231 € Cheap Flights from Allentown to San Juan

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Flight deals from Allentown to San Juan

Looking for a cheap last-minute deal or the best return flight from Allentown to San Juan? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Allentown to San Juan

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Allentown to San Juan flights are currently cheapest in September.

Allentown to San Juan: Flight information

The things to know before you go.
Cheapest flight found231 €
Cheapest month to flySeptember

Finding cheap flights from Allentown to San Juan: Frequently asked questions

There are 6 airports in San Juan: San Juan Isla Grande, San Juan Luis Munoz Marin, Roosevelt Roads, Ponce, Vieques, and Culebra.
The best price we found for a return flight from Allentown to San Juan is 231 €. 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.
Currently, there are no airlines that fly direct from Allentown to San Juan. But we found flights with one or more stops from 231 €.
As of February 2026, there are no flights flying from Allentown to San Juan.
The cheapest month to fly from Allentown to San Juan is usually September.
If you're flying from Allentown Airport, the cheapest airport near San Juan is San Juan Luis Munoz Marin – which is 11.3 km away from the centre of San Juan. We've found flights into this airport from 231 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Allentown Airport to San Juan on Saturday, 12 September 2026.
No airlines currently offer direct flights between Allentown Airport and San Juan. Most routes have one or more stops.
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 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.
In February, the average temperature is usually around 25°C. August is typically the warmest month in San Juan, when it usually averages around 29°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging 23°C. The rainiest month is September.
Currently, Delta offers the cheapest flight tickets to San Juan.

Flying from Lehigh Valley International Airport (ABE) to San Juan: what you need to know

  • Allentown (the location of Lehigh Valley International Airport) and San Juan share the same timezone — UTC-4.

  • For a relaxed start to your ABE to San Juan flight, leave plenty of time to check in and drop off your luggage. Arriving two hours before international departures and one hour before domestic flights is the standard rule.

  • Heading off during a peak period like a bank holiday? Expect longer queues at security and check-in. Give yourself extra leeway and arrive up to four hours before international flights and two hours before domestic departures.

  • Stopovers are the ideal opportunity to break up your trip and possibly even explore a different city. When searching for plane tickets from ABE to San Juan, uncheck the 'Direct flights only' box to see where you can visit along the way. Top options include:

    • Hartsfield-Jackson Atlanta International Airport (ATL)

    • Orlando International Airport (MCO)

    • Fort Lauderdale-Hollywood International Airport (FLL)

  • The journey from central Allentown to ABE takes around 30 minutes by public transport. If you drive, ride-share or get a cab, you'll cover the 6 kilometres in 10 minutes or so, depending on traffic.

  • Have an early flight from Lehigh Valley International Airport to San Juan? Avoid the stress of rushing to the airport (and sneak in some extra precious sleep) by choosing one of these stays close to ABE:

  • 78.8% of flights that leave from Lehigh Valley International Airport land at their destination on schedule.

  • ABE's address is 3311 Airport Road.

How to find the cheapest flights from Lehigh Valley International Airport (ABE) to San Juan

  • 141 € is currently the lowest price for a one-way Lehigh Valley International Airport to San Juan flight. Return plane tickets start from 231 €. These fares can change based on demand.

  • Don't leave everything to the last minute. You're more likely to land cheap flights from ABE to San Juan if you book ahead. Airlines often offer some great early bird rates.

  • The 'Whole month' tool will show you the cheapest tickets from Lehigh Valley International Airport to San Juan throughout the month. It's a great way to find a bargain if your trip dates are flexible.

  • Picking up a cheap flight from ABE to San Juan is easy with Price Alerts. Simply set up one of these automatic notifications and we'll let you know as soon as a new discount appears.

  • Choose your preferred departure and arrival times, airlines and number of stops with our filters. Then, sort the results for your flight from Lehigh Valley International Airport to San Juan by 'Best,' 'Fastest' or 'Cheapest.'

Airports in San Juan

Luis Munoz Marin International Airport (SJU)

  • Luis Munoz Marin International Airport (SJU) is around 8 kilometres from central San Juan. If you're catching a cab or a ride-share, the drive takes roughly 10 minutes.

  • It typically takes 55 minutes if you're travelling on public transport.

  • If you're coming in on a late flight from Lehigh Valley International Airport to San Juan, nothing beats the convenience of staying near the terminal. Collect your bags from the carousel and then be showered and resting soon after at one of these hotels near SJU:

  • Pick up a Luis Munoz Marin International Airport rental car and discover San Juan and beyond with your own set of wheels. Sixt, Ace Rent a Car and U-Save are top outlets to choose from here.

  • Booking your vehicle from Luis Munoz Marin International Airport around two weeks before your flight from ABE to San Juan can help you secure the lowest rate.

Fernando Luis Ribas Dominicci Airport (SIG)

  • Fernando Luis Ribas Dominicci Airport (SIG) is about 8 kilometres from the centre of San Juan. After your flight from Lehigh Valley International Airport to San Juan, it'll take you around 15 minutes to reach the heart of the city in a ride-share or cab.

  • If you travel by public transport, the ride to the centre will take you 1 hour or so.

  • Hang up the 'Do not disturb' sign and rest at a hotel near SIG. Here are a few options where you can tuck yourself in after your ABE to San Juan flight:

Best time to go to San Juan

  • Carefully consider your dates before booking your flight from Lehigh Valley International Airport to San Juan. The city comes alive in high season, but hotel rates are generally higher and attractions can be busy. Plan your trip to San Juan in the low season if you prefer a more relaxed vibe.

  • Before booking a Lehigh Valley International Airport to San Juan plane ticket, think about the kind of weather you prefer. September is the warmest month in San Juan, with temperatures ranging from 23ºC (73ºF) to 33ºC (91ºF).

  • If you'd rather travel in cooler conditions, search for a cheap ticket from ABE to San Juan in February when temperatures average between 20ºC (68ºF) and 28ºC (82ºF).

More about San Juan

  • When it comes to searching for somewhere to lay your head, you'll find the top stays in San Juan right here. Explore these options after you've booked your flight from Lehigh Valley International Airport to San Juan:

  • There are so many things to do and see in this city it can be tricky to work out where to start. La Garita del morro de san juan bahia, Castillo San Felipe del Morro and Fortaleza Street are highlights which should be on every San Juan itinerary.

Explore more of Puerto Rico

  • Aguadilla is just one of the many places in Puerto Rico waiting to be discovered once you've taken in the sights of San Juan. Around 113 kilometres away to the west, top sights here include El Parterre, Aguadilla Ice Skating Arena and Bandera de los Reyes Magos.

  • Isabela is another favourite destination in Puerto Rico and is around 105 kilometres west of San Juan. No trip is complete without dropping by Amarillo Mango, Urb. Llanos Piscina Park and Noches de Artesania.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.