The main international airport of Holland also serves as one of the main bases for which airline?
CHC Airways: CHC Airways is an airline based in Hoofddorp, Netherlands. CHC Airways:  Its main bases are Amsterdam Airport Schiphol and Den Helder Airport, with hubs at Brussels Airport and Rotterdam The Hague Airport. Amsterdam Airport Schiphol: Amsterdam Airport Schiphol (Dutch: "Luchthaven Schiphol" , ] ) (IATA: AMS, ICAO: EHAM) is the main international airport of both Holland
CHC Airways