Need help booking?
Unpublished phone-only deals available
CER to ONT: distance & flight time
Cherbourg (Cherbourg-Maupertus Airport) → Ontario (Ontario International Airport)
5,459 mi
8,786 km · 4,744 nm
11h 10m
estimated nonstop flight time
-9h
time difference · heading northwest
See live CER→ONT fares Phone-only fares on this route — call free
Flight time details
5,459 miles nonstop takes roughly 11h 10m 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
- CER — Cherbourg-Maupertus Airport · Cherbourg, France
- 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 CER
- ACI · Alderney Airport34 mi away
- JER · Jersey Airport45 mi away
- GCI · Guernsey Airport53 mi away
- GFR · Granville Airport53 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 CER from ONT?
The flight distance from Cherbourg (CER) to Ontario (ONT) is 5,459 miles (8,786 km, 4,744 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CER to ONT?
A nonstop flight takes about 11h 10m 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 Cherbourg and Ontario?
Ontario is 9 hours behind Cherbourg.
What is the cheapest way to fly from CER to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CER–ONT that never appear on search engines, with no booking fees.