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Cheap flights from San Diego to Harlingen from $185

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Harlingen departing on 3/11. 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
0 bags

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Find the cheapest flights from San Diego to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
1:05 pm - 10:15 pm
SAN
-
HRL
7h 10m
1 stop
Southwest Logo
6:00 pm - 10:20 pm
HRL
-
SAN
6h 20m
1 stop
$409Southwest
Thu, Feb 19 - Sun, Feb 22
Southwest Logo
1:05 pm - 10:15 pm
SAN
-
HRL
7h 10m
1 stop
Southwest Logo
7:00 am - 6:00 pm
HRL
-
SAN
13h 00m
2 stops
$435Southwest
Thu, Feb 19 - Sun, Feb 22
Southwest Logo
1:05 pm - 10:15 pm
SAN
-
HRL
7h 10m
1 stop
Southwest Logo
9:45 am - 3:55 pm
HRL
-
SAN
8h 10m
2 stops
$449Southwest
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
12:16 pm - 9:59 pm
SAN
-
HRL
7h 43m
1 stop
United Airlines Logo
12:10 pm - 4:38 pm
HRL
-
SAN
6h 28m
1 stop
$454United Airlines
Tue, Feb 24 - Wed, Feb 25
United Airlines Logo
12:16 pm - 9:59 pm
SAN
-
HRL
7h 43m
1 stop
United Airlines Logo
9:20 am - 5:40 pm
HRL
-
SAN
10h 20m
2 stops
$458United Airlines
Tue, Feb 24 - Wed, Feb 25
United Airlines Logo
1:45 pm - 9:59 pm
SAN
-
HRL
6h 14m
1 stop
United Airlines Logo
9:20 am - 5:40 pm
HRL
-
SAN
10h 20m
2 stops
$459United Airlines
Tue, Feb 24 - Wed, Feb 25
United Airlines Logo
9:00 am - 9:59 pm
SAN
-
HRL
10h 59m
2 stops
United Airlines Logo
9:20 am - 5:40 pm
HRL
-
SAN
10h 20m
2 stops
$464United Airlines
Tue, Feb 24 - Wed, Feb 25
Southwest Logo
11:20 am - 9:35 pm
SAN
-
HRL
8h 15m
2 stops
Southwest Logo
7:00 am - 6:00 pm
HRL
-
SAN
13h 00m
2 stops
$475Southwest
Thu, Feb 19 - Sun, Feb 22
American Airlines Logo
8:00 am - 6:16 pm
SAN
-
HRL
8h 16m
1 stop
American Airlines Logo
6:46 pm - 10:30 pm
HRL
-
SAN
5h 44m
1 stop
$489American Airlines
Tue, Feb 17 - Mon, Feb 23
United Airlines Logo
1:45 pm - 9:59 pm
SAN
-
HRL
6h 14m
1 stop
United Airlines Logo
9:20 am - 5:40 pm
HRL
-
SAN
10h 20m
2 stops
$493United Airlines
Tue, Feb 24 - Wed, Feb 25

United Airlines flights from San Diego to Harlingen, Texas

Our best United Airlines deals on San Diego to Harlingen, Texas flight tickets
United Airlines
Apr 9
SAN12:10 pmSan Diego
7h 49m
1 stop
HRL9:59 pmHarlingen Valley Intl
Apr 15
HRL12:05 pmHarlingen Valley Intl
12h 33m
2 stops
SAN10:38 pmSan Diego
$329
United Airlines
Jun 26
SAN6:15 amSan Diego
7h 19m
1 stop
HRL3:34 pmHarlingen Valley Intl
Jul 8
HRL2:00 pmHarlingen Valley Intl
7h 50m
1 stop
SAN7:50 pmSan Diego
$349
United Airlines
Jun 26
SAN6:15 amSan Diego
7h 19m
1 stop
HRL3:34 pmHarlingen Valley Intl
Jul 4
HRL2:00 pmHarlingen Valley Intl
11h 59m
2 stops
SAN11:59 pmSan Diego
$354

