$151+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SJU
Jun 4 — Jun 111
Round-trip
1 adult, Economy
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Cheapest flights from Allentown to San JuanExplore 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 May 5, 2026.
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 May 5, 2026.
This Delta deal was found by Cheapflights users on 5/1. 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 8/196:30 am
ABE
- SJU
1 stop10h 05m
Delta
Sun 8/231:06 pm
SJU
- ABE
1 stop9h 50m
Delta
Deal found 5/1![Delta logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 5/2. 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.
Fri 6/124:39 pm
ABE
- SJU
2 stops24h 54m
Multiple Airlines
Fri 6/196:00 am
SJU
- ABE
1 stop17h 06m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 8/166:30 am
ABE
- SJU
1 stop18h 11m
Multiple Airlines
Sat 8/225:01 pm
SJU
- ABE
1 stop24h 32m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$420
This American Airlines deal was found by Cheapflights users on 5/1. 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 5/306:22 am
ABE
- SJU
1 stop16h 23m
American Airlines
Wed 6/107:00 am
SJU
- ABE
1 stop17h 21m
American Airlines
Deal found 5/1![American Airlines logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Mon 5/181:41 pm
ABE
- SJU
2 stops20h 37m
Multiple Airlines
Fri 5/226:00 am
SJU
- ABE
1 stop8h 00m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$435
This Kiwi.com deal was found by Cheapflights users on 5/2. 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.
Fri 6/54:39 pm
ABE
- SJU
2 stops24h 35m
Multiple Airlines
Mon 6/156:00 am
SJU
- ABE
1 stop17h 06m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$441
This Kiwi.com deal was found by Cheapflights users on 5/4. 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.
Mon 5/181:41 pm
ABE
- SJU
2 stops34h 18m
Multiple Airlines
Fri 5/296:00 am
SJU
- ABE
1 stop8h 00m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$445
This Delta deal was found by Cheapflights users on 5/3. 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.
Mon 11/236:30 am
ABE
- SJU
1 stop9h 55m
Delta
Thu 12/31:55 pm
SJU
- ABE
1 stop9h 51m
Delta
Deal found 5/3![Delta logo]()
$449
This Delta deal was found by Cheapflights users on 5/3. 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.
Thu 11/266:30 am
ABE
- SJU
1 stop6h 50m
Delta
Thu 12/31:55 pm
SJU
- ABE
1 stop9h 51m
Delta
Deal found 5/3![Delta logo]()
$454
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Mon 8/177:30 am
ABE
- SJU
1 stop8h 35m
Multiple Airlines
Sun 8/239:53 pm
SJU
- ABE
1 stop18h 42m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$458
This American Airlines deal was found by Cheapflights users on 5/4. 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 8/65:10 pm
ABE
- SJU
1 stop7h 05m
American Airlines
Thu 8/133:47 pm
SJU
- ABE
1 stop8h 43m
American Airlines
Deal found 5/4![American Airlines logo]()
$466
Best flights from Allentown to San JuanDiscover carefully curated flight deals from Allentown to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 5, 2026.
Discover carefully curated flight deals from Allentown to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 5, 2026.
This Delta deal was found by Cheapflights users on 4/30. 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.
Fri 7/31:12 pm
ABE
- SJU
1 stop7h 31m
Delta
Tue 7/712:56 pm
SJU
- ABE
1 stop10h 12m
Delta
Deal found 4/30![Delta logo]()
$701
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Sat 5/232:23 pm
ABE
- SJU
2 stops15h 06m
United Airlines
Tue 5/267:20 am
SJU
- ABE
2 stops13h 47m
United Airlines
Deal found 5/4![United Airlines logo]()
$880
This Delta deal was found by Cheapflights users on 5/4. 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.
Mon 5/256:23 am
ABE
- SJU
1 stop7h 15m
Delta
Fri 5/297:30 am
SJU
- ABE
1 stop9h 58m
Delta
Deal found 5/4![Delta logo]()
$796
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Mon 8/315:36 pm
ABE
- SJU
2 stops22h 06m
United Airlines
Thu 9/33:56 pm
SJU
- ABE
1 stop18h 10m
United Airlines
Deal found 5/4![United Airlines logo]()
$916
This United Airlines deal was found by Cheapflights users on 4/30. 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 5/262:23 pm
ABE
- SJU
1 stop30h 11m
United Airlines
Fri 5/291:00 am
SJU
- ABE
2 stops20h 07m
United Airlines
Deal found 4/30![United Airlines logo]()
$935
This Delta deal was found by Cheapflights users on 5/1. 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 8/196:30 am
ABE
- SJU
1 stop7h 00m
Delta
Wed 8/262:40 pm
SJU
- ABE
1 stop8h 16m
Delta
Deal found 5/1![Delta logo]()
$943
This Delta deal was found by Cheapflights users on 4/30. 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 7/286:30 am
ABE
- SJU
1 stop10h 15m
Delta
Mon 8/312:56 pm
SJU
- ABE
1 stop9h 31m
Delta
Deal found 4/30![Delta logo]()
$1,002
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Fri 7/310:38 am
ABE
- SJU
1 stop9h 56m
United Airlines
Mon 7/67:40 am
SJU
- ABE
1 stop9h 26m
United Airlines
Deal found 4/30![United Airlines logo]()
$1,015
Last-minute flights from Allentown to San JuanDiscover last-minute flight deals from Allentown to San Juan. Data last updated May 5, 2026 and is based on user searches.
