Direct (nonstop) flights from Houston to San Francisco
1 airline flys nonstop from George Bush Intcntl Houston (IAH) to San Francisco International (SFO). It's 1,635 miles (2,632 km), about 4h 22m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 31, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Houston to San Francisco with one stop · direct emits 276 kg CO₂ per passenger
Looking for the return flight?
SFO → IAH: Flights from San Francisco to HoustonOther direct flights from Houston
Direct flights from San Francisco (SFO)
Frequently Asked Questions
How long is the direct flight from Houston to San Francisco?
A nonstop flight from Houston (IAH) to San Francisco (SFO) takes approximately 4 hours and 22 minutes. The distance is 1,635 miles (2,632 km).
Which airlines fly nonstop from Houston to San Francisco?
Just United Airlines.
Is there a nonstop flight from Houston to San Francisco?
Yes. 1 airline: United Airlines.
How far is Houston from San Francisco?
The flight distance from Houston to San Francisco is 1,635 miles (2,632 km), measured as the great-circle (shortest air) distance.
What type of aircraft flies from Houston to San Francisco?
At 4h 22m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Houston to San Francisco?
Roughly 276 kg CO2 per passenger one-way. That's about the same as driving 1,380 km.
Is the return flight from San Francisco to Houston also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Houston to San Francisco?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at George Bush Intcntl Houston for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.