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ONO to KLU: distance & flight time
Ontario (Ontario Municipal Airport) → Klagenfurt (Klagenfurt Airport)
5,506 mi
8,860 km · 4,784 nm
11h 16m
estimated nonstop flight time
+8h
time difference · heading northeast
See live ONO→KLU fares Phone-only fares on this route — call free
Flight time details
5,506 miles nonstop takes roughly 11h 16m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- ONO — Ontario Municipal Airport · Ontario, United States
- KLU — Klagenfurt Airport · Klagenfurt, Austria
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 ONO
- BOI · Boise Air Terminal/Gowen Field50 mi away
- BKE · Baker City Municipal Airport69 mi away
- MYL · McCall Municipal Airport75 mi away
- MUO · Mountain Home Air Force Base88 mi away
Near KLU
- LJU · Ljubljana Jože Pučnik Airport29 mi away
- GRZ · Graz Airport57 mi away
- MBX · Maribor Airport65 mi away
- TRS · Trieste–Friuli Venezia Giulia Airport70 mi away
Frequently asked questions
How far is ONO from KLU?
The flight distance from Ontario (ONO) to Klagenfurt (KLU) is 5,506 miles (8,860 km, 4,784 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONO to KLU?
A nonstop flight takes about 11h 16m 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 ONO to KLU?
Nonstop service on ONO–KLU 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 11h 16m nonstop estimate.
What is the time difference between Ontario and Klagenfurt?
Klagenfurt is 8 hours ahead of Ontario.
What is the cheapest way to fly from ONO to KLU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONO–KLU that never appear on search engines, with no booking fees.
Why are some ONO to KLU fares phone-only?
Consolidator contracts let us sell certain ONO–KLU 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.