HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Puerto Rico

$250+ Cheap flights from Harlingen (HRL) to Puerto Rico

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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — SJU
May 28 — Jun 41
Thu 5/28
Thu 6/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Harlingen to Puerto Rico 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 Puerto Rico

Cheapest flights from Harlingen to Puerto Rico
Explore the most affordable flight options available from Harlingen to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2026.

This United Airlines deal was found by Cheapflights users on 4/26. 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 8/205:15 am
HRL
-
SJU
1 stop9h 27m
United Airlines
Tue 8/252:20 pm
SJU
-
HRL
1 stop8h 24m
United Airlines
Deal found 4/26$311
This American Airlines deal was found by Cheapflights users on 4/28. 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 8/208:03 pm
HRL
-
SJU
2 stops17h 35m
American Airlines
Tue 8/254:53 pm
SJU
-
HRL
2 stops18h 11m
American Airlines
Deal found 4/28$330
This American Airlines deal was found by Cheapflights users on 4/23. 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 8/68:03 pm
HRL
-
SJU
2 stops17h 35m
American Airlines
Fri 8/146:00 am
SJU
-
HRL
2 stops17h 54m
American Airlines
Deal found 4/23$407
This American Airlines deal was found by Cheapflights users on 4/27. 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 12/96:10 pm
HRL
-
SJU
1 stop9h 09m
American Airlines
Wed 1/205:51 pm
SJU
-
HRL
2 stops18h 45m
American Airlines
Deal found 4/27$415
This American Airlines deal was found by Cheapflights users on 4/25. 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 12/76:10 pm
HRL
-
SJU
1 stop9h 09m
American Airlines
Mon 12/147:00 am
SJU
-
HRL
1 stop14h 30m
American Airlines
Deal found 4/25$490
This American Airlines deal was found by Cheapflights users on 4/27. 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 5/1110:47 am
HRL
-
SJU
1 stop11h 16m
American Airlines
Thu 5/146:45 am
SJU
-
HRL
1 stop8h 36m
American Airlines
Deal found 4/27$556

Find flight deals from Harlingen to Puerto Rico

Keep the following information in mind while searching for Harlingen to Puerto Rico flight deals. Data was last updated April 28, 2026.

Round-trip from

$311
(United Airlines)

One-way from

$250
(American Airlines)

Popular in

October

Cheapest in

February

Average price

$740
From Harlingen Valley Intl to Puerto Rico
Search Deals
One-way flight from Harlingen Valley Intl to Puerto Rico
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($137 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 April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harlingen to Puerto Rico 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 April 28, 2026.
Use the filters below to find and compare flights from Harlingen to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Thu 8/20

5:15 am-3:42 pm

1 stop9h 27m

San Juan Luis Munoz Marin Intl

Tue 8/25

2:20 pm-9:44 pm

1 stop8h 24m

$311

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 5/11

6:00 am-9:24 pm

2 stops14h 24m

San Juan Luis Munoz Marin Intl

Mon 5/18

5:45 am-10:51 pm

2 stops18h 06m

$596

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 7/20

8:04 pm-3:47 pm

2 stops18h 43m

San Juan Luis Munoz Marin Intl

Thu 7/23

12:58 am-4:21 pm

1 stop16h 23m

$603

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Fri 7/10

5:00 pm-11:04 am

2 stops17h 04m

San Juan Luis Munoz Marin Intl

Mon 7/13

12:58 am-10:12 am

1 stop10h 14m

$636

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Sat 5/9

12:05 pm-8:38 pm

1 stop7h 33m

San Juan Luis Munoz Marin Intl

Wed 5/13

7:20 am-8:00 pm

2 stops13h 40m

$646
Quickest round-trip

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Thu 8/6

7:20 am-3:42 pm

1 stop7h 22m

San Juan Luis Munoz Marin Intl

Fri 8/14

7:00 am-3:34 pm

1 stop9h 34m

$646

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Fri 6/5

4:57 pm-9:39 am

2 stops15h 42m

San Juan Luis Munoz Marin Intl

Wed 6/10

6:01 am-7:34 pm

2 stops14h 33m

$676
Cheapest one-way

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 5/4

2:47 pm-9:13 am

2 stops17h 26m

$323
Quickest one-way

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Tue 6/23

2:10 pm-12:45 am

2 stops9h 35m

$358

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Wed 10/21

1:59 pm-5:38 pm

3 stops26h 39m

$388

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/26

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Best time to book a flight from Harlingen to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico 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 Puerto Rico

What is the cheapest month to book a flight from Harlingen to Puerto Rico?

Currently, January is the cheapest month in which you can book a flight from Harlingen to Puerto Rico (average of $239). Flying from Harlingen to Puerto Rico in October is currently the most expensive (average of $1,032). 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 Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated April 28, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andAmerican Airlines from Harlingen to Puerto Rico by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,314 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,314 reviews
Southwest
8.0
Very good
4,314 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,672 reviews
Southwest
8.0
Very good
4,314 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,677 reviews
Southwest
8.0
Very good
4,314 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Harlingen to Puerto Rico. 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 Puerto Rico?

    Harlingen Valley Intl (HRL) is the airport you will fly out of if you book a flight from Harlingen to Puerto Rico. It is only a 3.7 mi journey to Valley Intl (HRL) from Harlingen’s city center.

  • How long is the flight from Harlingen to Puerto Rico?

    United Airlines and American Airlines can get you from Harlingen to Puerto Rico in just under 9h 27m. Your travel time can differ by up to 4h 57m. Harlingen and Puerto Rico are separated by a distance of 2086 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Harlingen to Puerto Rico that include hotel bookings?

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

  • How can I find direct flights from Harlingen to Puerto Rico?

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

  • Can I find deals for business class flights from Harlingen to Puerto Rico?

    Yes. Cheapflights offers flight deals from Harlingen to Puerto Rico 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 to Puerto Rico?

    Currently, January is the cheapest month in which you can book a flight from Harlingen to Puerto Rico (average of $239). Flying from Harlingen to Puerto Rico in October is currently the most expensive (average of $1,032). 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.

Top 3 airlines flying from Harlingen to Puerto Rico

Discover the top 3 airlines that operate flights from Harlingen to Puerto Rico. 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 April 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$260Average$445FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$306Average$645FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$513Average$548FlexibilityNo 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.