Discover last-minute flight deals from Allentown to San Juan. Data last updated May 5, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/2. 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.
Sun 5/106:04 am
ABE
- SJU
1 stop9h 31m
American Airlines
Thu 5/147:25 am
SJU
- ABE
1 stop16h 57m
American Airlines
Deal found 5/2![American Airlines logo]()
$468
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/149:00 am
ABE
- SJU
2 stops15h 21m
Multiple Airlines
Fri 5/226:00 am
SJU
- ABE
1 stop8h 00m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$483
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/149:00 am
ABE
- SJU
1 stop13h 43m
Multiple Airlines
Thu 5/216:00 am
SJU
- ABE
2 stops17h 26m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$494
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Mon 5/181:41 pm
ABE
- SJU
2 stops20h 37m
Multiple Airlines
Fri 5/226:00 am
SJU
- ABE
1 stop8h 00m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$435
This Kiwi.com deal was found by Cheapflights users on 5/4. 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.
Mon 5/181:41 pm
ABE
- SJU
2 stops34h 18m
Multiple Airlines
Fri 5/296:00 am
SJU
- ABE
1 stop8h 00m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$445
This Kiwi.com deal was found by Cheapflights users on 5/4. 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.
Mon 5/181:41 pm
ABE
- SJU
2 stops34h 18m
Multiple Airlines
Thu 5/286:00 am
SJU
- ABE
1 stop7h 57m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$474
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Fri 5/297:30 am
ABE
- SJU
1 stop11h 29m
Multiple Airlines
Sat 5/301:30 am
SJU
- ABE
2 stops21h 56m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$497
This American Airlines deal was found by Cheapflights users on 5/1. 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 5/306:22 am
ABE
- SJU
1 stop16h 23m
American Airlines
Wed 6/107:00 am
SJU
- ABE
1 stop17h 21m
American Airlines
Deal found 5/1![American Airlines logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 5/2. 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.
Fri 6/54:39 pm
ABE
- SJU
2 stops24h 35m
Multiple Airlines
Mon 6/156:00 am
SJU
- ABE
1 stop17h 06m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$441
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 6/61:29 pm
ABE
- SJU
2 stops23h 31m
Multiple Airlines
Mon 6/82:05 pm
SJU
- ABE
1 stop9h 01m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$472
This Kiwi.com deal was found by Cheapflights users on 5/2. 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.
Fri 6/124:39 pm
ABE
- SJU
2 stops24h 54m
Multiple Airlines
Fri 6/196:00 am
SJU
- ABE
1 stop17h 06m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$403
One-way flights from Allentown to San JuanSearch for one-way flight options from Allentown to San Juan. Find affordable one-way fares based on user searches. Data last updated May 5, 2026.
Search for one-way flight options from Allentown to San Juan. Find affordable one-way fares based on user searches. Data last updated May 5, 2026.
This Delta deal was found by Cheapflights users on 5/4. 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 8/181:10 pm
ABE
- SJU
1 stop9h 19m
Delta
Deal found 5/4![Delta logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 9/243:00 pm
ABE
- SJU
1 stop8h 38m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$177
This Delta deal was found by Cheapflights users on 5/1. 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.
Fri 8/141:00 pm
ABE
- SJU
1 stop9h 23m
Delta
Deal found 5/1![Delta logo]()
$192
This American Airlines deal was found by Cheapflights users on 5/1. 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 5/166:04 am
ABE
- SJU
1 stop14h 51m
American Airlines
Deal found 5/1![American Airlines logo]()
$196
This United Airlines deal was found by Cheapflights users on 5/3. 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.
Sat 5/3010:42 am
ABE
- SJU
2 stops13h 08m
United Airlines
Deal found 5/3![United Airlines logo]()
$211
This American Airlines deal was found by Cheapflights users on 5/3. 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 5/306:22 am
ABE
- SJU
1 stop16h 23m
American Airlines
Deal found 5/3![American Airlines logo]()
$213
This Delta deal was found by Cheapflights users on 4/30. 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.
