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FSI to SFO: distance & flight time
Fort Sill (Henry Post Army Air Field (Fort Sill)) → San Francisco (San Francisco International Airport)
1,350 mi
2,172 km · 1,173 nm
3h 24m
estimated nonstop flight time
-2h
time difference · heading west
See live FSI→SFO fares Phone-only fares on this route — call free
Flight time details
1,350 miles nonstop takes roughly 3h 24m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- FSI — Henry Post Army Air Field (Fort Sill) · Fort Sill, 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 FSI
- LAW · Lawton Fort Sill Regional Airport6 mi away
- DUC · Halliburton Field28 mi away
- HBR · Hobart Regional Airport44 mi away
- SPS · Sheppard Air Force Base-Wichita Falls Municipal Airport46 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 FSI from SFO?
The flight distance from Fort Sill (FSI) to San Francisco (SFO) is 1,350 miles (2,172 km, 1,173 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FSI to SFO?
A nonstop flight takes about 3h 24m 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 Fort Sill and San Francisco?
San Francisco is 2 hours behind Fort Sill.
What is the cheapest way to fly from FSI to SFO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FSI–SFO that never appear on search engines, with no booking fees.