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UCK to ONT: distance & flight time
Lutsk (Lutsk Airport) → Ontario (Ontario International Airport)
6,165 mi
9,922 km · 5,357 nm
12h 33m
estimated nonstop flight time
-9h
time difference · heading northwest
See live UCK→ONT fares Phone-only fares on this route — call free
Flight time details
6,165 miles nonstop takes roughly 12h 33m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- UCK — Lutsk Airport · Lutsk, Ukraine
- 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 UCK
- RWN · Rivne International Airport29 mi away
- LWO · Lviv International Airport90 mi away
- HMJ · Khmelnytskyi Airport111 mi away
- BQT · Brest Airport120 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 UCK from ONT?
The flight distance from Lutsk (UCK) to Ontario (ONT) is 6,165 miles (9,922 km, 5,357 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UCK to ONT?
A nonstop flight takes about 12h 33m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from UCK to ONT?
Nonstop service on UCK–ONT depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 12h 33m nonstop estimate.
What is the time difference between Lutsk and Ontario?
Ontario is 9 hours behind Lutsk.
What is the cheapest way to fly from UCK to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UCK–ONT that never appear on search engines, with no booking fees.
Why are some UCK to ONT fares phone-only?
Consolidator contracts let us sell certain UCK–ONT tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.