Houston
Houston
San Francisco
San Francisco
Flight

Houston to San Francisco

Updated: 28 May 2026

The most practical way to travel from Houston to San Francisco is by air, connecting George Bush Intercontinental Airport (IAH) to San Francisco International Airport (SFO). Direct flights take approximately 4 hours. Driving is a massive cross-country journey of over 3,000 kilometers, taking roughly 28 hours via I-10 and I-5. San Francisco is a global tech and cultural hub, while Houston is a major energy center. Flying is highly recommended to save time.

Total Distance: Driving distance 3,050 km, Air distance 2,600 km.
Fastest Way
Direct flight from IAH to SFO takes 4 hours.
Cheapest Way
Booking a round-trip flight at least four weeks in advance is the cheapest option.
Compare Houston to San Francisco Routes
Flight
Direct
Duration
4 hours
Avg Price
$200-$500
Operator
United Airlines
Route
IAH to SFO

United offers the most frequent direct service on this route.

Travel Tips
  • Airport Transit
    Use the BART train or ride-share to get from SFO to downtown San Francisco.
  • Weather
    San Francisco weather is cool and foggy; pack layers if traveling at any time of year.
  • Dining
    Try the diverse food scene in San Francisco, from seafood to fine dining.
  • Booking
    Check for flight deals on Tuesday afternoons for the best prices.
  • Packing
    Bring comfortable walking shoes for exploring San Francisco's diverse neighborhoods.
Safety Tips
  • Stay Aware
    Stick to well-traveled areas when exploring the city at night.
  • Travel Documents
    Keep your ID and boarding pass accessible during your flight.
  • Health
    Stay hydrated during your flight to combat dry cabin air.
  • Public Transit
    Keep your belongings secure while riding the BART train.
People Also Ask
  • Are there direct flights?
    Yes, United Airlines operates direct flights between IAH and SFO.
  • How long is the flight?
    A direct flight takes about 4 hours.
  • What is the best way to travel?
    Flying is the most efficient and practical method.
  • Is San Francisco walkable?
    Yes, downtown San Francisco is very walkable and has excellent public transit.
  • What is the time difference?
    San Francisco is two hours behind Houston.
Quick Info
  • From Houston, Texas, United States
  • To San Francisco, California, United States
  • Modes
Best Time to Travel

September to November for mild weather in San Francisco.

Things to Do in San Francisco
1
Golden Gate Bridge
Visit this iconic bridge, a symbol of San Francisco and a marvel of engineering.
2
Alcatraz Island
Take a ferry to this historic island, home to the famous former federal prison.
3
Space Center Houston
Before leaving Houston, visit this world-class museum dedicated to space exploration.
4
Fisherman's Wharf
Explore this popular tourist area, featuring shops, restaurants, and sea lions.
Tags
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