ICAO		IATA		Other		Location
(KNTK)		(NTK)				Tustin [Tustin MCAS], California, US (30 mi / 48 km SE)
				CA30		Costa Mesa [Manclark Airway Heliport], California, US (30 mi / 48 km SE)
				74L		Malibu [Malibu Administrative Center Heliport], California, US (30 mi / 48 km W)
				5CL5		Irvine [Kcin Emergency Heliport], California, US (30 mi / 48 km SE)
KSNA		SNA		SNA		Santa Ana [John Wayne/Orange County Airport], California, US (30 mi / 48 km SE)
				10CL		Costa Mesa [Centerport Heliport], California, US (30 mi / 48 km SE)
				CA85		Irvine [Opus Center Irvine Heliport], California, US (30 mi / 48 km SE)
				CA50		Malibu [Hughes/Malibu Heliport], California, US (30 mi / 49 km W)
				57CA		Orange [Loma Ridge Communication Center Heliport], California, US (31 mi / 49 km SE)
				0CL5		Irvine [The Atrium Heliport], California, US (31 mi / 49 km SE)
KCNO		CNO		CNO		Chino, California, US (31 mi / 50 km E)
				99CA		Upland [San Antonio Regional Hospital Heliport], California, US (31 mi / 50 km E)
				3CA2		Irvine [Jamboree Center Helistop], California, US (31 mi / 50 km SE)
				CL38		Huntington Beach [Beta Platform Eureka Heliport], California, US (31 mi / 50 km S)
				02CA		Huntington Beach [Beta Platform Ellen Heliport], California, US (31 mi / 50 km S)
				14CA		Newport Beach [Hoag Memorial Hospital Presbyterian Heliport], California, US (31 mi / 50 km SE)
				CL62		Calabasas [Station 125 Heliport], California, US (31 mi / 51 km W)
				26CN		Acton [Vincent Substation Heliport], California, US (32 mi / 51 km N)
				05CA		Calabasas [Lost Hills Sheriff's Station Heliport], California, US (32 mi / 52 km W)
KONT		ONT		ONT		Ontario [Intl], California, US (33 mi / 52 km E)