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Cheap flights from San Diego to Harlingen from $237

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Harlingen departing on 10/24. 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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Find the cheapest flights from San Diego to Harlingen

Cheap round-trip flights

Southwest Logo
2:00 pm - 11:30 pmSAN-HRL
7h 30m1 stop
Southwest Logo
6:00 pm - 10:05 pmHRL-SAN
6h 05m1 stop
$237Southwest
Find Deal
Fri, Oct 24 - Mon, Oct 27
United Airlines Logo
8:00 am - 4:13 pmSAN-HRL
6h 13m1 stop
United Airlines Logo
2:05 pm - 12:15 amHRL-SAN
12h 10m2 stops
$253United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
American Airlines Logo
3:14 pm - 11:04 pmSAN-HRL
5h 50m1 stop
American Airlines Logo
6:37 pm - 10:28 pmHRL-SAN
5h 51m1 stop
$258American Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
United Airlines Logo
6:15 am - 4:13 pmSAN-HRL
7h 58m1 stop
United Airlines Logo
2:05 pm - 10:44 pmHRL-SAN
10h 39m2 stops
$302United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
United Airlines Logo
12:07 pm - 9:54 pmSAN-HRL
7h 47m1 stop
United Airlines Logo
5:00 pm - 9:53 pmHRL-SAN
6h 53m1 stop
$307United Airlines
Find Deal
Wed, Nov 12 - Sun, Nov 16
Southwest Logo
1:55 pm - 10:35 pmSAN-HRL
6h 40m2 stops
Southwest Logo
6:40 am - 12:45 pmHRL-SAN
8h 05m2 stops
$322Southwest
Find Deal
Tue, Oct 14 - Tue, Oct 21
Southwest Logo
2:00 pm - 10:35 pmSAN-HRL
6h 35m2 stops
Southwest Logo
6:00 pm - 10:05 pmHRL-SAN
6h 05m1 stop
$328Southwest
Find Deal
Fri, Oct 24 - Mon, Oct 27
American Airlines Logo
6:30 am - 6:10 pmSAN-HRL
9h 40m2 stops
American Airlines Logo
8:04 pm - 11:56 pmHRL-SAN
5h 52m1 stop
$379American Airlines
Find Deal
Wed, Nov 12 - Sun, Nov 16
United Airlines Logo
6:45 am - 9:54 pmSAN-HRL
13h 09m2 stops
United Airlines Logo
5:00 pm - 9:53 pmHRL-SAN
6h 53m1 stop
$402United Airlines
Find Deal
Wed, Nov 12 - Sun, Nov 16
American Airlines Logo
6:15 am - 6:05 pmSAN-HRL
9h 50m2 stops
American Airlines Logo
2:50 pm - 8:00 pmHRL-SAN
7h 10m2 stops
$409American Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21

United Airlines flights from San Diego to Harlingen, Texas

Our best United Airlines deals on San Diego to Harlingen, Texas flight tickets
United Airlines
Oct 14
SAN8:00 amSan Diego
6h 13m
1 stop
HRL4:13 pmHarlingen Valley Intl
Oct 21
HRL2:05 pmHarlingen Valley Intl
12h 10m
2 stops
SAN12:15 amSan Diego
$253
Find similar
United Airlines
Oct 14
SAN6:15 amSan Diego
7h 58m
1 stop
HRL4:13 pmHarlingen Valley Intl
Oct 21
HRL2:05 pmHarlingen Valley Intl
10h 39m
2 stops
SAN10:44 pmSan Diego
$302
Find similar
United Airlines
Nov 12
SAN12:07 pmSan Diego
7h 47m
1 stop
HRL9:54 pmHarlingen Valley Intl
Nov 16
HRL5:00 pmHarlingen Valley Intl
6h 53m
1 stop
SAN9:53 pmSan Diego
$307
Find similar

