John Wayne Airport is further west than Muskegon County Airport.
Muskegon County Airport (IATA: MKG,ICAO: KMKG,FAA LID: MKG) is a county owned, public use airport in Muskegon County, Michigan, United States. 
John Wayne Airport (IATA: SNA,ICAO: KSNA,FAA LID: SNA) is an international airport in Orange County, California, United States, with its mailing address in the city of Santa Ana, hence the IATA airport code. 
