HRL - SFO

$119 Find Cheap Flights from Harlingen to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Harlingen to San Francisco departing on 9/23. 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

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Harlingen to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Harlingen to San Francisco, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$237
Typical prices: $399-$519
American Airlines
Thu 8/20Tue 8/25
HRL - SFO • 1 stop
Cheapest one-way
$119
United Airlines
Wed 9/23
HRL - SFO • 1 stop
Top airlines
Cheapest • from $237 (round-trip)
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 Harlingen and San Francisco. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $370 (round-trip)
Shortest trip • 6h 56m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Harlingen to San Francisco 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 Harlingen to San Francisco

Thu, Aug 20 - Tue, Aug 25
American Airlines Logo
5:04 pm - 12:11 am
HRL
-
SFO
9h 07m
1 stop
American Airlines Logo
11:30 pm - 10:04 am
SFO
-
HRL
8h 34m
1 stop
$237American Airlines
Tue, Aug 18 - Sat, Aug 22
Southwest Logo
1:45 pm - 6:40 pm
HRL
-
SFO
6h 55m
1 stop
Southwest Logo
5:00 am - 3:50 pm
SFO
-
HRL
8h 50m
2 stops
$242Southwest
Tue, Aug 18 - Sat, Aug 22
Southwest Logo
1:45 pm - 7:05 pm
HRL
-
SFO
7h 20m
2 stops
Southwest Logo
5:00 am - 3:50 pm
SFO
-
HRL
8h 50m
2 stops
$247Southwest
Tue, Aug 18 - Sat, Aug 22
American Airlines Logo
5:54 am - 10:07 am
HRL
-
SFO
6h 13m
1 stop
American Airlines Logo
11:30 pm - 10:04 am
SFO
-
HRL
8h 34m
1 stop
$281American Airlines
Thu, Aug 20 - Tue, Aug 25
Southwest Logo
11:55 am - 5:35 pm
HRL
-
SFO
7h 40m
1 stop
Southwest Logo
6:35 am - 4:45 pm
SFO
-
HRL
8h 10m
2 stops
$282Southwest
Thu, Aug 20 - Tue, Aug 25
Southwest Logo
11:55 am - 7:15 pm
HRL
-
SFO
9h 20m
2 stops
Southwest Logo
5:50 am - 3:50 pm
SFO
-
HRL
8h 00m
2 stops
$287Southwest
Thu, Aug 6 - Tue, Aug 11
American Airlines Logo
8:03 pm - 12:11 am
HRL
-
SFO
6h 08m
1 stop
American Airlines Logo
11:30 pm - 10:04 am
SFO
-
HRL
8h 34m
1 stop
$318American Airlines
Thu, Sep 3 - Sun, Sep 6
American Airlines Logo
8:03 pm - 12:11 am
HRL
-
SFO
6h 08m
1 stop
American Airlines Logo
6:36 am - 4:27 pm
SFO
-
HRL
7h 51m
1 stop
$319American Airlines
Tue, Nov 17 - Wed, Nov 18
United Airlines Logo
5:05 am - 12:19 pm
HRL
-
SFO
9h 14m
1 stop
United Airlines Logo
5:00 am - 4:00 pm
SFO
-
HRL
9h 00m
1 stop
$337United Airlines
Thu, Aug 6 - Mon, Aug 10
American Airlines Logo
8:03 pm - 12:11 am
HRL
-
SFO
6h 08m
1 stop
American Airlines Logo
11:30 pm - 10:04 am
SFO
-
HRL
8h 34m
1 stop
$345American Airlines
Booking Insights

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Harlingen to San Francisco, 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 Harlingen to San Francisco is May, where tickets cost $0 (return) on average. On the other hand, the most expensive months are October and November, where the average cost of round-trip tickets is $690 and $644 respectively.

Good to know

Low seasonSeptember
Cheapest flight$119
Best time to beat the crowds with an average 52% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Harlingen to San Francisco

When to book flights from Harlingen to San Francisco

Are your dates flexible? Find out the best times to travel from Harlingen to San Francisco 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 Harlingen to San Francisco

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

    In the last 5 days, the lowest price for a flight from Harlingen to San Francisco was $119 for a one-way ticket and $237 for a round-trip.

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

    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 Harlingen to San Francisco?

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

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

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

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

    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 Harlingen to San Francisco.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Harlingen 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 Harlingen to San Francisco?

    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 San Francisco with an airline and back to Harlingen with another airline. Booking your flights between Harlingen and SFO 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 Harlingen to San Francisco?

    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 San Francisco from Harlingen 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 Harlingen to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Harlingen to San Francisco. 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 Harlingen to San Francisco? 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 11775 reviews
7.5Boarding
7.2Comfort
7.9Crew
6.4Food
6.8Entertainment
Airline reviews

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

6.0 GoodElizabeth, May 2026
DFW - SFO
Read more American Airlines reviews

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

Flight: Started on time. Comfortable flight. Arrived on time. Crew: Very cordial and helpful. Drinks and snack was served with a smile. Overall enjoyed the trip. Regards, Hari Doss Chanchala Doss

A first class seat should fit a fat person, and this doesn't. The trays in the armrest are less functional than an ordinary tray in the back of the seat.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

This was a horrible experience. For a first class experience, my chair was held together by 3M tape - and I have a photo. The crew weren’t very attentive, somewhat dismissive and forgot my drink and snack, the chair reclined about 3 inches on a 6-hour cross country flight. I was also not informed that there was no lounge available in Newark airport because of renovations, so all around this was one of the worst experiences and I would actively avoid both American and Alaska Air going forward.

Long 5 hour and 45 min flight and only one drink service and cookie snack

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

This flight didn’t happen because AA agents didn’t let us board the flight

We boarded after several delays due to mechanical failure and a gate change. The seat cushion in the exit row was very compressed and offered no cushion, making the four-hour journey reasonably uncomfortable. The WiFi worked for a few people, but for most, it did not, and you cannot get entertainment unless you can connect—American Airlines flights do not have seatback screens, and you must use your mobile phone.

Missed my second flight because the first one was 1.5 hours delayed. Two hours on the plane and we all had to change the plane. Absolutely horrible experience. Never flying American Airlines again

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

Information on your arrival and departure airports