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SFO to SAY: distance & flight time
San Francisco (San Francisco International Airport) → Siena (Siena-Ampugnano Airport)
6,138 mi
9,879 km · 5,334 nm
12h 30m
estimated nonstop flight time
+9h
time difference · heading northeast
See live SFO→SAY fares Phone-only fares on this route — call free
Flight time details
6,138 miles nonstop takes roughly 12h 30m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time gain when reading arrival times on your ticket.
The two airports
- SFO — San Francisco International Airport · San Francisco, United States
- SAY — Siena-Ampugnano Airport · Siena, Italy
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 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
Near SAY
- GRS · Grosseto Air Base36 mi away
- FLR · Peretola Airport38 mi away
- PSA · Pisa International Airport52 mi away
- EBA · Marina Di Campo Airport62 mi away
Frequently asked questions
How far is SFO from SAY?
The flight distance from San Francisco (SFO) to Siena (SAY) is 6,138 miles (9,879 km, 5,334 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SFO to SAY?
A nonstop flight takes about 12h 30m 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 San Francisco and Siena?
Siena is 9 hours ahead of San Francisco.
What is the cheapest way to fly from SFO to SAY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SFO–SAY that never appear on search engines, with no booking fees.