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Cheap flights from Harlingen to San Diego from $199

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen to San Diego departing on 7/13. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Harlingen to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:18 pm - 9:24 pm
HRL
-
SAN
6h 06m
1 stop
United Airlines Logo
8:00 am - 3:59 pm
SAN
-
HRL
5h 59m
1 stop
$245United Airlines
Wed, Sep 9 - Mon, Sep 14
United Airlines Logo
1:59 pm - 10:28 pm
HRL
-
SAN
10h 29m
2 stops
United Airlines Logo
8:00 am - 3:59 pm
SAN
-
HRL
5h 59m
1 stop
$250United Airlines
Wed, Sep 9 - Mon, Sep 14
United Airlines Logo
7:15 am - 10:58 am
HRL
-
SAN
5h 43m
1 stop
United Airlines Logo
8:00 am - 3:59 pm
SAN
-
HRL
5h 59m
1 stop
$287United Airlines
Thu, Sep 10 - Fri, Sep 11
United Airlines Logo
7:15 am - 3:54 pm
HRL
-
SAN
10h 39m
2 stops
United Airlines Logo
12:04 pm - 7:39 pm
SAN
-
HRL
5h 35m
1 stop
$292United Airlines
Thu, Sep 10 - Fri, Sep 11
American Airlines Logo
8:04 pm - 11:59 pm
HRL
-
SAN
5h 55m
1 stop
American Airlines Logo
6:20 am - 4:23 pm
SAN
-
HRL
8h 03m
1 stop
$320American Airlines
Fri, Jul 17 - Tue, Jul 21
United Airlines Logo
5:18 pm - 9:25 pm
HRL
-
SAN
6h 07m
1 stop
United Airlines Logo
8:00 am - 3:59 pm
SAN
-
HRL
5h 59m
1 stop
$335United Airlines
Tue, Aug 25 - Wed, Aug 26
United Airlines Logo
5:18 pm - 9:25 pm
HRL
-
SAN
6h 07m
1 stop
United Airlines Logo
6:20 am - 3:59 pm
SAN
-
HRL
7h 39m
2 stops
$340United Airlines
Tue, Aug 25 - Wed, Aug 26
United Airlines Logo
5:05 am - 1:01 pm
HRL
-
SAN
9h 56m
2 stops
United Airlines Logo
6:15 am - 3:59 pm
SAN
-
HRL
7h 44m
2 stops
$345United Airlines
Tue, Sep 22 - Wed, Sep 23
Southwest Logo
5:10 pm - 10:35 pm
HRL
-
SAN
7h 25m
1 stop
Southwest Logo
8:05 am - 6:00 pm
SAN
-
HRL
7h 55m
1 stop
$355Southwest
Sat, Jul 11 - Tue, Jul 14
Southwest Logo
11:55 am - 5:10 pm
HRL
-
SAN
7h 15m
2 stops
Southwest Logo
6:30 am - 5:15 pm
SAN
-
HRL
8h 45m
2 stops
$375Southwest
Thu, Sep 10 - Fri, Sep 11

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United Airlines flights from Harlingen to San Diego

Our best United Airlines deals on Harlingen to San Diego flight tickets
United Airlines
Sep 9
HRL5:18 pmHarlingen Valley Intl
6h 06m
1 stop
SAN9:24 pmSan Diego
Sep 14
SAN8:00 amSan Diego
5h 59m
1 stop
HRL3:59 pmHarlingen Valley Intl
$245
United Airlines
Sep 9
HRL1:59 pmHarlingen Valley Intl
10h 29m
2 stops
SAN10:28 pmSan Diego
Sep 14
SAN8:00 amSan Diego
5h 59m
1 stop
HRL3:59 pmHarlingen Valley Intl
$250
United Airlines
Sep 10
HRL7:15 amHarlingen Valley Intl
5h 43m
1 stop
SAN10:58 amSan Diego
Sep 11
SAN8:00 amSan Diego
5h 59m
1 stop
HRL3:59 pmHarlingen Valley Intl
$287

