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Cheap flights from Allentown to San Juan from $256

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 10/31. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Allentown to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:00 pm - 11:38 pm
ABE
-
SJU
8h 38m
1 stop
Multiple Airlines Logo
5:12 pm - 9:37 pm
SJU
-
ABE
28h 25m
1 stop
$312Multiple Airlines
Thu, Sep 17 - Wed, Sep 23
Multiple Airlines Logo
3:00 pm - 11:38 pm
ABE
-
SJU
8h 38m
1 stop
Multiple Airlines Logo
8:30 am - 9:37 pm
SJU
-
ABE
13h 07m
2 stops
$360Multiple Airlines
Thu, Sep 17 - Sun, Sep 20
Delta Logo
1:10 pm - 10:29 pm
ABE
-
SJU
9h 19m
1 stop
Delta Logo
2:59 pm - 10:23 pm
SJU
-
ABE
7h 24m
1 stop
$367Delta
Sat, Aug 22 - Tue, Sep 1
Multiple Airlines Logo
8:30 am - 11:57 pm
ABE
-
SJU
15h 27m
2 stops
Multiple Airlines Logo
5:12 pm - 2:31 pm
SJU
-
ABE
21h 19m
1 stop
$397Multiple Airlines
Fri, Sep 25 - Sat, Oct 3
Multiple Airlines Logo
3:00 pm - 11:38 pm
ABE
-
SJU
8h 38m
1 stop
Multiple Airlines Logo
4:39 pm - 10:56 pm
SJU
-
ABE
30h 17m
2 stops
$400Multiple Airlines
Thu, Sep 17 - Wed, Sep 23
Delta Logo
1:10 pm - 10:29 pm
ABE
-
SJU
9h 19m
1 stop
Delta Logo
2:59 pm - 10:23 pm
SJU
-
ABE
7h 24m
1 stop
$412Delta
Sat, Aug 22 - Mon, Aug 31
American Airlines Logo
4:57 pm - 11:43 pm
ABE
-
SJU
6h 46m
1 stop
American Airlines Logo
3:47 pm - 11:25 pm
SJU
-
ABE
7h 38m
1 stop
$414American Airlines
Sat, Aug 15 - Fri, Aug 21
United Airlines Logo
6:20 am - 8:38 pm
ABE
-
SJU
14h 18m
2 stops
United Airlines Logo
7:00 am - 9:05 pm
SJU
-
ABE
14h 05m
2 stops
$431United Airlines
Fri, Sep 25 - Sat, Oct 3
Multiple Airlines Logo
9:01 pm - 1:16 pm
ABE
-
SJU
16h 15m
1 stop
Multiple Airlines Logo
8:30 am - 9:37 pm
SJU
-
ABE
13h 07m
2 stops
$434Multiple Airlines
Fri, Sep 18 - Sun, Sep 20
Multiple Airlines Logo
12:45 pm - 12:41 am
ABE
-
SJU
35h 56m
2 stops
Multiple Airlines Logo
8:37 pm - 1:44 pm
SJU
-
ABE
17h 07m
1 stop
$437Multiple Airlines
Fri, Aug 7 - Tue, Aug 11

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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
Sep 25
ABE6:20 amAllentown-Bethlehem
14h 18m
2 stops
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Oct 3
SJU7:00 amSan Juan Luis Munoz Marin Intl
14h 05m
2 stops
ABE9:05 pmAllentown-Bethlehem
$431
United Airlines
Sep 26
ABE6:20 amAllentown-Bethlehem
8h 24m
1 stop
SJU2:44 pmSan Juan Luis Munoz Marin Intl
Sep 30
SJU7:00 amSan Juan Luis Munoz Marin Intl
14h 05m
2 stops
ABE9:05 pmAllentown-Bethlehem
$472
United Airlines
Sep 26
ABE6:20 amAllentown-Bethlehem
14h 18m
2 stops
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Sep 29
SJU1:00 amSan Juan Luis Munoz Marin Intl
16h 08m
3 stops
ABE5:08 pmAllentown-Bethlehem
$497

