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Cheap flights from Allentown to San Juan from $234

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 7/27. 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
1:54 pm - 11:50 pm
ABE
-
SJU
9h 56m
1 stop
American Airlines Logo
3:50 pm - 10:12 pm
SJU
-
ABE
6h 22m
1 stop
$386American Airlines
Sat, Oct 17 - Sat, Oct 24
Multiple Airlines Logo
12:29 pm - 4:05 pm
ABE
-
SJU
27h 36m
2 stops
Multiple Airlines Logo
6:00 am - 2:04 pm
SJU
-
ABE
8h 04m
1 stop
$404Multiple Airlines
Thu, Aug 6 - Mon, Aug 10
Multiple Airlines Logo
7:45 am - 11:38 pm
ABE
-
SJU
15h 53m
1 stop
Multiple Airlines Logo
5:12 pm - 2:16 pm
SJU
-
ABE
21h 04m
1 stop
$409Multiple Airlines
Thu, Oct 1 - Sat, Oct 24
Multiple Airlines Logo
7:50 pm - 3:58 pm
ABE
-
SJU
20h 08m
1 stop
Multiple Airlines Logo
5:12 pm - 9:37 pm
SJU
-
ABE
28h 25m
1 stop
$415Multiple Airlines
Mon, Sep 7 - Sat, Sep 19
Delta Logo
1:10 pm - 10:29 pm
ABE
-
SJU
9h 19m
1 stop
Delta Logo
6:48 am - 5:30 pm
SJU
-
ABE
10h 42m
1 stop
$420Delta
Sat, Aug 22 - Wed, Aug 26
American Airlines Logo
1:54 pm - 11:50 pm
ABE
-
SJU
9h 56m
1 stop
American Airlines Logo
8:35 am - 10:12 pm
SJU
-
ABE
13h 37m
1 stop
$421American Airlines
Sat, Oct 17 - Tue, Oct 27
American Airlines Logo
6:33 am - 11:50 pm
ABE
-
SJU
17h 17m
1 stop
American Airlines Logo
3:50 pm - 10:12 pm
SJU
-
ABE
6h 22m
1 stop
$426American Airlines
Sun, Oct 25 - Sat, Oct 31
Multiple Airlines Logo
8:00 am - 2:11 am
ABE
-
SJU
18h 11m
1 stop
Multiple Airlines Logo
6:00 am - 2:04 pm
SJU
-
ABE
8h 04m
1 stop
$427Multiple Airlines
Thu, Aug 6 - Mon, Aug 10
American Airlines Logo
5:10 pm - 12:15 am
ABE
-
SJU
7h 05m
1 stop
American Airlines Logo
3:47 pm - 12:30 am
SJU
-
ABE
8h 43m
1 stop
$429American Airlines
Thu, Aug 6 - Thu, Aug 13
Multiple Airlines Logo
7:35 am - 4:05 pm
ABE
-
SJU
8h 30m
1 stop
Multiple Airlines Logo
7:00 am - 5:10 pm
SJU
-
ABE
34h 10m
2 stops
$443Multiple Airlines
Fri, Jul 31 - Wed, Aug 5

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
Oct 17
ABE1:54 pmAllentown-Bethlehem
9h 56m
1 stop
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Oct 24
SJU3:50 pmSan Juan Luis Munoz Marin Intl
6h 22m
1 stop
ABE10:12 pmAllentown-Bethlehem
$386
American Airlines
Oct 17
ABE1:54 pmAllentown-Bethlehem
9h 56m
1 stop
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Oct 27
SJU8:35 amSan Juan Luis Munoz Marin Intl
13h 37m
1 stop
ABE10:12 pmAllentown-Bethlehem
$421
American Airlines
Oct 25
ABE6:33 amAllentown-Bethlehem
17h 17m
1 stop
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Oct 31
SJU3:50 pmSan Juan Luis Munoz Marin Intl
6h 22m
1 stop
ABE10:12 pmAllentown-Bethlehem
$426

