HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Juan

$236+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — SJU
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Harlingen to San Juan with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 September 15, 2025.

Round-trip from

$455
(United Airlines)

One-way from

$236
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$483
From Harlingen Valley Intl to San Juan
Search Deals
One-way flight from Harlingen Valley Intl to San Juan
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find 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 September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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 10/145:00 amHRL - SJU
1 stop9h 42mUnited Airlines
Fri 10/171:05 amSJU - HRL
2 stops13h 14mUnited Airlines
Deal found 9/14$455
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Mon 10/65:00 amHRL - SJU
1 stop9h 42mUnited Airlines
Thu 10/91:05 amSJU - HRL
2 stops13h 14mUnited Airlines
Deal found 9/13$465
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/155:00 amHRL - SJU
1 stop14h 38mUnited Airlines
Fri 10/171:05 amSJU - HRL
2 stops13h 14mUnited Airlines
Deal found 9/14$519
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/215:00 amHRL - SJU
1 stop9h 42mUnited Airlines
Sun 11/28:30 amSJU - HRL
2 stops28h 29mUnited Airlines
Deal found 9/15$541
This American Airlines deal was found by Cheapflights users on 9/13. 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 10/36:35 pmHRL - SJU
1 stop18h 40mAmerican Airlines
Mon 10/67:00 pmSJU - HRL
2 stops15h 38mAmerican Airlines
Deal found 9/13$543
This American Airlines deal was found by Cheapflights users on 9/13. 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 10/66:20 pmHRL - SJU
2 stops17h 24mAmerican Airlines
Fri 10/107:00 pmSJU - HRL
2 stops15h 38mAmerican Airlines
Deal found 9/13$553
This Southwest deal was found by Cheapflights users on 9/15. 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.
Tue 10/217:30 amHRL - SJU
2 stops14h 15mSouthwest
Sun 11/27:40 amSJU - HRL
2 stops12h 10mSouthwest
Deal found 9/15$555
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/122:05 pmHRL - SJU
3 stops26h 25mUnited Airlines
Fri 10/171:05 amSJU - HRL
2 stops13h 14mUnited Airlines
Deal found 9/14$556
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/145:00 amHRL - SJU
1 stop9h 42mUnited Airlines
Wed 10/157:00 amSJU - HRL
1 stop13h 41mUnited Airlines
Deal found 9/14$561

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 September 15, 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 10/6

5:00 am-3:42 pm

1 stop9h 42m

San Juan Luis Munoz Marin Intl

Thu 10/9

1:05 am-1:19 pm

2 stops13h 14m

$465

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Wed 10/15

5:00 am-8:38 pm

1 stop14h 38m

San Juan Luis Munoz Marin Intl

Fri 10/17

1:05 am-1:19 pm

2 stops13h 14m

$519

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Tue 10/21

5:00 am-3:42 pm

1 stop9h 42m

San Juan Luis Munoz Marin Intl

Sun 11/2

8:30 am-10:59 am

2 stops28h 29m

$541

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 10/6

6:20 pm-12:44 pm

2 stops17h 24m

San Juan Luis Munoz Marin Intl

Fri 10/10

7:00 pm-9:38 am

2 stops15h 38m

$553

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Tue 10/21

7:30 am-10:45 pm

2 stops14h 15m

San Juan Luis Munoz Marin Intl

Sun 11/2

7:40 am-5:50 pm

2 stops12h 10m

$555

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Tue 10/14

5:00 am-3:42 pm

1 stop9h 42m

San Juan Luis Munoz Marin Intl

Wed 10/15

7:00 am-7:41 pm

1 stop13h 41m

$561

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Fri 10/3

5:45 am-11:37 pm

2 stops16h 52m

San Juan Luis Munoz Marin Intl

Mon 10/6

7:00 pm-9:38 am

2 stops15h 38m

$594

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Tue 10/14

5:25 am-3:54 pm

2 stops9h 29m

$236

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 10/13

6:20 pm-11:06 am

2 stops15h 46m

$272

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Thu 10/16

5:23 am-2:20 pm

1 stop7h 57m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 16 results
1
2

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, September is the cheapest month in which you can book a flight from Harlingen, Texas to San Juan (average of $254). Flying from Harlingen, Texas to San Juan in June is currently the most expensive (average of $339). 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 September 15, 2025.

A simple way to save on the total cost of your ticket is to fly from Harlingen, Texas to San Juan in the afternoon. If you’re flexible enough to do this you can expect to save up to 15% 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 September 15, 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
4,242 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 9h 42m. 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 $294 on this airline. Additional options worth looking into are United Airlines and Southwest, starting at $423 and $513 round-trip. American Airlines is currently priced 48% 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, September is the cheapest month in which you can book a flight from Harlingen, Texas to San Juan (average of $254). Flying from Harlingen, Texas to San Juan in June is currently the most expensive (average of $339). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Harlingen to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Luis Munoz Marin Intl flights
Hobby to Luis Munoz Marin Intl flights
George Bush Intcntl to Luis Munoz Marin Intl flights
Austin to Luis Munoz Marin Intl flights
Love Field to Luis Munoz Marin Intl flights
San Antonio to Luis Munoz Marin Intl flights
El Paso to Luis Munoz Marin Intl flights
Harlingen to Luis Munoz Marin Intl flights
McAllen to Luis Munoz Marin Intl flights
Lubbock to Luis Munoz Marin Intl flights
Killeen to Luis Munoz Marin Intl flights
Midland to Luis Munoz Marin Intl flights
George Bush Intcntl to Culebra flights
Brownsville to Luis Munoz Marin Intl flights
George Bush Intcntl to Vieques flights
Dallas/Fort Worth to Mayagüez flights
Dallas/Fort Worth to Aguadilla flights
Austin to Vieques flights
Hobby to Aguadilla flights
Austin to Aguadilla flights
Dallas/Fort Worth to Culebra flights
Corpus Christi to Luis Munoz Marin Intl flights
Austin to Ponce flights
Austin to Culebra flights
San Antonio to Culebra flights
Dallas/Fort Worth to Vieques flights
Austin to Mayagüez flights
El Paso to Aguadilla flights
San Antonio to Aguadilla flights
Waco to Luis Munoz Marin Intl flights

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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$294Average$534FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$423Average$622FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$513Average$589FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.