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ONT to ZAG: distance & flight time
Ontario (Ontario International Airport) → Zagreb (Zagreb Airport)
6,211 mi
9,996 km · 5,397 nm
12h 39m
estimated nonstop flight time
+9h
time difference · heading northeast
See live ONT→ZAG fares Phone-only fares on this route — call free
Flight time details
6,211 miles nonstop takes roughly 12h 39m 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
- ZAG — Zagreb Airport · Zagreb, Croatia
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 ZAG
- MBX · Maribor Airport54 mi away
- RJK · Rijeka Airport81 mi away
- BNX · Banja Luka International Airport81 mi away
- SOB · Sármellék International Airport83 mi away
Frequently asked questions
How far is ONT from ZAG?
The flight distance from Ontario (ONT) to Zagreb (ZAG) is 6,211 miles (9,996 km, 5,397 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to ZAG?
A nonstop flight takes about 12h 39m 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 Zagreb?
Zagreb is 9 hours ahead of Ontario.
What is the cheapest way to fly from ONT to ZAG?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–ZAG that never appear on search engines, with no booking fees.