In terms of precipitation, rainfall in Harlingen, Texas ranges from 1.1 - 5.2 inches per month. September is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Harlingen, Texas when rainfall is around 1.1 in.

If weather is an important factor for your trip to Harlingen, Texas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 60.8 F).

Most accurate provider : When it comes to deals on San Antonio-Harlingen, Texas flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-Harlingen, Texas flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-Harlingen, Texas flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San Antonio-Harlingen, Texas flights, Cheapflights users trust eDreams the most. eDreams 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 Antonio-Harlingen, Texas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from San Antonio to Harlingen?

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

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

Yes. Cheapflights offers flight deals from San Antonio 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.

Find Flights from San Antonio to Harlingen, TX

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Cheap flight deals from San Antonio to Harlingen

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Popular in	December
Cheapest in	September
Average price	$368

Provider with most accurate pricing for San Antonio-Harlingen Valley Intl flight deals.

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Provider most trusted by Cheapflights users for San Antonio-Harlingen Valley Intl flights.

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Highest demand for flights based on searches. 8% potential increase in price ($27 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).

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Average for round-trip flights in October 2025

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Compare providers for flights from San Antonio to Harlingen

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Harlingen in October.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust 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 Antonio-Harlingen, Texas flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-Harlingen, Texas flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-Harlingen, Texas flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San Antonio-Harlingen, Texas flights, Cheapflights users trust eDreams the most. eDreams 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 Antonio-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 Antonio to Harlingen

Have a flexible travel schedule? Discover the best time to fly to Harlingen from San Antonio 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 Antonio to Harlingen

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

Currently, May is the cheapest month in which you can book a flight from San Antonio to Harlingen, Texas (average of $60). Flying from San Antonio to Harlingen, Texas in July is currently the most expensive (average of $128). 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 SAT to HRL?

It’s optimal to fly from San Antonio to Harlingen, Texas in the evening. By choosing this option you can save up to 59% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Harlingen

Peruse reviews from past customers who have flown with Southwest from San Antonio to Harlingen to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,235 reviews

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

4,235 reviews

Southwest

8.0

Very good

4,235 reviews

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

Can I find deals for flights from San Antonio to Harlingen that include hotel bookings?
Yes. In addition to deals on San Antonio to Harlingen flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Antonio to Harlingen?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Harlingen.
Can I find deals for business class flights from San Antonio to Harlingen?
Yes. Cheapflights offers flight deals from San Antonio 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 Antonio to Harlingen, Texas?
Currently, May is the cheapest month in which you can book a flight from San Antonio to Harlingen, Texas (average of $60). Flying from San Antonio to Harlingen, Texas in July is currently the most expensive (average of $128). 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 airline flying from San Antonio to Harlingen

Airline	Cheapest	Average	Flexibility	On-time
Southwest	Cheapest$238	Average$298	FlexibilityNo cancel fee	On-time63%

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Cheap flights from San Antonio to Harlingen, TX (SAT - HRL)

Find cheap flights from San Antonio to Harlingen with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from San Antonio to Harlingen

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Compare providers for flights from San Antonio 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 Antonio to Harlingen in October.

Best time to book a flight from San Antonio to Harlingen

Have a flexible travel schedule? Discover the best time to fly to Harlingen from San Antonio with our price prediction graph.

Cheapflights Insights

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

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

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

Reviews of airlines servicing Harlingen

Peruse reviews from past customers who have flown with Southwest from San Antonio to Harlingen to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

How can I find direct flights from San Antonio to Harlingen?

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Antonio to Harlingen

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Top airline flying from San Antonio to Harlingen

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