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Cheap flights from Harlingen to Puerto Rico from $175

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 to Puerto Rico departing on 9/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Harlingen to Puerto Rico

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:47 pm - 12:09 pmHRL  Harlingen Valley Intl-SJU San Juan Luis Munoz Marin Intl
19h 22m2 stops Dallas/Fort Worth Miami
American Airlines Logo
6:55 pm - 10:13 amSJU  San Juan Luis Munoz Marin Intl-HRL Harlingen Valley Intl
17h 18m2 stops Miami Dallas/Fort Worth
$350American Airlines
Mon, Nov 9 - Fri, Nov 13
American Airlines Logo
5:40 am - 12:16 amHRL  Harlingen Valley Intl-SJU San Juan Luis Munoz Marin Intl
16h 36m1 stop Dallas/Fort Worth
American Airlines Logo
6:28 am - 10:59 pmSJU  San Juan Luis Munoz Marin Intl-HRL Harlingen Valley Intl
18h 31m1 stop Dallas/Fort Worth
$350American Airlines
Mon, Nov 9 - Fri, Nov 13
American Airlines Logo
5:50 am - 3:23 pmHRL  Harlingen Valley Intl-SJU San Juan Luis Munoz Marin Intl
8h 33m1 stop Dallas/Fort Worth
American Airlines Logo
6:28 am - 2:17 pmSJU  San Juan Luis Munoz Marin Intl-HRL Harlingen Valley Intl
9h 49m1 stop Dallas/Fort Worth
$350American Airlines
Tue, Oct 27 - Wed, Nov 4
American Airlines Logo
2:47 pm - 12:16 amHRL  Harlingen Valley Intl-SJU San Juan Luis Munoz Marin Intl
7h 29m1 stop Dallas/Fort Worth
American Airlines Logo
6:55 pm - 10:13 amSJU  San Juan Luis Munoz Marin Intl-HRL Harlingen Valley Intl
17h 18m2 stops Miami Dallas/Fort Worth
$350American Airlines
Mon, Nov 9 - Fri, Nov 13
United Airlines Logo
5:05 am - 3:36 pmHRL  Harlingen Valley Intl-SJU San Juan Luis Munoz Marin Intl
9h 31m1 stop Houston George Bush Intcntl
United Airlines Logo
7:40 am - 4:01 pmSJU  San Juan Luis Munoz Marin Intl-HRL Harlingen Valley Intl
10h 21m1 stop Houston George Bush Intcntl
$378United Airlines
Tue, Oct 27 - Wed, Nov 4
United Airlines Logo
5:05 am - 4:36 pmHRL  Harlingen Valley Intl-SJU San Juan Luis Munoz Marin Intl
9h 31m1 stop Houston George Bush Intcntl
United Airlines Logo
8:05 am - 7:47 pmSJU  San Juan Luis Munoz Marin Intl-HRL Harlingen Valley Intl
13h 42m2 stops Washington, D.C. Dulles Intl Houston George Bush Intcntl
$378United Airlines
Mon, Nov 2 - Wed, Nov 4
United Airlines Logo
5:05 am - 4:36 pmHRL  Harlingen Valley Intl-SJU San Juan Luis Munoz Marin Intl
9h 31m1 stop Houston George Bush Intcntl
United Airlines Logo
7:40 am - 1:21 pmSJU  San Juan Luis Munoz Marin Intl-HRL Harlingen Valley Intl
7h 41m1 stop Houston George Bush Intcntl
$378United Airlines
Mon, Nov 2 - Wed, Nov 4
Southwest Logo
12:55 pm - 9:55 pmHRL  Harlingen Valley Intl-SJU San Juan Luis Munoz Marin Intl
8h 00m2 stops Houston Hobby Orlando
Southwest Logo
6:35 am - 4:05 pmSJU  San Juan Luis Munoz Marin Intl-HRL Harlingen Valley Intl
11h 30m2 stops Baltimore/Washington Houston Hobby
$443Southwest
Thu, Oct 29 - Sun, Nov 1
Southwest Logo
5:35 am - 5:10 pmHRL  Harlingen Valley Intl-SJU San Juan Luis Munoz Marin Intl
9h 35m1 stop Houston Hobby
Southwest Logo
12:15 pm - 8:35 pmSJU  San Juan Luis Munoz Marin Intl-HRL Harlingen Valley Intl
10h 20m2 stops Orlando Austin Bergstrom
$491Southwest
Sat, Jan 2 - Tue, Feb 2
Southwest Logo
12:35 pm - 10:05 pmHRL  Harlingen Valley Intl-SJU San Juan Luis Munoz Marin Intl
8h 30m2 stops Houston Hobby Orlando
Southwest Logo
2:35 pm - 10:40 pmSJU  San Juan Luis Munoz Marin Intl-HRL Harlingen Valley Intl
9h 05m2 stops Orlando Houston Hobby
$536Southwest
Tue, Sep 8 - Mon, Sep 14