American Airlines flights from San Diego to Harlingen, Texas

Our best American Airlines deals on San Diego to Harlingen, Texas flight tickets
American Airlines
Apr 9
SAN11:01 amSan Diego
6h 21m
1 stop
HRL7:22 pmHarlingen Valley Intl
Apr 15
HRL8:03 pmHarlingen Valley Intl
5h 53m
1 stop
SAN11:56 pmSan Diego
$318
American Airlines
Jul 1
SAN7:15 pmSan Diego
13h 00m
2 stops
HRL10:15 amHarlingen Valley Intl
Jul 3
HRL4:56 pmHarlingen Valley Intl
7h 45m
1 stop
SAN10:41 pmSan Diego
$404
American Airlines
Feb 17
SAN8:00 amSan Diego
8h 16m
1 stop
HRL6:16 pmHarlingen Valley Intl
Feb 23
HRL6:46 pmHarlingen Valley Intl
5h 44m
1 stop
SAN10:30 pmSan Diego
$489

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 February 12, 2026.
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

Thu 2/19

1:05 pm-10:15 pm

1 stop7h 10m

Harlingen Valley Intl

Sun 2/22

6:00 pm-10:20 pm

1 stop6h 20m

$409

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Thu 2/19

1:05 pm-10:15 pm

1 stop7h 10m

Harlingen Valley Intl

Sun 2/22

7:00 am-6:00 pm

2 stops13h 00m

$435

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Thu 2/19

1:05 pm-10:15 pm

1 stop7h 10m

Harlingen Valley Intl

Mon 2/23

9:45 am-3:55 pm

2 stops8h 10m

$449

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 2/24

12:16 pm-9:59 pm

1 stop7h 43m

Harlingen Valley Intl

Wed 2/25

12:10 pm-4:38 pm

1 stop6h 28m

$454

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 2/24

12:16 pm-9:59 pm

1 stop7h 43m

Harlingen Valley Intl

Wed 2/25

9:20 am-5:40 pm

2 stops10h 20m

$458

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 2/24

1:45 pm-9:59 pm

1 stop6h 14m

Harlingen Valley Intl

Wed 2/25

9:20 am-5:40 pm

2 stops10h 20m

$459

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 2/24

9:00 am-9:59 pm

2 stops10h 59m

Harlingen Valley Intl

Wed 2/25

9:20 am-5:40 pm

2 stops10h 20m

$464

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Thu 2/19

11:20 am-9:35 pm

2 stops8h 15m

Harlingen Valley Intl

Sun 2/22

7:00 am-6:00 pm

2 stops13h 00m

$475

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 2/17

8:00 am-6:16 pm

1 stop8h 16m

Harlingen Valley Intl

Mon 2/23

6:46 pm-10:30 pm

1 stop5h 44m

$489

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 2/24

1:45 pm-9:59 pm

1 stop6h 14m

Harlingen Valley Intl

Wed 2/25

9:20 am-5:40 pm

2 stops10h 20m

$493

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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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 airline that flies from San Diego to Harlingen Valley Intl?

United Airlines and Southwest are the most popular carriers operating from San Diego to Harlingen Valley Intl

What airlines fly to Harlingen, Texas?

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Harlingen, Texas from San Diego according to our data. American Airlines is the first choice among our users, with 78% of people opting to fly with this airline when traveling to Harlingen, Texas. Keep in mind that there are 3 different airlines that fly to Harlingen, Texas on a routine basis, so you have a few additional options to choose from.

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

Fastest flight time

6h 03m

Direct flights

None
The fastest flight from San Diego to Harlingen, Texas takes 6h 03m
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 6h 03m.

  • 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
4,280 reviews
Search Southwest flights
American AirlinesPriceFrom $262Free CancellationRating
7.2
11,271 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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