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PIR to ISN: distance & flight time
Pierre (Pierre Regional Airport) → Williston (Sloulin Field International Airport)
307 mi
494 km · 267 nm
1h 17m
estimated nonstop flight time
Same time
time difference · heading northwest
See live PIR→ISN fares Phone-only fares on this route — call free
Flight time details
307 miles nonstop takes roughly 1h 17m 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
- PIR — Pierre Regional Airport · Pierre, 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 PIR
- MBG · Mobridge Municipal Airport81 mi away
- HON · Huron Regional Airport102 mi away
- VTN · Miller Field106 mi away
- ABR · Aberdeen Regional Airport117 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 PIR from ISN?
The flight distance from Pierre (PIR) to Williston (ISN) is 307 miles (494 km, 267 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PIR to ISN?
A nonstop flight takes about 1h 17m 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 PIR to ISN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PIR–ISN that never appear on search engines, with no booking fees.