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United Airlines flights from Harlingen to Puerto Rico

Our best United Airlines deals on Harlingen to Puerto Rico flight tickets
United Airlines
Oct 27
HRL5:05 amHarlingen Valley Intl
9h 31m
1 stop
SJU3:36 pmSan Juan Luis Munoz Marin Intl
Nov 4
SJU7:40 amSan Juan Luis Munoz Marin Intl
10h 21m
1 stop
HRL4:01 pmHarlingen Valley Intl
$378
United Airlines
Sep 29
HRL7:15 amHarlingen Valley Intl
7h 27m
1 stop
SJU3:42 pmSan Juan Luis Munoz Marin Intl
Sep 30
SJU1:00 amSan Juan Luis Munoz Marin Intl
15h 59m
2 stops
HRL3:59 pmHarlingen Valley Intl
$443
United Airlines
Sep 29
HRL7:15 amHarlingen Valley Intl
7h 27m
1 stop
SJU3:42 pmSan Juan Luis Munoz Marin Intl
Oct 1
SJU7:00 amSan Juan Luis Munoz Marin Intl
9h 59m
1 stop
HRL3:59 pmHarlingen Valley Intl
$497

American Airlines flights from Harlingen to Puerto Rico

Our best American Airlines deals on Harlingen to Puerto Rico flight tickets
American Airlines
Oct 27
HRL5:50 amHarlingen Valley Intl
8h 33m
1 stop
SJU3:23 pmSan Juan Luis Munoz Marin Intl
Nov 4
SJU6:28 amSan Juan Luis Munoz Marin Intl
18h 31m
1 stop
HRL10:59 pmHarlingen Valley Intl
$350
American Airlines
Oct 29
HRL6:42 pmHarlingen Valley Intl
19h 56m
2 stops
SJU3:38 pmSan Juan Luis Munoz Marin Intl
Nov 1
SJU6:28 amSan Juan Luis Munoz Marin Intl
9h 49m
1 stop
HRL2:17 pmHarlingen Valley Intl
$429
American Airlines
Nov 24
HRL2:47 pmHarlingen Valley Intl
17h 54m
2 stops
SJU10:41 amSan Juan Luis Munoz Marin Intl
Dec 1
SJU6:55 pmSan Juan Luis Munoz Marin Intl
16h 43m
2 stops
HRL9:38 amHarlingen Valley Intl
$454

momondo Fare Finder

 
Customize your flight search to find flights from Harlingen 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 August 7, 2026.
Use the filters below to find and compare flights from Harlingen to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarlingenSan Juan

