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San Juan

$126+ 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — SJU
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 December 4, 2025.

This United Airlines deal was found by Cheapflights users on 12/3. 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.
Fri 12/57:00 amHRL - SJU
1 stop7h 36mUnited Airlines
Sat 12/133:46 pmSJU - HRL
1 stop8h 08mUnited Airlines
Deal found 12/3$570
This American Airlines deal was found by Cheapflights users on 12/3. 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.
Fri 12/56:10 pmHRL - SJU
2 stops17h 20mAmerican Airlines
Sat 12/136:42 pmSJU - HRL
2 stops16h 56mAmerican Airlines
Deal found 12/3$655
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Thu 12/412:16 pmHRL - SJU
1 stop7h 10mUnited Airlines
Sat 12/137:45 amSJU - HRL
1 stop10h 14mUnited Airlines
Deal found 12/3$660
This American Airlines deal was found by Cheapflights users on 12/2. 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.
Thu 12/2510:12 amHRL - SJU
2 stops21h 23mAmerican Airlines
Mon 1/127:12 pmSJU - HRL
2 stops17h 24mAmerican Airlines
Deal found 12/2$748
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Fri 12/59:20 amHRL - SJU
2 stops13h 16mUnited Airlines
Sun 12/147:45 amSJU - HRL
1 stop10h 14mUnited Airlines
Deal found 12/3$783
This American Airlines deal was found by Cheapflights users on 12/3. 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.
Thu 12/46:10 pmHRL - SJU
2 stops15h 49mAmerican Airlines
Sun 12/146:00 amSJU - HRL
2 stops11h 29mAmerican Airlines
Deal found 12/3$800
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/177:00 amHRL - SJU
2 stops15h 36mUnited Airlines
Sun 12/215:50 pmSJU - HRL
2 stops27h 46mUnited Airlines
Deal found 12/2$853

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 December 4, 2025.

Round-trip from

$269
(United Airlines)

One-way from

$126
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$975
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. 5% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 4, 2025.
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 2/2

9:20 am-12:36 am

2 stops13h 16m

San Juan Luis Munoz Marin Intl

Fri 2/13

7:45 am-4:04 pm

1 stop10h 19m

$269

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 1/26

6:44 pm-12:27 pm

2 stops15h 43m

San Juan Luis Munoz Marin Intl

Thu 1/29

3:54 pm-11:21 pm

1 stop9h 27m

$301

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 1/26

9:20 am-12:36 am

2 stops13h 16m

San Juan Luis Munoz Marin Intl

Thu 1/29

8:10 am-8:01 pm

2 stops13h 51m

$329

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Sun 1/25

12:10 pm-9:26 pm

1 stop7h 16m

San Juan Luis Munoz Marin Intl

Thu 1/29

3:46 pm-9:59 pm

1 stop8h 13m

$329

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 2/2

6:44 pm-10:48 am

2 stops14h 04m

San Juan Luis Munoz Marin Intl

Fri 2/13

8:15 am-10:52 pm

2 stops16h 37m

$355

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 6/1

9:45 am-8:38 pm

1 stop9h 53m

San Juan Luis Munoz Marin Intl

Fri 6/5

1:05 am-3:34 pm

2 stops15h 29m

$369

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 4/20

7:54 pm-4:00 am

1 stop7h 06m

San Juan Luis Munoz Marin Intl

Fri 4/24

3:20 pm-11:59 pm

1 stop9h 39m

$391

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Sat 3/28

8:06 pm-5:28 am

1 stop8h 22m

San Juan Luis Munoz Marin Intl

Wed 4/1

6:00 am-10:53 pm

2 stops17h 53m

$437

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Thu 1/8

6:44 pm-1:41 pm

2 stops16h 57m

$126

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Thu 1/8

5:25 pm-9:26 pm

1 stop26h 01m

$351

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 12 results
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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, January is the cheapest month in which you can book a flight from Harlingen, Texas to San Juan (average of $239). 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.

What is the cheapest time of day to fly from HRL to SJU?

Find hourly flight availability from Harlingen to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.

A simple way to save on the total cost of your ticket is to fly from Harlingen, Texas to San Juan in the evening. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the morning.

How much does it cost to fly round-trip from Harlingen, Texas to San Juan?

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 December 4, 2025.
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
4,250 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

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
4,250 reviews
Southwest
8.0
Very good
4,250 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

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
9,066 reviews
Southwest
8.0
Very good
4,250 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

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
11,047 reviews
Southwest
8.0
Very good
4,250 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

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 13h 16m. 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 American Airlines. Our recent data shows that you can find tickets from as low as $306 on this airline. Additional options worth looking into are United Airlines and Southwest, starting at $309 and $378 round-trip. American Airlines is currently priced 49% 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, January is the cheapest month in which you can book a flight from Harlingen, Texas to San Juan (average of $239). 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.

See more FAQs

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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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$306Average$645FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$309Average$500FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$378Average$549FlexibilityNo cancel feeOn-time63%

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