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ISN to OSH: distance & flight time
Williston (Sloulin Field International Airport) → Oshkosh (Wittman Regional Airport)
777 mi
1,251 km · 675 nm
2h 9m
estimated nonstop flight time
Same time
time difference · heading east
See live ISN→OSH fares Phone-only fares on this route — call free
Flight time details
777 miles nonstop takes roughly 2h 9m gate to gate, flying east. 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
- OSH — Wittman Regional Airport · Oshkosh, 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 OSH
- FLD · Fond du Lac County Airport15 mi away
- ATW · Appleton International Airport19 mi away
- SBM · Sheboygan County Memorial Airport38 mi away
- GRB · Austin Straubel International Airport41 mi away
Frequently asked questions
How far is ISN from OSH?
The flight distance from Williston (ISN) to Oshkosh (OSH) is 777 miles (1,251 km, 675 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISN to OSH?
A nonstop flight takes about 2h 9m 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 ISN to OSH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISN–OSH that never appear on search engines, with no booking fees.