Estimated travel durations
The straight-line distance from San Francisco to Seattle is 1,093 kilometers (679 miles). This is the crow-flies distance calculated using the Haversine formula.
A direct flight from San Francisco to Seattle takes approximately 3h. This is an estimate based on an average cruising speed of 800 km/h and does not include boarding, taxiing or layover time.
Driving from San Francisco to Seattle would take approximately 12h at an average speed of 85 km/h. The actual driving time may vary depending on road conditions, traffic and border crossings.
The distance from San Francisco to Seattle is 679 miles (1,093 km) as the crow flies.