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Cheap flights from Harlingen, Texas to Puerto Rico from $126

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen, Texas to Puerto Rico departing on 1/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Harlingen, Texas to Puerto Rico

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:44 pm - 12:27 pmHRL-SJU
15h 43m2 stops
American Airlines Logo
3:54 pm - 11:21 pmSJU-HRL
9h 27m1 stop
$301American Airlines
Find Deal
Mon, Jan 26 - Thu, Jan 29
United Airlines Logo
9:20 am - 12:36 amHRL-SJU
13h 16m2 stops
United Airlines Logo
8:10 am - 8:01 pmSJU-HRL
13h 51m2 stops
$329United Airlines
Find Deal
Mon, Jan 26 - Thu, Jan 29
United Airlines Logo
9:20 am - 12:36 amHRL-SJU
13h 16m2 stops
United Airlines Logo
8:10 am - 8:01 pmSJU-HRL
13h 51m2 stops
$369United Airlines
Find Deal
Mon, Jan 26 - Thu, Jan 29
American Airlines Logo
7:54 pm - 2:35 pmHRL-SJU
17h 41m2 stops
American Airlines Logo
3:20 pm - 11:59 pmSJU-HRL
9h 39m1 stop
$391American Airlines
Find Deal
Mon, Apr 20 - Fri, Apr 24
American Airlines Logo
8:06 pm - 5:28 amHRL-SJU
8h 22m1 stop
American Airlines Logo
6:00 am - 10:53 pmSJU-HRL
17h 53m2 stops
$437American Airlines
Find Deal
Sat, Mar 28 - Wed, Apr 1
American Airlines Logo
7:54 pm - 2:35 pmHRL-SJU
17h 41m2 stops
American Airlines Logo
3:20 pm - 11:59 pmSJU-HRL
9h 39m1 stop
$450American Airlines
Find Deal
Fri, May 8 - Sun, May 10
American Airlines Logo
8:11 pm - 3:48 pmHRL-SJU
17h 37m2 stops
American Airlines Logo
6:00 am - 11:21 pmSJU-HRL
19h 21m2 stops
$479American Airlines
Find Deal
Fri, Jan 2 - Fri, Jan 16
American Airlines Logo
7:54 pm - 2:35 pmHRL-SJU
17h 41m2 stops
American Airlines Logo
6:25 am - 11:59 pmSJU-HRL
18h 34m2 stops
$491American Airlines
Find Deal
Fri, May 8 - Sun, May 10
American Airlines Logo
4:14 pm - 4:00 amHRL-SJU
10h 46m1 stop
American Airlines Logo
6:59 am - 4:09 pmSJU-HRL
10h 10m1 stop
$507American Airlines
Find Deal
Mon, Apr 20 - Fri, Apr 24
American Airlines Logo
8:06 pm - 5:28 amHRL-SJU
8h 22m1 stop
American Airlines Logo
6:59 am - 11:59 pmSJU-HRL
18h 00m1 stop
$543American Airlines
Find Deal
Sat, Apr 4 - Sat, Apr 11

American Airlines flights from Harlingen, Texas to Puerto Rico

Our best American Airlines deals on Harlingen, Texas to Puerto Rico flight tickets
American Airlines
Jan 26
HRL6:44 pmHarlingen Valley Intl
15h 43m
2 stops
SJU12:27 pmSan Juan Luis Munoz Marin Intl
Jan 29
SJU3:54 pmSan Juan Luis Munoz Marin Intl
9h 27m
1 stop
HRL11:21 pmHarlingen Valley Intl
$301
Find similar
American Airlines
Apr 20
HRL7:54 pmHarlingen Valley Intl
17h 41m
2 stops
SJU2:35 pmSan Juan Luis Munoz Marin Intl
Apr 24
SJU3:20 pmSan Juan Luis Munoz Marin Intl
9h 39m
1 stop
HRL11:59 pmHarlingen Valley Intl
$391
Find similar
American Airlines
Mar 28
HRL8:06 pmHarlingen Valley Intl
8h 22m
1 stop
SJU5:28 amSan Juan Luis Munoz Marin Intl
Apr 1
SJU6:00 amSan Juan Luis Munoz Marin Intl
17h 53m
2 stops
HRL10:53 pmHarlingen Valley Intl
$437
Find similar

United Airlines flights from Harlingen, Texas to Puerto Rico

Our best United Airlines deals on Harlingen, Texas to Puerto Rico flight tickets
United Airlines
Jan 26
HRL9:20 amHarlingen Valley Intl
13h 16m
2 stops
SJU12:36 amSan Juan Luis Munoz Marin Intl
Jan 29
SJU8:10 amSan Juan Luis Munoz Marin Intl
13h 51m
2 stops
HRL8:01 pmHarlingen Valley Intl
$329
Find similar
United Airlines
Jan 26
HRL9:20 amHarlingen Valley Intl
13h 16m
2 stops
SJU12:36 amSan Juan Luis Munoz Marin Intl
Jan 29
SJU8:10 amSan Juan Luis Munoz Marin Intl
13h 51m
2 stops
HRL8:01 pmHarlingen Valley Intl
$369
Find similar
United Airlines
Feb 25
HRL9:20 amHarlingen Valley Intl
13h 16m
2 stops
SJU12:36 amSan Juan Luis Munoz Marin Intl
Feb 28
SJU2:05 amSan Juan Luis Munoz Marin Intl
15h 59m
2 stops
HRL4:04 pmHarlingen Valley Intl
$471
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Harlingen, Texas 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, momondo users made 832,500 searches. Data last updated December 2, 2025.
Use the filters below to find and compare flights from Harlingen, Texas to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 1/26

