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San Juan

$200+ Cheap flights from Allentown (ABE) to San Juan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SJU
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Allentown-Bethlehem to San Juan are usually found in January or November, booked 63 days in advance, depart on a Monday or Saturday and return on a Friday

Cheap flight deals from Allentown to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Allentown (ABE) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 15, 2025.

Round-trip from

$281
(American Airlines)

One-way from

$200
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$477
From Allentown-Bethlehem to San Juan
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One-way flight from Allentown-Bethlehem to San Juan
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Highest demand for flights based on searches. 2% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Allentown to San Juan

Cheapest flights from Allentown to San Juan
Explore the most affordable flight options available from Allentown to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This American Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:00 amABE - SJU
1 stop9h 55mAmerican Airlines
Sat 11/17:10 amSJU - ABE
1 stop10h 13mAmerican Airlines
Deal found 9/13$295
This American Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/235:53 pmABE - SJU
1 stop6h 01mAmerican Airlines
Fri 10/317:45 amSJU - ABE
1 stop11h 55mAmerican Airlines
Deal found 9/13$345
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/233:01 pmABE - SJU
1 stop24h 15mMultiple Airlines
Fri 10/315:51 pmSJU - ABE
2 stops43h 03mMultiple Airlines
Deal found 9/13$385
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/284:55 pmABE - SJU
2 stops33h 03mMultiple Airlines
Thu 10/26:44 amSJU - ABE
1 stop15h 31mMultiple Airlines
Deal found 9/13$387
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:43 pmABE - SJU
1 stop7h 27mAmerican Airlines
Mon 11/33:05 pmSJU - ABE
1 stop8h 47mAmerican Airlines
Deal found 9/14$425
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:00 amABE - SJU
1 stop10h 33mDelta
Fri 11/71:46 pmSJU - ABE
1 stop9h 29mDelta
Deal found 9/13$470
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:30 amABE - SJU
1 stop8h 35mAmerican Airlines
Wed 11/264:44 pmSJU - ABE
1 stop7h 09mAmerican Airlines
Deal found 9/14$483

Cheapflights Fare Finder

 
Customize your flight search to find flights from Allentown to San Juan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Allentown to San Juan that are best for you.

Fly from

Allentown

Fly to

San Juan

Route

Depart

Return

Price

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Sun 9/28

1:00 pm-11:23 pm

2 stops10h 23m

San Juan Luis Munoz Marin Intl

Wed 10/1

3:39 am-10:15 pm

1 stop18h 36m

$415

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Sun 11/2

12:44 pm-3:12 pm

3 stops25h 28m

San Juan Luis Munoz Marin Intl

Sun 11/9

8:26 pm-11:31 pm

3 stops28h 05m

$501

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Tue 9/30

6:30 am-2:44 pm

1 stop8h 14m

San Juan Luis Munoz Marin Intl

Fri 10/3

1:05 am-4:53 pm

2 stops15h 48m

$507

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Mon 11/3

12:52 pm-2:44 am

2 stops12h 52m

San Juan Luis Munoz Marin Intl

Sun 11/9

8:26 pm-11:31 pm

3 stops28h 05m

$513

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Thu 10/30

12:46 pm-9:59 pm

1 stop9h 13m

San Juan Luis Munoz Marin Intl

Tue 11/4

7:15 am-5:20 pm

1 stop11h 05m

$545

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Tue 3/3

10:33 am-12:36 am

2 stops13h 03m

San Juan Luis Munoz Marin Intl

Fri 3/6

8:35 am-9:47 pm

1 stop14h 12m

$615

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Wed 3/4

10:33 am-9:00 pm

1 stop9h 27m

San Juan Luis Munoz Marin Intl

Tue 3/10

4:50 pm-1:55 pm

2 stops21h 05m

$620

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Wed 1/7

4:05 pm-9:52 am

1 stop16h 47m

$200

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Mon 11/3

7:31 am-8:48 pm

1 stop12h 17m

$213

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Thu 1/8

8:30 am-9:52 am

1 stop24h 22m

$221

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 16 results
1
2

Best time to book a flight from Allentown to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Allentown with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from Allentown to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from Allentown to San Juan. Price data was last updated on September 12, 2025.

The price you pay for your flight from Allentown to San Juan may vary depending on when you book. For the best chance of a lower fare, look to book 63 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Allentown to San Juan?

Currently, September is the cheapest month in which you can book a flight from Allentown to San Juan (average of $254). Flying from Allentown to San Juan in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ABE to SJU?

Find hourly flight availability from Allentown to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

It’s typically best to fly out from Allentown to San Juan at noon. Doing so could potentially save you 43% on the flight price compared to flying in the morning, which is usually more expensive.

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated September 15, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Allentown to San Juan have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,954 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,954 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Frontier
5.8
Fair
3,172 reviews
Delta
8.0
Very good
7,954 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Allentown to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Allentown to San Juan?

    Most people fly from Allentown-Bethlehem (ABE) if they book a flight from Allentown to San Juan. On average, Allentown-Bethlehem has 0 outbound flights to San Juan per day from 4 airlines. Allentown-Bethlehem is conveniently located just 3.9 mi from Allentown’s city center.

  • How long is the flight from Allentown to San Juan?

    A quick flight from Allentown to San Juan can take about 8h 14m. United Airlines provides one of the quickest options available for as low as $507. The distance between Allentown and San Juan is about 1633 mi.

  • What are the cheapest airlines flying from Allentown to San Juan round-trip?

    Frontier, at $78, was found to be the cheapest airline from Allentown to San Juan.Alternate airlines to your destination round-trip include United Airlines and Delta. These flights start at 82% lower than the current average price 3 months from now.

  • Can I find deals for flights from Allentown to San Juan that include hotel bookings?

    Yes. In addition to deals on Allentown to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Allentown to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Allentown to San Juan.

  • Can I find deals for business class flights from Allentown to San Juan?

    Yes. Cheapflights offers flight deals from Allentown to San Juan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Allentown to San Juan?

    Currently, September is the cheapest month in which you can book a flight from Allentown to San Juan (average of $254). Flying from Allentown to San Juan in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Allentown to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Allentown to San Juan

Discover the top 4 airlines that operate flights from Allentown to San Juan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$248FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$191Average$462FlexibilityNo cancel feeOn-time69%
DeltaCheapest$242Average$498FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$249Average$519FlexibilityNo cancel feeOn-time71%

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