SFO

$122 Find Cheap Flights from Houston 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 Houston to San Francisco departing on 2/20. 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 Houston to San Francisco.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to San Francisco.
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Everything you should know

Cheapest round-trip
$269
Overall average: $398
United Airlines
Fri 2/27Fri 3/6
IAH - SFO • Non-stop
Cheapest one-way
$122
Typical prices: $160-$274
Frontier
Fri 2/20
IAH - SFO • 1 stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
IAH's free Wi-Fi is available across all terminals.
For a quick city connection, take BART from SFO.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
United Airlines
Cheapest • from $269 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
IAH
-
SFO
Cheapest
IAH
-
SFO
Most popular
Insights
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Flight Deals

Cheap Flights from Houston to San Francisco

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

Fri, Feb 27 - Fri, Mar 6
United Airlines Logo
9:30 pm - 11:59 pm
IAH
-
SFO
4h 29mnonstop
United Airlines Logo
7:10 pm - 12:56 am
SFO
-
IAH
3h 46mnonstop
$269United Airlines
Fri, Feb 20 - Sun, Feb 22
Frontier Logo
7:34 pm - 12:28 am
IAH
-
SFO
6h 54m
1 stop
Frontier Logo
9:28 am - 7:23 pm
SFO
-
IAH
7h 55m
1 stop
$270Frontier
Fri, Feb 27 - Tue, Mar 3
Alaska Airlines Logo
5:33 pm - 11:44 pm
IAH
-
SFO
8h 11m
1 stop
Alaska Airlines Logo
7:50 am - 11:54 pm
SFO
-
IAH
14h 04m
2 stops
$271Alaska Airlines
Sun, Mar 1 - Thu, Mar 5
Frontier Logo
5:30 am - 12:28 am
IAH
-
SFO
44h 58m
2 stops
Frontier Logo
10:40 pm - 10:58 pm
SFO
-
IAH
22h 18m
1 stop
$273Frontier
Fri, Feb 27 - Tue, Mar 3
Delta Logo
5:19 pm - 11:49 pm
HOU
-
SFO
8h 30m
1 stop
Delta Logo
10:00 pm - 10:01 am
SFO
-
HOU
10h 01m
1 stop
$289Delta
Wed, Mar 4 - Sat, Mar 7
Southwest Logo
6:15 am - 2:20 pm
HOU
-
SFO
10h 05m
2 stops
Southwest Logo
7:55 pm - 5:00 am
SFO
-
HOU
7h 05m
1 stop
$294Southwest
Sat, Feb 28 - Sat, Mar 7
American Airlines Logo
10:13 am - 7:57 pm
HOU
-
SFO
11h 44m
1 stop
American Airlines Logo
6:00 am - 3:51 pm
SFO
-
HOU
7h 51m
1 stop
$299American Airlines
Thu, May 7 - Mon, May 11
Southwest Logo
6:00 am - 12:35 pm
HOU
-
SFO
8h 35m
2 stops
Southwest Logo
1:25 pm - 12:55 am
SFO
-
HOU
9h 30m
1 stop
$300Southwest
Fri, Mar 13 - Mon, Mar 16
Delta Logo
11:33 am - 5:36 pm
HOU
-
SFO
8h 03m
1 stop
Delta Logo
10:35 pm - 10:23 am
SFO
-
HOU
9h 48m
1 stop
$314Delta
Thu, Feb 19 - Tue, Feb 24
American Airlines Logo
8:16 pm - 12:48 am
HOU
-
SFO
6h 32m
1 stop
American Airlines Logo
6:00 am - 3:51 pm
SFO
-
HOU
7h 51m
1 stop
$323American Airlines
Booking Insights

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

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

What is the cheapest Houston to San Francisco flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Houston to San Francisco costs $269 on the route between Houston George Bush Intcntl Airport (IAH) and San Francisco (SFO). It is also the most popular route.

What’s the cheapest day of the week to fly from Houston to San Francisco?

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

Your flight ticket price will generally be cheaper if you fly to San Francisco on a Friday and more expensive on a Monday. On your return trip to Houston, you should consider flying back on a Thursday, and avoid Mondays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Houston 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 Houston to San Francisco is February, where tickets cost $294 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $469 and $465 respectively.