Southwest flights from San Diego to Harlingen, Texas

Our best Southwest deals on San Diego to Harlingen, Texas flight tickets
Southwest
Oct 24
SAN2:00 pmSan Diego
7h 30m
1 stop
HRL11:30 pmHarlingen Valley Intl
Oct 27
HRL6:00 pmHarlingen Valley Intl
6h 05m
1 stop
SAN10:05 pmSan Diego
$237
Find similar
Southwest
Oct 14
SAN1:55 pmSan Diego
6h 40m
2 stops
HRL10:35 pmHarlingen Valley Intl
Oct 21
HRL6:40 amHarlingen Valley Intl
8h 05m
2 stops
SAN12:45 pmSan Diego
$322
Find similar
Southwest
Oct 24
SAN2:00 pmSan Diego
6h 35m
2 stops
HRL10:35 pmHarlingen Valley Intl
Oct 27
HRL6:00 pmHarlingen Valley Intl
6h 05m
1 stop
SAN10:05 pmSan Diego
$328
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Diego to Harlingen, Texas 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 September 17, 2025.
Use the filters below to find and compare flights from San Diego to Harlingen, Texas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Fri 10/24

2:00 pm-11:30 pm

1 stop7h 30m

Harlingen Valley Intl

Mon 10/27

6:00 pm-10:05 pm

1 stop6h 05m

$237

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 10/14

8:00 am-4:13 pm

1 stop6h 13m

Harlingen Valley Intl

Tue 10/21

2:05 pm-12:15 am

2 stops12h 10m

$253

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 10/14

3:14 pm-11:04 pm

1 stop5h 50m

Harlingen Valley Intl

Tue 10/21

6:37 pm-10:28 pm

1 stop5h 51m

$258

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 10/14

6:15 am-4:13 pm

1 stop7h 58m

Harlingen Valley Intl

Tue 10/21

2:05 pm-10:44 pm

2 stops10h 39m

$302

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Wed 11/12

12:07 pm-9:54 pm

1 stop7h 47m

Harlingen Valley Intl

Sun 11/16

5:00 pm-9:53 pm

1 stop6h 53m

$307

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 10/14

1:55 pm-10:35 pm

2 stops6h 40m

Harlingen Valley Intl

Tue 10/21

6:40 am-12:45 pm

2 stops8h 05m

$322

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Fri 10/24

2:00 pm-10:35 pm

2 stops6h 35m

Harlingen Valley Intl

Mon 10/27

6:00 pm-10:05 pm

1 stop6h 05m

$328

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Wed 11/12

6:30 am-6:10 pm

2 stops9h 40m

Harlingen Valley Intl

Sun 11/16

8:04 pm-11:56 pm

1 stop5h 52m

$379

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Wed 11/12

6:45 am-9:54 pm

2 stops13h 09m

Harlingen Valley Intl

Sun 11/16

5:00 pm-9:53 pm

1 stop6h 53m

$402

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 10/14

6:15 am-6:05 pm

2 stops9h 50m

Harlingen Valley Intl

Tue 10/21

2:50 pm-8:00 pm

2 stops7h 10m

$409

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Harlingen from

How to get the cheapest flight ticket from San Diego to Harlingen, Texas

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 Harlingen, Texas?

The cheapest day to depart on your flight to Harlingen, Texas is on a Thursday when prices can be found for as low as $339. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from San Diego to Harlingen, Texas for around $656.

What is the cheapest time of day to depart on your flight to Harlingen, Texas?

Our most recent data shows that the best time of day to fly to Harlingen, Texas is in the evening. Flights from San Diego to Harlingen, Texas during this time can be as low as $354. Flights at noon are often more expensive with an average ticket price of $443.

When to book flights from San Diego to Harlingen, Texas

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

Cheap San Diego to Harlingen, Texas (SAN to HRL) flight deals and tips

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

Direct flights

None
There are no direct flights from San Diego to Harlingen, Texas. There are no popular flight routes from San Diego to Harlingen, Texas.
Search flight deals

  • How far is San Diego to Harlingen Valley Intl by plane?

    The distance between San Diego and Harlingen Valley Intl is about 1251.3 mi. By plane, this route typically takes 5h 50m.

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

    Prices for flights from San Diego Airport to Harlingen Valley Intl Airport were last updated today.

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

  • How old do you have to be to fly from San Diego Airport to Harlingen Valley Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Harlingen Valley Intl Airport.

  • What documentation or ID do you need to fly to Harlingen Valley Intl Airport?

    The required travel and health documents for your Harlingen Valley Intl Airport 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 Harlingen Valley Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from San Diego to Harlingen, Texas?

Best airlines flying from San Diego to Harlingen, Texas

Compare and see reviews for airlines that fly from San Diego to Harlingen, Texas with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $240Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
American AirlinesPriceFrom $262Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

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

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 Harlingen from San Diego.

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

Yes. All flights to Harlingen from San Diego on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for San Diego to Harlingen flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for San Diego to Harlingen 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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