HRL - SFO

$177 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 7/15. 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

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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Flights 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

Fri, Sep 12 - Mon, Sep 15
American Airlines Logo
6:35 pm - 11:15 pmHRL-SFO
6h 40m1 stop
American Airlines Logo
5:45 am - 2:19 pmSFO-HRL
6h 34m1 stop
$237American Airlines
Find Deal
Fri, Sep 12 - Mon, Sep 15
American Airlines Logo
6:35 pm - 11:15 pmHRL-SFO
6h 40m1 stop
American Airlines Logo
6:45 am - 6:05 pmSFO-HRL
9h 20m2 stops
$242American Airlines
Find Deal
Fri, Sep 12 - Mon, Sep 15
American Airlines Logo
10:11 am - 7:02 pmHRL-SFO
10h 51m2 stops
American Airlines Logo
7:45 pm - 9:41 amSFO-HRL
11h 56m2 stops
$247American Airlines
Find Deal
Fri, Sep 12 - Mon, Sep 15
American Airlines Logo
10:11 am - 7:02 pmHRL-SFO
10h 51m2 stops
American Airlines Logo
6:45 am - 6:05 pmSFO-HRL
9h 20m2 stops
$257American Airlines
Find Deal
Fri, Aug 8 - Sat, Aug 9
American Airlines Logo
10:02 am - 6:54 pmHRL-SFO
10h 52m2 stops
American Airlines Logo
12:45 am - 9:32 amSFO-HRL
6h 47m1 stop
$283American Airlines
Find Deal
Fri, Sep 12 - Mon, Sep 15
American Airlines Logo
10:11 am - 7:02 pmHRL-SFO
10h 51m2 stops
American Airlines Logo
7:45 pm - 9:41 amSFO-HRL
11h 56m2 stops
$305American Airlines
Find Deal
Fri, Aug 8 - Sat, Aug 9
American Airlines Logo
6:30 pm - 10:52 pmHRL-SFO
6h 22m1 stop
American Airlines Logo
12:45 am - 9:32 amSFO-HRL
6h 47m1 stop
$319American Airlines
Find Deal
Fri, Jul 25 - Fri, Aug 29
American Airlines Logo
7:59 pm - 12:08 amHRL-SFO
6h 09m1 stop
American Airlines Logo
11:50 pm - 9:32 amSFO-HRL
7h 42m1 stop
$332American Airlines
Find Deal
Fri, Sep 12 - Mon, Sep 15
United Airlines Logo
5:20 pm - 11:59 pmHRL-SFO
8h 39m1 stop
United Airlines Logo
5:00 am - 1:30 pmSFO-HRL
6h 30m1 stop
$375United Airlines
Find Deal
Fri, Sep 12 - Mon, Sep 15
United Airlines Logo
7:00 am - 12:19 pmHRL-SFO
7h 19m1 stop
United Airlines Logo
5:00 am - 1:30 pmSFO-HRL
6h 30m1 stop
$422United Airlines
Find Deal
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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’s the cheapest day of the week to fly from Harlingen to San Francisco?

The average price of all round-trip flights from Harlingen to San Francisco clicked on KAYAK for each day over the last 12 months.

When flying from Harlingen to San Francisco, you should consider leaving on a Wednesday and avoid Tuesdays if you are looking for the best rates. For your return to Harlingen, you’ll find the best rates on Fridays and the most expensive ones on Wednesdays.

Good to know

Low seasonAugust
High seasonAugust
Cheapest flight$177
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 22% 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 $177 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, and Star Alliance are the airline alliances operating flights between Harlingen and San Francisco, with oneworld being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from Harlingen to San Francisco are United Airlines and American Airlines. With an average price for the route of $382 and an overall rating of 7.4, United Airlines 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 7.2.

  • 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.
7.4
United AirlinesOverall score based on 8861 reviews
7.3Comfort
7.0Entertainment
7.7Boarding
6.6Food
8.1Crew
Airline reviews

Boarded plane and then delayed 1.5 hours while on the plane

4.0 OkayJake, Jul 2025BIH - SFO
Read more United Airlines reviews

Boarded plane and then delayed 1.5 hours while on the plane

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

A bit rush for transit. Food and entertainment are not available

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Boarding gate in Honolulu was staffed with a great clerk with a soothing voice despite the flight delay of over an hour. Flight attendants in the plane were all grumpy, not pleasant looking bunch. Their sour attitude showed throughout the flight. Inly able to get a select few movies started. Most of the movie links in the “free entertainment” did not work.

I flew Business Class. Rory, one of the Cabin stewards, was attentive, explained the menu, provided appropriate drinks. was

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.

Boarding was very efficient. Everyone got on board and we got on our way very quickly. It was frustrating that the entertainment app was not functioning properly. I was not able to activate some of the movies offered. The crew on this flight appears to be pretty grumpy. They had no smile on their faces. I felt like they were doing us a favor for being there.

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

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

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Flight boarded from Gate 39 at OGG, the farthest gate in the terminal. There were no Hawaiian themed amenities for the flight. The first class service was mediocre at best; I received not special welcome or recognition as an executive platinum member of American Advantage program. The flight attendants were more concerned with their cell phones than saying "thank you" to the passengers as we disembarked. Fortunately, the flight arrived at LAX a few minutes early.

Bigger seats. Board back to front! Disembark front to back!

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

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