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
Aug 15
ABE4:57 pmAllentown-Bethlehem
6h 46m
1 stop
SJU11:43 pmSan Juan Luis Munoz Marin Intl
Aug 21
SJU3:47 pmSan Juan Luis Munoz Marin Intl
7h 38m
1 stop
ABE11:25 pmAllentown-Bethlehem
$414
American Airlines
Aug 22
ABE4:57 pmAllentown-Bethlehem
6h 46m
1 stop
SJU11:43 pmSan Juan Luis Munoz Marin Intl
Aug 27
SJU3:47 pmSan Juan Luis Munoz Marin Intl
7h 38m
1 stop
ABE11:25 pmAllentown-Bethlehem
$449
American Airlines
Aug 13
ABE4:57 pmAllentown-Bethlehem
7h 02m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Aug 21
SJU3:47 pmSan Juan Luis Munoz Marin Intl
7h 38m
1 stop
ABE11:25 pmAllentown-Bethlehem
$480

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 June 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

Cheapest round-trip

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Thu 9/17

3:00 pm-11:38 pm

1 stop8h 38m

San Juan Luis Munoz Marin Intl

Wed 9/23

5:12 pm-9:37 pm

1 stop28h 25m

$312

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Thu 9/17

3:00 pm-11:38 pm

1 stop8h 38m

San Juan Luis Munoz Marin Intl

Sun 9/20

8:30 am-9:37 pm

2 stops13h 07m

$360

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Sat 8/22

1:10 pm-10:29 pm

1 stop9h 19m

San Juan Luis Munoz Marin Intl

Tue 9/1

2:59 pm-10:23 pm

1 stop7h 24m

$367

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Fri 9/25

8:30 am-11:57 pm

2 stops15h 27m

San Juan Luis Munoz Marin Intl

Sat 10/3

5:12 pm-2:31 pm

1 stop21h 19m

$397

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Thu 9/17

3:00 pm-11:38 pm

1 stop8h 38m

San Juan Luis Munoz Marin Intl

Wed 9/23

4:39 pm-10:56 pm

2 stops30h 17m

$400

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Sat 8/22

1:10 pm-10:29 pm

1 stop9h 19m

San Juan Luis Munoz Marin Intl

Mon 8/31

2:59 pm-10:23 pm

1 stop7h 24m

$412
Quickest round-trip

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Sat 8/15

4:57 pm-11:43 pm

1 stop6h 46m

San Juan Luis Munoz Marin Intl

Fri 8/21

3:47 pm-11:25 pm

1 stop7h 38m

$414

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Fri 9/25

6:20 am-8:38 pm

2 stops14h 18m

San Juan Luis Munoz Marin Intl

Sat 10/3

7:00 am-9:05 pm

2 stops14h 05m

$431

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Fri 9/18

9:01 pm-1:16 pm

1 stop16h 15m

San Juan Luis Munoz Marin Intl

Sun 9/20

8:30 am-9:37 pm

2 stops13h 07m

$434

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Fri 8/7

12:45 pm-12:41 am

2 stops35h 56m

San Juan Luis Munoz Marin Intl

Tue 8/11

8:37 pm-1:44 pm

1 stop17h 07m

$437

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 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 February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $333.

How far in advance should I book a flight from Allentown 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 $556 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 $274 on momondo.

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

You could potentially save up to 24% 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 June 2026, prices for Allentown to San Juan Luis Munoz Marin Intl Airport flights are approximately 146% 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 02m

Direct flights

None
The fastest flight from Allentown to San Juan Luis Munoz Marin Intl Airport takes 7h 02m
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

Frequently asked questions about flying from Allentown to San Juan Luis Munoz Marin Intl Airport

  • 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 02m 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
DeltaPriceFrom $182Free CancellationRating
7.8
8,449 reviews
Search Delta flights
American AirlinesPriceFrom $249Free CancellationRating
7.1
11,768 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
Rio Grande
Humacao
Caguas
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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