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KSO to BTM: distance & flight time
Kastoria (Kastoria National Airport) → Butte (Bert Mooney Airport)
5,821 mi
9,368 km · 5,058 nm
11h 53m
estimated nonstop flight time
-9h
time difference · heading northwest
See live KSO→BTM fares Phone-only fares on this route — call free
Flight time details
5,821 miles nonstop takes roughly 11h 53m 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
- KSO — Kastoria National Airport · Kastoria, Greece
- 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 KSO
- KZI · Filippos Airport31 mi away
- IOA · Ioannina Airport57 mi away
- OHD · Ohrid St. Paul the Apostle Airport58 mi away
- LRA · Larisa Airport83 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 KSO from BTM?
The flight distance from Kastoria (KSO) to Butte (BTM) is 5,821 miles (9,368 km, 5,058 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KSO to BTM?
A nonstop flight takes about 11h 53m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from KSO to BTM?
Nonstop service on KSO–BTM depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 11h 53m nonstop estimate.
What is the time difference between Kastoria and Butte?
Butte is 9 hours behind Kastoria.
What is the cheapest way to fly from KSO to BTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KSO–BTM that never appear on search engines, with no booking fees.
Why are some KSO to BTM fares phone-only?
Consolidator contracts let us sell certain KSO–BTM tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.