Cheap Flights from Allentown to San Juan Luis Munoz Marin

Compare Allentown 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 Allentown Airport to San Juan Luis Munoz Marin Airport

Looking for a cheap last-minute deal or the best return flight from Allentown Airport to San Juan Luis Munoz Marin Airport? If you want to travel next month, return fares start from $957. Find the lowest prices on one-way and return tickets right here.

San Juan.$454 per passenger.Departing Sat, 12 Sep, returning Sat, 19 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Allentown on Sat, 12 Sep, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Sat, 19 Sep, arriving in Allentown.Price includes taxes and charges.From $454, select.

San Juan.$676 per passenger.Departing Tue, 3 Feb, returning Tue, 10 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Allentown on Tue, 3 Feb, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Tue, 10 Feb, arriving in Allentown.Price includes taxes and charges.From $676, select.

San Juan.$812 per passenger.Departing Mon, 23 Mar, returning Sat, 25 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Allentown on Mon, 23 Mar, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Sat, 25 Apr, arriving in Allentown.Price includes taxes and charges.From $812, select.

San Juan.$812 per passenger.Departing Wed, 22 Apr, returning Sat, 25 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Allentown on Wed, 22 Apr, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Sat, 25 Apr, arriving in Allentown.Price includes taxes and charges.From $812, select.

San Juan.$957 per passenger.Departing Sun, 1 Mar, returning Sat, 7 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Allentown on Sun, 1 Mar, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Sat, 7 Mar, arriving in Allentown.Price includes taxes and charges.From $957, select.

San Juan.$1,445 per passenger.Departing Tue, 26 May, returning Fri, 29 May.Return flight with United.Outbound indirect flight with United, departs from Allentown on Tue, 26 May, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with United, departs from San Juan Luis Munoz Marin on Fri, 29 May, arriving in Allentown.Price includes taxes and charges.From $1,445, select.

San Juan.$1,778 per passenger.Departing Sat, 12 Dec, returning Sat, 19 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Allentown on Sat, 12 Dec, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Sat, 19 Dec, arriving in Allentown.Price includes taxes and charges.From $1,778, select.

Find the cheapest month to fly from Allentown 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 Allentown to San Juan Luis Munoz Marin flights are currently cheapest in September.

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Allentown to San Juan Luis Munoz Marin: Alternative routes

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

Allentown to San Juan: Flight information

The things to know before you go.

Cheapest flight found	$454
Cheapest month to fly	September

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

How much are return flights from Allentown to San Juan Luis Munoz Marin?

The best price we found for a return flight from Allentown to San Juan Luis Munoz Marin is $454. 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.

Which airlines fly direct from Allentown to San Juan Luis Munoz Marin?

Currently, there are no airlines that fly direct from Allentown to San Juan Luis Munoz Marin. But we found flights with one or more stops from $454.

How many flights are there a week from Allentown to San Juan Luis Munoz Marin?

As of February 2026, there are no flights flying from Allentown to San Juan Luis Munoz Marin.

When is the cheapest time to fly from Allentown to San Juan Luis Munoz Marin?

The cheapest month to fly from Allentown to San Juan Luis Munoz Marin is usually September.

Which upcoming date is cheapest to fly from Allentown Airport to San Juan Luis Munoz Marin Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Allentown Airport to San Juan Luis Munoz Marin Airport on Saturday, 12 September 2026.

Can I get a direct flight from Allentown Airport to San Juan Luis Munoz Marin Airport?

No airlines currently offer direct flights between Allentown Airport and San Juan Luis Munoz Marin Airport. Most routes have one or more stops.

How can I find the best flight deal to San Juan Luis Munoz Marin?

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.

When is the best time to book flights to San Juan?

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.

Which is the cheapest airline to fly from Allentown Airport to San Juan Luis Munoz Marin with?

Currently, Delta offers the cheapest flight tickets to San Juan Luis Munoz Marin.

