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LAI to ONT: distance & flight time
Lannion (Lannion-Côte de Granit Airport) → Ontario (Ontario International Airport)
5,430 mi
8,739 km · 4,719 nm
11h 7m
estimated nonstop flight time
-9h
time difference · heading northwest
See live LAI→ONT fares Phone-only fares on this route — call free
Flight time details
5,430 miles nonstop takes roughly 11h 7m 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
- LAI — Lannion-Côte de Granit Airport · Lannion, 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 LAI
- MXN · Morlaix-Ploujean Airport19 mi away
- SBK · Saint-Brieuc-Armor Airport32 mi away
- LDV · Landivisiau Air Base35 mi away
- BES · Brest Bretagne Airport48 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 LAI from ONT?
The flight distance from Lannion (LAI) to Ontario (ONT) is 5,430 miles (8,739 km, 4,719 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LAI to ONT?
A nonstop flight takes about 11h 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 Lannion and Ontario?
Ontario is 9 hours behind Lannion.
What is the cheapest way to fly from LAI to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LAI–ONT that never appear on search engines, with no booking fees.