.

  • Are there onsite airport hotels at San Juan Airport?

    Yes, the award-winning San Juan Airport Hotel can be found here - specifically in Terminal D at SJU. Check-in time is between 3 p.m. and 12 a.m., and check-out is until noon. There is free Wi-Fi in all the rooms and common areas, and a restaurant and bar are available too. Pets are welcome at the hotel.

  • What are my transportation options upon arrival to San Juan Airport?

    A taxi ride from SJU to downtown San Juan is about 20 minutes. The public AMA buses also handle the transportation of passengers from San Juan Airport to Old San Juan, Isla Verde, and Condado. While it’s the cheapest method of transportation, it is not advised to travelers carrying heavy luggage as it might not be allowed on board. They run from 5 a.m. to 8 p.m. on weekdays only and stop at the airport's departure level in Terminals A, D, and E. Otherwise, many visitors opt to rent a car.

  • Which airlines offer Wi-Fi service onboard planes from Philadelphia to San Juan?

    American Airlines, JetBlue, Delta, and Alaska Airlines offer inflight Wi-Fi service on the Philadelphia to San Juan flight route.

  • Which aircraft models fly most regularly from Philadelphia to San Juan?

    The Airbus A321neo is the aircraft model that flies most regularly on the Philadelphia to San Juan flight route.

  • On which days can I fly direct from Philadelphia to San Juan?

    There are direct flights from Philadelphia to San Juan on a daily basis.

  • How does KAYAK find such low prices on flights from Philadelphia to San Juan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to San Juan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to San Juan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Philadelphia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to San Juan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Juan with an airline and back to Philadelphia with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to San Juan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Juan from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport

  • Philadelphia International Airport (PHL) has seven different terminals. In order to navigate the rather large airport, there are free shuttle buses running from Terminal F (Gate F-14) to Gate C-16 in Terminal C (which also provides access to Terminals B and D) and Gate A-1 (which provides access to Terminals A-West and A-East).
  • Passengers who want to leave their car at PHL will find parking garages at all the different terminals (A-East, A-West, B, C, D, E, and F). International airlines operate from Terminal A-West, but different domestic airlines fly out of different terminals, so make sure you check your departure information before going to the airport – especially if you’re flying with American Airlines – so you know where exactly to leave your vehicle.
  • Luis Muñoz Marín International Airport (SJU), also known as just San Juan Airport, is located just three miles from the city center. U.S. citizens do not need passports or immunizations to travel in Puerto Rico.
  • If you want to grab a bite after landing at SJU, there are several restaurants throughout Terminals A, B, and C, including Gustos Café, Vienna Snack, and Mango's Village, just to name a few. There are also duty-free shops in these terminals, in case you want to take advantage of the lower prices of products at the airport.
  • If you wish to rent a car at SJU, there are several companies that you can head to, including Alamo and Budget. Onsite rental car companies are based on the first level of the Garage Parking area.

Prefer to fly direct from Philadelphia to San Juan?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Philadelphia to San Juan Luis Munoz Marin Intl.
Find which airlines fly direct from Philadelphia Airport to San Juan Luis Munoz Marin Intl Airport, which days they fly and book direct flights.

