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BZN to ISN: distance & flight time

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

391 mi
629 km · 340 nm
1h 30m
estimated nonstop flight time
+1h
time difference · heading northeast
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Flight time details

391 miles nonstop takes roughly 1h 30m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain 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 BZN from ISN?

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

How long is the flight from BZN to ISN?

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 Bozeman and Williston?

Williston is 1 hour ahead of Bozeman.

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

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BZN–ISN that never appear on search engines, with no booking fees.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