Oshkosh 2025 Notice. November 11, 2025 11:42 am eastern standard time. Before wheels up en route to osh, it's essential to become familiar with the eaa airventure oshkosh 2025 notice (commonly known and published before as oshkosh.
Beginning thursday, july 18, 2025, osh is closed to all arriving aircraft from 8:00 pm until 7:00 am cdt daily, except thursday july 25, no fisk arrivals before 8:00am. Pilots intending to land at wittman regional airport (osh) should be prepared for the possibility of diverting to an alternate airport, such as fond du lac (fld), appleton (atw), or green bay.
