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BTM to TNN: distance & flight time
Butte (Bert Mooney Airport) → Tainan (Tainan Airport)
6,645 mi
10,695 km · 5,775 nm
13h 30m
estimated nonstop flight time
+14h
time difference · heading northwest
See live BTM→TNN fares Phone-only fares on this route — call free
Flight time details
6,645 miles nonstop takes roughly 13h 30m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- BTM — Bert Mooney Airport · Butte, United States
- TNN — Tainan Airport · Tainan, Taiwan
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 BTM
- HLN · Helena Regional Airport51 mi away
- BZN · Gallatin Field66 mi away
- SMN · Lemhi County Airport88 mi away
- LVM · Mission Field100 mi away
Near TNN
- PIF · Pingtung North Airport25 mi away
- KHH · Kaohsiung International Airport27 mi away
- CYI · Chiayi Airport37 mi away
- WOT · Wang-an Airport53 mi away
Frequently asked questions
How far is BTM from TNN?
The flight distance from Butte (BTM) to Tainan (TNN) is 6,645 miles (10,695 km, 5,775 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BTM to TNN?
A nonstop flight takes about 13h 30m 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 Butte and Tainan?
Tainan is 14 hours ahead of Butte.
What is the cheapest way to fly from BTM to TNN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BTM–TNN that never appear on search engines, with no booking fees.