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NSY to ONT: distance & flight time
Sigonella (Sigonella Navy Air Base) → Ontario (Ontario International Airport)
6,634 mi
10,676 km · 5,764 nm
13h 28m
estimated nonstop flight time
-9h
time difference · heading northwest
See live NSY→ONT fares Phone-only fares on this route — call free
Flight time details
6,634 miles nonstop takes roughly 13h 28m 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
- NSY — Sigonella Navy Air Base · Sigonella, 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 NSY
- CTA · Catania-Fontanarossa Airport9 mi away
- CIY · Comiso Airport33 mi away
- REG · Reggio Calabria Airport61 mi away
- GZM · Xewkija Heliport102 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 NSY from ONT?
The flight distance from Sigonella (NSY) to Ontario (ONT) is 6,634 miles (10,676 km, 5,764 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from NSY to ONT?
A nonstop flight takes about 13h 28m 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 Sigonella and Ontario?
Ontario is 9 hours behind Sigonella.
What is the cheapest way to fly from NSY to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on NSY–ONT that never appear on search engines, with no booking fees.