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ISN to COS: distance & flight time
Williston (Sloulin Field International Airport) → Colorado Springs (City of Colorado Springs Municipal Airport)
650 mi
1,046 km · 565 nm
1h 53m
estimated nonstop flight time
-1h
time difference · heading south
See live ISN→COS fares Phone-only fares on this route — call free
Flight time details
650 miles nonstop takes roughly 1h 53m 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
- COS — City of Colorado Springs Municipal Airport · Colorado Springs, 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 COS
- FCS · Butts AAF (Fort Carson) Air Field9 mi away
- DEN · Denver International Airport73 mi away
- PUB · Pueblo Memorial Airport37 mi away
- APA · Centennial Airport53 mi away
Frequently asked questions
How far is ISN from COS?
The flight distance from Williston (ISN) to Colorado Springs (COS) is 650 miles (1,046 km, 565 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to COS?
A nonstop flight takes about 1h 53m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from ISN to COS?
Nonstop service on ISN–COS depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 53m nonstop estimate.
What is the time difference between Williston and Colorado Springs?
Colorado Springs is 1 hour behind Williston.
What is the cheapest way to fly from ISN to COS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–COS that never appear on search engines, with no booking fees.
Why are some ISN to COS fares phone-only?
Consolidator contracts let us sell certain ISN–COS tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.