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Cheap flights from San Diego to Harlingen from $108

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 12/2. 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 San Diego to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
10:25 am - 7:36 pmSAN-HRL
7h 11m1 stop
United Airlines Logo
12:10 pm - 6:36 pmHRL-SAN
8h 26m1 stop
$259United Airlines
Find Deal
Thu, Dec 25 - Fri, Jan 9
United Airlines Logo
10:25 am - 7:36 pmSAN-HRL
7h 11m1 stop
United Airlines Logo
9:20 am - 5:28 pmHRL-SAN
10h 08m2 stops
$264United Airlines
Find Deal
Thu, Dec 25 - Fri, Jan 9
American Airlines Logo
2:59 pm - 11:59 pmSAN-HRL
7h 00m1 stop
American Airlines Logo
7:54 pm - 11:41 pmHRL-SAN
5h 47m1 stop
$368American Airlines
Find Deal
Tue, Apr 7 - Wed, Apr 8
United Airlines Logo
11:12 am - 9:59 pmSAN-HRL
8h 47m2 stops
United Airlines Logo
9:20 am - 5:28 pmHRL-SAN
10h 08m2 stops
$371United Airlines
Find Deal
Thu, Dec 25 - Fri, Jan 9
American Airlines Logo
1:27 pm - 11:59 pmSAN-HRL
8h 32m2 stops
American Airlines Logo
7:54 pm - 11:41 pmHRL-SAN
5h 47m1 stop
$373American Airlines
Find Deal
Tue, Apr 7 - Wed, Apr 8
Southwest Logo
11:35 am - 11:55 pmSAN-HRL
10h 20m2 stops
Southwest Logo
12:15 pm - 6:30 pmHRL-SAN
8h 15m1 stop
$387Southwest
Find Deal
Sat, Dec 20 - Fri, Jan 9
Southwest Logo
11:35 am - 11:55 pmSAN-HRL
10h 20m2 stops
Southwest Logo
12:15 pm - 5:15 pmHRL-SAN
7h 00m2 stops
$392Southwest
Find Deal
Sat, Dec 20 - Fri, Jan 9
Multiple Airlines Logo
6:02 pm - 10:53 amSAN-HRL
14h 51m1 stop
Multiple Airlines Logo
10:55 am - 7:15 pmHRL-SAN
34h 20m2 stops
$465Multiple Airlines
Find Deal
Thu, Dec 18 - Tue, Dec 30
Multiple Airlines Logo
6:02 pm - 10:53 amSAN-HRL
14h 51m1 stop
Multiple Airlines Logo
11:13 am - 12:11 pmHRL-SAN
26h 58m2 stops
$504Multiple Airlines
Find Deal
Thu, Dec 18 - Mon, Dec 29
Sun Country Air Logo
5:44 pm - 10:41 amSAN-HRL
14h 57m1 stop
Sun Country Air Logo
10:55 am - 4:44 pmHRL-SAN
31h 49m1 stop
$623Sun Country Air
Find Deal
Sat, Dec 20 - Tue, Dec 30

United Airlines flights from San Diego to Harlingen, Texas

Our best United Airlines deals on San Diego to Harlingen, Texas flight tickets
United Airlines
Dec 25
SAN10:25 amSan Diego
7h 11m
1 stop
HRL7:36 pmHarlingen Valley Intl
Jan 9
HRL12:10 pmHarlingen Valley Intl
8h 26m
1 stop
SAN6:36 pmSan Diego
$259
Find similar
United Airlines
Dec 25
SAN10:25 amSan Diego
7h 11m
1 stop
HRL7:36 pmHarlingen Valley Intl
Jan 9
HRL9:20 amHarlingen Valley Intl
10h 08m
2 stops
SAN5:28 pmSan Diego
$264
Find similar
United Airlines
Dec 25
SAN11:12 amSan Diego
8h 47m
2 stops
HRL9:59 pmHarlingen Valley Intl
Jan 9
HRL9:20 amHarlingen Valley Intl
10h 08m
2 stops
SAN5:28 pmSan Diego
$371
Find similar

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 7
SAN2:59 pmSan Diego
7h 00m
1 stop
HRL11:59 pmHarlingen Valley Intl
Apr 8
HRL7:54 pmHarlingen Valley Intl
5h 47m
1 stop
SAN11:41 pmSan Diego
$368
Find similar
American Airlines
Apr 7
SAN1:27 pmSan Diego
8h 32m
2 stops
HRL11:59 pmHarlingen Valley Intl
Apr 8
HRL7:54 pmHarlingen Valley Intl
5h 47m
1 stop
SAN11:41 pmSan Diego
$373
Find similar
American Airlines
Nov 12
SAN8:25 amSan Diego
7h 45m
1 stop
HRL6:10 pmHarlingen Valley Intl
Nov 16
HRL12:11 pmHarlingen Valley Intl
7h 54m
1 stop
SAN6:05 pmSan Diego
$409
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 November 6, 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

Thu 12/25

10:25 am-7:36 pm

1 stop7h 11m

Harlingen Valley Intl

Fri 1/9

12:10 pm-6:36 pm

1 stop8h 26m

$259

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Thu 12/25

10:25 am-7:36 pm

1 stop7h 11m

Harlingen Valley Intl

Fri 1/9

9:20 am-5:28 pm

2 stops10h 08m

$264

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 4/7

2:59 pm-11:59 pm

1 stop7h 00m

Harlingen Valley Intl

Wed 4/8

7:54 pm-11:41 pm

1 stop5h 47m

$368

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Thu 12/25

11:12 am-9:59 pm

2 stops8h 47m

Harlingen Valley Intl

Fri 1/9

9:20 am-5:28 pm

2 stops10h 08m

$371

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 4/7

1:27 pm-11:59 pm

2 stops8h 32m

Harlingen Valley Intl

Wed 4/8

7:54 pm-11:41 pm

1 stop5h 47m

$373

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Sat 12/20

11:35 am-11:55 pm

2 stops10h 20m

Harlingen Valley Intl

Fri 1/9

12:15 pm-6:30 pm

1 stop8h 15m

$387

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Sat 12/20

11:35 am-11:55 pm

2 stops10h 20m

Harlingen Valley Intl

Fri 1/9

12:15 pm-5:15 pm

2 stops7h 00m

$392

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Thu 12/18

6:02 pm-10:53 am

1 stop14h 51m

Harlingen Valley Intl

Tue 12/30

10:55 am-7:15 pm

2 stops34h 20m

$465

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Thu 12/18

6:02 pm-10:53 am

1 stop14h 51m

Harlingen Valley Intl

Mon 12/29

11:13 am-12:11 pm

2 stops26h 58m

$504

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Sat 12/20

5:44 pm-10:41 am

1 stop14h 57m

Harlingen Valley Intl

Tue 12/30

10:55 am-4:44 pm

1 stop31h 49m

$623

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 typical price of a round-trip flight between San Diego and Harlingen, Texas?

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 25m.

  • 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
4,241 reviews
Search Southwest flights
American AirlinesPriceFrom $262Free CancellationRating
7.2
11,040 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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