How far in advance should I book a flight from Houston to San Francisco?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Houston to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Houston to San Francisco, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Expert advice

Expert advice for your flight from Houston to San Francisco

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
John Walton

John Walton

Expert on IAH

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Blane Bachelor

Blane Bachelor

Expert on SFO

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Good to know

Cheapest flight$122
Flight from Houston George Bush Airport to San Francisco

When to book flights from Houston to San Francisco

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

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

    In the last 3 days, the lowest price for a flight from Houston to San Francisco was $122 for a one-way ticket and $269 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Houston and on arrival in San Francisco.

  • Which airports will I be using when flying from Houston to San Francisco?

    When flying out of Houston you will be using one of these airports: Houston Hobby or Houston George Bush Intcntl. You will be landing at San Francisco.

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

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

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

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Houston and San Francisco, with SkyTeam being the most commonly used for this route.

  • What is the most popular layover when flying to San Francisco from Houston?

    Denver is the most popular layover city among KAYAK users traveling from Houston to San Francisco.

  • How does KAYAK find such low prices on flights from Houston 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 Houston to San Francisco.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Houston 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 Houston 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 Houston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Houston 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 Houston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Houston to San Francisco?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Houston to San Francisco.
Find which airlines fly direct from Houston to San Francisco Airport, which days they fly and book direct flights.

Direct departures

Houston to San Francisco

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

San Francisco to Houston

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 5 airlines serving from Houston to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Houston 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 Houston 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 4273 reviews
7.5Entertainment
8.1Boarding
8.0Comfort
7.0Food
8.6Crew
Airline reviews

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

2.0 MediocreAnonymous, Jan 2026
SFO - SAN
Read more Southwest reviews

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.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Connecting flight is on time and boarding was a breeze!

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

The crew took good care of us. The flight from ATL to SFO is a longer one, and there were multiple beverage offerings. I like the 757's that Delta uses. Good airplane that is comfortable. I do wish Delta would separate Priority boarding from the better seats. I would gladly take a smaller seat in an open row than be jammed into Comfort just to get priority boarding, just to make sure I don't have to check a bag.

Gate agent rushed to fill hot jetway with crowd so it took over 12 minutes to go from gate to plane. Just like a discount airline Pooly prepared cabin and third time that claim of rough air prevented any cabin service. Friends on a Southwest flight at similar time had service.

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

Food was surprisingly good but the WiFi was not great

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

Flight was late - I was downgraded from first class to coach

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

7 hours delayed due to operational issues on United’s end. Basically laziness.

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

1. when we went to check in, our 2 first class seats had been CANCELED and the flight was sold out. This was done without our prior knowledge. It was all we could do to restore one first class seat for my wife and I flew economy. 2, Our flight home was scheduled to leave at 10:30 pm. Due to tsunami warnings, the roads were closed and our flight status was uncertain as to whether it would leave as scheduled. It was announced that it would now leave at 11:20 pm and the roads were now open since the tsunami had come and gone. We made a mad dash to the airport and checked in. Delays were announced at 12:30 pm, 1:30 am, 2:30 am and at 3:30 am it was canceled. Since this was a flight due to natural (tsunami) causes, there was no compensation. We were told to return at 1:00 pm the next day and our baggage would be kept on the plane since the same plane was going to leave at 1:00 pm. We had to return to our hotel for the rest of the night. The same plane did not leave at 1:00 pm and our baggage was gone! All in all, it was a miserable performance by UA. Information was hard to obtain and no one knew what was going on and what was going to happen. Hundreds of passengers slept on the floor, chairs, etc. No food and no water was made available to the passengers. It was a situation where UA could care less what was going on. As a one million mile flyer, I had not experienced anything like this before and it was hugely disappointing!

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

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

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

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

Delayed flight that lead to a missed connection and a 5-hour trip became a 12-hour flight 🙄

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

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

i was unable to check in the flight. refund requested

I think Frontier was very good at communication. Their app worked very well. Loading was great and the flight was nice and easy.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

Decent clean onboard experience. Okay discount airline experience. Unfortunately, any customer service interactions are difficult and unhelpful. There is no service. Also, a premium seat only gets you premium boarding if you line up first. Once they start general boarding you must go to the back of the line. Not very premium

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

We were delayed three times ,and that destroyed my plans, and reservations

Very bad! No good service delayed my second connection flight

They canceled flight. Hard to believe there was even a plane incoming for us to get on

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

Information on your arrival and departure airports