ABE - SJU

$184 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 8/5. 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 8 - Sun, Oct 12
American Airlines Logo
6:00 am - 3:55 pmABE-SJU
9h 55m1 stop
American Airlines Logo
7:10 am - 10:37 pmSJU-ABE
15h 27m1 stop
$286American Airlines
Find Deal
Wed, Oct 8 - Sat, Oct 18
Delta Logo
6:30 am - 1:23 pmABE-SJU
6h 53m1 stop
Delta Logo
2:28 pm - 10:52 pmSJU-ABE
8h 24m1 stop
$308Delta
Find Deal
Thu, Sep 11 - Mon, Sep 29
 Logo
4:55 pm - 12:44 amABE-SJU
7h 49m1 stop
 Logo
1:59 am - 10:55 amSJU-ABE
8h 56m1 stop
Tue, Oct 7 - Wed, Oct 15
Delta Logo
1:00 pm - 10:21 pmABE-SJU
9h 21m1 stop
Delta Logo
2:28 pm - 10:52 pmSJU-ABE
8h 24m1 stop
$320Delta
Find Deal
Thu, Sep 11 - Mon, Sep 29
 Logo
4:55 pm - 11:34 amABE-SJU
18h 39m2 stops
 Logo
1:59 am - 10:55 amSJU-ABE
8h 56m1 stop
Sat, Oct 11 - Wed, Oct 15
Delta Logo
1:00 pm - 10:21 pmABE-SJU
9h 21m1 stop
Delta Logo
2:28 pm - 10:52 pmSJU-ABE
8h 24m1 stop
$325Delta
Find Deal
Mon, Aug 11 - Wed, Aug 20
 Logo
1:01 pm - 11:32 amABE-SJU
22h 31m2 stops
 Logo
2:11 am - 7:00 pmSJU-ABE
16h 49m2 stops
Wed, Oct 8 - Fri, Oct 17
Delta Logo
6:30 am - 1:23 pmABE-SJU
6h 53m1 stop
Delta Logo
12:57 pm - 10:52 pmSJU-ABE
9h 55m1 stop
$341Delta
Find Deal
Fri, Nov 7 - Sat, Nov 8
American Airlines Logo
5:42 pm - 11:45 amABE-SJU
17h 03m1 stop
American Airlines Logo
4:50 pm - 12:21 amSJU-ABE
8h 31m1 stop
$346American Airlines
Find Deal
Tue, Oct 7 - Sun, Oct 12
American Airlines Logo
2:43 pm - 10:11 pmABE-SJU
7h 28m1 stop
American Airlines Logo
7:10 am - 10:37 pmSJU-ABE
15h 27m1 stop
$348American Airlines
Find Deal
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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.

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 June, where the average cost of round-trip tickets is $748 and $547 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 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonNovember
High seasonAugust
Cheapest flight$184
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly with an average 60% 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 $184 for a one-way ticket and $286 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, Star Alliance, and oneworld 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 7952 reviews
8.2Boarding
8.5Crew
7.9Entertainment
7.9Comfort
7.3Food
Airline reviews

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

8.0 ExcellentEileen, Jul 2025BOS - PBI
Read more Delta reviews

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

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

At first, we were on the runway for about an hour, literally. The Captain did explain that the Control Tower just had a change shift (sounds like an unrealistic excuse) and then that we had to change a runway. A regular economy seat is made for 12 yo twiggy. I understand Delta wants to push for an upgrade, but after sitting in a Comfort seat and in First class. I would say First class is not worthy of my money. The landing was delayed because of the weather in NYC, I don't hold that against Delta, of course. The Captain did alert us to that upon takeoff in Vegas and again as we reached NY.

No one fussed at me about my pap machine as a 3rd pice on the plane. Boarding was pleasant and smooth. The boarding agent in Anchorage was a fun character- he could be in a movie. :~) The on-board crew were downright pleasant. No militant attitudes on Delta. Like all planes these days the seats are too narrow for standard Americans and at 5’2” there is barely enough leg room. I don’t know how tall people fold themselves into the seats. But that’s nothing specific to Delta

Great. Very smooth. Plenty of information. However, wish they would give out a menu in advance of making a dinner choice like other international airlines. The flight attendant says chicken or pasta and there are details about ingredients or spices requiring the passenger to ask which requires the flight attendant to answer many times. So easy to solve this problem. P

I'm a tall guy and even the seats with more leg room were not as comfortable as I had hoped.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

My flight was extremely cold. I had a jacket and a cover was left in each seat. The cover was extremely thin and I have a disability, fibromyalgia and arthrithis and AC air is the worst. I closed my vent and my husbands vent and it still was frigid. I asked the attendant if I could get another cover and she quickly almost dismissively and totally unconcerned stating, (I quote) (one per chair) and walked off so quickly that I didn't get a chance to explain to her that I literally have adisability. I didnt want to make a seen so I set on that flight for over 5 hours in pain, joints locking up and extremely uncomfortable. When my fibromyalgia flares up my joints not only ache but they will lock up also and it takes me days to get back to my regular self even though I take medication for it. I felt like it would not have hurt anyone at all for her to just give me an extra cover because I'm sure they have all types of medical issues in people that fly every day.

After all the weather issues at least they got me to my destination the next day

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

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

A little bit more leg room in premium economy. I am 6’4”.

Overall it was good. I missed my connection but I was put on another flight.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

The woman gate agent in Phoenix was none too sympathetic about my check-in process as I am relatively new with using apps. I almost did not get on because she said I did not check-in. I thought I had via Kayak where I purchased a very expensive ticket. Lesson learned but to be told I may not get on as a matter of factly was difficult to hear.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

We love united ! We would like to acknowledge Aimee in the lounge near gate 130

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.

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.

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.

I’m not gonna fly Frontier Airlines because booking is not an option. No water or food is for high price, not equipped for health emergency incompetent crew for emergency services. Cheap airline shows it is cheaper in all service categories. Boarding is the best of all airlines!

We’ve all seen the YouTube vids of out of control passengers. But this was an instance of a highly aggressive, bully flight attendant. Yelling in the face of a vet with PTSD who was texting their family. And no , we had not yet been instructed to put our phones in airplane mode. My suggestion is that you should pay whatever difference there is in order to avoid Frontier airlines. Additionally, after 3hrs trying to get customer service frontier offered a $25 voucher. I declined. This experience was so traumatic. To be verbally assaulted and abused by a flight attendant that has the power to say “boo” and I miss my flight ( which was to a family member’s funeral ). Frontier is unsafe and I cannot impress enough how much I discourage anyone ( esp those with any kind of disability like PTSD ) flying on Frontier.

My flight was delayed by two hours which made it so that I would miss my layover flight. I stood in line for customer service for over an hour and when I reached the agent she told me to scan a QR code and it'll give me options. I wasn't offered any help, guidance or compensation, only told that I have options but that I had to figure it all out myself. I was refunded part of the trip and had to buy an expensive same day ticket from another airline in order to get home. I will never fly Frontier again.

We were delayed three times ,and that destroyed my plans, and reservations

Very bad! No good service delayed my second connection flight

The confirmation # CK8GNW and my name was not recognized/in Frontier system. I was able to check in on Frintier app so i went to the Frontier ticket agent, at time they told me that my name/ confirmation did not show up as a purchased ticket. I had to purchase a new ticket that cost $289.00 one way.

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