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UKB to ONT: distance & flight time
Kobe (Kobe Airport) → Ontario (Ontario International Airport)
5,754 mi
9,261 km · 5,000 nm
11h 45m
estimated nonstop flight time
-16h
time difference · heading northeast
See live UKB→ONT fares Phone-only fares on this route — call free
Flight time details
5,754 miles nonstop takes roughly 11h 45m 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
- UKB — Kobe Airport · Kobe, 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 UKB
- KIX · Kansai International Airport14 mi away
- ITM · Osaka International Airport16 mi away
- TKS · Tokushima Airport/JMSDF Air Base49 mi away
- TJH · Tajima Airport66 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 UKB from ONT?
The flight distance from Kobe (UKB) to Ontario (ONT) is 5,754 miles (9,261 km, 5,000 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UKB to ONT?
A nonstop flight takes about 11h 45m 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 Kobe and Ontario?
Ontario is 16 hours behind Kobe.
What is the cheapest way to fly from UKB to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UKB–ONT that never appear on search engines, with no booking fees.