SJU - PHL

$86 Find Cheap Flights from San Juan Airport to Philadelphia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Luis Munoz Marin Intl to Philadelphia departing on 12/20. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Philadelphia

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

Cheapest round-trip
$145
Overall average: $204
Frontier
Sun 12/21Sun 1/11
SJU - PHL • Non-stop
Cheapest one-way
$86
Typical prices: $85-$189
Frontier
Sat 12/20
SJU - PHL • 1 stop
Our travelers' advice
AI-generated summary based on content written by travel experts
Frontier's Economy Bundle includes a carry-on bag.
Use the SEPTA Airport Line for downtown Philadelphia access.
Expert advice
Expert advice
Expert advice
Expert advice
Video guide: How to find cheap flights to Philadelphia
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Top airlines
Frontier
Cheapest • from $145 (round-trip)
American Airlines
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 26% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 19% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Philadelphia!
Flight Deals
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Luis Munoz Marin Intl to Philadelphia 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 Luis Munoz Marin Intl to Philadelphia

Sun, Dec 21 - Sun, Jan 11
Frontier Logo
1:59 am - 5:04 amSJU-PHL
4h 05mnonstop
Frontier Logo
8:37 pm - 1:24 amPHL-SJU
3h 47mnonstop
$145Frontier
Find Deal
Wed, Dec 24 - Fri, Jan 2
Frontier Logo
11:57 am - 3:02 pmSJU-PHL
4h 05mnonstop
Frontier Logo
7:42 pm - 12:29 amPHL-SJU
3h 47mnonstop
$148Frontier
Find Deal
Mon, Dec 22 - Wed, Jan 7
Frontier Logo
1:59 am - 5:04 amSJU-PHL
4h 05mnonstop
Frontier Logo
5:57 pm - 1:42 amPHL-SJU
6h 45m1 stop
$149Frontier
Find Deal
Wed, Dec 24 - Thu, Jan 1
Frontier Logo
11:57 am - 3:02 pmSJU-PHL
4h 05mnonstop
Frontier Logo
7:42 pm - 12:29 amPHL-SJU
3h 47mnonstop
$156Frontier
Find Deal
Thu, Nov 13 - Sun, Nov 16
Multiple Airlines Logo
6:54 pm - 1:25 amSJU-PHL
7h 31m1 stop
Multiple Airlines Logo
1:11 pm - 1:32 amPHL-SJU
11h 21m1 stop
$158Multiple Airlines
Find Deal
Thu, Dec 25 - Tue, Jan 6
Frontier Logo
1:59 am - 5:04 amSJU-PHL
4h 05mnonstop
Frontier Logo
3:08 pm - 7:55 pmPHL-SJU
3h 47mnonstop
$166Frontier
Find Deal
Fri, Jan 16 - Tue, Jan 20
Frontier Logo
6:59 pm - 12:55 amSJU-PHL
6h 56m1 stop
Frontier Logo
8:00 pm - 9:55 amPHL-SJU
12h 55m1 stop
$168Frontier
Find Deal
Thu, Dec 4 - Sun, Dec 7
Frontier Logo
10:42 am - 6:08 pmSJU-PHL
8h 26m1 stop
Frontier Logo
8:02 pm - 12:49 amPHL-SJU
3h 47mnonstop
$171Frontier
Find Deal
Fri, Jan 16 - Sun, Jan 25
Frontier Logo
6:59 pm - 12:55 amSJU-PHL
6h 56m1 stop
Frontier Logo
8:37 pm - 1:24 amPHL-SJU
3h 47mnonstop
$175Frontier
Find Deal
Wed, Dec 3 - Mon, Dec 8
American Airlines Logo
6:25 am - 9:34 amSJU-PHL
4h 09mnonstop
American Airlines Logo
6:55 pm - 11:52 pmPHL-SJU
3h 57mnonstop
$235American Airlines
Find Deal
Booking Insights

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

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

Find cheap flights to Philadelphia
Find cheap flights to Philadelphia

Planning a trip from Luis Munoz Marin Intl to Philadelphia? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What’s the cheapest day of the week to fly from San Juan Airport to Philadelphia?

The average price of all round-trip flights from San Juan Luis Munoz Marin Intl Airport to Philadelphia clicked on KAYAK for each day over the last 12 months.

For San Juan Airport to Philadelphia, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Philadelphia back to San Juan Airport, the best deals are generally found on Monday, with Thursday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to Philadelphia, 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 San Juan Luis Munoz Marin Intl Airport to Philadelphia is February, where tickets cost $177 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $298 and $249 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to Philadelphia, 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 San Juan Luis Munoz Marin Intl Airport to Philadelphia, you should book around 2 weeks before departure, which saves you about 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 2 weeks before departure.

