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Cheap Flights from Philadelphia (PHLA) to San Juan (SJU)

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      Compare Philadelphia to San Juan Luis Munoz Marin flight deals

      Find the cheapest month or even day of the year to fly to San Juan Luis Munoz Marin

      Book the best San Juan Luis Munoz Marin fare with no extra fees

      Flight deals from Philadelphia to San Juan Luis Munoz Marin

      Looking for a cheap last-minute deal or the best return flight from Philadelphia to San Juan Luis Munoz Marin Airport? If you want to travel next month, return fares start from $165. Find the lowest prices on one-way and return tickets right here.
      San Juan.$165 per passenger.Departing Mon, 26 Oct, returning Wed, 4 Nov.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Mon, 26 Oct, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Frontier Airlines departs from San Juan Luis Munoz Marin on Wed, 4 Nov, arriving in Philadelphia International.Price includes taxes and charges.From $165, select.
      San Juan.$165 per passenger.Departing Sun, 1 Nov, returning Thu, 5 Nov.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Sun, 1 Nov, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Frontier Airlines departs from San Juan Luis Munoz Marin on Thu, 5 Nov, arriving in Philadelphia International.Price includes taxes and charges.From $165, select.
      San Juan.$165 per passenger.Departing Sat, 17 Oct, returning Wed, 21 Oct.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Sat, 17 Oct, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Frontier Airlines departs from San Juan Luis Munoz Marin on Wed, 21 Oct, arriving in Philadelphia International.Price includes taxes and charges.From $165, select.
      San Juan.$200 per passenger.Departing Tue, 29 Sep, returning Wed, 7 Oct.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Tue, 29 Sep, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Frontier Airlines departs from San Juan Luis Munoz Marin on Wed, 7 Oct, arriving in Philadelphia International.Price includes taxes and charges.From $200, select.
      San Juan.$203 per passenger.Departing Sat, 31 Oct, returning Fri, 4 Dec.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Sat, 31 Oct, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Frontier Airlines departs from San Juan Luis Munoz Marin on Fri, 4 Dec, arriving in Philadelphia International.Price includes taxes and charges.From $203, select.
      San Juan.$210 per passenger.Departing Wed, 18 Nov, returning Tue, 15 Dec.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Wed, 18 Nov, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Frontier Airlines departs from San Juan Luis Munoz Marin on Tue, 15 Dec, arriving in Philadelphia International.Price includes taxes and charges.From $210, select.
      San Juan.$217 per passenger.Departing Wed, 23 Sep, returning Tue, 29 Sep.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Wed, 23 Sep, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Frontier Airlines departs from San Juan Luis Munoz Marin on Tue, 29 Sep, arriving in Philadelphia International.Price includes taxes and charges.From $217, select.
      San Juan.$217 per passenger.Departing Tue, 8 Dec, returning Tue, 15 Dec.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Tue, 8 Dec, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Frontier Airlines departs from San Juan Luis Munoz Marin on Tue, 15 Dec, arriving in Philadelphia International.Price includes taxes and charges.From $217, select.
      San Juan.$285 per passenger.Departing Fri, 22 Jan, returning Fri, 29 Jan.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Fri, 22 Jan, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Frontier Airlines departs from San Juan Luis Munoz Marin on Fri, 29 Jan, arriving in Philadelphia International.Price includes taxes and charges.From $285, select.
      San Juan.$315 per passenger.Departing Fri, 2 Oct, returning Sat, 16 Jan.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Fri, 2 Oct, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Frontier Airlines departs from San Juan Luis Munoz Marin on Sat, 16 Jan, arriving in Philadelphia International.Price includes taxes and charges.From $315, select.
      San Juan.$328 per passenger.Departing Mon, 28 Sep, returning Sat, 16 Jan.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Philadelphia International on Mon, 28 Sep, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Frontier Airlines departs from San Juan Luis Munoz Marin on Sat, 16 Jan, arriving in Philadelphia International.Price includes taxes and charges.From $328, select.
      San Juan.$338 per passenger.Departing Mon, 22 Feb, returning Thu, 25 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Philadelphia International on Mon, 22 Feb, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Thu, 25 Feb, arriving in Philadelphia International.Price includes taxes and charges.From $338, select.
      San Juan.$348 per passenger.Departing Tue, 26 Jan, returning Tue, 2 Feb.Return flight with United.Outbound indirect flight with United, departs from Philadelphia International on Tue, 26 Jan, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with United, departs from San Juan Luis Munoz Marin on Tue, 2 Feb, arriving in Philadelphia International.Price includes taxes and charges.From $348, select.
      San Juan.$348 per passenger.Departing Wed, 14 Apr, returning Wed, 21 Apr.Return flight with United.Outbound indirect flight with United, departs from Philadelphia International on Wed, 14 Apr, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with United, departs from San Juan Luis Munoz Marin on Wed, 21 Apr, arriving in Philadelphia International.Price includes taxes and charges.From $348, select.
      San Juan.$348 per passenger.Departing Sat, 24 Apr, returning Sat, 1 May.Return flight with United.Outbound indirect flight with United, departs from Philadelphia International on Sat, 24 Apr, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with United, departs from San Juan Luis Munoz Marin on Sat, 1 May, arriving in Philadelphia International.Price includes taxes and charges.From $348, select.
      San Juan.$348 per passenger.Departing Tue, 1 Jun, returning Tue, 8 Jun.Return flight with United.Outbound indirect flight with United, departs from Philadelphia International on Tue, 1 Jun, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with United, departs from San Juan Luis Munoz Marin on Tue, 8 Jun, arriving in Philadelphia International.Price includes taxes and charges.From $348, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Philadelphia to San Juan Luis Munoz Marin found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from Philadelphia to San Juan Luis Munoz Marin

