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Cheap flights from Allentown to San Juan from $181

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Allentown to San Juan departing on 4/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Allentown to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:04 am - 9:15 pm
ABE
-
SJU
15h 11m
1 stop
American Airlines Logo
7:25 am - 12:22 am
SJU
-
ABE
16h 57m
1 stop
$322American Airlines
Sun, Apr 26 - Wed, Apr 29
Delta Logo
6:30 am - 1:30 pm
ABE
-
SJU
7h 00m
1 stop
Delta Logo
2:26 pm - 10:56 pm
SJU
-
ABE
8h 30m
1 stop
$356Delta
Sun, Sep 6 - Tue, Sep 15
American Airlines Logo
6:00 am - 8:51 pm
ABE
-
SJU
14h 51m
1 stop
American Airlines Logo
7:25 am - 12:22 am
SJU
-
ABE
16h 57m
1 stop
$362American Airlines
Tue, Apr 21 - Thu, Apr 30
Multiple Airlines Logo
12:17 pm - 8:49 am
ABE
-
SJU
20h 32m
1 stop
Multiple Airlines Logo
8:27 pm - 9:06 pm
SJU
-
ABE
24h 39m
1 stop
$365Multiple Airlines
Tue, May 12 - Thu, May 14
American Airlines Logo
6:04 am - 3:35 pm
ABE
-
SJU
9h 31m
1 stop
American Airlines Logo
7:25 am - 12:22 am
SJU
-
ABE
16h 57m
1 stop
$367American Airlines
Wed, May 6 - Wed, May 13
American Airlines Logo
6:04 am - 8:51 pm
ABE
-
SJU
14h 47m
1 stop
American Airlines Logo
7:25 am - 12:22 am
SJU
-
ABE
16h 57m
1 stop
$377American Airlines
Thu, Apr 9 - Thu, Apr 16
Multiple Airlines Logo
1:41 pm - 11:49 am
ABE
-
SJU
22h 08m
1 stop
Multiple Airlines Logo
2:59 am - 2:56 pm
SJU
-
ABE
11h 57m
1 stop
$390Multiple Airlines
Mon, Apr 13 - Wed, Apr 15
American Airlines Logo
1:56 pm - 10:56 pm
ABE
-
SJU
9h 00m
1 stop
American Airlines Logo
8:00 am - 7:05 pm
SJU
-
ABE
11h 05m
1 stop
$392American Airlines
Tue, Aug 11 - Tue, Aug 18
Multiple Airlines Logo
1:41 pm - 12:33 pm
ABE
-
SJU
22h 52m
1 stop
Multiple Airlines Logo
2:59 am - 2:56 pm
SJU
-
ABE
11h 57m
1 stop
$398Multiple Airlines
Fri, Apr 10 - Wed, Apr 15
American Airlines Logo
6:04 am - 8:51 pm
ABE
-
SJU
14h 47m
1 stop
American Airlines Logo
7:25 am - 12:22 am
SJU
-
ABE
16h 57m
1 stop
$402American Airlines
Sat, Apr 25 - Wed, Apr 29

American Airlines flights from Allentown to San Juan Luis Munoz Marin Intl Airport

Our best American Airlines deals on Allentown to San Juan Luis Munoz Marin Intl Airport flight tickets
American Airlines
Apr 26
ABE6:04 amAllentown-Bethlehem
15h 11m
1 stop
SJU9:15 pmSan Juan Luis Munoz Marin Intl
Apr 29
SJU7:25 amSan Juan Luis Munoz Marin Intl
16h 57m
1 stop
ABE12:22 amAllentown-Bethlehem
$322
American Airlines
Apr 21
ABE6:00 amAllentown-Bethlehem
14h 51m
1 stop
SJU8:51 pmSan Juan Luis Munoz Marin Intl
Apr 30
SJU7:25 amSan Juan Luis Munoz Marin Intl
16h 57m
1 stop
ABE12:22 amAllentown-Bethlehem
$362
American Airlines
May 6
ABE6:04 amAllentown-Bethlehem
9h 31m
1 stop
SJU3:35 pmSan Juan Luis Munoz Marin Intl
May 13
SJU7:25 amSan Juan Luis Munoz Marin Intl
16h 57m
1 stop
ABE12:22 amAllentown-Bethlehem
$367

Delta flights from Allentown to San Juan Luis Munoz Marin Intl Airport

Our best Delta deals on Allentown to San Juan Luis Munoz Marin Intl Airport flight tickets
Delta
Sep 6
ABE6:30 amAllentown-Bethlehem
7h 00m
1 stop
SJU1:30 pmSan Juan Luis Munoz Marin Intl
Sep 15
SJU2:26 pmSan Juan Luis Munoz Marin Intl
8h 30m
1 stop
ABE10:56 pmAllentown-Bethlehem
$356
Delta
Apr 11
ABE12:57 pmAllentown-Bethlehem
7h 21m
1 stop
SJU8:18 pmSan Juan Luis Munoz Marin Intl
Apr 15
SJU7:30 amSan Juan Luis Munoz Marin Intl
9h 49m
1 stop
ABE5:19 pmAllentown-Bethlehem
$463
Delta
Mar 21
ABE12:51 pmAllentown-Bethlehem
10h 24m
1 stop
SJU11:15 pmSan Juan Luis Munoz Marin Intl
Mar 27
SJU1:00 pmSan Juan Luis Munoz Marin Intl
9h 56m
1 stop
ABE10:56 pmAllentown-Bethlehem
$660

momondo Fare Finder

 
Customize your flight search to find flights from Allentown to San Juan Luis Munoz Marin Intl Airport 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, momondo users made 832,500 searches. Data last updated March 14, 2026.
Use the filters below to find and compare flights from Allentown to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Sun 4/26

