HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Luis Munoz Marin Intl

$305+ Cheap flights from Harlingen, TX (HRL) to Luis Munoz Marin Intl (SJU)

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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — SJU
Apr 13 — Apr 201
Mon 4/13
Mon 4/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Harlingen to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl

Cheapest flights from Harlingen to Luis Munoz Marin Intl
Explore the most affordable flight options available from Harlingen to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 14, 2026.

This United Airlines deal was found by Cheapflights users on 3/10. 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 4/1312:05 pm
HRL
-
SJU
1 stop7h 33m
United Airlines
Tue 4/211:00 am
SJU
-
HRL
2 stops16h 04m
United Airlines
Deal found 3/10$343
This United Airlines deal was found by Cheapflights users on 3/10. 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 10/235:15 am
HRL
-
SJU
1 stop9h 27m
United Airlines
Tue 10/272:46 pm
SJU
-
HRL
1 stop7h 58m
United Airlines
Deal found 3/10$347
This American Airlines deal was found by Cheapflights users on 3/10. 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 5/112:51 pm
HRL
-
SJU
2 stops19h 02m
American Airlines
Thu 5/1411:59 pm
SJU
-
HRL
1 stop11h 18m
American Airlines
Deal found 3/10$384
This American Airlines deal was found by Cheapflights users on 3/9. 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 5/258:04 pm
HRL
-
SJU
1 stop7h 21m
American Airlines
Mon 6/112:44 am
SJU
-
HRL
1 stop10h 29m
American Airlines
Deal found 3/9$390
This Southwest deal was found by Cheapflights users on 3/10. 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.
Mon 4/1310:40 am
HRL
-
SJU
2 stops11h 45m
Southwest
Wed 4/222:00 pm
SJU
-
HRL
2 stops9h 00m
Southwest
Deal found 3/10$400
This American Airlines deal was found by Cheapflights users on 3/9. 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 5/112:51 pm
HRL
-
SJU
2 stops19h 02m
American Airlines
Sat 5/165:45 am
SJU
-
HRL
2 stops18h 06m
American Airlines
Deal found 3/9$409
This American Airlines deal was found by Cheapflights users on 3/10. 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 4/88:03 pm
HRL
-
SJU
1 stop7h 29m
American Airlines
Wed 4/157:00 pm
SJU
-
HRL
2 stops16h 17m
American Airlines
Deal found 3/10$429
This Southwest deal was found by Cheapflights users on 3/10. 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.
Mon 5/1110:40 am
HRL
-
SJU
2 stops11h 45m
Southwest
Thu 5/142:00 pm
SJU
-
HRL
2 stops10h 00m
Southwest
Deal found 3/10$445
This American Airlines deal was found by Cheapflights users on 3/10. 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 4/172:47 pm
HRL
-
SJU
2 stops17h 24m
American Airlines
Thu 4/236:45 am
SJU
-
HRL
1 stop17h 06m
American Airlines
Deal found 3/10$449
This Southwest deal was found by Cheapflights users on 3/11. 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.
Mon 7/611:35 am
HRL
-
SJU
2 stops11h 00m
Southwest
Fri 7/106:00 am
SJU
-
HRL
1 stop13h 00m
Southwest
Deal found 3/11$450

Find flight deals from Harlingen to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Harlingen (HRL) to Luis Munoz Marin Intl (SJU). 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 March 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$343
(United Airlines)

One-way from

$305
(Southwest)

Popular in

October

Cheapest in

February

Average price

$696
Provider with most accurate pricing for Harlingen Valley Intl-San Juan Luis Munoz Marin Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Harlingen Valley Intl-San Juan Luis Munoz Marin Intl flights.
Search Deals
From Harlingen Valley Intl to San Juan Luis Munoz Marin Intl
Search Deals
One-way flight from Harlingen Valley Intl to San Juan Luis Munoz Marin Intl
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($150 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 March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harlingen to Luis Munoz Marin Intl 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 March 14, 2026.
Use the filters below to find and compare flights from Harlingen to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 5/11

