Cheap flights from San Francisco to Boston

Direct flight: 4,341 km, ~5h 6m from San Francisco (SFO) to Boston (BOS).

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Live fares · SFO → BOS

Frequently asked questions

  • How long is the flight from San Francisco to Boston?

    Direct flights from SFO to BOS cover approximately 4,341 km (2,697 miles), with an estimated flight time of 5h 6m. Operating airlines: B6, DL, UA.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.

Full route page: SFO → BOS Cheapest month to fly to Boston All flights from San Francisco All flights to Boston Flights to USA Visa-free with USA passport B6 routes DL routes UA routes