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Cheap flights from Harlingen, Texas to San Diego from $254

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen, Texas to San Diego departing on 9/14. 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 Harlingen, Texas to San Diego

Cheap round-trip flights

Southwest Logo
6:00 am - 10:45 amHRL-SAN
6h 45m2 stops
Southwest Logo
12:15 pm - 10:05 pmSAN-HRL
7h 50m1 stop
$254Southwest
Find Deal
dom, set 14 - qua, set 17
Southwest Logo
6:00 am - 9:50 amHRL-SAN
5h 50m1 stop
Southwest Logo
12:15 pm - 10:05 pmSAN-HRL
7h 50m1 stop
$264Southwest
Find Deal
dom, set 14 - qua, set 17
Southwest Logo
6:00 am - 10:45 amHRL-SAN
6h 45m2 stops
Southwest Logo
8:40 pm - 11:20 amSAN-HRL
12h 40m2 stops
$286Southwest
Find Deal
dom, set 14 - qua, set 17
Southwest Logo
6:00 am - 9:50 amHRL-SAN
5h 50m1 stop
Southwest Logo
7:45 am - 2:55 pmSAN-HRL
5h 10m1 stop
$295Southwest
Find Deal
dom, ago 24 - qua, ago 27
Southwest Logo
6:00 am - 10:45 amHRL-SAN
6h 45m2 stops
Southwest Logo
1:05 pm - 9:25 pmSAN-HRL
6h 20m1 stop
$300Southwest
Find Deal
dom, ago 24 - qua, ago 27
Southwest Logo
5:45 pm - 9:55 pmHRL-SAN
6h 10m1 stop
Southwest Logo
9:45 pm - 11:20 amSAN-HRL
11h 35m2 stops
$322Southwest
Find Deal
sex, set 26 - dom, set 28
Southwest Logo
5:45 pm - 9:55 pmHRL-SAN
6h 10m1 stop
Southwest Logo
7:10 am - 3:25 pmSAN-HRL
6h 15m1 stop
$326Southwest
Find Deal
sex, set 26 - dom, set 28
Southwest Logo
6:00 am - 10:45 amHRL-SAN
6h 45m2 stops
Southwest Logo
1:05 pm - 10:05 pmSAN-HRL
7h 00m2 stops
$327Southwest
Find Deal
dom, ago 24 - qua, ago 27
United Airlines Logo
5:20 pm - 9:41 pmHRL-SAN
6h 21m1 stop
United Airlines Logo
10:15 am - 7:33 pmSAN-HRL
7h 18m1 stop
$357United Airlines
Find Deal
qui, set 18 - seg, set 22
United Airlines Logo
5:20 pm - 9:41 pmHRL-SAN
6h 21m1 stop
United Airlines Logo
10:54 am - 9:52 pmSAN-HRL
8h 58m2 stops
$402United Airlines
Find Deal
qui, set 18 - seg, set 22

Southwest flights from Harlingen, Texas to San Diego

Our best Southwest deals on Harlingen, Texas to San Diego flight tickets
Southwest
Sep 14
HRL6:00 amHarlingen Valley Intl
6h 45m
2 stops
SAN10:45 amSan Diego
Sep 17
SAN12:15 pmSan Diego
7h 50m
1 stop
HRL10:05 pmHarlingen Valley Intl
$254
Find similar
Southwest
Sep 14
HRL6:00 amHarlingen Valley Intl
5h 50m
1 stop
SAN9:50 amSan Diego
Sep 17
SAN12:15 pmSan Diego
7h 50m
1 stop
HRL10:05 pmHarlingen Valley Intl
$264
Find similar
Southwest
Sep 14
HRL6:00 amHarlingen Valley Intl
6h 45m
2 stops
SAN10:45 amSan Diego
Sep 17
SAN8:40 pmSan Diego
12h 40m
2 stops
HRL11:20 amHarlingen Valley Intl
$286
Find similar

