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AAH to ONT: distance & flight time
Aachen (Aachen-Merzbrück Airport) → Ontario (Ontario International Airport)
5,650 mi
9,093 km · 4,910 nm
11h 33m
estimated nonstop flight time
-9h
time difference · heading northwest
See live AAH→ONT fares Phone-only fares on this route — call free
Flight time details
5,650 miles nonstop takes roughly 11h 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
- AAH — Aachen-Merzbrück Airport · Aachen, 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 AAH
- GKE · Geilenkirchen Air Base11 mi away
- MST · Maastricht Aachen Airport19 mi away
- MGL · Mönchengladbach Airport31 mi away
- LGG · Liège Airport35 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 AAH from ONT?
The flight distance from Aachen (AAH) to Ontario (ONT) is 5,650 miles (9,093 km, 4,910 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from AAH to ONT?
A nonstop flight takes about 11h 33m 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 Aachen and Ontario?
Ontario is 9 hours behind Aachen.
What is the cheapest way to fly from AAH to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on AAH–ONT that never appear on search engines, with no booking fees.