Travelling from Lehigh Valley International Airport (ABE) to Luis Munoz Marin International Airport (SJU): what you need to know

Allentown and San Juan share the UTC-4 timezone. This means you won't have to adjust your watch after you land.
Your ABE to SJU flight won't wait if you're late, so show up at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.
You'll likely experience longer lines in popular months such as July. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a wise move.
We make it easy to book a flight with a stopover. To see all your options for tickets from Lehigh Valley International Airport to Luis Munoz Marin International Airport, uncheck 'Direct flights only.' Then, pick a flight with a stop long enough to tour your chosen city. Top stopovers between ABE and SJU include:
- Fort Lauderdale-Hollywood International Airport
- Orlando International Airport
- Hartsfield-Jackson Atlanta International Airport

How to find the cheapest flights from Lehigh Valley International Airport (ABE) to Luis Munoz Marin International Airport (SJU)

The lowest price we've seen for a one-way Lehigh Valley International Airport to Luis Munoz Marin International Airport flight is $279. A return fare right now is $454. Depending on the availability and when you book, these fares could change.
Don't leave things to the last moment. You're more likely to get cheap tickets from ABE to SJU if you book early. Airlines often have some great early bird deals.
If you're willing to be flexible with your trip dates, use the 'Whole month' tool. It'll give you the lowest price in each month when looking for your flight from Lehigh Valley International Airport to Luis Munoz Marin International Airport.
Stay on top of deals for cheap flights from ABE to SJU by setting up a Price Alert. You'll get an email or push notification on the app when a special offer becomes available.
Lock in the right flight for you by using the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Lehigh Valley International Airport to Luis Munoz Marin International Airport, use the 'Sort by' function. You can also filter results by airline, departure and arrival times, and number of stops.

Handy information about Lehigh Valley International Airport (ABE)

You'll find ABE at 3311 Airport Road.
When it comes to Lehigh Valley International Airport's on-time performance, 78.8% of flights stick to their scheduled arrival time.
To get to Lehigh Valley International Airport from central Allentown, it'll take about 10 minutes if you're travelling by car. This depends on traffic, however. It's approximately 8 kilometres from the airport to the city centre.
Expect a trip time of around 30 minutes on public transport.
Booked an early flight from Lehigh Valley International Airport to Luis Munoz Marin International Airport? Avoid the hassle of rushing to the airport (and enjoy a little extra shut-eye) by choosing one of these hotels close to ABE:

Arriving at Luis Munoz Marin International Airport (SJU)

If you're arriving on a late Lehigh Valley International Airport to Luis Munoz Marin International Airport flight, few things top the convenience of being near the terminal. Collect your bags from the carousel and then be showered and relaxing soon after at one of these hotels near SJU:
Explore without limits with a Luis Munoz Marin International Airport rental car. Book your wheels from Sixt, Ace Rent a Car or U-Save and see more of San Juan and beyond.
Lock in the best deal by reserving your ride from Luis Munoz Marin International Airport around two weeks in advance of your trip.

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

From Luis Munoz Marin International Airport, San Juan is approximately 8 kilometres away. It takes around 10 minutes to drive to the centre.
It takes around 55 minutes when travelling by public transport.

When to fly to Luis Munoz Marin International Airport (SJU)

It's time to pick your travel dates for your flight from Lehigh Valley International Airport to Luis Munoz Marin International Airport. July is the busiest month to head to San Juan. If you want a more relaxed vibe, go in May.
Before locking in your flight from Lehigh Valley International Airport to Luis Munoz Marin International Airport, think about the type of weather you enjoy. September is the warmest month in San Juan, with the temperature ranging from 23ºC to 33ºC.
If you'd rather travel in cooler conditions, look for a cheap ticket from ABE to SJU in February. Temperatures average between 20ºC and 28ºC then.

Explore more of Puerto Rico

You've done San Juan, now it's time to discover other parts of Puerto Rico. Journey around 10 kilometres west to Bayamon to tick off its leading attractions. From Plazoleta Ignacio Zorrilla, La Plaza de la Bomba Puertorriqueña to Monumento a los Trovadores and Parque Palm Court, you'll have a packed itinerary ahead.
Carolina is another sought-after destination in Puerto Rico and is around 11 kilometres east of San Juan. No trip is complete without seeing Isla Verde Beach, Parque de Doble A Roberto Clemente Walker and Drone Zone Track.