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Cheap flights from San Diego to Harlingen from $240

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 8/13. 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

Find the cheapest flights from San Diego to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
6:30 am - 4:05 pmSAN  San Diego-HRL Harlingen Valley Intl
7h 35m1 stop Austin Bergstrom
Southwest Logo
1:45 pm - 4:55 pmHRL  Harlingen Valley Intl-SAN San Diego
5h 10m1 stop Austin Bergstrom
$392Southwest
Fri, Aug 21 - Tue, Aug 25
Southwest Logo
6:30 am - 5:15 pmSAN  San Diego-HRL Harlingen Valley Intl
8h 45m2 stops Austin Bergstrom Houston Hobby
Southwest Logo
5:40 pm - 8:45 pmHRL  Harlingen Valley Intl-SAN San Diego
5h 05m1 stop Austin Bergstrom
$397Southwest
Fri, Aug 21 - Tue, Aug 25
Southwest Logo
6:30 am - 5:15 pmSAN  San Diego-HRL Harlingen Valley Intl
8h 45m2 stops Austin Bergstrom Houston Hobby
Southwest Logo
3:25 pm - 8:55 pmHRL  Harlingen Valley Intl-SAN San Diego
7h 30m2 stops Dallas Love Field Phoenix Sky Harbor Intl
$402Southwest
Fri, Aug 21 - Tue, Aug 25
United Airlines Logo
8:00 am - 3:59 pmSAN  San Diego-HRL Harlingen Valley Intl
5h 59m1 stop Houston George Bush Intcntl
United Airlines Logo
5:18 pm - 9:25 pmHRL  Harlingen Valley Intl-SAN San Diego
6h 07m1 stop Houston George Bush Intcntl
$409United Airlines
Thu, Aug 20 - Mon, Aug 24
United Airlines Logo
8:00 am - 3:59 pmSAN  San Diego-HRL Harlingen Valley Intl
5h 59m1 stop Houston George Bush Intcntl
United Airlines Logo
5:18 pm - 9:25 pmHRL  Harlingen Valley Intl-SAN San Diego
6h 07m1 stop Houston George Bush Intcntl
$411United Airlines
Wed, Sep 2 - Sat, Sep 5
Southwest Logo
6:30 am - 5:15 pmSAN  San Diego-HRL Harlingen Valley Intl
8h 45m2 stops Austin Bergstrom Houston Hobby
Southwest Logo
5:55 pm - 9:20 pmHRL  Harlingen Valley Intl-SAN San Diego
5h 25m1 stop Austin Bergstrom
$414Southwest
Thu, Aug 20 - Mon, Aug 24
United Airlines Logo
7:15 am - 9:52 pmSAN  San Diego-HRL Harlingen Valley Intl
12h 37m2 stops San Francisco Houston George Bush Intcntl
United Airlines Logo
5:18 pm - 9:25 pmHRL  Harlingen Valley Intl-SAN San Diego
6h 07m1 stop Houston George Bush Intcntl
$416United Airlines
Wed, Sep 2 - Sat, Sep 5
Southwest Logo
6:30 am - 5:15 pmSAN  San Diego-HRL Harlingen Valley Intl
8h 45m2 stops Austin Bergstrom Houston Hobby
Southwest Logo
11:55 am - 5:10 pmHRL  Harlingen Valley Intl-SAN San Diego
7h 15m2 stops Austin Bergstrom Phoenix Sky Harbor Intl
$419Southwest
Thu, Aug 20 - Mon, Aug 24
United Airlines Logo
7:15 am - 9:52 pmSAN  San Diego-HRL Harlingen Valley Intl
12h 37m2 stops San Francisco Houston George Bush Intcntl
United Airlines Logo
5:18 pm - 12:29 amHRL  Harlingen Valley Intl-SAN San Diego
9h 11m2 stops Houston George Bush Intcntl San Francisco
$426United Airlines
Wed, Sep 2 - Sat, Sep 5
United Airlines Logo
8:00 am - 3:59 pmSAN  San Diego-HRL Harlingen Valley Intl
5h 59m1 stop Houston George Bush Intcntl
United Airlines Logo
5:18 pm - 9:25 pmHRL  Harlingen Valley Intl-SAN San Diego
6h 07m1 stop Houston George Bush Intcntl
$443United Airlines
Tue, Sep 1 - Mon, Sep 7

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United Airlines flights from San Diego to Harlingen

Our best United Airlines deals on San Diego to Harlingen flight tickets
United Airlines
Aug 20
SAN8:00 amSan Diego
5h 59m
1 stop
HRL3:59 pmHarlingen Valley Intl
Aug 24
HRL5:18 pmHarlingen Valley Intl
6h 07m
1 stop
SAN9:25 pmSan Diego
$409
United Airlines
Sep 2
SAN8:00 amSan Diego
5h 59m
1 stop
HRL3:59 pmHarlingen Valley Intl
Sep 5
HRL5:18 pmHarlingen Valley Intl
6h 07m
1 stop
SAN9:25 pmSan Diego
$411
United Airlines
Sep 2
SAN7:15 amSan Diego
12h 37m
2 stops
HRL9:52 pmHarlingen Valley Intl
Sep 5
HRL5:18 pmHarlingen Valley Intl
6h 07m
1 stop
SAN9:25 pmSan Diego
$416

