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CGN to ONT: distance & flight time
Cologne (Cologne Bonn Airport) → Ontario (Ontario International Airport)
5,677 mi
9,136 km · 4,933 nm
11h 36m
estimated nonstop flight time
-9h
time difference · heading northwest
See live CGN→ONT fares Phone-only fares on this route — call free
Flight time details
5,677 miles nonstop takes roughly 11h 36m 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
- CGN — Cologne Bonn Airport · Cologne, Germany
- 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 CGN
- BNJ · Bonn-Hangelar Airport7 mi away
- DUS · Düsseldorf Airport34 mi away
- MGL · Mönchengladbach Airport37 mi away
- ESS · Essen Mulheim Airport38 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 CGN from ONT?
The flight distance from Cologne (CGN) to Ontario (ONT) is 5,677 miles (9,136 km, 4,933 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CGN to ONT?
A nonstop flight takes about 11h 36m 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 Cologne and Ontario?
Ontario is 9 hours behind Cologne.
What is the cheapest way to fly from CGN to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CGN–ONT that never appear on search engines, with no booking fees.