ABE - SJU

$176 Find Cheap Flights from Allentown 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 Allentown to San Juan departing on 11/15. 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 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 Allentown 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 Allentown to San Juan, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Allentown to San Juan (ABE-SJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Allentown 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 round-trip flight deals from Allentown to San Juan

Wed, Oct 29 - Tue, Nov 4
American Airlines Logo
6:00 am - 3:55 pmABE-SJU
9h 55m1 stop
American Airlines Logo
4:50 pm - 12:21 amSJU-ABE
8h 31m1 stop
$278American Airlines
Find Deal
Sat, Oct 25 - Sat, Nov 1
Delta Logo
1:00 pm - 10:21 pmABE-SJU
9h 21m1 stop
Delta Logo
7:30 am - 5:14 pmSJU-ABE
9h 44m1 stop
$285Delta
Find Deal
Tue, Oct 28 - Wed, Nov 5
Delta Logo
6:30 am - 4:18 pmABE-SJU
9h 48m1 stop
Delta Logo
3:28 pm - 10:52 pmSJU-ABE
8h 24m1 stop
$315Delta
Find Deal
Tue, Oct 28 - Fri, Oct 31
Delta Logo
6:30 am - 4:18 pmABE-SJU
9h 48m1 stop
Delta Logo
2:28 pm - 9:27 pmSJU-ABE
6h 59m1 stop
$323Delta
Find Deal
Sun, Oct 26 - Fri, Oct 31
American Airlines Logo
1:56 pm - 11:50 pmABE-SJU
9h 54m1 stop
American Airlines Logo
3:50 pm - 10:37 pmSJU-ABE
6h 47m1 stop
$327American Airlines
Find Deal
Thu, Oct 23 - Mon, Oct 27
American Airlines Logo
1:56 pm - 11:50 pmABE-SJU
9h 54m1 stop
American Airlines Logo
7:10 am - 5:23 pmSJU-ABE
10h 13m1 stop
$343American Airlines
Find Deal
Tue, Oct 28 - Thu, Nov 6
Delta Logo
6:30 am - 4:18 pmABE-SJU
9h 48m1 stop
Delta Logo
1:50 pm - 10:52 pmSJU-ABE
10h 02m1 stop
$345Delta
Find Deal
Mon, Oct 27 - Sat, Nov 1
Delta Logo
6:30 am - 1:23 pmABE-SJU
6h 53m1 stop
Delta Logo
7:30 am - 5:14 pmSJU-ABE
9h 44m1 stop
$360Delta
Find Deal
Sun, Aug 10 - Sun, Aug 17
 Logo
8:17 pm - 9:09 pmABE-SJU
24h 52m2 stops
 Logo
2:11 am - 10:53 pmSJU-ABE
20h 42m3 stops
Fri, Oct 24 - Thu, Oct 30
Delta Logo
6:30 am - 4:18 pmABE-SJU
9h 48m1 stop
Delta Logo
2:28 pm - 10:52 pmSJU-ABE
8h 24m1 stop
$390Delta
Find Deal
Booking Insights

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

Get data-powered insights and trends into flights from Allentown to San Juan to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Allentown to San Juan Luis Munoz Marin Intl Airport?

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

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

When flying from Allentown to San Juan, you should consider leaving on a Monday and avoid Sundays if you are looking for the best rates. For your return to Allentown, you’ll find the best rates on Sundays and the most expensive ones on Thursdays.

What is the cheapest month to fly from Allentown 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 Allentown 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 Allentown to San Juan Luis Munoz Marin Intl Airport is January, where tickets cost $291 (return) on average. On the other hand, the most expensive months are August and May, where the average cost of round-trip tickets is $639 and $516 respectively.

How far in advance should I book a flight from Allentown 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 Allentown 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 Allentown 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 15 weeks before departure.

Good to know

Low seasonJune
High seasonJuly
Cheapest flight$176
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 4% increase in price.
Flight from Allentown to San Juan

When to book flights from Allentown to San Juan

Are your dates flexible? Find out the best times to travel from Allentown to San Juan 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 Allentown to San Juan flights

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

    In the last 3 days, the lowest price for a flight from Allentown to San Juan Luis Munoz Marin Intl Airport was $176 for a one-way ticket and $278 for a round-trip.

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

    Yes

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

    We unfortunately don’t have that data for this specific route.

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

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Allentown and San Juan, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Allentown to San Juan, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Allentown to San Juan are Delta and United Airlines. With an average price for the route of $451 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $462 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Allentown 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 Allentown to San Juan.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Allentown 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 Allentown to San Juan?

    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 San Juan with an airline and back to Allentown with another airline. Booking your flights between Allentown and SJU 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 Allentown 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 Allentown up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Allentown to San Juan

 
See real verified KAYAK customer reviews for airlines flying from Allentown 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 Allentown 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.
8.0
DeltaOverall score based on 7959 reviews
8.2Boarding
7.9Entertainment
7.3Food
7.9Comfort
8.5Crew
Airline reviews

There was no problems, just a little uncomfortable with seats that do not lay back a little

8.0 ExcellentWillie, Jul 2025PHX - DTW
Read more Delta reviews

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

Food was surprisingly good but the WiFi was not great

this crew didn't care much. bumping carts into seats more times than i care to remember

Very late arrival at PWM. Late jet getting to ATL. Equipment problem with aircraft - could not get enough water onto plane., Another delay getting FAA approval for flight with bottled H2O. Not the crew’s problem.

Everything was fine except the entertainment was not working for half of the flight.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

The food should improve! And The flight should leave on time and not make the traveler wait.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Flight was delayed and after being in the airport for like seven hours, it was canceled.

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

Overall very good, only complaint I have is the crew from CLT to SAT could have collected trash sooner.

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

We started with trouble checking in 24 hours early. Then my husband did not get his TSA precheck. Finally flight delayed due to no crew. I know things happen

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

It’s a great flight. Service is good. Staff is awesome.

Again flight was awesome except British Airways lost both gate checked luggage’s. Still missing

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

My flight was canceled I was promised a reginf still not received.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

Both legs of the flight were changed. The day of the flight and length of the trip.

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

My tickets got canceled on me by your site and I didn't have a flight. Then you kept sending me emails on the status of q flight I didn't have tickets for.

The delay was ridiculous because nary a word escaped from the gate attendant regarding our flight status. It was a complete joke.

I missed a flight because of a delay. I had to buy a new ticket through Southwest.

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

Flight was delayed one hour. Notification to the crowd waiting near the gate was terrible…announcements were unclear and very hard to hear and therefore understand. Frontier does NOT send texts to notify, only email. The reader board over the gate itself was NEVER updated to indicate the gate had been changed. It’s like a bunch of children are running things.

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

Information on your arrival and departure airports

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