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ONT to SZR: distance & flight time
Ontario (Ontario International Airport) → Stara Zagora (Stara Zagora Airport)
6,667 mi
10,729 km · 5,793 nm
13h 32m
estimated nonstop flight time
+10h
time difference · heading northeast
See live ONT→SZR fares Phone-only fares on this route — call free
Flight time details
6,667 miles nonstop takes roughly 13h 32m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- SZR — Stara Zagora Airport · Stara Zagora, Bulgaria
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 SZR
- JAM · Bezmer Air Base36 mi away
- PDV · Plovdiv International Airport46 mi away
- GOZ · Gorna Oryahovitsa Airport54 mi away
- BOJ · Burgas Airport96 mi away
Frequently asked questions
How far is ONT from SZR?
The flight distance from Ontario (ONT) to Stara Zagora (SZR) is 6,667 miles (10,729 km, 5,793 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to SZR?
A nonstop flight takes about 13h 32m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from ONT to SZR?
Nonstop service on ONT–SZR depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 13h 32m nonstop estimate.
What is the time difference between Ontario and Stara Zagora?
Stara Zagora is 10 hours ahead of Ontario.
What is the cheapest way to fly from ONT to SZR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–SZR that never appear on search engines, with no booking fees.
Why are some ONT to SZR fares phone-only?
Consolidator contracts let us sell certain ONT–SZR tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.