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ISN to BZN: distance & flight time

Williston (Sloulin Field International Airport) → Bozeman (Gallatin Field)

391 mi
629 km · 340 nm
1h 30m
estimated nonstop flight time
-1h
time difference · heading west
See live ISN→BZN fares Phone-only fares on this route — call free

Flight time details

391 miles nonstop takes roughly 1h 30m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.

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The two airports

Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.

Alternate airports can cut this fare

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Frequently asked questions

How far is ISN from BZN?

The flight distance from Williston (ISN) to Bozeman (BZN) is 391 miles (629 km, 340 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from ISN to BZN?

A nonstop flight takes about 1h 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 Williston and Bozeman?

Bozeman is 1 hour behind Williston.

What is the cheapest way to fly from ISN to BZN?

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–BZN that never appear on search engines, with no booking fees.
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