Direct departures

Philadelphia to San Juan Luis Munoz Marin Intl

Monday

American Airlines,Frontier,Spirit Airlines, +1 more

American Airlines,Frontier, +2 more

Tuesday

American Airlines,Frontier,Spirit Airlines, +1 more

American Airlines,Frontier, +2 more

Wednesday

American Airlines,Frontier,Spirit Airlines, +1 more

American Airlines,Frontier, +2 more

Thursday

American Airlines,Frontier,Spirit Airlines, +1 more

American Airlines,Frontier, +2 more

Friday

American Airlines,Frontier,Spirit Airlines, +1 more

American Airlines,Frontier, +2 more

Saturday

American Airlines,Frontier,Spirit Airlines, +1 more

American Airlines,Frontier, +2 more

Sunday

American Airlines,Frontier,Spirit Airlines, +1 more

American Airlines,Frontier, +2 more

See more nonstop flights

Direct returns

San Juan Luis Munoz Marin Intl to Philadelphia

Monday

American Airlines,Frontier,Spirit Airlines, +1 more

American Airlines,Frontier, +2 more

Tuesday

American Airlines,Frontier,Spirit Airlines, +1 more

American Airlines,Frontier, +2 more

Wednesday

American Airlines,Frontier,Spirit Airlines, +1 more

American Airlines,Frontier, +2 more

Thursday

American Airlines,Frontier,Spirit Airlines, +1 more

American Airlines,Frontier, +2 more

Friday

American Airlines,Frontier,Spirit Airlines, +1 more

American Airlines,Frontier, +2 more

Saturday

American Airlines,Frontier,Spirit Airlines, +1 more

American Airlines,Frontier, +2 more

Sunday

American Airlines,Frontier,Spirit Airlines, +1 more

American Airlines,Frontier, +2 more

See more nonstop flights

Reviews of the top airline flying from Philadelphia to Luis Munoz Marin Intl

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to San Juan. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Philadelphia to Luis Munoz Marin Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
5.7
FrontierOverall score based on 3055 reviews
5.5Comfort
6.0Boarding
4.6Food
4.3Entertainment
6.6Crew
Airline reviews

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

2.0 MediocreAnonymous, Jan 2026
PHX - DEN
Read more Frontier reviews

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

This company socks. It's fraud. They canceled our flight yesterday, and today we were late because of a really long line at the check in bag. At the rebook station, there was ton of people. The workers were all rude. I am gonna make a report to FTC.

One of the worst travel experiences I've had. Had a flight scheduled with CVG to RSW on VLSWQX this morning departing at 5:30. Two individuals at the gate and one was in training. Not her fault but she didn't have the ability to check people in resulting in at least 15 families that didn't make it on the plane because they weren't checked into the system in time. When arriving at the airport to drop off our prepaid checked bags, the bag drop off agent asked if we could check our bags at the gate because of the long line. We said no problem so arrived at the gate by 5:00. They told those people that had previously paid for checked bags to stand off to the side while they let others that either didn't have a checked bag or their bag was already on the plan through. Realizing the gate workers had an issue, they either called for help or this lady showed up late for work as she didn't arrive until 5:15. The worker who had been there training the other individual and working diligently to make sure all passengers got on board. He even said that at one point all people that are currently in line are fine but asked the person in training to stand outside the ticketing area around 5:15 to notify any late travels that the flight was in boarding process and they arrrived too late. At that point, we're sill standing off to the side with our pre-paid checked bags patiently waiting. When the new lady arrived she couldn't have been more rude. It was an awful seen. Essentially they had asked for those without an assigned seat to board last, those with pre-paid checked bag stand off to the site and any traveling with a larger items that needed to be checked at the gate (such as a stroller), wait on the side. They realized that the flight needed to leave on time so the gate attendant shut the gate. So anyone without a seat assignment, those that had pre-checked bags, and the worst one I saw was a mother with two infant children was in line with use because she was asked to stand to the side because her stroller. When they shut the door to the plan they told her she could no longer get on. Her checked bags were already on the plane with her car keys in them, and the lady told her we couldn't accept anyone else on because the door was shut. She didn't even have a way to get home from the airport. Truely evil behavior. I've flown Frontier enough to know customer service is not a top priority in the company's mission, but this was an all-time low. I'm sending this after an 18 hour drive that our family just completed to Bonita Springs . I felt really bad for the lady being trained and the other individual trying to help, but when the new lady came to the gate she was truly one of the rudest individuals I've ever met. One lady had been there since 4am but because she didn't have an assigned seat they wouldn't let her on the plan.

I loved the staff on the plane. So friendly and helpful! However, there was an argument and misunderstanding by the staff and a customer at the gate, and the staff member was being unprofessional. When we arrived in Atlanta, we waited 1.5 hrs for our luggage to arrive. When I asked the airport attendant, they said Frontier had the longest wait for luggage out of any airlines, and that they could not be held responsible for the delay.

Everything you need to know for your flight from Philadelphia to Luis Munoz Marin Intl

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