$236 Find Cheap Flights from Harlingen to Puerto Rico

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Harlingen to Puerto Rico departing on 10/14. 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

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Flight Deals

Book Cheap Harlingen to Puerto Rico Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Harlingen to Puerto Rico 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 Puerto Rico

Tue, Oct 14 - Fri, Oct 17
United Airlines Logo
5:00 am - 3:42 pmHRL-SJU
9h 42m1 stop
United Airlines Logo
1:05 am - 1:19 pmSJU-HRL
13h 14m2 stops
$455United Airlines
Find Deal
Sun, Nov 9 - Sat, Nov 15
American Airlines Logo
8:04 pm - 4:06 pmHRL-SJU
18h 02m2 stops
American Airlines Logo
7:15 am - 3:32 pmSJU-HRL
10h 17m1 stop
$471American Airlines
Find Deal
Sun, Nov 9 - Fri, Nov 14
United Airlines Logo
7:00 am - 10:22 pmHRL-SJU
13h 22m2 stops
United Airlines Logo
2:05 am - 3:59 pmSJU-HRL
15h 54m2 stops
$485United Airlines
Find Deal
Wed, Feb 4 - Sun, Feb 8
American Airlines Logo
10:15 am - 10:14 pmHRL-SJU
9h 59m1 stop
American Airlines Logo
6:45 am - 10:21 pmSJU-HRL
17h 36m1 stop
$507American Airlines
Find Deal
Wed, Oct 15 - Fri, Oct 17
United Airlines Logo
5:00 am - 8:38 pmHRL-SJU
14h 38m1 stop
United Airlines Logo
1:05 am - 1:19 pmSJU-HRL
13h 14m2 stops
$519United Airlines
Find Deal
Sun, Nov 9 - Fri, Nov 14
United Airlines Logo
12:10 pm - 9:26 pmHRL-SJU
7h 16m1 stop
United Airlines Logo
2:05 am - 3:59 pmSJU-HRL
15h 54m2 stops
$523United Airlines
Find Deal
Wed, Feb 4 - Sun, Feb 8
Southwest Logo
7:35 am - 8:55 pmHRL-SJU
11h 20m2 stops
Southwest Logo
6:10 am - 5:05 pmSJU-HRL
12h 55m2 stops
$535Southwest
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Tue, Oct 21 - Sun, Nov 2
United Airlines Logo
5:00 am - 3:42 pmHRL-SJU
9h 42m1 stop
United Airlines Logo
8:30 am - 10:59 amSJU-HRL
28h 29m2 stops
$541United Airlines
Find Deal
Tue, Oct 21 - Sun, Nov 2
Southwest Logo
7:30 am - 10:45 pmHRL-SJU
14h 15m2 stops
Southwest Logo
7:40 am - 5:50 pmSJU-HRL
12h 10m2 stops
$555Southwest
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
$684Sun Country Air
Find Deal
Booking Insights

KAYAK's insights & trends for Harlingen to Puerto Rico flights

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

What’s the cheapest day of the week to fly from Harlingen to Puerto Rico?

The average price of all round-trip flights from Harlingen to Puerto Rico clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Puerto Rico on a Wednesday and more expensive on a Friday. On your return trip to Harlingen, you should consider flying back on a Sunday, and avoid Saturdays for better deals.

Good to know

Cheapest flight$236
Most popular time to fly with an average 9% increase in price.
Flight from Harlingen to San Juan

FAQs - booking Puerto Rico flights

  • How does KAYAK find such low prices on flights from Harlingen to Puerto Rico?

    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 Puerto Rico.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Harlingen to Puerto Rico 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 Puerto Rico?

    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 from Harlingen to Puerto Rico with an airline and back with another airline.

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

    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 from Harlingen to Puerto Rico up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Puerto Rico?

    The cheapest time of day to fly to Puerto Rico is generally at night, when round-trip flights cost $537 on average. Morning departures are around 10% more expensive than evening flights, on average. The most expensive time of day to fly to Puerto Rico is generally in the morning, which is peak travel time and where the average cost of a ticket is $626.

Reviews of the top 3 airlines serving from Harlingen to Puerto Rico

 
Need help choosing which airline to fly with from Harlingen to Puerto Rico? 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 4242 reviews
8.0Comfort
7.5Entertainment
8.6Crew
8.1Boarding
7.0Food
Airline reviews

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

10.0 ExcellentG, Sep 2025LAS - ATL
Read more Southwest reviews

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

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

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 late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

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

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Our bags took a long time to get unloaded once we landed.

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.

Everything you need to know for your flight from Harlingen to Puerto Rico

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