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ISN to BPI: distance & flight time
Williston (Sloulin Field International Airport) → Big Piney (Miley Memorial Field)
498 mi
801 km · 432 nm
1h 33m
estimated nonstop flight time
—
time difference · heading southwest
See live ISN→BPI fares Phone-only fares on this route — call free
Flight time details
498 miles nonstop takes roughly 1h 33m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- ISN — Sloulin Field International Airport · Williston, United States
- BPI — Miley Memorial Field · Big Piney, 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 ISN
- SDY · Sidney - Richland Regional Airport41 mi away
- YEN · Estevan Airport78 mi away
- OLF · L M Clayton Airport89 mi away
- GDV · Dawson Community Airport90 mi away
Near BPI
- PWY · Ralph Wenz Field21 mi away
- LND · Hunt Field72 mi away
- JAC · Jackson Hole Airport77 mi away
- FBR · Fort Bridger Airport84 mi away
Frequently asked questions
How far is ISN from BPI?
The flight distance from Williston (ISN) to Big Piney (BPI) is 498 miles (801 km, 432 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to BPI?
A nonstop flight takes about 1h 33m 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 cheapest way to fly from ISN to BPI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–BPI that never appear on search engines, with no booking fees.