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ONT to UTC: distance & flight time
Ontario (Ontario International Airport) → Soesterberg (Soesterberg Air Base)
5,558 mi
8,945 km · 4,830 nm
11h 22m
estimated nonstop flight time
+9h
time difference · heading northeast
See live ONT→UTC fares Phone-only fares on this route — call free
Flight time details
5,558 miles nonstop takes roughly 11h 22m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time gain when reading arrival times on your ticket.
The two airports
- ONT — Ontario International Airport · Ontario, United States
- UTC — Soesterberg Air Base · Soesterberg, Netherlands
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 ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
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
Frequently asked questions
How far is ONT from UTC?
The flight distance from Ontario (ONT) to Soesterberg (UTC) 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 ONT to UTC?
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 Ontario and Soesterberg?
Soesterberg is 9 hours ahead of Ontario.
What is the cheapest way to fly from ONT to UTC?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–UTC that never appear on search engines, with no booking fees.