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia to San Juan Luis Munoz Marin flights are currently cheapest in October.
      Sep
      from $217
      Oct
      from $165
      Nov
      from $165
      Dec
      from $217
      Jan
      from $285
      Feb
      from $338
      Mar
      from $368
      Apr
      from $348
      May
      from $348
      Jun
      from $348
      Jul
      from $581
      Aug
      from $1,342

      Direct flights from Philadelphia to San Juan Luis Munoz Marin

      Alaska Airlines
      American Airlines
      British Airways
      Frontier Airlines
      jetBlue
      Qatar Airways

      Philadelphia to San Juan Luis Munoz Marin: Alternative routes

      Compare routes from Philadelphia to San Juan below. You may find an airport to fly into that's cheaper, faster, or easier than San Juan Luis Munoz Marin.

      San Juan Isla Grande

      1km from central San Juan
      Closest
      Search flights

      San Juan Luis Munoz Marin

      11km from central San Juan
      Cheapest
      from $165
      Search flights

      Roosevelt Roads

      55km from central San Juan
      Search flights

      Ponce

      70km from central San Juan
      from $523
      Search flights

      Vieques

      82km from central San Juan
      Search flights

      Culebra

      85km from central San Juan
      Search flights

      Philadelphia to San Juan: Flight information

      The things to know before you go.
      Cheapest flight found$165
      Cheapest month to flyOctober
      Average flight time4 hrs, 1 min
      Most popular airlineAmerican Airlines
      Average flights per week83

      Finding cheap flights from Philadelphia to San Juan Luis Munoz Marin: Frequently asked questions

      The best price we found for a return flight from Philadelphia to San Juan Luis Munoz Marin is $165. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      4 hours and 1 minute is the average flight time from Philadelphia to San Juan Luis Munoz Marin.
      American Airlines, Alaska Airlines and Qatar Airways fly direct from Philadelphia to San Juan Luis Munoz Marin.
      As of September 2026, there are 83 flights per week flying from Philadelphia to San Juan Luis Munoz Marin.
      The cheapest month to fly from Philadelphia to San Juan Luis Munoz Marin is usually October.
      After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia to San Juan Luis Munoz Marin Airport on Saturday, 17 October 2026.
      Yes – the average flight time is 4 hours and 1 minute.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Juan Luis Munoz Marin but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Juan is around 40 days in advance, so don’t leave your flight to the last minute.

      The cheapest airline that flies to San Juan Luis Munoz Marin is Frontier Airlines .

      Travelling from Philadelphia to Luis Munoz Marin International Airport (SJU): What you need to know

      • Planning your getaway starts with figuring out where you'll fly out of in Philadelphia. Philadelphia International Airport (PHL) is the city's main base, so check out your options for booking a flight from Philadelphia to Luis Munoz Marin International Airport (SJU) jetting off from here.

      • Expect to be in the air for 3 hours 55 minutes. On average, that's the duration of a direct Philadelphia to Luis Munoz Marin International Airport flight.

      • San Juan is one hour ahead of Philadelphia. Luis Munoz Marin International Airport is located in San Juan, which follows the UTC-4 timezone.

      • Philadelphia International Airport (PHL) to Luis Munoz Marin International Airport (SJU) is the busiest route. You can select from 26 direct services every week between PHL and SJU.

      • Your flight from Philadelphia to SJU won't wait if you're running late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

      • With more people on the move during busy months like July, be at your terminal even earlier. Two hours for domestic flights and up to four for international journeys will allow for extra wait times. Remember things also get busy during major holidays like Christmas and local events or festivals.

      Airports in Philadelphia

      Philadelphia International Airport (PHL)

      • Philadelphia International Airport (PHL) is a convenient option for travelling directly to your destination. Nonstop flights from Philadelphia to Luis Munoz Marin International Airport (SJU) leave from this terminal.

      • Popular carriers that have direct flights from Philadelphia to Luis Munoz Marin International Airport departing PHL include:

      • The airline with the highest booking numbers between PHL and SJU is American Airlines.

      • The carrier with the best on-time arrival rate on this route is Spirit Airlines.

