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Cheap flights from Harlingen, Texas to San Juan from $259

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen, Texas to San Juan departing on 12/8. 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 San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:00 am - 10:22 pmHRL-SJU
13h 22m2 stops
United Airlines Logo
8:30 am - 9:54 pmSJU-HRL
15h 24m2 stops
$259United Airlines
Find Deal
Mon, Dec 8 - Thu, Dec 11
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
$281United Airlines
Find Deal
Mon, Dec 8 - Wed, Dec 10
American Airlines Logo
10:04 am - 12:35 pmHRL-SJU
25h 31m2 stops
American Airlines Logo
3:45 pm - 11:35 amSJU-HRL
20h 50m2 stops
$301American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
United Airlines Logo
12:16 pm - 9:26 pmHRL-SJU
7h 10m1 stop
United Airlines Logo
7:45 am - 3:59 pmSJU-HRL
10h 14m1 stop
$303United Airlines
Find Deal
Mon, Dec 8 - Thu, Dec 11
United Airlines Logo
12:16 pm - 9:26 pmHRL-SJU
7h 10m1 stop
United Airlines Logo
2:05 am - 3:59 pmSJU-HRL
15h 54m2 stops
$325United Airlines
Find Deal
Mon, Dec 8 - Wed, Dec 10
American Airlines Logo
7:55 pm - 3:55 amHRL-SJU
7h 00m1 stop
American Airlines Logo
3:45 pm - 11:35 amSJU-HRL
20h 50m2 stops
$441American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
2:48 pm - 9:35 amHRL-SJU
16h 47m2 stops
American Airlines Logo
12:47 pm - 9:40 amSJU-HRL
22h 53m2 stops
$479American Airlines
Find Deal
Thu, Dec 18 - Wed, Dec 24
American Airlines Logo
8:11 pm - 5:34 amHRL-SJU
7h 23m1 stop
American Airlines Logo
12:47 pm - 9:40 amSJU-HRL
22h 53m2 stops
$552American Airlines
Find Deal
Fri, Dec 19 - Wed, Dec 24
American Airlines Logo
10:12 am - 11:22 pmHRL-SJU
11h 10m1 stop
American Airlines Logo
7:12 pm - 10:36 amSJU-HRL
17h 24m2 stops
$553American Airlines
Find Deal
Thu, Dec 25 - Mon, Jan 12
United Airlines Logo
9:20 am - 11:36 pmHRL-SJU
13h 16m2 stops
United Airlines Logo
2:46 pm - 9:56 pmSJU-HRL
8h 10m1 stop
$555United Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11

United Airlines flights from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport

Our best United Airlines deals on Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines
Dec 8
HRL7:00 amHarlingen Valley Intl
13h 22m
2 stops
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Dec 11
SJU8:30 amSan Juan Luis Munoz Marin Intl
15h 24m
2 stops
HRL9:54 pmHarlingen Valley Intl
$259
Find similar
United Airlines
Dec 8
HRL7:00 amHarlingen Valley Intl
13h 22m
2 stops
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Dec 10
SJU2:05 amSan Juan Luis Munoz Marin Intl
15h 54m
2 stops
HRL3:59 pmHarlingen Valley Intl
$281
Find similar
United Airlines
Dec 8
HRL12:16 pmHarlingen Valley Intl
7h 10m
1 stop
SJU9:26 pmSan Juan Luis Munoz Marin Intl
Dec 11
SJU7:45 amSan Juan Luis Munoz Marin Intl
10h 14m
1 stop
HRL3:59 pmHarlingen Valley Intl
$303
Find similar

American Airlines flights from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport

Our best American Airlines deals on Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport flight tickets
American Airlines
Mar 10
HRL10:04 amHarlingen Valley Intl
25h 31m
2 stops
SJU12:35 pmSan Juan Luis Munoz Marin Intl
Mar 11
SJU3:45 pmSan Juan Luis Munoz Marin Intl
20h 50m
2 stops
HRL11:35 amHarlingen Valley Intl
$301
Find similar
American Airlines
Mar 10
HRL7:55 pmHarlingen Valley Intl
7h 00m
1 stop
SJU3:55 amSan Juan Luis Munoz Marin Intl
Mar 11
SJU3:45 pmSan Juan Luis Munoz Marin Intl
20h 50m
2 stops
HRL11:35 amHarlingen Valley Intl
$441
Find similar
American Airlines
Dec 18
HRL2:48 pmHarlingen Valley Intl
16h 47m
2 stops
SJU9:35 amSan Juan Luis Munoz Marin Intl
Dec 24
SJU12:47 pmSan Juan Luis Munoz Marin Intl
22h 53m
2 stops
HRL9:40 amHarlingen Valley Intl
$479
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport 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 November 17, 2025.
Use the filters below to find and compare flights from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 12/8

