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ONT to TRD: distance & flight time
Ontario (Ontario International Airport) → Trondheim (Trondheim Airport Værnes)
5,135 mi
8,263 km · 4,462 nm
10h 32m
estimated nonstop flight time
+9h
time difference · heading north
See live ONT→TRD fares Phone-only fares on this route — call free
Flight time details
5,135 miles nonstop takes roughly 10h 32m gate to gate, flying north. 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
- TRD — Trondheim Airport Værnes · Trondheim, Norway
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 TRD
- OLA · Ørland Airport44 mi away
- RRS · Røros Airport62 mi away
- OSY · Namsos Høknesøra Airport73 mi away
- RVK · Rørvik Airport, Ryum96 mi away
Frequently asked questions
How far is ONT from TRD?
The flight distance from Ontario (ONT) to Trondheim (TRD) is 5,135 miles (8,263 km, 4,462 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ONT to TRD?
A nonstop flight takes about 10h 32m 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 Trondheim?
Trondheim is 9 hours ahead of Ontario.
What is the cheapest way to fly from ONT to TRD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ONT–TRD that never appear on search engines, with no booking fees.