ABE - SJU

$224 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 5/10. 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

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 Flight Deals 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.

Recent round-trip flight deals from Allentown to San Juan

KAYAK's recommended round-trip deals from the most popular airlines that fly from Allentown to San Juan.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
12:00 pm - 9:43 amABE-SJU
45h 43m3 stops
 Logo
1:59 am - 2:09 pmSJU-ABE
12h 10m1 stop
Wed, May 28 - Tue, Jun 3
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12:00 pm - 9:43 amABE-SJU
45h 43m3 stops
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10:38 am - 8:51 amSJU-ABE
22h 13m2 stops
Wed, May 28 - Wed, Jun 4
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12:00 pm - 7:07 pmABE-SJU
31h 07m2 stops
 Logo
10:38 am - 8:51 amSJU-ABE
22h 13m2 stops
Wed, May 28 - Wed, Jun 4
Delta Logo
6:30 am - 4:08 pmABE-SJU
9h 38m1 stop
Delta Logo
7:30 am - 5:14 pmSJU-ABE
9h 44m1 stop
$385Delta
Find Deal
Wed, Oct 1 - Wed, Oct 8
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12:00 pm - 9:43 amABE-SJU
45h 43m3 stops
 Logo
1:59 am - 10:52 amSJU-ABE
32h 53m2 stops
Wed, May 28 - Tue, Jun 3
American Airlines Logo
5:25 am - 8:33 pmABE-SJU
15h 08m1 stop
American Airlines Logo
7:15 am - 12:40 amSJU-ABE
17h 25m1 stop
$435American Airlines
Find Deal
Wed, May 28 - Wed, Jun 4
American Airlines Logo
5:25 am - 8:33 pmABE-SJU
15h 08m1 stop
American Airlines Logo
8:00 am - 12:20 amSJU-ABE
16h 20m1 stop
$445American Airlines
Find Deal
Sat, May 31 - Thu, Jun 12
Delta Logo
1:12 pm - 7:48 pmABE-SJU
6h 36m1 stop
Delta Logo
2:40 pm - 10:29 pmSJU-ABE
7h 49m1 stop
$535Delta
Find Deal
Tue, Jun 3 - Thu, Jun 19
United Airlines Logo
6:37 am - 2:44 pmABE-SJU
8h 07m1 stop
United Airlines Logo
3:56 pm - 4:53 pmSJU-ABE
24h 57m1 stop
$639United Airlines
Find Deal
Sun, Aug 31 - Wed, Sep 3
United Airlines Logo
5:35 pm - 5:30 amABE-SJU
11h 55m2 stops
United Airlines Logo
7:45 am - 4:59 pmSJU-ABE
9h 14m1 stop
$646United Airlines
Find Deal
Wed, May 28 - Wed, Jun 4
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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.

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 June, where the average cost of round-trip tickets is $741 and $538 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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonDecember
High seasonAugust
Cheapest flight$224
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 61% 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 $224 for a one-way ticket and $376 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?

    SkyTeam, oneworld, and Star Alliance 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 $425 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 $520 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.

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 7934 reviews
7.9Comfort
8.2Boarding
7.9Entertainment
7.3Food
8.5Crew
Airline reviews

Our bag was lost so that made unnecessary chaos On our trip

6.0 GoodBarbara, Apr 2025JFK - FCO
Read more Delta reviews

Our bag was lost so that made unnecessary chaos On our trip

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Multiple delays and not straight answer from the United team

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

Electric plugs didn't work. Entertainment system wasn't working

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

Everyone was nice. It was on time and the food was. Airplane food, but not horrible

Uncomfortable seats and flight attendant was rude as she insisted on waking up my husband to ask him if he wanted a drink. When he said that he was sleeping, she replied “without an attitude “. He was seated at 8c

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

late again! but its my only option to not take 9 hours to get to Memphis

Almost everything was outstanding. First, we boarded on time and the flight crew did a great job getting everyone seated. Then the pilots took their time and care to make sure the plane was full de-iced three times as there was a bad ice storm a few hours earlier. The plane ride was smooth and comfortable and even the economy seats had decent room and comfort. Flight Attendant Lisa went above and beyond to make sure I was comfortable - she is outstanding. The only thing wrong with the flight, and it is something which needs to be addressed, is that the gate to gate time was over 6.5 hours and not one meal was served. The only thing offered to eat were two small cookies for a transcontinental flight - unacceptable. Charge me more but give me a meal for a long flight. Thankfully Lisa found something for me.

Very poor. Our special services attendant gave us incorrect information. I also was mishandled at landing. There was no wheelchair waiting. I fell deboarding the plane. Appalling!

I had a very unpleasant encounter with one man from customer service: he was extremely rude and miserable. And his condition was reflected on his decision to send me to the worst airport hotel and get an awful flight connection. My hotel shuttle had never arrived and I had to book another hotel. People served by other representatives got a much better treatment and deal.

The flight left a bit late, but arrived close to time expected…With the flight being close to full the crew did well serving drinks to all in a very timely fashion. The flight was a pleasure…

They didn't have any gluten-free snacks, oddly, which I require...or any flavored soda water or decaf tea options, which seems to be standard.

The reps working at the airport counter were dumber than a second coat of paint.

My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

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