Cheap Flights from San Francisco International to Houston

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Find the cheapest month or even day of the year to fly to Houston

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Flight deals from San Francisco International to Houston

Looking for a cheap last-minute deal or the best return flight from San Francisco International to Houston? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from San Francisco International to Houston

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Francisco International to Houston flights are currently cheapest in August.

Direct flights from San Francisco International to Houston

Alternative San Francisco International to Houston routes

Looking for the cheapest, fastest or easiest route from San Francisco International to Houston? You could fly into the following airports instead.

San Francisco to Houston: Flight information

The things to know before you go.
Cheapest flight foundR 1,521
Cheapest month to flyAugust
Average flight time3 hrs, 53 mins
Most popular airlineUnited
Average flights per week498

Finding cheap flights from San Francisco International to Houston: Frequently asked questions

There are 4 airports in Houston: Houston Hobby, Houston George Bush Intercntl., Houston Ellington Field, and Galveston.
The best price we found for a return flight from San Francisco International to Houston is R 2,572. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 53 minutes is the average flight time from San Francisco International to Houston.
United, Air New Zealand and Virgin Australia fly direct from San Francisco International to Houston.
As of June 2025, there are 498 flights per week flying from San Francisco International to Houston.
The cheapest month to fly from San Francisco International to Houston is usually July.
If you're flying from San Francisco International Airport, the cheapest airport near Houston is Houston George Bush Intercntl. – which is 25.0 km away from the centre of Houston. We've found flights into this airport from R 2,572.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Houston on Saturday, 12 July 2025.
Yes – the average flight time is 3 hours and 53 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Houston but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Houston is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 28°C. August is typically the warmest month in Houston, when it usually averages around 34°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 6°C. The rainiest month is June.
Currently, Frontier Airlines and United offer the cheapest flight tickets to Houston.

Flying from San Francisco International Airport (SFO) to Houston: what you need to know

  • The average length of a direct flight from San Francisco International Airport to Houston is 4 hours 20 minutes.

  • San Francisco International Airport is located in San Francisco. Following the UTC-5 timezone, Houston is two hours ahead of San Francisco.

  • The busiest route is from San Francisco International Airport (SFO) to George Bush Intercontinental Airport (IAH). Take your pick of 66 services every week between these two airports. If you'd like to get on your way as soon as you can, the earliest flight from SFO to IAH is the 00:24 United Airlines service. If you'd rather fly out later on, the final departure is at 23:59 with United Airlines.

  • To avoid missing your SFO to Houston flight, allow plenty of time to check in and find your gate. Arriving two hours before international departures and one hour before domestic flights is the general travel rule.

  • If you're travelling during a bank holiday or another peak period, allow extra time. A good general rule is two hours ahead of domestic flights and up to four hours before international departures. Security and check-in lines will be longer.

  • Direct San Francisco International Airport to Houston tickets are available for booking. George Bush Intercontinental Airport (IAH) is where you'll step off the plane.

  • Check out the offers from United Airlines. This carrier operates direct flights from San Francisco International Airport to Houston.

  • Travelling from central San Francisco to SFO takes about 45 minutes by public transport. If you ride-share, drive or take a cab, you'll cover the 18 kilometres in 20 minutes or so, depending on traffic.

  • Looking for a hotel near SFO? If you're boarding an early flight from San Francisco International Airport to Houston, these stays put the terminal practically at your doorstep:

  • Of the departures from San Francisco International Airport, 77.36% arrive as scheduled at their destination.

How to find the cheapest flights from San Francisco International Airport (SFO) to Houston

  • R 1,521 is currently the lowest price for a one-way San Francisco International Airport to Houston flight. A return flight ticket starts at R 2,572. These prices may change based on demand.

  • Score cheap flights from SFO to Houston by booking one month ahead. According to our research, that's the sweet spot for picking up a bargain.

  • The best month for picking up cheap San Francisco International Airport to Houston tickets is May. Use the 'Whole month' tool to compare prices, then select the dates offering the lowest fares.

  • There's no need to keep looking every day to see if fares have dropped when you set up a Price Alert. We'll notify you as soon as there's an even bigger deal on cheap flights from SFO to Houston.

  • Tailor your flights with filters. Choose your ideal arrival and departure times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' flights from San Francisco International Airport to Houston.

Airports in Houston

George Bush Intercontinental Airport (IAH)

William P. Hobby Airport (HOU)

  • The centre of Houston is around 19 kilometres from William P. Hobby Airport (HOU). Once your flight from San Francisco International Airport to Houston has hit the runway and you've made your way out of the airport, the drive should take about 20 minutes.

  • If you travel by public transport, you'll get to the city centre in 1 hour 40 minutes or so.

  • There are some comfortable places to rest your head close to HOU. Tuck yourself in and get cosy after your SFO to Houston flight at any of these perfectly located options:

  • The fastest way to get to where you're going is with a William P. Hobby Airport rental car. Grab your wheels from Easirent, Dollar or Thrifty and set off in the blink of an eye.

  • Get what you want, not just what's left over. Booking your ride from HOU four weeks ahead of time often means more savings and a greater selection of vehicles.

  • The address for William P. Hobby Airport is 7800 Airport Boulevard.

Best time to go to Houston

  • Visit Houston in peak season if you want a busy atmosphere, but remember that hotel prices are typically higher. Alternatively, book flights from San Francisco International Airport to Houston during low season when prices are cheaper and crowds are smaller.

  • The warmest month in Houston is August, with temperatures ranging between 24ºC (75ºF) and 40ºC (104ºF). Book your San Francisco International Airport to Houston flight ticket then if this is the type of weather you enjoy.

  • Search for cheap tickets from SFO to Houston in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 5ºC (41ºF) and 19ºC (66ºF) on average.

More about Houston

Explore more of United States

  • San Antonio is just one of the many places in United States waiting to be explored after you've seen Houston. Around 306 kilometres away to the west, its top attractions include The San Antonio River Walk, San Antonio Missions National Historical Park and San Fernando Cathedral.

  • Dallas is another well-known destination in United States and is around 370 kilometres north of Houston. No journey is complete without a visit to Dallas Arboretum and Botanical Gardens, Perot Museum of Nature and Science and Dallas Museum of Art.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.