HRL Harlingen Valley Intl - SJU San Juan Luis Munoz Marin Intl

HRLSJU

Harlingen Valley Intl

Mon 11/9

2:47 pm-12:09 pm

2 stops19h 22m

San Juan Luis Munoz Marin Intl

Fri 11/13

6:55 pm-10:13 am

2 stops17h 18m

$350

HarlingenSan Juan

HRL Harlingen Valley Intl - SJU San Juan Luis Munoz Marin Intl

HRLSJU

Harlingen Valley Intl

Mon 11/9

5:40 am-12:16 am

1 stop16h 36m

San Juan Luis Munoz Marin Intl

Fri 11/13

6:28 am-10:59 pm

1 stop18h 31m

$350

HarlingenSan Juan

HRL Harlingen Valley Intl - SJU San Juan Luis Munoz Marin Intl

HRLSJU

Harlingen Valley Intl

Tue 10/27

5:50 am-3:23 pm

1 stop8h 33m

San Juan Luis Munoz Marin Intl

Wed 11/4

6:28 am-2:17 pm

1 stop9h 49m

$350

HarlingenSan Juan

HRL Harlingen Valley Intl - SJU San Juan Luis Munoz Marin Intl

HRLSJU

Harlingen Valley Intl

Mon 11/9

2:47 pm-12:16 am

1 stop7h 29m

San Juan Luis Munoz Marin Intl

Fri 11/13

6:55 pm-10:13 am

2 stops17h 18m

$350

HarlingenSan Juan

HRL Harlingen Valley Intl - SJU San Juan Luis Munoz Marin Intl

HRLSJU

Harlingen Valley Intl

Tue 10/27

5:05 am-3:36 pm

1 stop9h 31m

San Juan Luis Munoz Marin Intl

Wed 11/4

7:40 am-4:01 pm

1 stop10h 21m

$378

HarlingenSan Juan

HRL Harlingen Valley Intl - SJU San Juan Luis Munoz Marin Intl

HRLSJU

Harlingen Valley Intl

Mon 11/2

5:05 am-4:36 pm

1 stop9h 31m

San Juan Luis Munoz Marin Intl

Wed 11/4

8:05 am-7:47 pm

2 stops13h 42m

$378
Quickest round-trip

HarlingenSan Juan

HRL Harlingen Valley Intl - SJU San Juan Luis Munoz Marin Intl

HRLSJU

Harlingen Valley Intl

Mon 11/2

5:05 am-4:36 pm

1 stop9h 31m

San Juan Luis Munoz Marin Intl

Wed 11/4

7:40 am-1:21 pm

1 stop7h 41m

$378

HarlingenSan Juan

HRL Harlingen Valley Intl - SJU San Juan Luis Munoz Marin Intl

HRLSJU

Harlingen Valley Intl

Thu 10/29

12:55 pm-9:55 pm

2 stops8h 00m

San Juan Luis Munoz Marin Intl

Sun 11/1

6:35 am-4:05 pm

2 stops11h 30m

$443

HarlingenSan Juan

HRL Harlingen Valley Intl - SJU San Juan Luis Munoz Marin Intl

HRLSJU

Harlingen Valley Intl

Sat 1/2

5:35 am-5:10 pm

1 stop9h 35m

San Juan Luis Munoz Marin Intl

Tue 2/2

12:15 pm-8:35 pm

2 stops10h 20m

$491

HarlingenSan Juan

HRL Harlingen Valley Intl - SJU San Juan Luis Munoz Marin Intl

HRLSJU

Harlingen Valley Intl

Tue 9/8

12:35 pm-10:05 pm

2 stops8h 30m

San Juan Luis Munoz Marin Intl

Mon 9/14

2:35 pm-10:40 pm

2 stops9h 05m

$536

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Puerto Rico from

How to get the cheapest flight ticket from Harlingen 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 month to fly to Puerto Rico?

If you don’t want to visit Puerto Rico in May, then you should wait until February to fly from Harlingen, when ticket prices are also cheap, with an average price of $347.

Cheap Harlingen to Puerto Rico flight deals and tips

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

Fastest flight time

7h 16m

Direct flights

None
The fastest flight from Harlingen to Puerto Rico takes 7h 16m
There are no direct flights from Harlingen to Puerto Rico. There are no popular flight routes from Harlingen to Puerto Rico.
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Frequently asked questions about flying from Harlingen to Puerto Rico

  • 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 to Puerto Rico

Compare and see reviews for airlines that fly from Harlingen to Puerto Rico with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $239Free CancellationRating
7.4
10,077 reviews
Search United Airlines flights
American AirlinesPriceFrom $306Free CancellationRating
7.1
11,877 reviews
Search American Airlines flights
SouthwestPriceFrom $429Free CancellationRating
8.0
4,218 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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