6:04 am-9:15 pm

1 stop15h 11m

San Juan Luis Munoz Marin Intl

Wed 4/29

7:25 am-12:22 am

1 stop16h 57m

$322
Quickest round-trip

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Sun 9/6

6:30 am-1:30 pm

1 stop7h 00m

San Juan Luis Munoz Marin Intl

Tue 9/15

2:26 pm-10:56 pm

1 stop8h 30m

$356

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Tue 4/21

6:00 am-8:51 pm

1 stop14h 51m

San Juan Luis Munoz Marin Intl

Thu 4/30

7:25 am-12:22 am

1 stop16h 57m

$362

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Tue 5/12

12:17 pm-8:49 am

1 stop20h 32m

San Juan Luis Munoz Marin Intl

Thu 5/14

8:27 pm-9:06 pm

1 stop24h 39m

$365

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Wed 5/6

6:04 am-3:35 pm

1 stop9h 31m

San Juan Luis Munoz Marin Intl

Wed 5/13

7:25 am-12:22 am

1 stop16h 57m

$367

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Thu 4/9

6:04 am-8:51 pm

1 stop14h 47m

San Juan Luis Munoz Marin Intl

Thu 4/16

7:25 am-12:22 am

1 stop16h 57m

$377

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Mon 4/13

1:41 pm-11:49 am

1 stop22h 08m

San Juan Luis Munoz Marin Intl

Wed 4/15

2:59 am-2:56 pm

1 stop11h 57m

$390

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Tue 8/11

1:56 pm-10:56 pm

1 stop9h 00m

San Juan Luis Munoz Marin Intl

Tue 8/18

8:00 am-7:05 pm

1 stop11h 05m

$392

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Fri 4/10

1:41 pm-12:33 pm

1 stop22h 52m

San Juan Luis Munoz Marin Intl

Wed 4/15

2:59 am-2:56 pm

1 stop11h 57m

$398

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Sat 4/25

6:04 am-8:51 pm

1 stop14h 47m

San Juan Luis Munoz Marin Intl

Wed 4/29

7:25 am-12:22 am

1 stop16h 57m

$402

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Juan from

How to get the cheapest flight ticket from Allentown to San Juan Luis Munoz Marin Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Allentown and San Juan Luis Munoz Marin Intl Airport?

What is the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport?

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $330.

How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Allentown when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $536 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Allentown for as low as $303 on momondo.

Can stopping save me money on Allentown to San Juan Luis Munoz Marin Intl Airport flights?

You could potentially save up to 69% on your flight if you consider stops on a Allentown to San Juan Luis Munoz Marin Intl Airport flight.

How have Allentown to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of March 2026, prices for Allentown to San Juan Luis Munoz Marin Intl Airport flights are approximately 36% cheaper when compared to flights at the same time last year.

When to book flights from Allentown to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Allentown to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Allentown to San Juan Luis Munoz Marin Intl Airport (ABE to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Allentown to San Juan Luis Munoz Marin Intl Airport

Fastest flight time

6h 55m

Direct flights

None
The fastest flight from Allentown to San Juan Luis Munoz Marin Intl Airport takes 6h 55m
There are no direct flights from Allentown to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from Allentown to San Juan Luis Munoz Marin Intl Airport.
Search flight deals

  • How far is Allentown-Bethlehem to San Juan Luis Munoz Marin Intl by plane?

    A flight from Allentown-Bethlehem to San Juan Luis Munoz Marin Intl will travel around 1630.1 mi. 6h 55m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Allentown-Bethlehem Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Allentown-Bethlehem Airport to San Juan Luis Munoz Marin Intl Airport refresh daily.

  • How many operators does momondo search for flights from Allentown-Bethlehem Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Allentown-Bethlehem Airport to San Juan Luis Munoz Marin Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Allentown-Bethlehem Airport to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The necessary travel and health documents for your San Juan Luis Munoz Marin Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Allentown to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Allentown to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Allentown to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $83Free CancellationRating
5.7
3,032 reviews
Search Frontier flights
DeltaPriceFrom $182Free CancellationRating
7.9
8,291 reviews
Search Delta flights
United AirlinesPriceFrom $242Free CancellationRating
7.4
9,423 reviews
Search United Airlines flights
American AirlinesPriceFrom $249Free CancellationRating
7.1
11,464 reviews
Search American Airlines flights

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Caguas
Rio Grande
Humacao
Bayamón

Why use momondo?

Why should I use momondo to find a flight deal from Allentown to San Juan?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Allentown to San Juan for you.

Can I find flights from Allentown to San Juan with flexible booking policies on momondo?

All flight searches from Allentown to San Juan on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Allentown to San Juan?

momondo provides multiple filters to help you find the best flight to San Juan from Allentown. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Allentown to San Juan right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Juan, momondo offers a useful price alert feature which will track prices for flights to San Juan from Allentown and alert you when they change.

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