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KSJ to ONT: distance & flight time
Kasos (Kasos Airport) → Ontario (Ontario International Airport)
7,117 mi
11,454 km · 6,185 nm
14h 25m
estimated nonstop flight time
-10h
time difference · heading northwest
See live KSJ→ONT fares Phone-only fares on this route — call free
Flight time details
7,117 miles nonstop takes roughly 14h 25m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time set-back when reading arrival times on your ticket.
The two airports
- KSJ — Kasos Airport · Kasos, Greece
- ONT — Ontario International Airport · Ontario, United States
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 KSJ
- AOK · Karpathos Airport13 mi away
- JSH · Sitia Airport48 mi away
- JTY · Astypalaia Airport85 mi away
- KGS · Kos Airport95 mi away
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
Frequently asked questions
How far is KSJ from ONT?
The flight distance from Kasos (KSJ) to Ontario (ONT) is 7,117 miles (11,454 km, 6,185 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KSJ to ONT?
A nonstop flight takes about 14h 25m 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 Kasos and Ontario?
Ontario is 10 hours behind Kasos.
What is the cheapest way to fly from KSJ to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KSJ–ONT that never appear on search engines, with no booking fees.