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 4/28. 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: $382-$345
United Airlines
Wed 5/6Tue 5/12
HRL - SFO • 1 stop
Cheapest one-way
$119
United Airlines
Tue 4/28
HRL - SFO • 1 stop
Top airlines
Cheapest • from $237 (round-trip)
Best reviews • 8.0 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 $355 (round-trip)
Shortest trip • 6h 46m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 50% 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

Wed, May 6 - Tue, May 12
United Airlines Logo
7:00 am - 12:18 pm
HRL
-
SFO
7h 18m
1 stop
United Airlines Logo
12:45 am - 11:23 am
SFO
-
HRL
8h 38m
1 stop
$237United Airlines
Tue, Apr 21 - Fri, Apr 24
United Airlines Logo
5:18 pm - 10:30 pm
HRL
-
SFO
7h 12m
1 stop
United Airlines Logo
12:45 am - 11:23 am
SFO
-
HRL
8h 38m
1 stop
$257United Airlines
Tue, Apr 21 - Sat, Apr 25
American Airlines Logo
10:47 am - 7:20 pm
HRL
-
SFO
10h 33m
2 stops
American Airlines Logo
2:10 pm - 10:51 pm
SFO
-
HRL
6h 41m
1 stop
$262American Airlines
Tue, Apr 21 - Sat, Apr 25
Southwest Logo
4:40 pm - 11:15 pm
HRL
-
SFO
8h 35m
2 stops
Southwest Logo
5:00 am - 3:00 pm
SFO
-
HRL
8h 00m
2 stops
$267Southwest
Wed, Apr 22 - Sat, Apr 25
United Airlines Logo
7:00 am - 12:18 pm
HRL
-
SFO
7h 18m
1 stop
United Airlines Logo
12:45 am - 11:23 am
SFO
-
HRL
8h 38m
1 stop
$277United Airlines
Wed, May 6 - Wed, May 13
Southwest Logo
12:45 pm - 7:55 pm
HRL
-
SFO
9h 10m
2 stops
Southwest Logo
10:30 am - 10:00 pm
SFO
-
HRL
9h 30m
2 stops
$323Southwest
Wed, Apr 29 - Fri, May 1
United Airlines Logo
7:00 am - 12:18 pm
HRL
-
SFO
7h 18m
1 stop
United Airlines Logo
12:45 am - 11:23 am
SFO
-
HRL
8h 38m
1 stop
$337United Airlines
Sun, Apr 19 - Thu, Apr 23
United Airlines Logo
7:00 am - 12:18 pm
HRL
-
SFO
7h 18m
1 stop
United Airlines Logo
5:00 am - 4:04 pm
SFO
-
HRL
9h 04m
1 stop
$341United Airlines
Wed, May 6 - Wed, May 13
Southwest Logo
7:10 am - 1:05 pm
HRL
-
SFO
7h 55m
1 stop
Southwest Logo
10:30 am - 10:00 pm
SFO
-
HRL
9h 30m
2 stops
$343Southwest
Wed, Apr 22 - Sun, Apr 26
American Airlines Logo
10:47 am - 7:20 pm
HRL
-
SFO
10h 33m
2 stops
American Airlines Logo
5:20 am - 2:17 pm
SFO
-
HRL
6h 57m
1 stop
$349American 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 September, where tickets cost $198 (return) on average. On the other hand, the most expensive months are April and December, where the average cost of round-trip tickets is $613 and $483 respectively.

Good to know

Low seasonFebruary
Cheapest flight$119
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 20% 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 3 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.

  • Which is the best airline for flights from Harlingen to San Francisco, Southwest or American Airlines?

    The two airlines most popular with KAYAK users for flights from Harlingen to San Francisco are Southwest and American Airlines. With an average price for the route of $318 and an overall rating of 8.0, Southwest is the most popular choice. American Airlines is also a great choice for the route, with an average price of $400 and an overall rating of 7.1.

  • 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 airlines 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.
8.0
SouthwestOverall score based on 4337 reviews
8.6Crew
7.0Food
8.1Boarding
7.5Entertainment
8.0Comfort
Airline reviews

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

4.0 Okaysangeetha, Apr 2026
AUS - SJC
Read more Southwest reviews

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

The charges were ridiculous for an hour flight and the turbulence was very scary.

3 hour delay. Had to change plans and was still delayed.

The flight crew was extremely rude and especially not helpful when our flight was delayed.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

Buying ticket from kayak instant booking was a huge mistake, never to be repeated again! The Kayak didn’t book the tickets directly, it handed it off to a third party Underpricer, that booked a code shared American Airlines flight operated by Cathay Pacific!! When managing the booking American Airlines would recognize the itinerary but wouldn’t let me do anything stating, the flight is operated by Cathay Pacific so go to their website. Cathay Pacific would recognize the itinerary, neither by reservation ID or ticket number…asking to reach out to the third party Underpricer….calling Underpricer resulted in no help like seat requests, mileage number or upgrade request, 15hr layover accommodation voucher guidance…so net in net avoid booking through three layers of intermediaries

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Delayed for mechanical and no updates on what was happening and how long the delay might be.

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.

The experience at checkin for my American Airlines flight from Sacramento to LAX was very good including the assistance I received in getting my bags checked in and boarding passes printed. Was pleasantly surprised the my bags were checked through all the way to my destination at Clark International Airport in Angeles, Philippines.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

did not have enough meal for first class passengers so offer us snack

Amazing I love American. I’ll never fly anyone else if I can help it.

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

Information on your arrival and departure airports