6:44 pm-12:27 pm

2 stops15h 43m

San Juan Luis Munoz Marin Intl

Thu 1/29

3:54 pm-11:21 pm

1 stop9h 27m

$301

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 1/26

9:20 am-12:36 am

2 stops13h 16m

San Juan Luis Munoz Marin Intl

Thu 1/29

8:10 am-8:01 pm

2 stops13h 51m

$329

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 1/26

9:20 am-12:36 am

2 stops13h 16m

San Juan Luis Munoz Marin Intl

Thu 1/29

8:10 am-8:01 pm

2 stops13h 51m

$369

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 4/20

7:54 pm-2:35 pm

2 stops17h 41m

San Juan Luis Munoz Marin Intl

Fri 4/24

3:20 pm-11:59 pm

1 stop9h 39m

$391

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Sat 3/28

8:06 pm-5:28 am

1 stop8h 22m

San Juan Luis Munoz Marin Intl

Wed 4/1

6:00 am-10:53 pm

2 stops17h 53m

$437

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Fri 5/8

7:54 pm-2:35 pm

2 stops17h 41m

San Juan Luis Munoz Marin Intl

Sun 5/10

3:20 pm-11:59 pm

1 stop9h 39m

$450

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Fri 1/2

8:11 pm-3:48 pm

2 stops17h 37m

San Juan Luis Munoz Marin Intl

Fri 1/16

6:00 am-11:21 pm

2 stops19h 21m

$479

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Fri 5/8

7:54 pm-2:35 pm

2 stops17h 41m

San Juan Luis Munoz Marin Intl

Sun 5/10

6:25 am-11:59 pm

2 stops18h 34m

$491

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 4/20

4:14 pm-4:00 am

1 stop10h 46m

San Juan Luis Munoz Marin Intl

Fri 4/24

6:59 am-4:09 pm

1 stop10h 10m

$507

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Sat 4/4

8:06 pm-5:28 am

1 stop8h 22m

San Juan Luis Munoz Marin Intl

Sat 4/11

6:59 am-11:59 pm

1 stop18h 00m

$543

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Puerto Rico from

How to get the cheapest flight ticket from Harlingen, Texas to Puerto Rico

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Puerto Rico?

On average, the least expensive day to fly to Puerto Rico from Harlingen, Texas is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $511. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Puerto Rico is Friday, with ticket prices averaging around $626.

What is the cheapest time of day to depart on your flight to Puerto Rico?

Our most recent data shows that the best time of day to fly to Puerto Rico is in the evening. Flights from Harlingen, Texas to Puerto Rico during this time can be as low as $537. In contrast, the most expensive time of day to depart to Puerto Rico is in the morning when prices are around $626.

Cheap Harlingen, Texas to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Harlingen, Texas to Puerto Rico

Fastest flight time

7h 11m

Direct flights

None
The fastest flight from Harlingen, Texas to Puerto Rico takes 7h 11m
There are no direct flights from Harlingen, Texas to Puerto Rico. There are no popular flight routes from Harlingen, Texas to Puerto Rico.
Search flight deals

  • When did momondo last update prices for flights from Harlingen Valley Intl Airport to Puerto Rico?

    Prices for flights from Harlingen Valley Intl Airport to Puerto Rico are refreshed on a daily basis.

  • How many operators does momondo search for flights from Harlingen Valley Intl Airport to Puerto Rico?

  • How old do you have to be to fly from Harlingen Valley Intl Airport to Puerto Rico?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Harlingen Valley Intl Airport to Puerto Rico.

  • What documentation or ID do you need to fly to Puerto Rico?

    The required travel and health documents for your Puerto Rico trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Puerto Rico. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Harlingen, Texas to Puerto Rico

Compare and see reviews for airlines that fly from Harlingen, Texas to Puerto Rico with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $306Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
United AirlinesPriceFrom $309Free CancellationRating
7.4
9,063 reviews
Search United Airlines flights
SouthwestPriceFrom $378Free CancellationRating
8.0
4,253 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Harlingen to Puerto Rico?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Puerto Rico from Harlingen.

Can I find flights from Harlingen to Puerto Rico with flexible booking policies on momondo?

All flight searches from Harlingen to Puerto Rico on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Harlingen to Puerto Rico?

Once all potential Harlingen to Puerto Rico flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Harlingen to Puerto Rico right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Harlingen to Puerto Rico flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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