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Cheap flights from Harlingen, Texas to Puerto Rico from $120

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 1/20. 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.
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
$239United Airlines
Find Deal
Wed, Jan 21 - Tue, Jan 27
American Airlines Logo
10:05 am - 12:35 pmHRL-SJU
25h 30m2 stops
American Airlines Logo
3:50 pm - 11:32 amSJU-HRL
20h 42m2 stops
$301American Airlines
Find Deal
Tue, Apr 7 - Wed, Apr 8
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
$307United Airlines
Find Deal
Wed, Jan 21 - Mon, Jan 26
American Airlines Logo
11:06 am - 10:22 pmHRL-SJU
9h 16m1 stop
American Airlines Logo
5:51 pm - 10:36 amSJU-HRL
18h 45m2 stops
$355American Airlines
Find Deal
Tue, Jan 20 - Mon, Jan 26
United Airlines Logo
12:10 pm - 9:26 pmHRL-SJU
7h 16m1 stop
United Airlines Logo
3:46 pm - 9:59 pmSJU-HRL
8h 13m1 stop
$412United Airlines
Find Deal
Tue, Jan 20 - Mon, Jan 26
American Airlines Logo
10:05 am - 4:00 amHRL-SJU
16h 55m1 stop
American Airlines Logo
3:50 pm - 11:32 amSJU-HRL
20h 42m2 stops
$436American Airlines
Find Deal
Tue, Apr 7 - Wed, Apr 8
Southwest Logo
9:45 am - 10:25 pmHRL-SJU
10h 40m2 stops
Southwest Logo
3:00 pm - 10:50 pmSJU-HRL
9h 50m1 stop
$439Southwest
Find Deal
Fri, Feb 6 - Sat, Feb 14
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
$441American Airlines
Find Deal
Tue, Apr 7 - Wed, Apr 8
Southwest Logo
9:45 am - 10:25 pmHRL-SJU
10h 40m2 stops
Southwest Logo
6:55 am - 4:50 pmSJU-HRL
11h 55m2 stops
$465Southwest
Find Deal
Fri, Feb 6 - Sat, Feb 14
Sun Country Air Logo
11:55 am - 2:10 pmHRL-SJU
24h 15m1 stop
Sun Country Air Logo
3:14 pm - 10:47 amSJU-HRL
21h 33m1 stop
$872Sun Country Air
Find Deal
Fri, Dec 19 - Sun, Dec 21

American Airlines flights from Harlingen, Texas to Puerto Rico

Our best American Airlines deals on Harlingen, Texas to Puerto Rico flight tickets
American Airlines
Apr 7
HRL10:05 amHarlingen Valley Intl
25h 30m
2 stops
SJU12:35 pmSan Juan Luis Munoz Marin Intl
Apr 8
SJU3:50 pmSan Juan Luis Munoz Marin Intl
20h 42m
2 stops
HRL11:32 amHarlingen Valley Intl
$301
Find similar
American Airlines
Jan 20
HRL11:06 amHarlingen Valley Intl
9h 16m
1 stop
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Jan 26
SJU5:51 pmSan Juan Luis Munoz Marin Intl
18h 45m
2 stops
HRL10:36 amHarlingen Valley Intl
$355
Find similar
American Airlines
Apr 7
HRL10:05 amHarlingen Valley Intl
16h 55m
1 stop
SJU4:00 amSan Juan Luis Munoz Marin Intl
Apr 8
SJU3:50 pmSan Juan Luis Munoz Marin Intl
20h 42m
2 stops
HRL11:32 amHarlingen Valley Intl
$436
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 21
HRL9:20 amHarlingen Valley Intl
13h 16m
2 stops
SJU12:36 amSan Juan Luis Munoz Marin Intl
Jan 27
SJU8:10 amSan Juan Luis Munoz Marin Intl
13h 51m
2 stops
HRL8:01 pmHarlingen Valley Intl
$239
Find similar
United Airlines
Jan 21
HRL9:20 amHarlingen Valley Intl
13h 16m
2 stops
SJU12:36 amSan Juan Luis Munoz Marin Intl
Jan 26
SJU2:05 amSan Juan Luis Munoz Marin Intl
16h 01m
2 stops
HRL4:06 pmHarlingen Valley Intl
$307
Find similar
United Airlines
Jan 20
HRL12:10 pmHarlingen Valley Intl
7h 16m
1 stop
SJU9:26 pmSan Juan Luis Munoz Marin Intl
Jan 26
SJU3:46 pmSan Juan Luis Munoz Marin Intl
8h 13m
1 stop
HRL9:59 pmHarlingen Valley Intl
$412
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 October 14, 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

Wed 1/21

9:20 am-12:36 am

2 stops13h 16m

San Juan Luis Munoz Marin Intl

Tue 1/27

8:10 am-8:01 pm

2 stops13h 51m

$239

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Tue 4/7

10:05 am-12:35 pm

2 stops25h 30m

San Juan Luis Munoz Marin Intl

Wed 4/8

3:50 pm-11:32 am

2 stops20h 42m

$301

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Wed 1/21

9:20 am-12:36 am

2 stops13h 16m

San Juan Luis Munoz Marin Intl

Mon 1/26

2:05 am-4:06 pm

2 stops16h 01m

$307

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Tue 1/20

11:06 am-10:22 pm

1 stop9h 16m

San Juan Luis Munoz Marin Intl

Mon 1/26

5:51 pm-10:36 am

2 stops18h 45m

$355

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Tue 1/20

12:10 pm-9:26 pm

1 stop7h 16m

San Juan Luis Munoz Marin Intl

Mon 1/26

3:46 pm-9:59 pm

1 stop8h 13m

$412

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Tue 4/7

10:05 am-4:00 am

1 stop16h 55m

San Juan Luis Munoz Marin Intl

Wed 4/8

3:50 pm-11:32 am

2 stops20h 42m

$436

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Fri 2/6

9:45 am-10:25 pm

2 stops10h 40m

San Juan Luis Munoz Marin Intl

Sat 2/14

3:00 pm-10:50 pm

1 stop9h 50m

$439

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Tue 4/7

10:05 am-12:35 pm

2 stops25h 30m

San Juan Luis Munoz Marin Intl

Wed 4/8

3:50 pm-9:49 am

2 stops18h 59m

$441

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Fri 2/6

9:45 am-10:25 pm

2 stops10h 40m

San Juan Luis Munoz Marin Intl

Sat 2/14

6:55 am-4:50 pm

2 stops11h 55m

$465

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Fri 12/19

11:55 am-2:10 pm

1 stop24h 15m

San Juan Luis Munoz Marin Intl

Sun 12/21

3:14 pm-10:47 am

1 stop21h 33m

$872

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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

Direct flights

None
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 $294Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
United AirlinesPriceFrom $381Free CancellationRating
7.4
8,976 reviews
Search United Airlines flights
SouthwestPriceFrom $513Free CancellationRating
8.0
4,238 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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