Missouri flying is split between two large metro systems, several capable regional airports and a deep bench of non-towered public-use fields. KSTL (St Louis Lambert Intl) is the big St Louis gateway, with four runways, ILS service and an 11,020 ft longest runway. KMCI (Kansas City Intl) anchors the west side with a 10,801 ft runway, tower and ILS. GA pilots have strong alternatives to the largest terminals. KSUS (Spirit of St Louis) has a 7,486 ft runway and 3 FBOs, which makes it a practical St Louis-area business and training base. KMKC (Kansas City Downtown/Wheeler Field) also has 3 FBOs, ILS service and a 6,827 ft runway near the city core. The rest of the state is useful for IFR cross-country work, instrument training and destination flying. KSGF (Springfield-Branson National) gives southwest Missouri an 8,000 ft towered ILS airport. KBBG (Branson) offers a 7,140 ft runway at 1,302 ft elevation. With 124 public-use airports, 112 of them non-towered, Missouri rewards pilots who brief services, runway length and weather before leaving the metro areas.