Expert advice

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

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-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.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Frontier

Economy Bundle includes carry-on bag and seat choice, cheaper online than at airport.


Premium Bundle offers priority boarding and extra legroom, often just $20 more than Economy.

Read more about Frontierby Stefanie Waldek
American Airlines

Basic Economy includes late boarding and no free checked bags; consider Main Cabin for flexibility.


Main Cabin Extra offers early boarding and complimentary drinks, ideal for longer flights.

Airports
SJU

For late-night departures, stock up on food before arriving at SJU, as most shops and restaurants close early.

Read more about SJUby Gabriel Leigh
PHL

Take the SEPTA Airport Line to reach downtown Philadelphia in about 30 minutes for a cost-effective option.

Read more about PHLby Harriet Baskas
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 on the 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, 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
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 seasonMarch
Cheapest flight$86
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from San Juan Airport to Philadelphia

When to book flights from Luis Munoz Marin Intl to Philadelphia

Are your dates flexible? Find out the best times to travel from Luis Munoz Marin Intl to Philadelphia 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 San Juan Airport to Philadelphia flights

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

    In the last 3 days, the lowest price for a flight from San Juan Luis Munoz Marin Intl Airport to Philadelphia was $86 for a one-way ticket and $145 for a round-trip.

  • Do I need a passport to fly between San Juan Airport and Philadelphia?

    A passport is required to fly from San Juan Airport to Philadelphia.

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

    All the following airlines offer inflight Wi-Fi service on the San Juan Airport to Philadelphia flight route: American Airlines, Iberia, Finnair, Delta, British Airways, Air Canada, and JetBlue.

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

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

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

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

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

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

  • Which is the best airline for flights from San Juan to Philadelphia, American Airlines or Spirit Airlines?

    The two airlines most popular with KAYAK users for flights from San Juan to Philadelphia are American Airlines and Spirit Airlines. With an average price for the route of $397 and an overall rating of 7.2, American Airlines is the most popular choice. Spirit Airlines is also a great choice for the route, with an average price of $210 and an overall rating of 6.3.

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

    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 San Juan Airport to Philadelphia.

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

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

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

    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 Philadelphia with an airline and back to San Juan Airport with another airline. Booking your flights between San Juan Airport and PHL can sometimes prove cheaper using this method.

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

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $128 or less one-way and $217 or less round-trip.

Prefer to fly direct from San Juan Airport to Philadelphia?

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

Direct departures

San Juan Luis Munoz Marin Intl to Philadelphia

Monday

American Airlines, Frontier, Spirit Airlines

American Airlines, Frontier, +1 more

Tuesday

American Airlines, Frontier, Spirit Airlines

American Airlines, Frontier, +1 more

Wednesday

American Airlines, Frontier, Spirit Airlines

American Airlines, Frontier, +1 more

Thursday

American Airlines, Frontier, Spirit Airlines

American Airlines, Frontier, +1 more

Friday

American Airlines, Frontier, Spirit Airlines

American Airlines, Frontier, +1 more

Saturday

American Airlines, Frontier, Spirit Airlines

American Airlines, Frontier, +1 more

Sunday

American Airlines, Frontier, Spirit Airlines

American Airlines, Frontier, +1 more

See more direct flights

Direct returns

Philadelphia to San Juan Luis Munoz Marin Intl

Monday

American Airlines, Frontier, Spirit Airlines

American Airlines, Frontier, +1 more

Tuesday

American Airlines, Frontier, Spirit Airlines

American Airlines, Frontier, +1 more

Wednesday

American Airlines, Frontier, Spirit Airlines

American Airlines, Frontier, +1 more

Thursday

American Airlines, Frontier, Spirit Airlines

American Airlines, Frontier, +1 more

Friday

American Airlines, Frontier, Spirit Airlines

American Airlines, Frontier, +1 more

Saturday

American Airlines, Frontier, Spirit Airlines

American Airlines, Frontier, +1 more

Sunday

American Airlines, Frontier, Spirit Airlines

American Airlines, Frontier, +1 more

See more direct flights

Reviews of the top 3 airlines serving from Luis Munoz Marin Intl to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from San Juan to Philadelphia. 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 Luis Munoz Marin Intl to Philadelphia? 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 11028 reviews
7.2Comfort
8.0Crew
7.5Boarding
6.4Food
6.9Entertainment
Airline reviews

the trip to madrid was uncomfortable with my legs touching the seat in front of me

10.0 ExcellentAnonymous, Oct 2025MSP - PHL
Read more American Airlines reviews

the trip to madrid was uncomfortable with my legs touching the seat in front of me

Very crowded flight but what can you expect these days?? Crew was accommodating.