7:00 am-10:22 pm

2 stops13h 22m

San Juan Luis Munoz Marin Intl

Thu 12/11

8:30 am-9:54 pm

2 stops15h 24m

$259

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 12/8

7:00 am-10:22 pm

2 stops13h 22m

San Juan Luis Munoz Marin Intl

Wed 12/10

2:05 am-3:59 pm

2 stops15h 54m

$281

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Tue 3/10

10:04 am-12:35 pm

2 stops25h 31m

San Juan Luis Munoz Marin Intl

Wed 3/11

3:45 pm-11:35 am

2 stops20h 50m

$301

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 12/8

12:16 pm-9:26 pm

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Thu 12/11

7:45 am-3:59 pm

1 stop10h 14m

$303

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Mon 12/8

12:16 pm-9:26 pm

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Wed 12/10

2:05 am-3:59 pm

2 stops15h 54m

$325

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Tue 3/10

7:55 pm-3:55 am

1 stop7h 00m

San Juan Luis Munoz Marin Intl

Wed 3/11

3:45 pm-11:35 am

2 stops20h 50m

$441

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Thu 12/18

2:48 pm-9:35 am

2 stops16h 47m

San Juan Luis Munoz Marin Intl

Wed 12/24

12:47 pm-9:40 am

2 stops22h 53m

$479

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Fri 12/19

8:11 pm-5:34 am

1 stop7h 23m

San Juan Luis Munoz Marin Intl

Wed 12/24

12:47 pm-9:40 am

2 stops22h 53m

$552

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Thu 12/25

10:12 am-11:22 pm

1 stop11h 10m

San Juan Luis Munoz Marin Intl

Mon 1/12

7:12 pm-10:36 am

2 stops17h 24m

$553

HarlingenSan Juan

HRL - SJU

HRLSJU

Harlingen Valley Intl

Tue 3/10

9:20 am-11:36 pm

2 stops13h 16m

San Juan Luis Munoz Marin Intl

Wed 3/11

2:46 pm-9:56 pm

1 stop8h 10m

$555

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport

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 San Juan Luis Munoz Marin Intl Airport?

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport 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. On the other hand, Friday is the most expensive day to depart from Harlingen, Texas because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $626.

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is in the evening when flights can be purchased for as low as $537. Flights in the morning are often more expensive with an average ticket price of $626.

When to book flights from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport (HRL to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport

Direct flights

None
There are no direct flights from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport.
Search flight deals

  • How far is Harlingen Valley Intl to San Juan Luis Munoz Marin Intl by plane?

    The distance between Harlingen Valley Intl and San Juan Luis Munoz Marin Intl is about 2088.0 mi. In terms of flight time, this usually takes a little over 7h 00m.

  • When did momondo last update prices for flights from Harlingen Valley Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Harlingen Valley Intl Airport to San Juan Luis Munoz Marin Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Harlingen Valley Intl Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Harlingen Valley Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    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 San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The travel and health documents required for your trip to San Juan Luis Munoz Marin Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan Luis Munoz Marin Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Harlingen, Texas to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $306Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
United AirlinesPriceFrom $309Free CancellationRating
7.4
9,014 reviews
Search United Airlines flights
SouthwestPriceFrom $513Free CancellationRating
8.0
4,245 reviews
Search Southwest flights

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Caguas
Humacao
Rio Grande
Bayamón

Why use momondo?

Why should I use momondo to find a flight deal from Harlingen to San Juan?

Finding the right flight to San Juan from Harlingen is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Juan quick and easy, saving you time and money.

Can I find flights from Harlingen to San Juan with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Harlingen to San Juan flights to just show those with flexible booking policies.

How can momondo help me find flights from Harlingen to San Juan?

Once all potential Harlingen to San Juan 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 San Juan right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Harlingen to San Juan flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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