Business Class from Houston to Funchal
Business class fares from Houston to Funchal run $2,200–$5,500 round-trip through BestBusinessClass.com, roughly a 40–50% discount off standard published rates on this 4,527-mile routing that typically connects through a European gateway before the short hop to Madeira. There's no nonstop from IAH, so expect a total journey of around 14-16 hours door to door once you factor in the connection, but the tradeoff is a genuinely comfortable long-haul experience if you pick the right carrier.
