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Cheap flights from Allentown to San Juan from $171

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 2/25. 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.
Delta Logo
12:47 pm - 9:12 pm
ABE
-
SJU
7h 25m
1 stop
Delta Logo
6:15 am - 12:05 pm
SJU
-
ABE
6h 50m
1 stop
$319Delta
Tue, Feb 24 - Fri, Feb 27
Delta Logo
12:47 pm - 11:58 pm
ABE
-
SJU
10h 11m
1 stop
Delta Logo
6:15 am - 5:12 pm
SJU
-
ABE
11h 57m
1 stop
$355Delta
Wed, Feb 25 - Wed, Mar 4
American Airlines Logo
7:30 am - 8:50 pm
ABE
-
SJU
12h 20m
1 stop
American Airlines Logo
1:58 pm - 10:26 pm
SJU
-
ABE
9h 28m
1 stop
$360American Airlines
Sun, Feb 8 - Tue, Feb 10
Delta Logo
12:47 pm - 9:12 pm
ABE
-
SJU
7h 25m
1 stop
Delta Logo
6:15 am - 12:05 pm
SJU
-
ABE
6h 50m
1 stop
$362Delta
Fri, Feb 20 - Fri, Feb 27
American Airlines Logo
6:04 am - 9:49 pm
ABE
-
SJU
14h 45m
1 stop
American Airlines Logo
8:40 am - 12:29 am
SJU
-
ABE
16h 49m
1 stop
$367American Airlines
Sun, Feb 22 - Fri, Feb 27
Multiple Airlines Logo
2:12 pm - 2:13 am
ABE
-
SJU
12h 01m
1 stop
Multiple Airlines Logo
7:00 am - 10:39 pm
SJU
-
ABE
15h 39m
1 stop
$368Multiple Airlines
Sun, Mar 8 - Thu, Mar 12
Delta Logo
12:47 pm - 11:58 pm
ABE
-
SJU
10h 11m
1 stop
Delta Logo
6:15 am - 12:05 pm
SJU
-
ABE
6h 50m
1 stop
$403Delta
Sat, Feb 21 - Fri, Feb 27
Delta Logo
12:47 pm - 9:12 pm
ABE
-
SJU
7h 25m
1 stop
Delta Logo
6:15 am - 12:05 pm
SJU
-
ABE
6h 50m
1 stop
$404Delta
Fri, Feb 20 - Tue, Feb 24
Multiple Airlines Logo
9:00 am - 1:37 am
ABE
-
SJU
15h 37m
2 stops
Multiple Airlines Logo
5:25 pm - 11:48 am
SJU
-
ABE
19h 23m
1 stop
$405Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
Delta Logo
12:47 pm - 9:12 pm
ABE
-
SJU
7h 25m
1 stop
Delta Logo
7:30 am - 5:12 pm
SJU
-
ABE
10h 42m
1 stop
$406Delta
Fri, Feb 27 - Sat, Mar 7

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

Our best United Airlines deals on Allentown to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines
Feb 28
ABE5:23 pmAllentown-Bethlehem
11h 48m
2 stops
SJU6:11 amSan Juan Luis Munoz Marin Intl
Mar 4
SJU8:05 amSan Juan Luis Munoz Marin Intl
13h 48m
2 stops
ABE8:53 pmAllentown-Bethlehem
$400
United Airlines
Feb 8
ABE11:30 amAllentown-Bethlehem
8h 30m
1 stop
SJU9:00 pmSan Juan Luis Munoz Marin Intl
Feb 10
SJU2:05 amSan Juan Luis Munoz Marin Intl
15h 17m
2 stops
ABE4:22 pmAllentown-Bethlehem
$412
United Airlines
Feb 8
ABE6:15 amAllentown-Bethlehem
8h 25m
1 stop
SJU3:40 pmSan Juan Luis Munoz Marin Intl
Feb 10
SJU2:05 amSan Juan Luis Munoz Marin Intl
15h 17m
2 stops
ABE4:22 pmAllentown-Bethlehem
$440

