Rhinelander–Oneida County Airport RHI / KRHI

Sole FBO at RHI; provides general-aviation ramp and line service (curb-side and fuel-truck service) for based and transient aircraft.

SkyWest Airlines operates both Delta Connection's year-round EAS service to Minneapolis-St. Paul (MSP) and United Express's summer-seasonal service to Chicago O'Hare (ORD) at RHI; the airport publishes one shared local contact number for both brands and no third-party ground handling company is listed for this station, suggesting SkyWest self-handles, but this is not independently confirmed by a primary source.

Full-service FBO and successor operator to Rhinelander Flying Service, Inc. following a 2025 ownership transition (Trig Solberg / Lakeland Aviation of Minocqua); sells 100LL avgas and Jet-A, with self-service fueling available 24 hours for both fuel types plus curb-side and fuel-truck delivery. · Self-service fuel 24 hours; FBO desk hours vary

FBO offers heated and unheated hangar storage (over 30,000 sq ft company-wide across its Rhinelander and Minocqua locations), supporting winter aircraft protection; a discrete de-icing/anti-icing fluid service specific to RHI is not explicitly stated in primary sources.

If SkyWest self-handles ramp operations as inferred above, its own personnel would also perform aircraft de-icing/anti-icing for Delta Connection and United Express flights in winter; no primary source confirms this arrangement or identifies a separate glycol-truck contractor at RHI.

Company states it provides fueling, maintenance, hangar space and charter services at both its Rhinelander and Minocqua locations; specific on-site RHI maintenance scope (inspections, avionics, parts) is not separately itemized in primary sources.

TSA operates and staffs the passenger security screening checkpoint at RHI, confirmed on the airport's own official TSA Information page; TSA PreCheck is available at this checkpoint.