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ONT to BEG: distance & flight time
Ontario (Ontario International Airport) → Belgrade (Belgrade Nikola Tesla Airport)
6,382 mi
10,271 km · 5,546 nm
12h 59m
estimated nonstop flight time
+9h
time difference · heading northeast
See live ONT→BEG fares Phone-only fares on this route — call free
Flight time details
6,382 miles nonstop takes roughly 12h 59m 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
- BEG — Belgrade Nikola Tesla Airport · Belgrade, Serbia
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 BEG
- BJY · Batajnica Air Base8 mi away
- QND · Cenej Airport45 mi away
- TZL · Tuzla International Airport82 mi away
- TSR · Timişoara Traian Vuia Airport85 mi away
Frequently asked questions
How far is ONT from BEG?
The flight distance from Ontario (ONT) to Belgrade (BEG) is 6,382 miles (10,271 km, 5,546 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to BEG?
A nonstop flight takes about 12h 59m 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 Belgrade?
Belgrade is 9 hours ahead of Ontario.
What is the cheapest way to fly from ONT to BEG?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–BEG that never appear on search engines, with no booking fees.