Arkansas flying is a mix of low-elevation river country, Ozark terrain, humid weather, plus a surprisingly useful IFR airport network. The state has 101 public-use airports, but only 7 are towered. That means many trips begin or end in non-towered procedures, even when the destination has an ILS and a long runway. KFSM (Fort Smith Rgnl) is the top-ranked field in the provided list, with a tower, ILS, two FBOs, plus a 9,318-foot runway. KLIT (Bill and Hillary Clinton Ntl/Adams Fld) gives Little Rock pilots the most runway options in the state, with three runways, tower service, ILS capability, plus two FBOs. KBYH (Arkansas Intl) is the runway outlier. It is non-towered but has an ILS, one FBO. the state’s longest runway at 11,602 feet. Northwest Arkansas deserves extra performance planning. KXNA (Northwest Arkansas Ntl), KROG (Rogers Exec - Carter Fld), KFYV (Drake Fld), plus KASG (Springdale Muni) are all towered and ILS-equipped. They also sit above 1,200 feet elevation. On hot, humid days, that is enough to make takeoff calculations more than a formality.