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ISN to SDY: distance & flight time
Williston (Sloulin Field International Airport) → Sidney (Sidney - Richland Regional Airport)
41 mi
67 km · 36 nm
35m
estimated nonstop flight time
-1h
time difference · heading southwest
See live ISN→SDY fares Phone-only fares on this route — call free
Flight time details
41 miles nonstop takes roughly 35m gate to gate, flying southwest. 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
- SDY — Sidney - Richland Regional Airport · Sidney, 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 SDY
- ISN · Sloulin Field International Airport41 mi away
- GDV · Dawson Community Airport49 mi away
- OLF · L M Clayton Airport69 mi away
- DIK · Dickinson Theodore Roosevelt Regional Airport91 mi away
Frequently asked questions
How far is ISN from SDY?
The flight distance from Williston (ISN) to Sidney (SDY) is 41 miles (67 km, 36 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to SDY?
A nonstop flight takes about 35m 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 Sidney?
Sidney is 1 hour behind Williston.
What is the cheapest way to fly from ISN to SDY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–SDY that never appear on search engines, with no booking fees.