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BOS to SFO: distance & flight time
Boston (General Edward Lawrence Logan International Airport) → San Francisco (San Francisco International Airport)
2,698 mi
4,341 km · 2,344 nm
5h 45m
estimated nonstop flight time
-3h
time difference · heading west
See live BOS→SFO fares Phone-only fares on this route — call free
Flight time details
2,698 miles nonstop takes roughly 5h 45m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- BOS — General Edward Lawrence Logan International Airport · Boston, United States
- SFO — San Francisco International Airport · San Francisco, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near BOS
- OWD · Norwood Memorial Airport15 mi away
- BED · Laurence G Hanscom Field16 mi away
- BVY · Beverly Municipal Airport16 mi away
- LWM · Lawrence Municipal Airport25 mi away
Near SFO
- SQL · San Carlos Airport10 mi away
- HAF · Half Moon Bay Airport10 mi away
- OAK · Metropolitan Oakland International Airport11 mi away
- NGZ · Alameda Naval Air Station12 mi away
Frequently asked questions
How far is BOS from SFO?
The flight distance from Boston (BOS) to San Francisco (SFO) is 2,698 miles (4,341 km, 2,344 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BOS to SFO?
A nonstop flight takes about 5h 45m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Boston and San Francisco?
San Francisco is 3 hours behind Boston.
What is the cheapest way to fly from BOS to SFO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BOS–SFO that never appear on search engines, with no booking fees.