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Harlingen

$160+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — HRL
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
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 October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(United Airlines)

One-way from

$160
(American Airlines)

Popular in

October

Cheapest in

March

Average price

$538
Provider with most accurate pricing for San Diego-Harlingen Valley Intl flight deals.
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Provider most trusted by Cheapflights users for San Diego-Harlingen Valley Intl flights.
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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. 13% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 23, 2025.

This United Airlines deal was found by Cheapflights users on 10/22. 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 stop5h 32mUnited Airlines
Sun 11/1612:10 pmHRL - SAN
1 stop8h 14mUnited Airlines
Deal found 10/22$217
This Southwest deal was found by Cheapflights users on 10/22. 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.
Wed 11/1210:40 amSAN - HRL
1 stop8h 25mSouthwest
Sun 11/165:45 amHRL - SAN
1 stop8h 55mSouthwest
Deal found 10/22$228
This American Airlines deal was found by Cheapflights users on 10/23. 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 11/129:42 amSAN - HRL
1 stop6h 28mAmerican Airlines
Sun 11/168:04 pmHRL - SAN
1 stop5h 52mAmerican Airlines
Deal found 10/23$303
This American Airlines deal was found by Cheapflights users on 10/21. 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 11/57:21 amSAN - HRL
1 stop6h 11mAmerican Airlines
Sun 11/98:04 pmHRL - SAN
1 stop5h 52mAmerican Airlines
Deal found 10/21$319
This Southwest deal was found by Cheapflights users on 10/21. 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 12/122:30 pmSAN - HRL
1 stop6h 00mSouthwest
Sun 12/285:00 amHRL - SAN
2 stops7h 50mSouthwest
Deal found 10/21$406
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Fri 11/76:15 amSAN - HRL
1 stop7h 17mAmerican Airlines
Sun 11/98:04 pmHRL - SAN
1 stop5h 52mAmerican Airlines
Deal found 10/21$414

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 October 23, 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

Wed 11/12

12:07 pm-7:39 pm

1 stop5h 32m

Harlingen Valley Intl

Sun 11/16

12:10 pm-6:24 pm

1 stop8h 14m

$217

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Wed 11/12

10:40 am-9:05 pm

1 stop8h 25m

Harlingen Valley Intl

Sun 11/16

5:45 am-12:40 pm

1 stop8h 55m

$228

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Wed 11/12

9:42 am-6:10 pm

1 stop6h 28m

Harlingen Valley Intl

Sun 11/16

8:04 pm-11:56 pm

1 stop5h 52m

$303

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 3/31

1:58 pm-9:44 pm

1 stop5h 46m

Harlingen Valley Intl

Mon 4/6

2:00 pm-7:57 pm

1 stop7h 57m

$341

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Wed 11/5

12:50 pm-11:14 pm

2 stops8h 24m

Harlingen Valley Intl

Sun 11/9

8:04 pm-11:56 pm

1 stop5h 52m

$359

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 3/31

6:20 am-4:10 pm

1 stop7h 50m

Harlingen Valley Intl

Tue 3/31

6:20 pm-9:45 pm

1 stop5h 25m

$369

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Wed 11/5

2:55 pm-11:14 pm

1 stop6h 19m

$160

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 11/4

12:43 pm-11:14 pm

1 stop8h 31m

$160

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Tue 11/4

11:02 am-9:54 pm

2 stops8h 52m

$234

San DiegoHarlingen

SAN - HRL

SANHRL

San Diego

Wed 11/5

11:02 am-9:54 pm

2 stops8h 52m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Compare providers for flights from San Diego to Harlingen

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Harlingen in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Diego-Harlingen, Texas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Harlingen, Texas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Harlingen, Texas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Harlingen, Texas flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Harlingen, Texas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $83). Flying from San Diego to Harlingen, Texas in June is currently the most expensive (average of $327). 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 October 23, 2025.

It’s optimal to fly from San Diego to Harlingen, Texas in the evening. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight at noon.

How much does it cost to fly round-trip from San Diego to Harlingen, Texas?

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 October 23, 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
4,236 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

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
4,236 reviews
Southwest
8.0
Very good
4,236 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

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
11,033 reviews
Southwest
8.0
Very good
4,236 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

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 United Airlines and Southwest fly from San Diego to Harlingen, Texas in about 5h 32m. The time it takes to get you to your destination can typically vary by up to 2h 53m. 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. These flights start at 40% 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 $83). Flying from San Diego to Harlingen, Texas in June is currently the most expensive (average of $327). 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.

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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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$240Average$477FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$262Average$355FlexibilityNo cancel feeOn-time71%

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