United Airlines flights from Harlingen, Texas to San Diego

Our best United Airlines deals on Harlingen, Texas to San Diego flight tickets
United Airlines
Sep 18
HRL5:20 pmHarlingen Valley Intl
6h 21m
1 stop
SAN9:41 pmSan Diego
Sep 22
SAN10:15 amSan Diego
7h 18m
1 stop
HRL7:33 pmHarlingen Valley Intl
$357
Find similar
United Airlines
Sep 18
HRL5:20 pmHarlingen Valley Intl
6h 21m
1 stop
SAN9:41 pmSan Diego
Sep 22
SAN10:54 amSan Diego
8h 58m
2 stops
HRL9:52 pmHarlingen Valley Intl
$402
Find similar
United Airlines
Sep 18
HRL5:20 pmHarlingen Valley Intl
8h 24m
2 stops
SAN11:44 pmSan Diego
Sep 22
SAN10:54 amSan Diego
8h 58m
2 stops
HRL9:52 pmHarlingen Valley Intl
$537
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Harlingen, Texas to San Diego 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 agosto 7, 2025.
Use the filters below to find and compare flights from Harlingen, Texas to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

dom 9/14

6:00 am-10:45 am

2 stops6h 45m

San Diego

qua 9/17

12:15 pm-10:05 pm

1 stop7h 50m

$254

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

dom 9/14

6:00 am-9:50 am

1 stop5h 50m

San Diego

qua 9/17

12:15 pm-10:05 pm

1 stop7h 50m

$264

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

dom 9/14

6:00 am-10:45 am

2 stops6h 45m

San Diego

qua 9/17

8:40 pm-11:20 am

2 stops12h 40m

$286

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

dom 8/24

6:00 am-9:50 am

1 stop5h 50m

San Diego

qua 8/27

7:45 am-2:55 pm

1 stop5h 10m

$295

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

dom 8/24

6:00 am-10:45 am

2 stops6h 45m

San Diego

qua 8/27

1:05 pm-9:25 pm

1 stop6h 20m

$300

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

sex 9/26

5:45 pm-9:55 pm

1 stop6h 10m

San Diego

dom 9/28

9:45 pm-11:20 am

2 stops11h 35m

$322

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

sex 9/26

5:45 pm-9:55 pm

1 stop6h 10m

San Diego

dom 9/28

7:10 am-3:25 pm

1 stop6h 15m

$326

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

dom 8/24

6:00 am-10:45 am

2 stops6h 45m

San Diego

qua 8/27

1:05 pm-10:05 pm

2 stops7h 00m

$327

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

qui 9/18

5:20 pm-9:41 pm

1 stop6h 21m

San Diego

seg 9/22

10:15 am-7:33 pm

1 stop7h 18m

$357

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

qui 9/18

5:20 pm-9:41 pm

1 stop6h 21m

San Diego

seg 9/22

10:54 am-9:52 pm

2 stops8h 58m

$402

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to San Diego from

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

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 San Diego?

If you are unable to visit San Diego during the month of September, then departing from Harlingen, Texas during the month January is also very affordable. Most momondo users find prices during this month for around $232.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Harlingen, Texas to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $287. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $463. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the afternoon when flights can be purchased for as low as $372. Flights in the morning are often more expensive with an average ticket price of $380.

When to book flights from Harlingen, Texas to San Diego

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

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

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

Best Price Found

$254

Fastest flight time

5h 50m

Direct flights

None

Airports in San Diego

1 airport
The best flight deal from Harlingen, Texas to San Diego found on momondo in the last 72 hours is $254
The fastest flight from Harlingen, Texas to San Diego takes 5h 50m
There are no direct flights from Harlingen, Texas to San Diego. Popular non-direct route for this connection is Harlingen Valley Intl Airport - San Diego Airport.
There is 1 airport near San Diego: San Diego (SAN)
Search flight deals

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

    The straight-line distance from Harlingen Valley Intl to San Diego is 1251.3 mi. Typically, this will take 5h 50m by plane in normal conditions.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Harlingen Valley Intl Airport to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Harlingen, Texas to San Diego

Compare and see reviews for airlines that fly from Harlingen, Texas to San Diego with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $179Free CancellationRating
8.0
4,244 reviews
Search Southwest flights
United AirlinesPriceFrom $208Free CancellationRating
7.4
8,917 reviews
Search United Airlines flights
American AirlinesPriceFrom $252Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
La Mesa
Imperial Beach
Poway
San Ysidro
Borrego Springs
Alpine
Lemon Grove
Santee

Why use momondo?

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

Finding the right flight to San Diego from Harlingen is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Diego quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Harlingen to San Diego flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to San Diego from Harlingen. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Harlingen to San Diego 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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