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RTM to ONT: distance & flight time
Rotterdam (Rotterdam The Hague Airport) → Ontario (Ontario International Airport)
5,541 mi
8,918 km · 4,815 nm
11h 20m
estimated nonstop flight time
-9h
time difference · heading northwest
See live RTM→ONT fares Phone-only fares on this route — call free
Flight time details
5,541 miles nonstop takes roughly 11h 20m 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
- RTM — Rotterdam The Hague Airport · Rotterdam, Netherlands
- 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 RTM
- AMS · Amsterdam Airport Schiphol28 mi away
- LID · Valkenburg Naval Air Base14 mi away
- GLZ · Gilze Rijen Air Base34 mi away
- WOE · Woensdrecht Air Base35 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 RTM from ONT?
The flight distance from Rotterdam (RTM) to Ontario (ONT) is 5,541 miles (8,918 km, 4,815 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RTM to ONT?
A nonstop flight takes about 11h 20m 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 Rotterdam and Ontario?
Ontario is 9 hours behind Rotterdam.
What is the cheapest way to fly from RTM to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RTM–ONT that never appear on search engines, with no booking fees.