Cheapest airlines flights from Houston to San Francisco

You can choose from 2 airlines that fly from Houston to San Francisco, including United Airlines, Frontier Airlines, United Airlines has lowest fares on this route.
United Airlines logo United Airlines
Frontier Airlines logo Frontier Airlines
Airlines are determined based on actual purchased flight tickets from Houston to San Francisco according to previous 12 months data from Trip.com.

Search for direct flights from Houston to San Francisco in the next 3 months. Based on Trip.com's latest 7-day flight data, one-way direct flights start at US$168, and round-trip direct flights start at US$351.

Displayed flight fares from Houston to San Francisco are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Houston to San Francisco Flight Details

The distance between Houston and San Francisco is about 2,648.73 km. The average flying time from Houston to San Francisco is around 4 hours 29 minutes. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is November.

Cheapest one-way flight priceUS$58
Cheapest return ticket priceUS$128
Cheapest monthNovember
Peak season for travelJuly
Flight distance2,648.73 km
Average flight time4 hours 29 minutes
Popular airlineUnited Airlines
Flight statistics for the Houston–San Francisco route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Insights on Flights from Houston to San Francisco

Which month has the cheapest one-way flights from Houston to San Francisco?

The average price of one-way flights from Houston to San Francisco purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Houston to San Francisco is Feb, with an average price of US$262; while the month with the highest flight price is usually Dec, with an average price of up to US$456.

US$456
US$359
US$262
US$165
  • US$262
    Feb
  • US$377
    Mar
  • US$285
    Apr
  • US$352
    May
  • US$331
    Jun
  • US$411
    Jul
  • US$342
    Aug
  • US$285
    Sep
  • US$443
    Oct
  • US$392
    Nov
  • US$456
    Dec
  • US$404
    Jan

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

Average weekly flight prices from Houston to San Francisco by travel date (Based on Trip.com’s past 12 months of data)

Based on Trip.com’s past 12 months of flight data, the cheapest day to fly from Houston to San Francisco is Mon, with average prices lower than on other days. Avoid Fri, as prices are usually highest then.

US$451
US$385
US$318
US$252
  • US$318
    Mon
  • US$364
    Tue
  • US$403
    Wed
  • US$331
    Thu
  • US$451
    Fri
  • US$352
    Sat
  • US$360
    Sun

Frequently Asked Questions

  • What are the cheapest flights from Houston to San Francisco (HOU-SFO)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$58 on Cheapest nonstop routes (e.g. IAH to SFO on Sat, Feb 28), while Frontier Airlines offers Cheapest nonstop round-trips from US$128 departing on Thu, Feb 26 and returning on Thu, Mar 5.
  • At the moment, you can catch a nonstop flight from Houston to San Francisco with the following airlines, including: United Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 4 hours 29 minutes to fly from Houston to San Francisco.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Houston to San Francisco is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 70 flight per week flying from Houston to San Francisco. You can check the weekly schedule for popular airlines on this route below: United Airlines: S/M/T/W/T/F/S -- UA487 (08:33)
  • To find best deals on flights from Houston to San Francisco, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Feb 28, with one-way flights priced at just US$58.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for San Francisco travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Houston to San Francisco is November, when demand for travel is lower.
  • After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Houston to San Francisco on February 25, 2026 with Frontier Airlines, with prices starting at US$59.
  • You can land at any one of the following hubs in San Francisco, with George Bush Intercontinental Airport to San Francisco International Airport (IAH-SFO) is by far the most common option on this route: San Francisco International Airport (SFO).
  • The time difference between San Francisco and Houston is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com Airline Insights on Flights from Houston to San Francisco

Which airline offers the cheapest direct flights from Houston to San Francisco?

Data is based on the average price of all nonstop flights from Houston to San Francisco on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, Alaska Airlines provides the lowest-priced direct flights from Houston to San Francisco, with fares starting at US$145.

US$145
US$292
US$438
US$584
Alaska Airlines
US$145
Alaska Airlines
Frontier Airlines
US$168
Frontier Airlines
Delta Air Lines
US$272
Delta Air Lines
United Airlines
US$462
United Airlines
American Airlines
US$584
American Airlines

Which airline operates the most flights from Houston to San Francisco?

Total flights from Houston to San Francisco across all airlines. (Based on Trip.com data from the past month)

Based on Trip.com’s data from the past month, United Airlines operates the most frequent flights from Houston to San Francisco, with 84 flights per week.

0
8
46
84
United Airlines
84
United Airlines
Air New Zealand
74
Air New Zealand
Virgin Australia
70
Virgin Australia
Emirates
15
Emirates
Asiana Airlines
8
Asiana Airlines
All Nippon Airways
8
All Nippon Airways

How many flights fly from Houston to San Francisco daily?

The data is based on the flight numbers for each day of the week from Houston to San Francisco within the Trip.com database over the past month.

Based on the past month's historical data from Trip.com, the number of flights from Houston to San Francisco is the highest on Saturday and the lowest on Monday.

176
152
128
104
Highest
128
Mon
140
Tue
142
Wed
136
Thu
175
Fri
176
Sat
154
Sun