Dubai World Central, the emirate’s second airport, is to open for passenger flights from October 26 with two carriers operating, following repeated delays, Dubai Airports said Wednesday.Saudi Arabia’s Nasair will operate over 50 flights a week between Dubai and destinations in the kingdom, while Hungary-headquartered budget Wizz Air is to fly non-stop routes from Central and Eastern Europe, the airport operator said.Dubai World Central, launched at the height of Dubai’s rapid economic growth, is touted to become the world’s largest airport when completed, with an annual capacity of 160 million passenger.But it began operations for cargo only in 2010, with the date for passenger operations pushed back