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CGX to ISN: distance & flight time
Chicago (Chicago Meigs Airport) → Williston (Sloulin Field International Airport)
894 mi
1,439 km · 777 nm
2h 25m
estimated nonstop flight time
Same time
time difference · heading northwest
See live CGX→ISN fares Phone-only fares on this route — call free
Flight time details
894 miles nonstop takes roughly 2h 25m gate to gate, flying northwest. 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
- CGX — Chicago Meigs Airport · Chicago, 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 CGX
- ORD · Chicago O'Hare International Airport17 mi away
- MDW · Chicago Midway International Airport9 mi away
- GYY · Gary Chicago International Airport20 mi away
- PWK · Chicago Executive Airport23 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 CGX from ISN?
The flight distance from Chicago (CGX) to Williston (ISN) is 894 miles (1,439 km, 777 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CGX to ISN?
A nonstop flight takes about 2h 25m 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 CGX to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CGX–ISN that never appear on search engines, with no booking fees.