10:40 am-11:25 pm

2 stops11h 45m

San Juan Luis Munoz Marin Intl

Thu 5/14

2:00 pm-11:00 pm

2 stops10h 00m

$445

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Fri 4/17

10:40 am-11:25 pm

2 stops11h 45m

San Juan Luis Munoz Marin Intl

Thu 4/23

5:05 am-4:15 pm

2 stops12h 10m

$477

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 7/6

11:35 am-11:35 pm

2 stops11h 00m

San Juan Luis Munoz Marin Intl

Fri 7/10

11:35 am-9:40 pm

2 stops11h 05m

$500

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Tue 4/28

9:20 am-11:50 pm

2 stops13h 30m

San Juan Luis Munoz Marin Intl

Thu 4/30

7:00 am-4:04 pm

1 stop10h 04m

$520
Quickest round-trip

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 6/15

1:00 pm-12:25 am

1 stop10h 25m

San Juan Luis Munoz Marin Intl

Sat 6/20

6:00 am-2:05 pm

2 stops9h 05m

$538

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Sun 3/29

5:30 am-5:40 pm

2 stops11h 10m

San Juan Luis Munoz Marin Intl

Thu 4/2

5:30 am-4:55 pm

2 stops12h 25m

$576
Cheapest one-way

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 3/23

10:50 am-11:35 pm

2 stops11h 45m

$305
Quickest one-way

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 3/23

12:10 pm-8:26 pm

1 stop7h 16m

$315

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/13

Sorted by cheapest first

Compare providers for flights from Harlingen to Luis Munoz Marin Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Harlingen to Luis Munoz Marin Intl in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Harlingen, Texas-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harlingen, Texas-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harlingen, Texas-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Harlingen, Texas-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Harlingen, Texas-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Harlingen to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport

What is the cheapest month to book a flight from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport (average of $240). Flying from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport in October is currently the most expensive (average of $449). 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 Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated March 14, 2026.
Read through reviews of airlines operating flights from Harlingen to San Juan Luis Munoz Marin Intl Airport, such as Southwest,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,317 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
Southwest
8.0
Very good
4,317 reviews
Southwest
8.0
Very good
4,317 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
United Airlines
7.4
Good
9,423 reviews
Southwest
8.0
Very good
4,317 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
American Airlines
7.1
Good
11,464 reviews
Southwest
8.0
Very good
4,317 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Related info for your journey

Find useful and relevant information for your journey from Harlingen to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl?

    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 Luis Munoz Marin Intl. 3 airlines have flights from Valley Intl to San Juan Luis Munoz Marin Intl on a regular basis. Booking flights from Harlingen Valley Intl to San Juan Luis Munoz Marin Intl should not be difficult; the airport handles an average of 0 outbound flights to San Juan Luis Munoz Marin Intl per day.

  • How long is the flight from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport?

    A quick flight from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport can take about 11h 45m. Southwest provides one of the quickest options available for as low as $445. The distance from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport is about 2086 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport round-trip?

    Currently priced at $260, United Airlines will fly you from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Southwest - these airlines can fly you to your destination from $306 and $378, respectively. Users have found that United Airlines is 59% cheaper than the other options available to this destination.

  • Can I find deals for flights from Harlingen to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Harlingen to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Harlingen to Luis Munoz Marin Intl?

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

  • Can I find deals for business class flights from Harlingen to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Harlingen to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport (average of $240). Flying from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport in October is currently the most expensive (average of $449). 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

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Fajardo
Dorado
Luquillo
Rio Grande
Humacao
Bayamón

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 Luis Munoz Marin Intl

Discover the top 3 airlines that operate flights from Harlingen to Luis Munoz Marin Intl. 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 March 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$260Average$445FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$306Average$645FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$378Average$549FlexibilityNo 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.