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OKO to ONT: distance & flight time
Yokota (Yokota Air Base) → Ontario (Ontario International Airport)
5,521 mi
8,885 km · 4,797 nm
11h 17m
estimated nonstop flight time
-16h
time difference · heading northeast
See live OKO→ONT fares Phone-only fares on this route — call free
Flight time details
5,521 miles nonstop takes roughly 11h 17m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time set-back when reading arrival times on your ticket.
The two airports
- OKO — Yokota Air Base · Yokota, Japan
- 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 OKO
- HND · Tokyo Haneda International Airport28 mi away
- NRT · Narita International Airport58 mi away
- NJA · Atsugi Naval Air Facility21 mi away
- IBR · Hyakuri Airport67 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 OKO from ONT?
The flight distance from Yokota (OKO) to Ontario (ONT) is 5,521 miles (8,885 km, 4,797 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OKO to ONT?
A nonstop flight takes about 11h 17m 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 Yokota and Ontario?
Ontario is 16 hours behind Yokota.
What is the cheapest way to fly from OKO to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OKO–ONT that never appear on search engines, with no booking fees.