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ONT to OLB: distance & flight time
Ontario (Ontario International Airport) → Olbia (Olbia Costa Smeralda Airport)
6,263 mi
10,079 km · 5,442 nm
12h 45m
estimated nonstop flight time
+9h
time difference · heading northeast
See live ONT→OLB fares Phone-only fares on this route — call free
Flight time details
6,263 miles nonstop takes roughly 12h 45m 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
- ONT — Ontario International Airport · Ontario, United States
- OLB — Olbia Costa Smeralda Airport · Olbia, 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 ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
Near OLB
- FSC · Figari Sud-Corse Airport47 mi away
- PRP · Propriano Airport62 mi away
- AHO · Alghero-Fertilia Airport67 mi away
- TTB · Tortolì Airport68 mi away
Frequently asked questions
How far is ONT from OLB?
The flight distance from Ontario (ONT) to Olbia (OLB) is 6,263 miles (10,079 km, 5,442 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to OLB?
A nonstop flight takes about 12h 45m 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 Ontario and Olbia?
Olbia is 9 hours ahead of Ontario.
What is the cheapest way to fly from ONT to OLB?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–OLB that never appear on search engines, with no booking fees.