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
Aug 22
ABE1:10 pmAllentown-Bethlehem
9h 19m
1 stop
SJU10:29 pmSan Juan Luis Munoz Marin Intl
Aug 26
SJU6:48 amSan Juan Luis Munoz Marin Intl
10h 42m
1 stop
ABE5:30 pmAllentown-Bethlehem
$420
Delta
Sep 5
ABE6:30 amAllentown-Bethlehem
10h 05m
1 stop
SJU4:35 pmSan Juan Luis Munoz Marin Intl
Sep 18
SJU12:58 pmSan Juan Luis Munoz Marin Intl
9h 58m
1 stop
ABE10:56 pmAllentown-Bethlehem
$462
Delta
Oct 20
ABE1:00 pmAllentown-Bethlehem
8h 59m
1 stop
SJU9:59 pmSan Juan Luis Munoz Marin Intl
Oct 23
SJU12:46 pmSan Juan Luis Munoz Marin Intl
10h 00m
1 stop
ABE10:46 pmAllentown-Bethlehem
$526

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 May 11, 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

Sat 10/17

1:54 pm-11:50 pm

1 stop9h 56m

San Juan Luis Munoz Marin Intl

Sat 10/24

3:50 pm-10:12 pm

1 stop6h 22m

$386

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Thu 8/6

12:29 pm-4:05 pm

2 stops27h 36m

San Juan Luis Munoz Marin Intl

Mon 8/10

6:00 am-2:04 pm

1 stop8h 04m

$404

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Thu 10/1

7:45 am-11:38 pm

1 stop15h 53m

San Juan Luis Munoz Marin Intl

Sat 10/24

5:12 pm-2:16 pm

1 stop21h 04m

$409

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Mon 9/7

7:50 pm-3:58 pm

1 stop20h 08m

San Juan Luis Munoz Marin Intl

Sat 9/19

5:12 pm-9:37 pm

1 stop28h 25m

$415

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

Wed 8/26

6:48 am-5:30 pm

1 stop10h 42m

$420

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Sat 10/17

1:54 pm-11:50 pm

1 stop9h 56m

San Juan Luis Munoz Marin Intl

Tue 10/27

8:35 am-10:12 pm

1 stop13h 37m

$421

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Sun 10/25

6:33 am-11:50 pm

1 stop17h 17m

San Juan Luis Munoz Marin Intl

Sat 10/31

3:50 pm-10:12 pm

1 stop6h 22m

$426

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Thu 8/6

8:00 am-2:11 am

1 stop18h 11m

San Juan Luis Munoz Marin Intl

Mon 8/10

6:00 am-2:04 pm

1 stop8h 04m

$427
Quickest round-trip

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Thu 8/6

5:10 pm-12:15 am

1 stop7h 05m

San Juan Luis Munoz Marin Intl

Thu 8/13

3:47 pm-12:30 am

1 stop8h 43m

$429

AllentownSan Juan

ABE - SJU

ABESJU

Allentown-Bethlehem

Fri 7/31

7:35 am-4:05 pm

1 stop8h 30m

San Juan Luis Munoz Marin Intl

Wed 8/5

7:00 am-5:10 pm

2 stops34h 10m

$443

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 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 $545 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 $311 on momondo.

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

You could potentially save up to 36% 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 May 2026, prices for Allentown to San Juan Luis Munoz Marin Intl Airport flights are approximately 41% 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

9h 19m

Direct flights

None
The fastest flight from Allentown to San Juan Luis Munoz Marin Intl Airport takes 9h 19m
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. 9h 19m 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
5.6
2,951 reviews
Search Frontier flights
DeltaPriceFrom $182Free CancellationRating
7.9
8,452 reviews
Search Delta flights
American AirlinesPriceFrom $249Free CancellationRating
7.1
11,664 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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