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ASH to SFO: distance & flight time
Nashua (Boire Field) → San Francisco (San Francisco International Airport)
2,667 mi
4,292 km · 2,317 nm
5h 42m
estimated nonstop flight time
-3h
time difference · heading west
See live ASH→SFO fares Phone-only fares on this route — call free
Flight time details
2,667 miles nonstop takes roughly 5h 42m 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
- ASH — Boire Field · Nashua, 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 ASH
- BOS · General Edward Lawrence Logan International Airport39 mi away
- MHT · Manchester-Boston Regional Airport11 mi away
- LWM · Lawrence Municipal Airport20 mi away
- BED · Laurence G Hanscom Field24 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 ASH from SFO?
The flight distance from Nashua (ASH) to San Francisco (SFO) is 2,667 miles (4,292 km, 2,317 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ASH to SFO?
A nonstop flight takes about 5h 42m 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 Nashua and San Francisco?
San Francisco is 3 hours behind Nashua.
What is the cheapest way to fly from ASH to SFO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ASH–SFO that never appear on search engines, with no booking fees.