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KES to ONT: distance & flight time
Kelsey (Kelsey Airport) → Ontario (Ontario International Airport)
1,819 mi
2,927 km · 1,581 nm
4h 2m
estimated nonstop flight time
—
time difference · heading southwest
See live KES→ONT fares Phone-only fares on this route — call free
Flight time details
1,819 miles nonstop takes roughly 4h 2m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- KES — Kelsey Airport · Kelsey, Canada
- 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 KES
- ZAC · York Landing Airport17 mi away
- ILF · Ilford Airport35 mi away
- PIW · Pikwitonei Airport40 mi away
- YTH · Thompson Airport55 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 KES from ONT?
The flight distance from Kelsey (KES) to Ontario (ONT) is 1,819 miles (2,927 km, 1,581 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KES to ONT?
A nonstop flight takes about 4h 2m 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 cheapest way to fly from KES to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KES–ONT that never appear on search engines, with no booking fees.