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Harlingen

$237+ Cheap flights from San Diego to Harlingen, TX (SAN - HRL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — HRL
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$237
(Southwest)
From San Diego to Harlingen Valley Intl
Search Deals

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 September 17, 2025.

This Southwest deal was found by Cheapflights users on 9/16. 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.
Fri 10/242:00 pmSAN - HRL
1 stop7h 30mSouthwest
Mon 10/276:00 pmHRL - SAN
1 stop6h 05mSouthwest
Deal found 9/16$237
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 10/148:00 amSAN - HRL
1 stop6h 13mUnited Airlines
Tue 10/212:05 pmHRL - SAN
2 stops12h 10mUnited Airlines
Deal found 9/14$253
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/143:14 pmSAN - HRL
1 stop5h 50mAmerican Airlines
Tue 10/216:37 pmHRL - SAN
1 stop5h 51mAmerican Airlines
Deal found 9/14$258
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 11/1212:07 pmSAN - HRL
1 stop7h 47mUnited Airlines
Sun 11/165:00 pmHRL - SAN
1 stop6h 53mUnited Airlines
Deal found 9/15$307
This Southwest deal was found by Cheapflights users on 9/14. 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 10/141:55 pmSAN - HRL
2 stops6h 40mSouthwest
Tue 10/216:40 amHRL - SAN
2 stops8h 05mSouthwest
Deal found 9/14$322
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 9/1610:15 amSAN - HRL
1 stop7h 18mUnited Airlines
Tue 9/235:00 amHRL - SAN
1 stop7h 55mUnited Airlines
Deal found 9/15$365
This American Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 11/126:30 amSAN - HRL
2 stops9h 40mAmerican Airlines
Sun 11/168:04 pmHRL - SAN
1 stop5h 52mAmerican Airlines
Deal found 9/17$379

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 September 17, 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

Fri 10/24

2:00 pm-11:30 pm

1 stop7h 30m

Harlingen Valley Intl

Mon 10/27

6:00 pm-10:05 pm

1 stop6h 05m

$237

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 10/14

8:00 am-4:13 pm

1 stop6h 13m

Harlingen Valley Intl

Tue 10/21

2:05 pm-12:15 am

2 stops12h 10m

$253

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 10/14

6:15 am-2:18 pm

1 stop6h 03m

Harlingen Valley Intl

Tue 10/21

5:25 am-9:56 am

1 stop6h 31m

$258

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Wed 11/12

12:07 pm-9:54 pm

1 stop7h 47m

Harlingen Valley Intl

Sun 11/16

5:00 pm-9:53 pm

1 stop6h 53m

$307

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 10/14

1:55 pm-10:35 pm

2 stops6h 40m

Harlingen Valley Intl

Tue 10/21

6:40 am-12:45 pm

2 stops8h 05m

$322

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Wed 11/12

6:30 am-6:10 pm

2 stops9h 40m

Harlingen Valley Intl

Sun 11/16

8:04 pm-11:56 pm

1 stop5h 52m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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 $382). 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 September 17, 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 September 17, 2025.
Read reviews from past customers who have flown Southwest 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
4,242 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from San Diego to Harlingen, Texas?

    Airlines like Southwest, United Airlines, and American Airlines fly from San Diego to Harlingen, Texas in about 6h 03m. The time it takes to get you to your destination can typically vary by up to 1h 27m. The distance between San Diego and Harlingen, Texas is about 1255 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, Southwest ($240), and American Airlines ($262) offers the cheapest pricing from San Diego to Harlingen, Texas.

  • 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 $382). 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$240Average$477FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$262Average$355FlexibilityNo cancel feeOn-time71%

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