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OSY to BTM: distance & flight time
Namsos (Namsos Høknesøra Airport) → Butte (Bert Mooney Airport)
4,233 mi
6,812 km · 3,678 nm
8h 46m
estimated nonstop flight time
-8h
time difference · heading northwest
See live OSY→BTM fares Phone-only fares on this route — call free
Flight time details
4,233 miles nonstop takes roughly 8h 46m 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
- OSY — Namsos Høknesøra Airport · Namsos, Norway
- BTM — Bert Mooney Airport · Butte, 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 OSY
- RVK · Rørvik Airport, Ryum28 mi away
- BNN · Brønnøysund Airport71 mi away
- TRD · Trondheim Airport Værnes73 mi away
- OLA · Ørland Airport80 mi away
Near BTM
- HLN · Helena Regional Airport51 mi away
- BZN · Gallatin Field66 mi away
- SMN · Lemhi County Airport88 mi away
- LVM · Mission Field100 mi away
Frequently asked questions
How far is OSY from BTM?
The flight distance from Namsos (OSY) to Butte (BTM) is 4,233 miles (6,812 km, 3,678 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSY to BTM?
A nonstop flight takes about 8h 46m 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 Namsos and Butte?
Butte is 8 hours behind Namsos.
What is the cheapest way to fly from OSY to BTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSY–BTM that never appear on search engines, with no booking fees.