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
Feb 8
ABE7:30 amAllentown-Bethlehem
12h 20m
1 stop
SJU8:50 pmSan Juan Luis Munoz Marin Intl
Feb 10
SJU1:58 pmSan Juan Luis Munoz Marin Intl
9h 28m
1 stop
ABE10:26 pmAllentown-Bethlehem
$360
American Airlines
Mar 24
ABE12:45 pmAllentown-Bethlehem
6h 54m
1 stop
SJU7:39 pmSan Juan Luis Munoz Marin Intl
Mar 31
SJU4:42 pmSan Juan Luis Munoz Marin Intl
6h 49m
1 stop
ABE11:31 pmAllentown-Bethlehem
$422
American Airlines
Feb 1
ABE7:30 amAllentown-Bethlehem
6h 29m
1 stop
SJU2:59 pmSan Juan Luis Munoz Marin Intl
Feb 3
SJU1:58 pmSan Juan Luis Munoz Marin Intl
9h 28m
1 stop
ABE10:26 pmAllentown-Bethlehem
$444

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 January 29, 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

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Tue 2/24

12:47 pm-9:12 pm

1 stop7h 25m

San Juan Luis Munoz Marin Intl

Fri 2/27

6:15 am-12:05 pm

1 stop6h 50m

$319

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Wed 2/25

12:47 pm-11:58 pm

1 stop10h 11m

San Juan Luis Munoz Marin Intl

Wed 3/4

6:15 am-5:12 pm

1 stop11h 57m

$355

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Sun 2/8

7:30 am-8:50 pm

1 stop12h 20m

San Juan Luis Munoz Marin Intl

Tue 2/10

1:58 pm-10:26 pm

1 stop9h 28m

$360

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Fri 2/20

12:47 pm-9:12 pm

1 stop7h 25m

San Juan Luis Munoz Marin Intl

Fri 2/27

6:15 am-12:05 pm

1 stop6h 50m

$362

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Sun 2/22

6:04 am-9:49 pm

1 stop14h 45m

San Juan Luis Munoz Marin Intl

Fri 2/27

8:40 am-12:29 am

1 stop16h 49m

$367

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Sun 3/8

2:12 pm-2:13 am

1 stop12h 01m

San Juan Luis Munoz Marin Intl

Thu 3/12

7:00 am-10:39 pm

1 stop15h 39m

$368

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Sat 2/21

12:47 pm-11:58 pm

1 stop10h 11m

San Juan Luis Munoz Marin Intl

Fri 2/27

6:15 am-12:05 pm

1 stop6h 50m

$403

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Fri 2/20

12:47 pm-9:12 pm

1 stop7h 25m

San Juan Luis Munoz Marin Intl

Tue 2/24

6:15 am-12:05 pm

1 stop6h 50m

$404

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Wed 2/25

9:00 am-1:37 am

2 stops15h 37m

San Juan Luis Munoz Marin Intl

Wed 3/4

5:25 pm-11:48 am

1 stop19h 23m

$405

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Fri 2/27

12:47 pm-9:12 pm

1 stop7h 25m

San Juan Luis Munoz Marin Intl

Sat 3/7

7:30 am-5:12 pm

1 stop10h 42m

$406

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 March is also cheap. Prices for this month can be found on momondo for an average of $322.

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 $523 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 $301 on momondo.

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

You could potentially save up to 66% 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 January 2026, prices for Allentown to San Juan Luis Munoz Marin Intl Airport flights are approximately 155% more expensive 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

7h 01m

Direct flights

None
The fastest flight from Allentown to San Juan Luis Munoz Marin Intl Airport takes 7h 01m
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. 7h 01m 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 $78Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
United AirlinesPriceFrom $161Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
DeltaPriceFrom $182Free CancellationRating
7.9
8,127 reviews
Search Delta flights
American AirlinesPriceFrom $249Free CancellationRating
7.2
11,206 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
Humacao
Rio Grande
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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