Small outdated plane from Philly to Des Moines with very uncomfortable seats. The plane was old, so we had mechanical issues that delayed us for 3 hours with very little communication. It was a very unpleasant experience and I will try to never fly AA again.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

Internet was a bit expensive and did not work ask that week otherwise a good flight

They don't make it easy or promote their food options. Dirty plane. Delayed.

International baggage recheck process in Philadelphia was a disaster. Waited 1 hour and 45 minutes to receive our bags. Waited 15 minutes to recheck bags, flight notification boards were blank so we asked an AA representative for our connecting gate and we were directed to the wrong terminal and gate. Our connection window was over 3 hours and we made our flight by 5 minutes. We pulled away from the gate and sat on the runway for 1 1/2 hours. 1 of our 4 bags didn’t make it to Phoenix. The mobile app for lost baggage didn’t work, the AA rep had to manually fix.

I miss my flight and they could not rebook me that day because the other flight was full, and for the next day I had to pay a whole new fee again which I think is unprofessional

The flight had a delay that made me being in a real rush to take the second flight. The delay was almost for 2 hours. They moved us from gate to gate in 4 times. Once I arrived to Philadelphia, I got to run thorough all the airport, as the train was already closed by that time. So I got sick with asthma for all the running I had to do. And I was the last one to board, when it was almost closed. So irresponsable with the people

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

They didn't let me board with a proper boarding pass. I threw away my bags so that I can board and was defined boarding. Had to take the next flight after paying more.

Great! I intend to use Spirit for future flights. No complaints .

Seats are not very comfortable, maybe a little more padding for a 2hr plus flight

Vegas is such a quick flight that amenities aren’t the important part, in my opinion. Just get me there efficiently and safely, and that’s exactly what they did!

The flight was severely delayed due to the missing flight attendants.

Everything was on time and the crew was very helpful. Would definitely use again

Offer snacks for free. You are charging for the flight for the carry on for the seat and for a snack??? Lord

We paid for upgrade seats (3A & 3B) the seats on front and the seats behind us got complimentary water & soda, but we got charged, had to pay for everything. Does not make any sense ?

Departure was right on time. The Orlando base crew from Atlanta to Puerto Rico was the BEST. The return flight crew was OK.

Spirit charges you to breathe in their presence. They have you pick and buy your seat in advance and then I got bumped from the seat I paid for because THEY overbooked the flight by a dozen people. they do not provide any entertainment, they do not provide even a small cup of water - you have to pay for everything. I will never fly Spirit again.

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

It was well done. It was my first time flying with them and I was nervous b/c I have heard of many cancelled and/or delray flights. Everything went smoothly.

Just know that everything, and I mean everything is “ala cart”. 60$ just to put something in the overhead bin. I will never fly Frontier again nor do I recommend them to anyone else.

The single worst check in experience I could imagine. I’ll never do any business with Frontier or any affiliated company

Too many extra fees, uncomfortable, little leg room. Will not recommend this airline.

Everyone seemed to be in zone 1 for boarding. Maybe break it up a little. Otherwise, smooth flight.

Frontier is the Walmart of airlines. Frontier has removed adjustability and comfort from their seats to make the flight lighter and save gas. This makes it impossible to sleep on their flights. Their customer service is abysmal. Once, I bought a drink on the plane, and they swiped my credit card on the plane to pay for it. Then I got three weeks of daily notices from my bank telling me they tried to charge the wrong card number over and over again. I tried to call them, but they removed the ability to actually talk to someone that can resolve such a problem from their company to cut corners. The only way to talk to someone in person is to go to the check-in counter at the airport (40 minutes drive from my house). Eventually their system gave up on trying to charge the card, after 21 days of repeated tries. They don't pad their prices even a little to handle customer service issues like missed flights. They also have a blanket policy preventing helping you reschedule a missed flight if their system says you "cancelled" your own flight online. This is a major problem because their website is broken on mobile devices, the only web browser you have at the airport when their gate staff tell you that you have to reschedule your own missed flight online because they can't help you. I tried to reschedule my flight on my android device and instead, their website crashed and "cancelled" my missed flight. When I got to the counter, the agent argued with me for 5 minutes insisting that I intentionally cancelled my own flight (implying I had to buy another flight). She missed the point: the problem was that I could not buy another flight because their website is broken. I left to avoid more conflict with the "customer service" agent. I tried to redress my issue with their only other "customer service" chanel available: the contact form on their website. The response I got was more of the same: you cancelled your own flight, according to our website / computer records, therefore we won't help you. I was trying to explain the problem with their broken website that cost me hundreds of dollars by crashing / malfunctioning and resulting in a cancelled flight, but they only had deaf ears for this problem. Worst customer service I have ever experienced. I will never buy another Frontier flight again, because it is a risky, painful move that I will likely regret often.

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

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