Need help booking?
Unpublished phone-only deals available
UTC to ONT: distance & flight time
Soesterberg (Soesterberg Air Base) → Ontario (Ontario International Airport)
5,558 mi
8,945 km · 4,830 nm
11h 22m
estimated nonstop flight time
-9h
time difference · heading northwest
See live UTC→ONT fares Phone-only fares on this route — call free
Flight time details
5,558 miles nonstop takes roughly 11h 22m 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
- UTC — Soesterberg Air Base · Soesterberg, 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 UTC
- AMS · Amsterdam Airport Schiphol25 mi away
- LEY · Lelystad Airport25 mi away
- LID · Valkenburg Naval Air Base36 mi away
- RTM · Rotterdam The Hague 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 UTC from ONT?
The flight distance from Soesterberg (UTC) to Ontario (ONT) is 5,558 miles (8,945 km, 4,830 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UTC to ONT?
A nonstop flight takes about 11h 22m 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 Soesterberg and Ontario?
Ontario is 9 hours behind Soesterberg.
What is the cheapest way to fly from UTC to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UTC–ONT that never appear on search engines, with no booking fees.