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SAY to ONT: distance & flight time
Siena (Siena-Ampugnano Airport) → Ontario (Ontario International Airport)
6,198 mi
9,974 km · 5,386 nm
12h 37m
estimated nonstop flight time
-9h
time difference · heading northwest
See live SAY→ONT fares Phone-only fares on this route — call free
Flight time details
6,198 miles nonstop takes roughly 12h 37m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- SAY — Siena-Ampugnano Airport · Siena, Italy
- ONT — Ontario International Airport · Ontario, 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 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
Near ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
Frequently asked questions
How far is SAY from ONT?
The flight distance from Siena (SAY) to Ontario (ONT) is 6,198 miles (9,974 km, 5,386 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SAY to ONT?
A nonstop flight takes about 12h 37m 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 Siena and Ontario?
Ontario is 9 hours behind Siena.
What is the cheapest way to fly from SAY to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SAY–ONT that never appear on search engines, with no booking fees.