Beechcraft King Air 260 vs Beechcraft King Air 360 vs Beechcraft King Air 360er vs Beechcraft Kingair Denali

In category, the King Air 260, 360, and 360ER are pressurized twin‑turboprop business/utility aircraft in the long‑running King Air line, while the King Air Denali is a newer, clean‑sheet, single‑engine turboprop positioned as a higher‑performance “large single” alternative rather than a twin. For range, the King Air 260 is a capable mid‑range twin suited to regional missions, the King Air 360 typically stretches farther thanks to higher gross weight and systems optimized for longer legs, and the King Air 360ER is the endurance variant, offering the longest range of the group for extended overwater, special mission, or long‑distance corporate flights. The Denali is designed for long range for a single‑engine turboprop and can rival or exceed some twin‑turboprop missions depending on payload and reserves, but the 360ER remains the standout for maximum reach. For passenger capacity, the King Air 260 and 360 commonly seat around six to eight in executive layouts, with flexibility for more in utility configurations; the 360’s cabin is often configured more comfortably for premium passengers. The Denali is generally aimed at about five to eight passengers, depending on interior and mission.