$120 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 2/21. 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, 0 bags

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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, Apr 7 - Wed, Apr 8
American Airlines Logo
10:05 am - 2:35 pmHRL-SJU
27h 30m2 stops
American Airlines Logo
6:55 pm - 11:32 amSJU-HRL
17h 37m2 stops
$301American Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
Southwest Logo
11:30 am - 12:35 amHRL-SJU
11h 05m2 stops
Southwest Logo
2:05 pm - 9:05 pmSJU-HRL
9h 00m2 stops
$327Southwest
Find Deal
Fri, Jan 23 - Mon, Jan 26
United Airlines Logo
9:20 am - 12:36 amHRL-SJU
13h 16m2 stops
United Airlines Logo
7:45 am - 4:06 pmSJU-HRL
10h 21m1 stop
$368United Airlines
Find Deal
Tue, Apr 7 - Wed, Apr 8
American Airlines Logo
4:14 pm - 11:00 amHRL-SJU
17h 46m2 stops
American Airlines Logo
3:20 pm - 11:59 pmSJU-HRL
9h 39m1 stop
$436American Airlines
Find Deal
Tue, Apr 7 - Wed, Apr 8
American Airlines Logo
10:05 am - 11:00 amHRL-SJU
23h 55m2 stops
American Airlines Logo
3:20 pm - 11:59 pmSJU-HRL
9h 39m1 stop
$441American Airlines
Find Deal
Tue, Apr 7 - Wed, Apr 8
United Airlines Logo
5:15 am - 3:40 pmHRL-SJU
9h 25m1 stop
United Airlines Logo
2:55 pm - 9:44 pmSJU-HRL
7h 49m1 stop
$467United Airlines
Find Deal
Fri, Jan 23 - Mon, Jan 26
American Airlines Logo
6:02 am - 11:59 pmHRL-SJU
15h 57m2 stops
American Airlines Logo
5:51 pm - 10:36 amSJU-HRL
18h 45m2 stops
$471American Airlines
Find Deal
Tue, Apr 7 - Wed, Apr 8
American Airlines Logo
10:05 am - 12:35 pmHRL-SJU
25h 30m2 stops
American Airlines Logo
3:50 pm - 9:49 amSJU-HRL
18h 59m2 stops
$477American Airlines
Find Deal
Fri, Jan 23 - Sun, Jan 25
United Airlines Logo
9:20 am - 12:36 amHRL-SJU
13h 16m2 stops
United Airlines Logo
2:05 am - 4:06 pmSJU-HRL
16h 01m2 stops
$539United Airlines
Find Deal
Mon, Dec 29 - Fri, Jan 2
Sun Country Air Logo
11:13 am - 4:13 pmHRL-SJU
27h 00m1 stop
Sun Country Air Logo
5:14 pm - 10:02 amSJU-HRL
18h 48m1 stop
$996Sun 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$120
Most popular time to fly with an average 7% increase in price.
Flight from Harlingen to San Juan Airport

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 4240 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.0Food
7.5Entertainment
Airline reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

8.0 ExcellentGreg, Oct 2025OAK - BUR
Read more Southwest reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

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.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

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.

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

The only thing to like was that we eventually got to our destination

Poor seat in rear of aircraft Food at Admiral’s Club Terminal D at DFW inedible

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

We were delayed for a “couple of maintenance issues.” They were resolved rather quickly but a computer glitch caused someone in the airport to have to bring a physical copy of the paperwork so we could leave. I don’t know where they had to drive from to get to our plane but it took forever & we were 1 1/2 hrs late in leaving. The flight itself was fine.

We didn't take off until an hour after we boarded.

The flight was fine. This survey is not. There is no option for N/A so items which don’t apply to my experience still must be rated. In those instances I give a “3” rating which ultimately skews the results.

The actual trip was fine, however, the changes made to our flights and the layovers were had to endure were awful.

Flight from Dallas to OKC was good, but my trip was interrupted due to a delayed flight from Austin to DFW, which happens all the time. I frequently miss my connection from DFW and American can never seem to make this work!

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

Information on your arrival and departure airports

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