airroute("Ostend-Bruges International Airport", "Václav Havel Airport Prague", 2, "Ostend-Bruges International Airport -> Liège Airport -> Heraklion International Nikos Kazantzakis Airport -> Václav Havel Airport Prague").
airroute("Ostend-Bruges International Airport", "Václav Havel Airport Prague", 2, "Ostend-Bruges International Airport -> Liège Airport -> Diagoras Airport -> Václav Havel Airport Prague").
airroute("Ostend-Bruges International Airport", "Václav Havel Airport Prague", 2, "Ostend-Bruges International Airport -> Liège Airport -> Palma De Mallorca Airport -> Václav Havel Airport Prague").