      • Stopovers are the ideal opportunity to break up your trip and perhaps even explore a different city. When searching for cheap flights from Philadelphia to SJU leaving from Philadelphia International Airport (PHL), deselect the 'Direct flights only' box to get ideas for where to visit along the way. Popular options include:

        • Newark Liberty International Airport (EWR)

        • Raleigh-Durham International Airport (RDU)

        • Cyril E. King International Airport (STT)

      • The journey from central Philadelphia to PHL takes about 30 minutes by public transport. If you drive, ride-share or take a taxi, you'll cover the 18 kilometres in 20 minutes or so, depending on traffic conditions.

      • Want an easy start to your journey? Stay near Philadelphia International Airport. Whether you're catching an early flight from Philadelphia to Luis Munoz Marin International Airport or just don't like being rushed, these hotels are the answer:

      • When it comes to Philadelphia International Airport's on-time performance, 77% of flights meet their scheduled arrival time.

      • PHL's address is 8500 Essington Ave.

      Trenton-Mercer Airport (TTN)

      • You can reach TTN from the centre of Philadelphia in approximately 40 minutes by car (depending on traffic conditions). The ride on public transport will take roughly 1 hour 35 minutes to cover the 48 kilometres or so.

      • Get your holiday started early with an extra night away from home. Before your Philadelphia to SJU flight, kick back in one of these hotels near Trenton-Mercer Airport:

      • Trenton-Mercer Airport has an on-time performance of 76%. This figure reflects how often flights that depart from this airport arrive at their destination on time.

      • You'll find TTN at Scotch Road, Terminal Building.

      About Luis Munoz Marin International Airport (SJU)

      • Have a late flight from Philadelphia to Luis Munoz Marin International Airport? Don't let it hijack your sleep schedule. Stay at one of these hotels near SJU and fast-forward to bedtime:

      • Booking your ride around two weeks ahead of your Philadelphia to Luis Munoz Marin International Airport flight can help you get a cheaper deal.

      Getting from Luis Munoz Marin International Airport (SJU) to central San Juan

      • From Luis Munoz Marin International Airport, central San Juan is around 11 kilometres away. It takes about 20 minutes to reach the city centre by car.

      • If you're travelling on public transport, expect a journey of around 1 hour.

      How to find the cheapest flights from Philadelphia to Luis Munoz Marin International Airport (SJU)

      • The lowest price we've found for a one-way ticket from Philadelphia to Luis Munoz Marin International Airport is $83. For a return flight on this route, the best price is $165. Depending on when you book and the availability, these fares may change.

      • Don't wait until the last moment. You're more likely to walk away with cheap flights from Philadelphia to SJU if you book early. Airlines often offer some fantastic early bird deals.

      • If you can be flexible with your travel dates, try using the 'Whole month' tool. It'll show you the cheapest price across every month when searching for your Philadelphia to Luis Munoz Marin International Airport ticket.

      • There's no need to check back in every day to find out if prices have dropped when you set up a Price Alert. We'll notify you when a better deal is available on plane tickets from Philadelphia to SJU.

      • Save money on your flight from Philadelphia to Luis Munoz Marin International Airport by using filters. Select your ideal duration, departure time and airlines, then sort the results by 'Cheapest' for the best deals.

      The best time to fly from Philadelphia to Luis Munoz Marin International Airport (SJU)

      • December is the quietest month for flights from Philadelphia to Luis Munoz Marin International Airport (SJU), while March is the most popular. Find the best time to visit San Juan based on whether you like a laid-back vibe or a more bustling atmosphere.

      • When booking your Philadelphia to SJU plane ticket, consider what kind of weather works for you. August is the warmest month in San Juan, with temperatures ranging from 24ºC (75ºF) to 32ºC (90ºF).

      • February has temperatures of between 21ºC (70ºF) and 28ºC (82ºF). Search for cheap tickets from Philadelphia to Luis Munoz Marin International Airport around that time if you'd rather travel in cooler conditions.

      More about San Juan

      • Once you've booked your flight from Philadelphia to Luis Munoz Marin International Airport, find a hotel that keeps you close to what you want to see. Make one of these accommodation options your base for exploring San Juan:

      • There are so many things to do and see in this city, it can be difficult to know where to begin. Balneario El Escambron, Esperanza Beach and Escambron Green are popular attractions which should feature on any good San Juan itinerary.

      Explore more of Puerto Rico

      • You've visited San Juan, now it's time to explore other corners of Puerto Rico. Journey around 121 kilometres west to Aguadilla to check off its must-visit sights. From Silla Aguadilla to Bridges Surf Beach and Playa Rompe Olas, there's plenty to keep you on the go.

      • Around 105 kilometres west of San Juan, Isabela is another favourite stop in Puerto Rico. No visit is complete without checking out Playa montones, Shore Island Beach and Guajataca Forest Reserve.

      Plan smart, explore more

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      Plan the rest of your trip from Philadelphia to San Juan

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.