SFO - HRL

$124 Find Cheap Flights from San Francisco to Harlingen - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Harlingen departing on 11/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$247
Typical prices: $398-$599
United Airlines
Tue 10/27Thu 10/29
SFO - HRL • 1 stop
Cheapest one-way
$124
Southwest
Tue 11/3
SFO - HRL • 1 stop
Top airlines
United Airlines
Cheapest • from $247 (round-trip)
American Airlines
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Francisco and Harlingen. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Austin (AUS)
Cheapest • Avg $398 (round-trip)
Austin (AUS)
Shortest trip • 5h 10m (one-way)
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 100% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Harlingen!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Francisco to Harlingen (SFO-HRL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Harlingen that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Harlingen

Tue, Oct 27 - Thu, Oct 29
United Airlines Logo
7:15 am - 4:01 pm
SFO
-
HRL
6h 46m
1 stop
United Airlines Logo
7:10 am - 12:19 pm
HRL
-
SFO
7h 09m
1 stop
$247United Airlines
Tue, Oct 27 - Thu, Oct 29
Southwest Logo
12:00 pm - 8:55 pm
SFO
-
HRL
6h 55m
1 stop
Southwest Logo
5:30 pm - 11:15 pm
HRL
-
SFO
7h 45m
2 stops
$252Southwest
Tue, Oct 27 - Thu, Oct 29
Southwest Logo
8:10 am - 9:55 pm
SFO
-
HRL
11h 45m
2 stops
Southwest Logo
5:30 pm - 12:35 am
HRL
-
SFO
9h 05m
2 stops
$257Southwest
Fri, Oct 9 - Sun, Oct 11
Southwest Logo
6:25 am - 5:50 pm
SFO
-
HRL
9h 25m
2 stops
Southwest Logo
6:00 am - 12:30 pm
HRL
-
SFO
8h 30m
2 stops
$323Southwest
Sun, Aug 9 - Thu, Aug 13
American Airlines Logo
5:30 am - 4:27 pm
SFO
-
HRL
8h 57m
1 stop
American Airlines Logo
8:03 pm - 12:11 am
HRL
-
SFO
6h 08m
1 stop
$329American Airlines
Sun, Aug 23 - Sun, Aug 30
American Airlines Logo
5:30 am - 4:27 pm
SFO
-
HRL
8h 57m
1 stop
American Airlines Logo
8:03 pm - 12:11 am
HRL
-
SFO
6h 08m
1 stop
$345American Airlines
Sun, Aug 23 - Sun, Aug 30
American Airlines Logo
5:30 am - 4:27 pm
SFO
-
HRL
8h 57m
1 stop
American Airlines Logo
5:54 am - 12:49 pm
HRL
-
SFO
8h 55m
2 stops
$373American Airlines
Fri, Oct 9 - Sun, Oct 11
Southwest Logo
1:55 pm - 10:50 pm
SFO
-
HRL
6h 55m
1 stop
Southwest Logo
6:00 am - 12:30 pm
HRL
-
SFO
8h 30m
2 stops
$384Southwest
Sat, Sep 26 - Tue, Sep 29
United Airlines Logo
5:00 am - 3:59 pm
SFO
-
HRL
8h 59m
1 stop
United Airlines Logo
7:15 am - 11:44 am
HRL
-
SFO
6h 29m
1 stop
$393United Airlines
Sun, Aug 9 - Thu, Aug 13
American Airlines Logo
5:30 am - 4:27 pm
SFO
-
HRL
8h 57m
1 stop
American Airlines Logo
10:34 am - 7:05 pm
HRL
-
SFO
10h 31m
2 stops
$419American Airlines
Booking Insights

KAYAK's insights & trends for San Francisco to Harlingen flights

Get data-powered insights and trends into flights from San Francisco to Harlingen to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Harlingen, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to Harlingen is January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are April and June, where the average cost of round-trip tickets is $765 and $563 respectively.

Find deals

Good to know

Low season

October

Cheapest flight

$124
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from San Francisco to Harlingen

When to book flights from San Francisco to Harlingen

Are your dates flexible? Find out the best times to travel from San Francisco to Harlingen based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Harlingen

  • What is the cheapest flight from San Francisco to Harlingen?

    In the last 5 days, the lowest price for a flight from San Francisco to Harlingen was $124 for a one-way ticket and $247 for a round-trip.

  • Do I need a passport to fly between San Francisco and Harlingen?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from San Francisco to Harlingen?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Francisco to Harlingen?

    oneworld is the only airline alliance operating flights between San Francisco and Harlingen.

  • How does KAYAK find such low prices on flights from San Francisco to Harlingen?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Harlingen.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Harlingen?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Harlingen from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Harlingen?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Harlingen with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and HRL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Harlingen?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Harlingen from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from San Francisco to Harlingen

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Harlingen. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Harlingen? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11837 reviews
6.4Food
7.9Crew
7.5Boarding
7.2Comfort
6.8Entertainment
Airline reviews

Not good. Flight crew, was not friendly and just shoved stuff at us. Not the way I like to travel.

4.0 OkayJon, Jul 2026
SFO - DFW
Read more American Airlines reviews

Not good. Flight crew, was not friendly and just shoved stuff at us. Not the way I like to travel.

Aside from the little delay, overall was flight good. Made it safely. Thanks!

Over the course of 7 months of travel, I can count on my hand the number of times the flight has departed on time. Majority of the instances have been related to non-weather reasons. Would not recommend flying this Airline

I had no problems but the changing of planes that I was supposed to be on was confusing. Maybe it would be helpful to let people know your flight changed. Not everyone understands airports or how flying works.

Flight was delayed multiple times without giving any particular reason and the only thing that was communicated was that 'Aircraft is getting ready'. I was stuck at SFO airport for 15 hours and finally took Southwest Airlines flight back home to Dallas.

Not good. One of my luggage is missing. And until now they can’t find it

Dloght delayed by 2.5 hrs . Common theme in my last four american floghts

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

After several delays and being rebooked onto a layer flight, I had to speak to three AA agents for baggage claim to get an attendant. All were in foul mode and reluctant to assist or offer any assistance.

Mobility assistance at DFW is A JOKE!!! Totally disorganized, ineffective and annoying. Ended up having to walk and find our own way for a good part of the very, very long walk between gates. Worst assistance I have ever experienced.

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

Information on your arrival and departure airports

San Francisco (SFO)
Harlingen (HRL)