Great-circle route SFO → IAH. Faint dots are other airports, for geographic context. Download this map — free to reuse with a link back to this page.
The flight time from San Francisco to Houston is approximately 3h 45m nonstop. The distance is 1,632 miles (2,626 km). There are about 9 nonstop flights from San Francisco to Houston per day.
That is a great-circle estimate, not a scheduled block time. An airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
| Route | Est. time | Distance | Frequency | Airlines |
|---|---|---|---|---|
| SFO → IAH San Francisco International Airport to George Bush Intercontinental Houston Airport |
3h 45m | 1,632 mi | 60/wk | United Airlines |
Frequencies come from our most recent schedule sample. Where a pairing shows “—” we track it as an operating nonstop but hold no schedule sample for it — we would rather show nothing than guess.
United Airlines is the only airline flying nonstop from San Francisco to Houston.
Recent scheduled departures on this route have used the Boeing 777, Boeing 737-900, Boeing 737, Boeing 737-800.
Aircraft assignments change by season and by time of day.
On a long east–west route like this one the two directions do not take the same time. Aircraft flying eastbound ride the mid-latitude jet stream and typically arrive earlier than the westbound leg, which flies into it. The difference is commonly 30 to 90 minutes on transatlantic and transpacific flights, and it varies by season. The estimate above does not model wind — treat it as a midpoint and check the airline's own timetable for the block time on your date.
The distance from San Francisco to Houston is 1,632 miles, or 2,626 kilometres.
| Great-circle distance | 1,632 mi |
| Kilometres | 2,626 km |
| Nautical miles | 1,418 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. United Airlines flies it nonstop, with about 60 departures a week. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 3h 45m in the air on the SFO–IAH nonstop. That is a great-circle estimate from the 1,632-mile distance, not a scheduled block time — an airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
1,632 miles (2,626 km) great-circle between San Francisco International Airport and George Bush Intercontinental Houston Airport.
United Airlines.
Recent scheduled departures have used the Boeing 777, Boeing 737-900, Boeing 737, Boeing 737-800. Assignments change by season and by time of day.
