PHL - SJU

£61 Find Cheap Flights from Philadelphia to San Juan

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to San Juan departing on 9/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 25% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
£140
Overall average: £191
Spirit Airlines
Mon 2/3Fri 6/3
PHL - SJU • 1 stop
Cheapest direct flights
£164
Typical prices: £133-£280
Frontier
Fri 20/2Sun 22/2
PHL - SJU • Direct
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
Top airlines
Spirit Airlines
Cheapest • from £140 (return)
American Airlines
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to San Juan!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Philadelphia to San Juan (PHL-SJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Philadelphia to San Juan 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 return flight deals from Philadelphia to San Juan

Mon, 2 Mar - Fri, 6 Mar
Spirit Airlines Logo
19:46 - 10:17
PHL
-
SJU
13h 31m
1 stop
Spirit Airlines Logo
02:59 - 06:11
SJU
-
PHL
4h 12mdirect
£140Spirit Airlines
Fri, 20 Feb - Sun, 22 Feb
Frontier Logo
20:39 - 01:24
PHL
-
SJU
3h 45mdirect
Frontier Logo
02:54 - 06:06
SJU
-
PHL
4h 12mdirect
£164Frontier
Fri, 20 Feb - Sun, 22 Feb
Frontier Logo
20:39 - 01:24
PHL
-
SJU
3h 45mdirect
Frontier Logo
02:54 - 06:06
SJU
-
PHL
4h 12mdirect
£166Frontier
Fri, 27 Mar - Sat, 4 Apr
JetBlue Logo
12:00 - 15:50
PHL
-
SJU
3h 50mdirect
JetBlue Logo
07:00 - 11:05
SJU
-
PHL
4h 05mdirect
£168JetBlue
Fri, 27 Mar - Sat, 4 Apr
JetBlue Logo
08:41 - 15:23
PHL
-
SJU
6h 42m
1 stop
JetBlue Logo
07:00 - 11:05
SJU
-
PHL
4h 05mdirect
£178JetBlue
Fri, 20 Feb - Sun, 22 Feb
Frontier Logo
20:39 - 01:24
PHL
-
SJU
3h 45mdirect
Frontier Logo
02:54 - 06:06
SJU
-
PHL
4h 12mdirect
£181Frontier
Mon, 9 Mar - Wed, 18 Mar
JetBlue Logo
15:02 - 22:48
PHL
-
SJU
7h 46m
1 stop
JetBlue Logo
01:30 - 09:04
SJU
-
PHL
7h 34m
1 stop
£189JetBlue
Fri, 20 Feb - Sun, 22 Feb
Frontier Logo
22:59 - 12:57
PHL
-
SJU
12h 58m
1 stop
Frontier Logo
02:54 - 06:06
SJU
-
PHL
4h 12mdirect
£192Frontier
Mon, 16 Mar - Wed, 18 Mar
JetBlue Logo
18:31 - 01:13
PHL
-
SJU
6h 42m
1 stop
JetBlue Logo
01:30 - 09:04
SJU
-
PHL
7h 34m
1 stop
£197JetBlue
Wed, 18 Feb - Fri, 20 Feb
JetBlue Logo
13:33 - 22:51
PHL
-
SJU
8h 18m
1 stop
JetBlue Logo
17:23 - 23:29
SJU
-
PHL
7h 06m
1 stop
£205JetBlue
Booking Insights

KAYAK's insights & trends for Philadelphia to San Juan flights

Get data-powered insights and trends into flights from Philadelphia to San Juan 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 £174 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is £316 and £232 respectively.

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

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £175, prices are generally cheapest when you fly direct.

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.

Find deals
Expert advice

Expert advice for your flight from Philadelphia to San Juan

 
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
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.

Read more about FrontierBy Stefanie Waldek
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.

Read more about American AirlinesBy Harriet Baskas
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.

Read more about PHLBy Harriet Baskas
SJU

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

Read more about SJUBy Gabriel Leigh
Our travel experts
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 out at sea, likely en route to Antarctica or the Arctic.

Read more
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, 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
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 - Cheap tickets from Philadelphia to San Juan

Low seasonSeptember
Cheapest flight£92
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly (50% more expensive on average)
Flight from Philadelphia to San Juan

When to book flights from Philadelphia to San Juan

Are your dates flexible? Find out the best times to travel from Philadelphia to San Juan based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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.

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

    In the last 3 days, the lowest price for a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport was £92 for a one-way ticket and £140 for a return.

  • 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.

  • Which airline alliances offer flights from Philadelphia to San Juan?

    oneworld is the only airline alliance operating flights between Philadelphia and San Juan.

  • 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 return 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 direct 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 direct flights

Reviews of the top airline flying from Philadelphia to San Juan

 
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 San Juan? 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.
7.2
American AirlinesOverall score based on 11111 reviews
7.5Boarding
7.2Comfort
6.9Entertainment
6.4Food
8.0Crew
Airline reviews

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

10.0 ExcellentJill, Jan 2026
PHL - LAX
Read more American Airlines reviews

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

Flight was late and boarding was confusing because gate changed and I didn’t get a notification

Not comparable to Qatar Airways services on flights to Doha. Flight attendants provided basic services; I was never recognized by name or as an Executive Platinum member. Restrooms were not kept clean during the flight.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

The Phildalphia to Allentown portion was a BUS, not a plane. All was as expected.

Excellent - explanations were clear staff was nice and flight was comfortable

Airport in MXP is crazy. Get there at least 2 hours before flight.

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

Did not get the seat I selected and paid for.

The flight was canceled 3 hours after original take off time

Everything you need to know for your flight from Philadelphia to San Juan

Information on your arrival and departure airports

Philadelphia (PHL)
Luis Munoz Marin Intl (SJU)