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

Cheapflights users have booked flights from San Francisco to Harlingen, Texas round-trip from $638. Other airlines that can offer you cheap pricing are American Airlines, from $678, and Southwest, from $750.

What is the cheapest day to fly from San Francisco to Harlingen, Texas?

Travelers seeking maximum savings on their San Francisco to Harlingen, Texas flight should consider departing on Monday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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).

What is the cheapest day to fly round-trip from San Francisco to Harlingen, Texas?

Users have found that flying from San Francisco to Harlingen, Texas on a Tuesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest month to fly from San Francisco to Harlingen, Texas?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, October can be a great choice for travel to Harlingen, Texas. Flights to Harlingen, Texas from San Francisco in October are about $417 on average during October, but can be found for as low as $241.

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

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

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

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

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

Yes. Cheapflights offers flight deals from San Francisco 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.

$164+ Flights from San Francisco to Harlingen, TX

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from San Francisco to Harlingen with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from San Francisco to Harlingen

Round-trip from	$638 (United Airlines)
One-way from	$164 (United Airlines)
Popular in	December
Cheapest in	October
Average price	$367

From San Francisco to Harlingen Valley Intl

Search Deals

One-way flight from San Francisco to Harlingen Valley Intl

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($78 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($25 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from San Francisco to Harlingen

Cheapest flights from San Francisco to Harlingen
Explore the most affordable flight options available from San Francisco to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Fri 8/13:40 pmSFO - HRL

1 stop6h 26mAmerican Airlines

Sun 8/37:59 pmHRL - SFO

1 stop6h 09mAmerican Airlines

Deal found 7/30

$554

Sun 11/2311:59 pmSFO - HRL

1 stop9h 00mUnited Airlines

Sat 11/295:00 pmHRL - SFO

1 stop11h 19mUnited Airlines

Deal found 7/30

$603

Fri 8/812:55 pmSFO - HRL

1 stop6h 35mSouthwest

Sun 8/106:00 amHRL - SFO

2 stops8h 30mSouthwest

Deal found 7/30

$750

Best flights from San Francisco to Harlingen
Discover carefully curated flight deals from San Francisco to Harlingen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2025.

Sun 11/2311:59 pmSFO - HRL

1 stop9h 00mUnited Airlines

Sat 11/295:00 pmHRL - SFO

1 stop11h 19mUnited Airlines

Deal found 7/30

$603

Last-minute flights from San Francisco to Harlingen
Discover last-minute flight deals from San Francisco to Harlingen. Data last updated July 31, 2025 and is based on user searches.

Fri 8/13:40 pmSFO - HRL

1 stop6h 26mAmerican Airlines

Sun 8/37:59 pmHRL - SFO

1 stop6h 09mAmerican Airlines

Deal found 7/30

$554

Thu 8/712:45 amSFO - HRL

1 stop6h 47mAmerican Airlines

Sun 8/105:30 amHRL - SFO

1 stop6h 42mAmerican Airlines

Deal found 7/30

$678

Fri 8/85:00 amSFO - HRL

1 stop6h 20mUnited Airlines

Sun 8/105:20 pmHRL - SFO

1 stop8h 39mUnited Airlines

Deal found 7/30

$638

Fri 8/812:55 pmSFO - HRL

1 stop6h 35mSouthwest

Sun 8/106:00 amHRL - SFO

2 stops8h 30mSouthwest

Deal found 7/30

$750

One-way flights from San Francisco to Harlingen
Search for one-way flight options from San Francisco to Harlingen. Find affordable one-way fares based on user searches. Data last updated July 31, 2025.

Sun 9/145:00 amSFO - HRL

1 stop9h 02mUnited Airlines

Deal found 7/31

$164

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Francisco to Harlingen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoHarlingen

SFO - HRL

SFOHRL

San Francisco

Sun 11/23

11:59 pm-10:59 am

1 stop9h 00m

Harlingen Valley Intl

Sat 11/29

5:00 pm-2:19 am

1 stop11h 19m

$603

San FranciscoHarlingen

SFO - HRL

SFOHRL

San Francisco

Sun 9/14

5:00 am-4:02 pm

1 stop9h 02m

$164

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Best time to book a flight from San Francisco to Harlingen

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

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

Currently, April is the cheapest month in which you can book a flight from San Francisco to Harlingen, Texas (average of $267). Flying from San Francisco to Harlingen, Texas in June is currently the most expensive (average of $381). 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 SFO to HRL?

A simple way to save on the total cost of your ticket is to fly from San Francisco to Harlingen, Texas in the afternoon. If you’re flexible enough to do this you can expect to save up to 42% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing Harlingen

Get a feel of what it's like to fly with Southwest, United Airlines, and American Airlines from San Francisco to Harlingen by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,246 reviews

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

4,246 reviews

Southwest

8.0

Very good

4,246 reviews

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

8,900 reviews

Southwest

8.0

Very good

4,246 reviews

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

4,246 reviews

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

What are the cheapest airlines flying from San Francisco to Harlingen, Texas round-trip?
Cheapflights users have booked flights from San Francisco to Harlingen, Texas round-trip from $638. Other airlines that can offer you cheap pricing are American Airlines, from $678, and Southwest, from $750.
Can I find deals for flights from San Francisco to Harlingen that include hotel bookings?
Yes. In addition to deals on San Francisco to Harlingen flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Francisco to Harlingen?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Harlingen.
Can I find deals for business class flights from San Francisco to Harlingen?
Yes. Cheapflights offers flight deals from San Francisco 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 Francisco to Harlingen, Texas?
Currently, April is the cheapest month in which you can book a flight from San Francisco to Harlingen, Texas (average of $267). Flying from San Francisco to Harlingen, Texas in June is currently the most expensive (average of $381). 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

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from San Francisco to Harlingen

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$236	Average$424	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$246	Average$392	FlexibilityNo cancel fee	On-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$164+ Cheap flights from San Francisco to Harlingen, TX (SFO - 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Francisco 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 Francisco to Harlingen

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from San Francisco to Harlingen

Cheapest flights from San Francisco to HarlingenExplore the most affordable flight options available from San Francisco to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Explore the most affordable flight options available from San Francisco to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Francisco to Harlingen that are best for you.

Best time to book a flight from San Francisco to Harlingen

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

Cheapflights Insights

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

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

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

Find hourly flight availability from San Francisco 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 31, 2025.

Reviews of airlines servicing Harlingen

Get a feel of what it's like to fly with Southwest, United Airlines, and American Airlines from San Francisco to Harlingen by reading reviews from past customers. Users have also rated airlines 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 Francisco 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 Francisco to Harlingen, Texas round-trip?

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to Harlingen

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from San Francisco to Harlingen

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from San Francisco to Harlingen
Explore the most affordable flight options available from San Francisco to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.