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Cheap flights from San Diego to Harlingen from $109

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 7/21. 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.
Southwest Logo
4:25 pm - 11:40 pm
SAN
-
HRL
5h 15m
1 stop
Southwest Logo
5:00 pm - 8:25 pm
HRL
-
SAN
5h 25m
1 stop
$217Southwest
Thu, Jul 23 - Tue, Jul 28
American Airlines Logo
10:57 am - 7:34 pm
SAN
-
HRL
6h 37m
1 stop
American Airlines Logo
8:04 pm - 11:59 pm
HRL
-
SAN
5h 55m
1 stop
$220American Airlines
Wed, Jun 3 - Wed, Jun 10
American Airlines Logo
10:57 am - 7:34 pm
SAN
-
HRL
6h 37m
1 stop
American Airlines Logo
8:04 pm - 11:59 pm
HRL
-
SAN
5h 55m
1 stop
$221American Airlines
Wed, May 27 - Wed, Jun 3
Southwest Logo
12:30 pm - 10:00 pm
SAN
-
HRL
7h 30m
2 stops
Southwest Logo
5:00 pm - 8:25 pm
HRL
-
SAN
5h 25m
1 stop
$222Southwest
Wed, Jun 3 - Wed, Jun 10
American Airlines Logo
6:15 am - 3:31 pm
SAN
-
HRL
7h 16m
1 stop
American Airlines Logo
8:04 pm - 11:56 pm
HRL
-
SAN
5h 52m
1 stop
$264American Airlines
Tue, Nov 3 - Tue, Nov 17
American Airlines Logo
12:45 pm - 12:14 am
SAN
-
HRL
9h 29m
2 stops
American Airlines Logo
8:04 pm - 11:59 pm
HRL
-
SAN
5h 55m
1 stop
$268American Airlines
Wed, May 27 - Wed, Jun 3
United Airlines Logo
8:00 am - 3:34 pm
SAN
-
HRL
5h 34m
1 stop
United Airlines Logo
5:15 am - 1:44 pm
HRL
-
SAN
10h 29m
2 stops
$284United Airlines
Fri, Sep 18 - Tue, Sep 22
United Airlines Logo
1:58 pm - 9:44 pm
SAN
-
HRL
5h 46m
1 stop
United Airlines Logo
5:15 am - 2:53 pm
HRL
-
SAN
11h 38m
2 stops
$294United Airlines
Tue, Nov 3 - Tue, Nov 17
Southwest Logo
2:45 pm - 11:40 pm
SAN
-
HRL
6h 55m
2 stops
Southwest Logo
7:05 am - 12:15 pm
HRL
-
SAN
7h 10m
2 stops
$298Southwest
Thu, Jul 23 - Tue, Jul 28
American Airlines Logo
7:21 am - 3:31 pm
SAN
-
HRL
6h 10m
1 stop
American Airlines Logo
4:02 pm - 8:18 pm
HRL
-
SAN
6h 16m
1 stop
$307American Airlines
Tue, Nov 3 - Tue, Nov 17

United Airlines flights from San Diego to Harlingen

Our best United Airlines deals on San Diego to Harlingen flight tickets
United Airlines
Sep 18
SAN8:00 amSan Diego
5h 34m
1 stop
HRL3:34 pmHarlingen Valley Intl
Sep 22
HRL5:15 amHarlingen Valley Intl
10h 29m
2 stops
SAN1:44 pmSan Diego
$284
United Airlines
Nov 3
SAN1:58 pmSan Diego
5h 46m
1 stop
HRL9:44 pmHarlingen Valley Intl
Nov 17
HRL5:15 amHarlingen Valley Intl
11h 38m
2 stops
SAN2:53 pmSan Diego
$294
United Airlines
Sep 18
SAN8:00 amSan Diego
5h 34m
1 stop
HRL3:34 pmHarlingen Valley Intl
Sep 22
HRL5:15 amHarlingen Valley Intl
7h 40m
1 stop
SAN10:55 amSan Diego
$324

Southwest flights from San Diego to Harlingen

Our best Southwest deals on San Diego to Harlingen flight tickets
Southwest
Jul 23
SAN4:25 pmSan Diego
5h 15m
1 stop
HRL11:40 pmHarlingen Valley Intl
Jul 28
HRL5:00 pmHarlingen Valley Intl
5h 25m
1 stop
SAN8:25 pmSan Diego
$217
Southwest
Jun 3
SAN12:30 pmSan Diego
7h 30m
2 stops
HRL10:00 pmHarlingen Valley Intl
Jun 10
HRL5:00 pmHarlingen Valley Intl
5h 25m
1 stop
SAN8:25 pmSan Diego
$222
Southwest
Jul 23
SAN2:45 pmSan Diego
6h 55m
2 stops
HRL11:40 pmHarlingen Valley Intl
Jul 28
HRL7:05 amHarlingen Valley Intl
7h 10m
2 stops
SAN12:15 pmSan Diego
$298

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 May 10, 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
Quickest round-trip

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Thu 7/23

4:25 pm-11:40 pm

1 stop5h 15m

Harlingen Valley Intl

Tue 7/28

5:00 pm-8:25 pm

1 stop5h 25m

$217

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Wed 6/3

10:57 am-7:34 pm

1 stop6h 37m

Harlingen Valley Intl

Wed 6/10

8:04 pm-11:59 pm

1 stop5h 55m

$220

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Wed 5/27

10:57 am-7:34 pm

1 stop6h 37m

Harlingen Valley Intl

Wed 6/3

8:04 pm-11:59 pm

1 stop5h 55m

$221

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Wed 6/3

12:30 pm-10:00 pm

2 stops7h 30m

Harlingen Valley Intl

Wed 6/10

5:00 pm-8:25 pm

1 stop5h 25m

$222

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 11/3

6:15 am-3:31 pm

1 stop7h 16m

Harlingen Valley Intl

Tue 11/17

8:04 pm-11:56 pm

1 stop5h 52m

$264

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Wed 5/27

12:45 pm-12:14 am

2 stops9h 29m

Harlingen Valley Intl

Wed 6/3

8:04 pm-11:59 pm

1 stop5h 55m

$268

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Fri 9/18

8:00 am-3:34 pm

1 stop5h 34m

Harlingen Valley Intl

Tue 9/22

5:15 am-1:44 pm

2 stops10h 29m

$284

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 11/3

1:58 pm-9:44 pm

1 stop5h 46m

Harlingen Valley Intl

Tue 11/17

5:15 am-2:53 pm

2 stops11h 38m

$294

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Thu 7/23

2:45 pm-11:40 pm

2 stops6h 55m

Harlingen Valley Intl

Tue 7/28

7:05 am-12:15 pm

2 stops7h 10m

$298

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 11/3

7:21 am-3:31 pm

1 stop6h 10m

Harlingen Valley Intl

Tue 11/17

4:02 pm-8:18 pm

1 stop6h 16m

$307

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 typical price of a round-trip flight between San Diego and Harlingen?

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 May instead. Flights to Harlingen in May, while not as cheap as those in July, still average around $343.

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

4h 50m

Direct flights

None
The fastest flight from San Diego to Harlingen takes 4h 50m
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 4h 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?

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
4,304 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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