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Harlingen

$239+ Cheap flights from San Diego to Harlingen, TX (SAN - HRL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — HRL
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from San Diego to Harlingen

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Harlingen (HRL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 3, 2025.

Round-trip from

$244
(American Airlines)

One-way from

$239
(United Airlines)

Popular in

July

Cheapest in

March

Average price

$722
From San Diego to Harlingen Valley Intl
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One-way flight from San Diego to Harlingen Valley Intl
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Highest demand for flights based on searches. 15% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from San Diego to Harlingen

Cheapest flights from San Diego to Harlingen
Explore the most affordable flight options available from San Diego to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/293:22 pmSAN - HRL
1 stop6h 44mAmerican Airlines
Tue 8/57:59 pmHRL - SAN
1 stop6h 10mAmerican Airlines
Deal found 7/1$244
This Southwest deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/296:25 amSAN - HRL
2 stops14h 25mSouthwest
Tue 8/53:55 pmHRL - SAN
1 stop8h 10mSouthwest
Deal found 7/1$273
This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/106:45 amSAN - HRL
2 stops10h 50mUnited Airlines
Sat 7/125:20 pmHRL - SAN
2 stops8h 24mUnited Airlines
Deal found 7/1$498

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
Use the filters below to find and compare flights from San Diego to Harlingen that are best for you.

Fly from

San Diego

Fly to

Harlingen

Route

Depart

Return

Price

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 7/29

3:22 pm-12:06 am

1 stop6h 44m

Harlingen Valley Intl

Tue 8/5

7:59 pm-12:09 am

1 stop6h 10m

$244

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 7/29

6:25 am-10:50 pm

2 stops14h 25m

Harlingen Valley Intl

Tue 8/5

3:55 pm-10:05 pm

1 stop8h 10m

$273

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Thu 7/31

6:15 am-4:00 pm

1 stop7h 45m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from San Diego to Harlingen

Have a flexible travel schedule? Discover the best time to fly to Harlingen from San Diego with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Diego to Harlingen

What is the cheapest month to book a flight from San Diego to Harlingen, Texas?

Currently, April is the cheapest month in which you can book a flight from San Diego to Harlingen, Texas (average of $267). Flying from San Diego to Harlingen, Texas in June is currently the most expensive (average of $390). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAN to HRL?

Find hourly flight availability from San Diego to Harlingen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

It’s optimal to fly from San Diego to Harlingen, Texas in the evening. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Harlingen

Get insights into the airlines that provide service to Harlingen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Harlingen. Reviews last updated July 3, 2025.
Read reviews from past customers who have flown Southwest, United Airlines, and American Airlines from San Diego to Harlingen. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,861 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Harlingen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from San Diego to Harlingen, Texas round-trip?

    According to our current data, American Airlines ($244), and Southwest ($273) offers the cheapest pricing from San Diego to Harlingen, Texas. These flights start at 41% lower than the current average price 3 months from now.

  • Can I find deals for flights from San Diego to Harlingen that include hotel bookings?

    Yes. In addition to deals on San Diego to Harlingen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Harlingen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Harlingen.

  • Can I find deals for business class flights from San Diego to Harlingen?

    Yes. Cheapflights offers flight deals from San Diego to Harlingen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Diego to Harlingen, Texas?

    Currently, April is the cheapest month in which you can book a flight from San Diego to Harlingen, Texas (average of $267). Flying from San Diego to Harlingen, Texas in June is currently the most expensive (average of $390). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from San Diego to Harlingen

Discover the top 2 airlines that operate flights from San Diego to Harlingen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$240Average$452FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$262Average$355FlexibilityNo cancel feeOn-time71%

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