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FLG to ISN: distance & flight time
Flagstaff (Flagstaff Pulliam Airport) → Williston (Sloulin Field International Airport)
990 mi
1,594 km · 861 nm
2h 37m
estimated nonstop flight time
+2h
time difference · heading north
See live FLG→ISN fares Phone-only fares on this route — call free
Flight time details
990 miles nonstop takes roughly 2h 37m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- FLG — Flagstaff Pulliam Airport · Flagstaff, United States
- ISN — Sloulin Field International Airport · Williston, 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 FLG
- SDX · Sedona Airport21 mi away
- PRC · Ernest A. Love Field54 mi away
- INW · Winslow Lindbergh Regional Airport54 mi away
- GCN · Grand Canyon National Park Airport62 mi away
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
Frequently asked questions
How far is FLG from ISN?
The flight distance from Flagstaff (FLG) to Williston (ISN) is 990 miles (1,594 km, 861 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FLG to ISN?
A nonstop flight takes about 2h 37m 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 Flagstaff and Williston?
Williston is 2 hours ahead of Flagstaff.
What is the cheapest way to fly from FLG to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FLG–ISN that never appear on search engines, with no booking fees.