ICAO		IATA		Other		Location
KBTN		TTO		BTN		Britton [Muni], South Dakota, US (2 mi / 3 km N)
				ND90		Cogswell (Brampton) [Dahl Airport (Private)], North Dakota, US (12 mi / 19 km N)
				2E6		Groton [Muni], South Dakota, US (24 mi / 39 km SW)
				80SD		Aberdeen [Comstock Field], South Dakota, US (29 mi / 47 km W)
KGWR				GWR		Gwinner [Gwinner-Roger Melroe Field], North Dakota, US (30 mi / 48 km N)
				2D5		Oakes [Muni], North Dakota, US (31 mi / 49 km NW)
				4N4		Lidgerwood [Muni], North Dakota, US (35 mi / 56 km NE)
				SD17		Sisseton [CDP Hospital Heliport], South Dakota, US (35 mi / 57 km E)
				4R6		Milnor [Muni], North Dakota, US (36 mi / 57 km NE)
				1D7		Webster [The Sigurd Anderson Airport], South Dakota, US (36 mi / 59 km S)
				8D3		Sisseton [Muni], South Dakota, US (38 mi / 61 km E)
				SD49		Ferney [Hite Airport], South Dakota, US (38 mi / 61 km SW)
				NA21		Wyndmere [Thompson Airport (Private)], North Dakota, US (39 mi / 63 km NE)
				4E7		Ellendale [Muni], North Dakota, US (40 mi / 64 km NW)
KABR		ABR		ABR		Aberdeen [Aberdeen Regional], South Dakota, US (40 mi / 65 km SW)
				SD32		Aberdeen [Braun Airport], South Dakota, US (42 mi / 67 km SW)
				SD54		Aberdeen [Avera St. Luke's Heliport], South Dakota, US (42 mi / 67 km SW)
				ND49		Wyndmere [Krause Airport (Private)], North Dakota, US (42 mi / 68 km NE)
				SD65		Wilmot [Whipple Ranch Airport], South Dakota, US (44 mi / 71 km SE)
				6ND2		Fullerton [Larson Airport], North Dakota, US (44 mi / 71 km NW)