Show worlds largest airport nears completion in miami MIAMI FLA the worlds largest commercial aviation landing field a acre tract with runways a mile long is nearing completion on the outskirts of miami known as the miami international air terminal the new air base will be the clearing house for all air traffic between the united states the west indies and the south american republics it represents a potential expenditure of more than present plans call for the runways and landing field facilities to be completed by july 1 when the new airport will be formally placed in service last year during a period of six months 1152 planes entered or cleared miami to and from the west indies cuba and central and south american countries carrying passengers pounds of mail and pounds of express valued at more than |