Southwest flights from Harlingen to San Diego

Our best Southwest deals on Harlingen to San Diego flight tickets
Southwest
Sep 10
HRL11:55 amHarlingen Valley Intl
7h 15m
2 stops
SAN5:10 pmSan Diego
Sep 11
SAN6:30 amSan Diego
8h 45m
2 stops
HRL5:15 pmHarlingen Valley Intl
$375
Southwest
Oct 1
HRL5:30 pmHarlingen Valley Intl
5h 45m
1 stop
SAN9:15 pmSan Diego
Oct 4
SAN6:55 amSan Diego
5h 40m
1 stop
HRL2:35 pmHarlingen Valley Intl
$389
Southwest
Oct 1
HRL11:55 amHarlingen Valley Intl
7h 40m
1 stop
SAN5:35 pmSan Diego
Oct 2
SAN1:55 pmSan Diego
7h 45m
2 stops
HRL11:40 pmHarlingen Valley Intl
$394

momondo Fare Finder

 
Customize your flight search to find flights from Harlingen 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 June 18, 2026.
Use the filters below to find and compare flights from Harlingen to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

Wed 9/9

5:18 pm-9:24 pm

1 stop6h 06m

San Diego

Mon 9/14

8:00 am-3:59 pm

1 stop5h 59m

$245

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

Wed 9/9

1:59 pm-10:28 pm

2 stops10h 29m

San Diego

Mon 9/14

8:00 am-3:59 pm

1 stop5h 59m

$250
Quickest round-trip

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

Thu 9/10

7:15 am-10:58 am

1 stop5h 43m

San Diego

Fri 9/11

8:00 am-3:59 pm

1 stop5h 59m

$287

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

Thu 9/10

7:15 am-3:54 pm

2 stops10h 39m

San Diego

Fri 9/11

12:04 pm-7:39 pm

1 stop5h 35m

$292

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

Fri 7/17

8:04 pm-11:59 pm

1 stop5h 55m

San Diego

Tue 7/21

6:20 am-4:23 pm

1 stop8h 03m

$320

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

Tue 8/25

5:18 pm-9:25 pm

1 stop6h 07m

San Diego

Wed 8/26

8:00 am-3:59 pm

1 stop5h 59m

$335

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

Tue 8/25

5:18 pm-9:25 pm

1 stop6h 07m

San Diego

Wed 8/26

6:20 am-3:59 pm

2 stops7h 39m

$340

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

Tue 9/22

5:05 am-1:01 pm

2 stops9h 56m

San Diego

Wed 9/23

6:15 am-3:59 pm

2 stops7h 44m

$345

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

Sat 7/11

5:10 pm-10:35 pm

1 stop7h 25m

San Diego

Tue 7/14

8:05 am-6:00 pm

1 stop7h 55m

$355

HarlingenSan Diego

HRL - SAN

HRLSAN

Harlingen Valley Intl

Thu 9/10

11:55 am-5:10 pm

2 stops7h 15m

San Diego

Fri 9/11

6:30 am-5:15 pm

2 stops8h 45m

$375

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to San Diego from

How to get the cheapest flight ticket from Harlingen 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 typical price of a round-trip flight between Harlingen and San Diego?

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of March, then departing from Harlingen during the month October is also very affordable. Most momondo users find prices during this month for around $258.

When to book flights from Harlingen to San Diego

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

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

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

Fastest flight time

5h 15m

Direct flights

None
The fastest flight from Harlingen to San Diego takes 5h 15m
There are no direct flights from Harlingen to San Diego. There are no popular flight routes from Harlingen to San Diego.
Search flight deals

Frequently asked questions about flying from Harlingen to San Diego

  • 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 15m 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 to San Diego?

Best airlines flying from Harlingen to San Diego

Compare and see reviews for airlines that fly from Harlingen to San Diego with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $143Free CancellationRating
7.9
4,237 reviews
Search Southwest flights
United AirlinesPriceFrom $239Free CancellationRating
7.4
9,859 reviews
Search United Airlines flights
American AirlinesPriceFrom $256Free CancellationRating
7.1
11,686 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
Chula Vista
Coronado
El Cajon
Julian
National City
Poway
La Mesa
San Ysidro
Borrego Springs
Imperial Beach
Lemon Grove
Santee
Alpine

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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