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San Juan

$131+ Cheap flights from Harlingen, TX (HRL) 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — SJU
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Harlingen to San Juan

Cheapest flights from Harlingen to San Juan
Explore the most affordable flight options available from Harlingen to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This American Airlines deal was found by Cheapflights users on 1/19. 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 4/188:03 pm
HRL
-
SJU
1 stop7h 29m
American Airlines
Wed 4/223:44 pm
SJU
-
HRL
2 stops19h 33m
American Airlines
Deal found 1/19$260
This United Airlines deal was found by Cheapflights users on 1/19. 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 5/27:00 am
HRL
-
SJU
1 stop7h 42m
United Airlines
Tue 5/57:20 am
SJU
-
HRL
2 stops13h 40m
United Airlines
Deal found 1/19$324
This United Airlines deal was found by Cheapflights users on 1/19. 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 5/57:00 am
HRL
-
SJU
1 stop7h 42m
United Airlines
Wed 5/62:55 pm
SJU
-
HRL
1 stop8h 04m
United Airlines
Deal found 1/19$350
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Sun 2/227:00 am
HRL
-
SJU
1 stop7h 36m
United Airlines
Sat 2/287:40 am
SJU
-
HRL
1 stop10h 24m
United Airlines
Deal found 1/20$358
This American Airlines deal was found by Cheapflights users on 1/19. 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.
Mon 2/236:46 pm
HRL
-
SJU
2 stops16h 47m
American Airlines
Thu 2/267:00 am
SJU
-
HRL
2 stops17h 53m
American Airlines
Deal found 1/19$363
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 4/146:00 am
HRL
-
SJU
1 stop7h 42m
American Airlines
Sat 4/1811:59 pm
SJU
-
HRL
1 stop11h 18m
American Airlines
Deal found 1/20$370
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 3/2512:10 pm
HRL
-
SJU
1 stop7h 16m
United Airlines
Wed 4/12:55 pm
SJU
-
HRL
1 stop8h 04m
United Airlines
Deal found 1/20$393
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 3/2510:42 am
HRL
-
SJU
1 stop10h 49m
American Airlines
Wed 4/16:00 am
SJU
-
HRL
2 stops17h 53m
American Airlines
Deal found 1/20$448
This Southwest deal was found by Cheapflights users on 1/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2511:10 am
HRL
-
SJU
2 stops12h 05m
Southwest
Wed 4/16:40 am
SJU
-
HRL
2 stops10h 30m
Southwest
Deal found 1/20$481

Find flight deals from Harlingen to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Harlingen (HRL) 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 January 21, 2026.

Round-trip from

$260
(American Airlines)

One-way from

$131
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$400
From Harlingen Valley Intl to San Juan
Search Deals
One-way flight from Harlingen Valley Intl to San Juan
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($199 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 14% potential price decrease ($83 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Harlingen 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 January 21, 2026.
Use the filters below to find and compare flights from Harlingen to San Juan that are best for you.

Fly from

Harlingen

Fly to

San Juan

Route

Depart

Return

Price

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 2/23

7:00 am-4:36 pm

1 stop7h 36m

San Juan Luis Munoz Marin Intl

Thu 2/26

3:46 pm-9:59 pm

1 stop8h 13m

$260

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Tue 4/14

2:47 pm-10:53 am

2 stops19h 06m

San Juan Luis Munoz Marin Intl

Sat 4/18

6:01 pm-10:17 am

2 stops17h 16m

$363

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Wed 3/25

12:10 pm-8:26 pm

1 stop7h 16m

San Juan Luis Munoz Marin Intl

Wed 4/1

2:55 pm-9:59 pm

1 stop8h 04m

$393

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Sun 2/22

7:00 am-4:36 pm

1 stop7h 36m

San Juan Luis Munoz Marin Intl

Fri 2/27

2:05 am-4:04 pm

2 stops15h 59m

$398

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Sat 4/18

2:47 pm-9:13 am

2 stops17h 26m

San Juan Luis Munoz Marin Intl

Wed 4/22

3:44 pm-10:17 am

2 stops19h 33m

$403

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Sun 2/22

8:06 pm-1:33 pm

2 stops15h 27m

San Juan Luis Munoz Marin Intl

Sat 2/28

7:00 am-11:03 pm

2 stops18h 03m

$511

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Wed 1/28

12:10 pm-9:26 pm

1 stop7h 16m

San Juan Luis Munoz Marin Intl

Wed 2/4

3:46 pm-9:59 pm

1 stop8h 13m

$523

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Fri 2/20

8:06 pm-3:13 pm

1 stop17h 07m

San Juan Luis Munoz Marin Intl

Mon 2/23

7:01 pm-10:12 am

2 stops17h 11m

$591

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Wed 2/4

12:10 pm-9:26 pm

1 stop7h 16m

San Juan Luis Munoz Marin Intl

Sun 2/8

7:45 am-4:06 pm

1 stop10h 21m

$613

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Wed 1/28

9:20 am-12:36 am

2 stops13h 16m

San Juan Luis Munoz Marin Intl

Sat 1/31

2:05 am-4:06 pm

2 stops16h 01m

$643

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 13 results
1
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Best time to book a flight from Harlingen to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Harlingen with our price prediction graph.
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 Harlingen to San Juan

What is the cheapest month to book a flight from Harlingen, Texas to San Juan?

Currently, February is the cheapest month in which you can book a flight from Harlingen, Texas to San Juan (average of $240). Flying from Harlingen, Texas to San Juan in October is currently the most expensive (average of $448). 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.

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 January 21, 2026.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from Harlingen to San Juan to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,191 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,174 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Harlingen to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Harlingen to San Juan?

    Harlingen Valley Intl (HRL), located 3.7 mi from the city center, is the airport you fly out of when you book flights from Harlingen to San Juan. 3 airlines have flights from Valley Intl to San Juan on a regular basis. Booking flights from Harlingen Valley Intl to San Juan should not be difficult; the airport handles an average of 0 outbound flights to San Juan per day.

  • How long is the flight from Harlingen, Texas to San Juan?

    Departing from Harlingen, Texas to San Juan will take you 7h 36m. The distance from Harlingen, Texas to San Juan is about 2086 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Harlingen, Texas to San Juan round-trip?

    Our cheapest airline available from Harlingen, Texas to San Juan is United Airlines. Our recent data shows that you can find tickets from as low as $260 on this airline. Additional options worth looking into are American Airlines and Southwest, starting at $306 and $378 round-trip. United Airlines is currently priced 59% below the average price you’ll pay for this route.

  • Can I find deals for flights from Harlingen to San Juan that include hotel bookings?

    Yes. In addition to deals on Harlingen to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Harlingen to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harlingen to San Juan.

  • Can I find deals for business class flights from Harlingen to San Juan?

    Yes. Cheapflights offers flight deals from Harlingen to San Juan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Harlingen, Texas to San Juan?

    Currently, February is the cheapest month in which you can book a flight from Harlingen, Texas to San Juan (average of $240). Flying from Harlingen, Texas to San Juan in October is currently the most expensive (average of $448). 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.

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Alternative routes for Harlingen to San Juan

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Top 3 airlines flying from Harlingen to San Juan

Discover the top 3 airlines that operate flights from Harlingen 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$260Average$498FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$306Average$645FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$378Average$544FlexibilityNo cancel feeOn-time63%

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