American Airlines flights from San Diego to Harlingen

Our best American Airlines deals on San Diego to Harlingen flight tickets
American Airlines
Nov 27
SAN6:15 amSan Diego
6h 05m
1 stop
HRL2:20 pmHarlingen Valley Intl
Dec 1
HRL6:41 pmHarlingen Valley Intl
7h 18m
1 stop
SAN11:59 pmSan Diego
$584
American Airlines
Nov 26
SAN3:13 pmSan Diego
5h 48m
1 stop
HRL11:01 pmHarlingen Valley Intl
Dec 1
HRL5:40 amHarlingen Valley Intl
6h 44m
1 stop
SAN10:24 amSan Diego
$626
American Airlines
Nov 26
SAN1:05 pmSan Diego
7h 56m
2 stops
HRL11:01 pmHarlingen Valley Intl
Dec 1
HRL6:41 pmHarlingen Valley Intl
7h 18m
1 stop
SAN11:59 pmSan Diego
$668

momondo Fare Finder

 
Customize your flight search to find flights from San Diego to Harlingen 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 San Diego to Harlingen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoHarlingen

SAN San Diego - HRL Harlingen Valley Intl

SANHRL

San Diego

Fri 8/21

6:30 am-4:05 pm

1 stop7h 35m

Harlingen Valley Intl

Tue 8/25

1:45 pm-4:55 pm

1 stop5h 10m

$392

San DiegoHarlingen

SAN San Diego - HRL Harlingen Valley Intl

SANHRL

San Diego

Fri 8/21

6:30 am-5:15 pm

2 stops8h 45m

Harlingen Valley Intl

Tue 8/25

5:40 pm-8:45 pm

1 stop5h 05m

$397

San DiegoHarlingen

SAN San Diego - HRL Harlingen Valley Intl

SANHRL

San Diego

Fri 8/21

6:30 am-5:15 pm

2 stops8h 45m

Harlingen Valley Intl

Tue 8/25

3:25 pm-8:55 pm

2 stops7h 30m

$402
Quickest round-trip

San DiegoHarlingen

SAN San Diego - HRL Harlingen Valley Intl

SANHRL

San Diego

Thu 8/20

8:00 am-3:59 pm

1 stop5h 59m

Harlingen Valley Intl

Mon 8/24

5:18 pm-9:25 pm

1 stop6h 07m

$409

San DiegoHarlingen

SAN San Diego - HRL Harlingen Valley Intl

SANHRL

San Diego

Wed 9/2

8:00 am-3:59 pm

1 stop5h 59m

Harlingen Valley Intl

Sat 9/5

5:18 pm-9:25 pm

1 stop6h 07m

$411

San DiegoHarlingen

SAN San Diego - HRL Harlingen Valley Intl

SANHRL

San Diego

Thu 8/20

6:30 am-5:15 pm

2 stops8h 45m

Harlingen Valley Intl

Mon 8/24

5:55 pm-9:20 pm

1 stop5h 25m

$414

San DiegoHarlingen

SAN San Diego - HRL Harlingen Valley Intl

SANHRL

San Diego

Wed 9/2

7:15 am-9:52 pm

2 stops12h 37m

Harlingen Valley Intl

Sat 9/5

5:18 pm-9:25 pm

1 stop6h 07m

$416

San DiegoHarlingen

SAN San Diego - HRL Harlingen Valley Intl

SANHRL

San Diego

Thu 8/20

6:30 am-5:15 pm

2 stops8h 45m

Harlingen Valley Intl

Mon 8/24

11:55 am-5:10 pm

2 stops7h 15m

$419

San DiegoHarlingen

SAN San Diego - HRL Harlingen Valley Intl

SANHRL

San Diego

Wed 9/2

7:15 am-9:52 pm

2 stops12h 37m

Harlingen Valley Intl

Sat 9/5

5:18 pm-12:29 am

2 stops9h 11m

$426

San DiegoHarlingen

SAN San Diego - HRL Harlingen Valley Intl

SANHRL

San Diego

Tue 9/1

8:00 am-3:59 pm

1 stop5h 59m

Harlingen Valley Intl

Mon 9/7

5:18 pm-9:25 pm

1 stop6h 07m

$443

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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

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 Harlingen?

If you aren’t able to travel during the month of July, then book flights to Harlingen from San Diego during September instead. Flights to Harlingen in September, while not as cheap as those in July, still average around $300.

When to book flights from San Diego to Harlingen

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

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

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

Fastest flight time

5h 59m

Direct flights

None
The fastest flight from San Diego to Harlingen takes 5h 59m
There are no direct flights from San Diego to Harlingen. There are no popular flight routes from San Diego to Harlingen.
Search flight deals

Frequently asked questions about flying from San Diego to Harlingen

  • 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 59m.

  • 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?

Best airlines flying from San Diego to Harlingen

Compare and see reviews for airlines that fly from San Diego to Harlingen with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $237Free CancellationRating
8.0
4,217 reviews
Search Southwest 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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