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ISN to FRI: distance & flight time
Williston (Sloulin Field International Airport) → Fort Riley (Marshall Army Air Field)
717 mi
1,155 km · 623 nm
2h 2m
estimated nonstop flight time
Same time
time difference · heading southeast
See live ISN→FRI fares Phone-only fares on this route — call free
Flight time details
717 miles nonstop takes roughly 2h 2m gate to gate, flying southeast. 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
- ISN — Sloulin Field International Airport · Williston, United States
- FRI — Marshall Army Air Field · Fort Riley, 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 FRI
- MHK · Manhattan Regional Airport8 mi away
- SLN · Salina Municipal Airport51 mi away
- EMP · Emporia Municipal Airport59 mi away
- FOE · Topeka Regional Airport - Forbes Field60 mi away
Frequently asked questions
How far is ISN from FRI?
The flight distance from Williston (ISN) to Fort Riley (FRI) is 717 miles (1,155 km, 623 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to FRI?
A nonstop flight takes about 2h 2m 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 FRI?
Nonstop service on ISN–FRI 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 2h 2m nonstop estimate.
What is the cheapest way to fly from ISN to FRI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–FRI that never appear on search engines, with no booking fees.
Why are some ISN to FRI fares phone-only?
Consolidator contracts let us sell certain ISN–FRI 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.