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LUK to ONT: distance & flight time
Cincinnati (Cincinnati Municipal Airport Lunken Field) → Ontario (Ontario International Airport)
1,863 mi
2,998 km · 1,619 nm
4h 7m
estimated nonstop flight time
-3h
time difference · heading west
See live LUK→ONT fares Phone-only fares on this route — call free
Flight time details
1,863 miles nonstop takes roughly 4h 7m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- LUK — Cincinnati Municipal Airport Lunken Field · Cincinnati, United States
- 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 LUK
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 LUK from ONT?
The flight distance from Cincinnati (LUK) to Ontario (ONT) is 1,863 miles (2,998 km, 1,619 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LUK to ONT?
A nonstop flight takes about 4h 7m 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 Cincinnati and Ontario?
Ontario is 3 hours behind Cincinnati.
What is the cheapest way to fly from LUK to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LUK–ONT that never appear on search engines, with no booking fees.