Sat 6/612:59 pm
ABE
- SJU
1 stop9h 18m
Delta
Deal found 4/30![Delta logo]()
$234
This American Airlines deal was found by Cheapflights users on 5/1. 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 5/156:04 am
ABE
- SJU
1 stop14h 47m
American Airlines
Deal found 5/1![American Airlines logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/1610:00 am
ABE
- SJU
2 stops29h 50m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 5/4. 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.
Fri 9/258:30 am
ABE
- SJU
2 stops39h 08m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$287
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 May 5, 2026.
Round-trip from | $385 (Delta) |
|---|---|
One-way from | $151 (Delta) |
Popular in | September |
Cheapest in | February |
Average price | $531 |
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 May 5, 2026.
Use the filters below to find and compare flights from Allentown to San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AllentownSan Juan
ABE - SJU
ABESJU
Allentown-Bethlehem
Fri 7/3
1:12 pm-8:43 pm
1 stop7h 31m
San Juan Luis Munoz Marin Intl
Tue 7/7
12:56 pm-11:08 pm
1 stop10h 12m
$701
AllentownSan Juan
ABE - SJU
ABESJU
Allentown-Bethlehem
Mon 5/25
6:23 am-1:38 pm
1 stop7h 15m
San Juan Luis Munoz Marin Intl
Fri 5/29
7:30 am-5:28 pm
1 stop9h 58m
$796
AllentownSan Juan
ABE - SJU
ABESJU
Allentown-Bethlehem
Sat 5/23
2:23 pm-5:29 am
2 stops15h 06m
San Juan Luis Munoz Marin Intl
Tue 5/26
7:20 am-9:07 pm
2 stops13h 47m
$880
AllentownSan Juan
ABE - SJU
ABESJU
Allentown-Bethlehem
Mon 8/31
5:36 pm-3:42 pm
2 stops22h 06m
San Juan Luis Munoz Marin Intl
Thu 9/3
3:56 pm-10:06 am
1 stop18h 10m
$916
AllentownSan Juan
ABE - SJU
ABESJU
Allentown-Bethlehem
Tue 5/26
2:23 pm-8:34 pm
1 stop30h 11m
San Juan Luis Munoz Marin Intl
Fri 5/29
1:00 am-9:07 pm
2 stops20h 07m
$935
Quickest round-trip
AllentownSan Juan
ABE - SJU
ABESJU
Allentown-Bethlehem
Wed 8/19
6:30 am-1:30 pm
1 stop7h 00m
San Juan Luis Munoz Marin Intl
Wed 8/26
2:40 pm-10:56 pm
1 stop8h 16m
$943
AllentownSan Juan
ABE - SJU
ABESJU
Allentown-Bethlehem
Tue 7/28
6:30 am-4:45 pm
1 stop10h 15m
San Juan Luis Munoz Marin Intl
Mon 8/3
12:56 pm-10:27 pm
1 stop9h 31m
$1,002
AllentownSan Juan
ABE - SJU
ABESJU
Allentown-Bethlehem
Fri 7/3
10:38 am-8:34 pm
1 stop9h 56m
San Juan Luis Munoz Marin Intl
Mon 7/6
7:40 am-5:06 pm
1 stop9h 26m
$1,015
Cheapest one-way
AllentownSan Juan
ABE - SJU
ABESJU
Allentown-Bethlehem
Thu 9/24
3:00 pm-11:38 pm
1 stop8h 38m
$177
AllentownSan Juan
ABE - SJU
ABESJU
Allentown-Bethlehem
Sat 5/30
10:42 am-11:50 pm
2 stops13h 08m
$211
Showing 1-10 of 20 resultsSorted by cheapest first
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.
ABE-PR1
ABE-SJU
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
ABE-PR1
ABE-SJU
How far ahead should I book a flight from Allentown to San Juan?
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 26 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, December is the cheapest month in which you can book a flight from Allentown to San Juan (average of $83). Flying from Allentown to San Juan in June is currently the most expensive (average of $427). 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.
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 May 5, 2026.
See what other customers who have flown with Delta,American Airlines, andFrontier 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.
Food
7.2
Entertainment
7.8
Comfort
7.9
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Food
7.2
Entertainment
7.8
Comfort
7.9
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Food
7.2
Entertainment
7.8
Comfort
7.9
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Food
7.2
Entertainment
7.8
Comfort
7.9
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
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.
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Allentown and San Juan flights
Browse other Allentown and San Juan flight options. Last updated on May 5, 2026.
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Browse through other flights departing from Allentown. Flights are based on user searches made on Cheapflights and were last updated on May 5, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Allentown to San Juan
Discover the top 3 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 May 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$83 | Average$210 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$182 | Average$486 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$249 | Average$457 | FlexibilityNo cancel fee | On-time71% |