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LGG to ONT: distance & flight time
Liege (Liège Airport) → Ontario (Ontario International Airport)
5,637 mi
9,071 km · 4,898 nm
11h 31m
estimated nonstop flight time
-8h
time difference · heading northwest
See live LGG→ONT fares Phone-only fares on this route — call free
Flight time details
5,637 miles nonstop takes roughly 11h 31m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time set-back when reading arrival times on your ticket.
The two airports
- LGG — Liège Airport · Liege, Belgium
- 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 LGG
- MST · Maastricht Aachen Airport24 mi away
- GKE · Geilenkirchen Air Base34 mi away
- AAH · Aachen-Merzbrück Airport35 mi away
- CRL · Brussels South Charleroi Airport45 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 LGG from ONT?
The flight distance from Liege (LGG) to Ontario (ONT) is 5,637 miles (9,071 km, 4,898 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LGG to ONT?
A nonstop flight takes about 11h 31m 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 LGG to ONT?
Nonstop service on LGG–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 11h 31m nonstop estimate.
What is the time difference between Liege and Ontario?
Ontario is 8 hours behind Liege.
What is the cheapest way to fly from LGG to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LGG–ONT that never appear on search engines, with no booking fees.
Why are some LGG to ONT fares phone-only?
Consolidator contracts let us sell certain LGG–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.