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PHN to SFO: distance & flight time
Port Huron (St Clair County International Airport) → San Francisco (San Francisco International Airport)
2,112 mi
3,399 km · 1,835 nm
4h 36m
estimated nonstop flight time
-3h
time difference · heading west
See live PHN→SFO fares Phone-only fares on this route — call free
Flight time details
2,112 miles nonstop takes roughly 4h 36m 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
- PHN — St Clair County International Airport · Port Huron, 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 PHN
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 PHN from SFO?
The flight distance from Port Huron (PHN) to San Francisco (SFO) is 2,112 miles (3,399 km, 1,835 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHN to SFO?
A nonstop flight takes about 4h 36m 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 Port Huron and San Francisco?
San Francisco is 3 hours behind Port Huron.
What is the cheapest way to fly from PHN to SFO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHN–SFO that never appear on search engines, with no booking fees.