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ISN to AIA: distance & flight time
Williston (Sloulin Field International Airport) → Alliance (Alliance Municipal Airport)
425 mi
684 km · 369 nm
1h 23m
estimated nonstop flight time
-1h
time difference · heading south
See live ISN→AIA fares Phone-only fares on this route — call free
Flight time details
425 miles nonstop takes roughly 1h 23m gate to gate, flying south. 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.
The two airports
- ISN — Sloulin Field International Airport · Williston, United States
- AIA — Alliance Municipal Airport · Alliance, 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 AIA
- BFF · Western Neb. Rgnl/William B. Heilig Airport43 mi away
- CDR · Chadron Municipal Airport56 mi away
- SNY · Sidney Municipal-Lloyd W Carr Field66 mi away
- STK · Sterling Municipal Airport102 mi away
Frequently asked questions
How far is ISN from AIA?
The flight distance from Williston (ISN) to Alliance (AIA) is 425 miles (684 km, 369 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to AIA?
A nonstop flight takes about 1h 23m 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 Alliance?
Alliance is 1 hour behind Williston.
What is the cheapest way to fly from ISN to AIA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–AIA that never appear on search engines, with no booking fees.