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San Juan

$161+ 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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SJU
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheapflights Tip: The best prices from Allentown-Bethlehem to San Juan are usually found in November or January, booked 63 days in advance, depart on a Monday or Saturday and return on a Friday

Cheap 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 December 18, 2025.

This Delta deal was found by Cheapflights users on 12/17. 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.
Wed 12/312:00 pmABE - SJU
1 stop8h 20mDelta
Fri 1/96:15 amSJU - ABE
1 stop6h 50mDelta
Deal found 12/17$431
This American Airlines deal was found by Cheapflights users on 12/17. 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 12/236:04 amABE - SJU
1 stop15h 01mAmerican Airlines
Fri 12/262:44 pmSJU - ABE
1 stop9h 45mAmerican Airlines
Deal found 12/17$448
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/182:37 pmABE - SJU
1 stop10h 35mMultiple Airlines
Sat 12/207:35 amSJU - ABE
1 stop12h 13mMultiple Airlines
Deal found 12/16$515
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Sat 12/205:15 pmABE - SJU
1 stop17h 24mAmerican Airlines
Mon 12/2212:30 pmSJU - ABE
1 stop11h 59mAmerican Airlines
Deal found 12/16$543
This Delta deal was found by Cheapflights users on 12/17. 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.
Wed 12/312:00 pmABE - SJU
1 stop8h 20mDelta
Sat 1/106:15 amSJU - ABE
1 stop7h 51mDelta
Deal found 12/17$546
This Kiwi.com deal was found by Cheapflights users on 12/17. 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.
Wed 12/242:58 pmABE - SJU
1 stop10h 14mMultiple Airlines
Tue 12/3011:38 amSJU - ABE
1 stop9h 58mMultiple Airlines
Deal found 12/17$558
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Sat 12/207:38 pmABE - SJU
1 stop25h 27mMultiple Airlines
Mon 12/226:00 amSJU - ABE
1 stop15h 12mMultiple Airlines
Deal found 12/16$565
This Delta deal was found by Cheapflights users on 12/17. 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.
Wed 12/312:00 pmABE - SJU
1 stop8h 20mDelta
Thu 1/82:15 pmSJU - ABE
1 stop9h 35mDelta
Deal found 12/17$567
This Kiwi.com deal was found by Cheapflights users on 12/17. 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.
Tue 12/234:05 pmABE - SJU
2 stops21h 15mMultiple Airlines
Fri 12/269:37 pmSJU - ABE
1 stop24h 16mMultiple Airlines
Deal found 12/17$570
This American Airlines deal was found by Cheapflights users on 12/16. 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 12/185:15 pmABE - SJU
1 stop17h 24mAmerican Airlines
Sun 12/2112:30 pmSJU - ABE
1 stop11h 59mAmerican Airlines
Deal found 12/16$572
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Sat 12/206:04 amABE - SJU
1 stop15h 01mAmerican Airlines
Sun 12/218:25 amSJU - ABE
1 stop9h 08mAmerican Airlines
Deal found 12/17$576
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:30 amABE - SJU
2 stops13h 56mUnited Airlines
Fri 12/198:10 amSJU - ABE
1 stop9h 20mUnited Airlines
Deal found 12/16$589

Find 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 December 18, 2025.

Round-trip from

$314
(Delta)

One-way from

$161
(United Airlines)

Popular in

September

Cheapest in

November

Average price

$451
From Allentown-Bethlehem to San Juan
Search Deals
One-way flight from Allentown-Bethlehem to San Juan
Search Deals
Highest demand for flights based on searches. 35% potential increase in price ($281 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 19% potential price decrease ($87 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 18, 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 1/18

2:00 pm-11:45 pm

1 stop8h 45m

San Juan Luis Munoz Marin Intl

Wed 1/21

7:30 am-5:14 pm

1 stop10h 44m

$346

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Mon 2/23

12:47 pm-11:58 pm

1 stop10h 11m

San Juan Luis Munoz Marin Intl

Thu 3/5

3:55 pm-10:45 pm

1 stop7h 50m

$409

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Sun 1/25

6:15 am-3:40 pm

1 stop8h 25m

San Juan Luis Munoz Marin Intl

Thu 1/29

8:35 am-4:22 pm

1 stop8h 47m

$414

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Thu 2/26

12:47 pm-11:58 pm

1 stop10h 11m

San Juan Luis Munoz Marin Intl

Thu 3/5

6:15 am-12:05 pm

1 stop6h 50m

$431

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Fri 4/24

1:00 pm-10:54 pm

1 stop9h 54m

San Juan Luis Munoz Marin Intl

Fri 5/1

6:15 am-5:17 pm

1 stop11h 02m

$463

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Mon 2/23

12:47 pm-11:58 pm

1 stop10h 11m

San Juan Luis Munoz Marin Intl

Fri 3/6

6:15 am-5:16 pm

1 stop12h 01m

$465

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Tue 1/27

11:30 am-12:36 am

2 stops12h 06m

San Juan Luis Munoz Marin Intl

Fri 1/30

4:52 pm-10:41 am

1 stop18h 49m

$471

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Wed 1/21

6:15 am-9:26 pm

2 stops14h 11m

$161

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Mon 1/19

1:02 pm-8:50 pm

1 stop6h 48m

$175

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Fri 1/2

6:04 am-4:17 pm

1 stop9h 13m

$188

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 13 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 December 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, May is the cheapest month in which you can book a flight from Allentown to San Juan (average of $74). Flying from Allentown to San Juan in August is currently the most expensive (average of $138). 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 December 18, 2025.

It’s typically best to fly out from Allentown to San Juan in the afternoon. Doing so could potentially save you 33% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost to fly round-trip from Allentown to San Juan?

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 December 18, 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
7.9
Good
8,005 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,092 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,055 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.8
Fair
3,081 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 25m. Delta provides one of the quickest options available for as low as $414. The distance between Allentown and San Juan is about 1633 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 Delta and United Airlines. These flights start at 85% 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, May is the cheapest month in which you can book a flight from Allentown to San Juan (average of $74). Flying from Allentown to San Juan in August is currently the most expensive (average of $138). 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

Browse thousands of different options on Cheapflights for your next trip

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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$218FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$191Average$462FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$249Average$479FlexibilityNo cancel feeOn-time71%
DeltaCheapest$275Average$573FlexibilityNo cancel feeOn-timeN/A

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