HRL - SJU

$345 Find Cheap Flights from Harlingen to San Juan

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Harlingen to Luis Munoz Marin Intl departing on 10/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Juan Luis Munoz Marin Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Harlingen to San Juan, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Harlingen to San Juan, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Harlingen to San Juan (HRL-SJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Harlingen to San Juan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Harlingen to Luis Munoz Marin Intl

Sat, Oct 4 - Sat, Oct 11
American Airlines Logo
6:35 pm - 12:47 pmHRL-SJU
17h 12m2 stops
American Airlines Logo
5:00 pm - 9:36 amSJU-HRL
17h 36m2 stops
$345American Airlines
Find Deal
Sat, Oct 4 - Fri, Oct 10
United Airlines Logo
7:00 am - 11:57 pmHRL-SJU
15h 57m2 stops
United Airlines Logo
1:05 am - 1:19 pmSJU-HRL
13h 14m2 stops
$426United Airlines
Find Deal
Sat, Sep 13 - Thu, Sep 18
American Airlines Logo
6:35 pm - 11:11 amHRL-SJU
15h 36m2 stops
American Airlines Logo
1:37 pm - 9:41 amSJU-HRL
21h 04m2 stops
$478American Airlines
Find Deal
Tue, Sep 9 - Fri, Sep 12
United Airlines Logo
7:00 am - 11:57 pmHRL-SJU
15h 57m2 stops
United Airlines Logo
1:05 am - 4:02 pmSJU-HRL
15h 57m2 stops
$493United Airlines
Find Deal
Tue, Sep 9 - Fri, Sep 12
United Airlines Logo
5:00 am - 3:42 pmHRL-SJU
9h 42m1 stop
United Airlines Logo
1:05 am - 4:02 pmSJU-HRL
15h 57m2 stops
$543United Airlines
Find Deal
Tue, Sep 9 - Sat, Sep 13
Southwest Logo
11:15 am - 10:45 pmHRL-SJU
10h 30m2 stops
Southwest Logo
7:45 am - 8:35 pmSJU-HRL
13h 50m2 stops
$545Southwest
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Tue, Sep 9 - Fri, Sep 12
United Airlines Logo
7:00 am - 11:57 pmHRL-SJU
15h 57m2 stops
United Airlines Logo
1:05 am - 1:30 pmSJU-HRL
13h 25m2 stops
$555United Airlines
Find Deal
Fri, Sep 12 - Sun, Sep 14
Southwest Logo
1:40 pm - 11:50 pmHRL-SJU
9h 10m2 stops
Southwest Logo
2:10 pm - 11:35 pmSJU-HRL
10h 25m2 stops
$865Southwest
Find Deal
Thu, Dec 18 - Sun, Dec 21
Sun Country Air Logo
11:49 am - 1:52 pmHRL-SJU
24h 03m1 stop
Sun Country Air Logo
3:14 pm - 10:47 amSJU-HRL
21h 33m1 stop
$921Sun Country Air
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Sat, Dec 27 - Fri, Jan 2
Sun Country Air Logo
9:55 am - 2:10 pmHRL-SJU
26h 15m1 stop
Sun Country Air Logo
5:14 pm - 10:02 amSJU-HRL
18h 48m1 stop
$1,044Sun Country Air
Find Deal
Booking Insights

KAYAK's insights & trends for Harlingen to Luis Munoz Marin Intl flights

Get data-powered insights and trends into flights from Harlingen to Luis Munoz Marin Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport?

What’s the cheapest day of the week to fly from Harlingen to San Juan?

The average price of all round-trip flights from Harlingen to San Juan Luis Munoz Marin Intl Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to San Juan on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Harlingen to San Juan. For your return ticket, we recommend flying on a Sunday and avoiding Saturdays for the best deals.

Good to know

Cheapest flight$345
Most popular time to fly with an average 12% increase in price.
Flight from Harlingen to San Juan

When to book flights from Harlingen to Luis Munoz Marin Intl

Are your dates flexible? Find out the best times to travel from Harlingen to Luis Munoz Marin Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Harlingen to San Juan flights

  • What is the cheapest flight from Harlingen to San Juan Luis Munoz Marin Intl Airport?

    In the last 3 days, the lowest price for a flight from Harlingen to San Juan Luis Munoz Marin Intl Airport was $355 for a one-way ticket and $345 for a round-trip.

  • Do I need a passport to fly between Harlingen and San Juan?

    A passport is required to fly from Harlingen to San Juan.

  • Which aircraft models fly most regularly from Harlingen to San Juan?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Harlingen to San Juan?

    Star Alliance, and oneworld are the airline alliances operating flights between Harlingen and San Juan, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Harlingen to San Juan, Southwest or United Airlines?

    The two airlines most popular with KAYAK users for flights from Harlingen to San Juan are Southwest and United Airlines. With an average price for the route of $589 and an overall rating of 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $637 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Harlingen to San Juan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Harlingen to San Juan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Harlingen to San Juan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Harlingen is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Harlingen to San Juan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Juan with an airline and back to Harlingen with another airline. Booking your flights between Harlingen and SJU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Harlingen to San Juan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Juan from Harlingen up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Harlingen to Luis Munoz Marin Intl

 
See real verified KAYAK customer reviews for airlines flying from Harlingen to San Juan. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Harlingen to Luis Munoz Marin Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4241 reviews
7.0Food
8.0Comfort
8.6Crew
7.5Entertainment
8.1Boarding
Airline reviews

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

2.0 MediocreMike, Aug 2025AUS - BWI
Read more Southwest reviews

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

Plz don't take away free bags and free seating

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed and missed my connection Lufthansa didn’t respond.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

A little bit more leg room in premium economy. I am 6’4”.

Overall it was good. I missed my connection but I was put on another flight.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

Gate agent did not hold flight for connection, provided no assistance to get new flight

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

My Internet did not work for Outlook email or basically anything. I paid for one hour of in-flight usage and it was terrible. I spent a lot of time on different sites and browsers with no luck and a lot of frustration. Other than that, the flight was on time, crew was nice, service was fine. Seat was OK even though I paid for the extra 6 inches. I cannot imagine how tight the seats in the back must be.

Delayed flight that lead to a missed connection and a 5-hour trip became a 12-hour flight 🙄

No issues. They did change our gate FOUR times in about 30 minutes which was mildly annoying but the flight was fine.

Great flight. No issues at all. I still think boarding could be more efficient but otherwise, a good experience.

Crew should be nicer and emphatic with customers. Same cookies as the past 20 years. Seat are ok and the plane was clean though it was delayed.

Very poor delay in dfw was really bad n long

Because of rescheduling, they had to put me on a flight that didn't go through Dallas

The plane was broken so we had to change planes.

The flight got delayed 2.5 hrs due to a maintenance issue that cause a domino effect. American should have spare planes for when something like this happens.

Everything you need to know for your flight from Harlingen to Luis Munoz Marin Intl

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