How is the flight distance measured?

Flight distances are measured as the great-circle (straight-line) distance between airports. Actual flight paths may be slightly longer due to air traffic routing and weather avoidance.

How long does the flight from San Francisco to Boston take?

Flight time depends on the exact route and aircraft, but at roughly 4,341 km the typical non-stop flight takes 1–10 hours. Check the flight duration page for the exact average.

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Flight Distance: San Francisco to Boston

4,341

Kilometres (km)

2,697

Miles (mi)

2,344

Nautical miles

About this flight distance

The great circle distance from San Francisco to Boston is approximately 4,341 km. The typical flight time is 5h 36m.

This is the shortest possible distance between the two cities as the crow flies. Real flight paths are often slightly longer due to air traffic control routing, weather, and airspace restrictions.

Related route pages

→Direct flights San Francisco to Boston →Flight duration San Francisco to Boston →Cheapest day to fly San Francisco to Boston →Flights San Francisco to Boston

Nearby airports

Near San Francisco

San Carlos Airport (SQL)16 km
Metropolitan Oakland International Airport (OAK)18 km
Norman Y. Mineta San Jose International Airport (SJC)49 km

Near Boston

Laurence G Hanscom Field (BED)26 km
Manchester Boston Regional Airport (MHT)72 km
Worcester Regional Airport (ORH)72 km

Frequently Asked Questions

The great-circle distance from San Francisco to Boston is approximately 4,341 km (2,697 miles).