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TRD to HLN: distance & flight time
Trondheim (Trondheim Airport Værnes) → Helena (Helena Regional Airport)
4,222 mi
6,794 km · 3,668 nm
8h 45m
estimated nonstop flight time
-8h
time difference · heading northwest
See live TRD→HLN fares Phone-only fares on this route — call free
Flight time details
4,222 miles nonstop takes roughly 8h 45m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time set-back when reading arrival times on your ticket.
The two airports
- TRD — Trondheim Airport Værnes · Trondheim, Norway
- HLN — Helena Regional Airport · Helena, 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 TRD
- OLA · Ørland Airport44 mi away
- RRS · Røros Airport62 mi away
- OSY · Namsos Høknesøra Airport73 mi away
- RVK · Rørvik Airport, Ryum96 mi away
Near HLN
- BTM · Bert Mooney Airport51 mi away
- GTF · Great Falls International Airport67 mi away
- BZN · Gallatin Field70 mi away
- LVM · Mission Field97 mi away
Frequently asked questions
How far is TRD from HLN?
The flight distance from Trondheim (TRD) to Helena (HLN) is 4,222 miles (6,794 km, 3,668 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TRD to HLN?
A nonstop flight takes about 8h 45m 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 Trondheim and Helena?
Helena is 8 hours behind Trondheim.
What is the cheapest way to fly from TRD to HLN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TRD–HLN that never appear on search engines, with no booking fees.