You have currently the chance to earn Star Alliance Gold tier on a single first class roundtrip ticket, available for comparatively cheap €2,499. For this to succeed, you need an SAS Eurobonus account and credit the miles for your flight there. Lufthansa & Swiss currently run a first class sales from Madrid and Lisbon. Within … Continue reading 2 Years Star Alliance GOLD With one Single €2,499 FIRST CLASS Ticket