City Map Compare/ Distance / Boston to San Francisco

Distance from Boston to San Francisco

4,334 km (2,693 miles) — straight-line distance as the crow flies

4,334 km

Kilometers

2,693 miles

Miles

~5h 36m

Est. Flight

3h

Time Difference

Boston

USA
Area: 232 km²
Population: 0.68M
Timezone: UTC-5
Elevation: 43m

San Francisco

USA
Area: 121 km²
Population: 0.87M
Timezone: UTC-8
Elevation: 16m

The distance between Boston and San Francisco is roughly equivalent to 11 hours of driving, though the straight-line distance as the crow flies is significantly shorter than any road route.

Boston is known for Harvard & MIT and Freedom Trail, while San Francisco is famous for Golden Gate Bridge and Alcatraz Island.

In terms of city area, Boston is 1.9x larger than San Francisco. You can compare their sizes visually on our side-by-side map comparison.

Compare Boston and San Francisco side by side

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Frequently Asked Questions

How far is Boston from San Francisco?

The straight-line (as the crow flies) distance from Boston to San Francisco is 4,334 km (2,693 miles).

How long is the flight from Boston to San Francisco?

A direct flight would take approximately 5h 36m, based on an average commercial jet speed of 850 km/h.

Is Boston bigger than San Francisco?

Boston is larger at 232 km², compared to 121 km².

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