Here You can find a list of airlines which operated in Frankfurt-Hahn airport.
Tirana - WizzAir
Sarajevo - WizzAir
Tuzla - WizzAir
Varna - WizzAir
Thessaloniki - Ryanair
Kerry - Ryanair
Bari - Ryanair
Lamezia Terme - Ryanair
Naples Capodichino - Ryanair
Pescara Abruzzo - Ryanair
Rome Ciampino - Ryanair
Treviso - Ryanair
Venice Marco Polo - Ryanair
Zagreb - Ryanair
Vilnius - Ryanair
Skopje - WizzAir
Porto - Ryanair
Cluj-Napoca - WizzAir
Sibiu International - WizzAir
Timisoara - WizzAir
Belgrade - WizzAir
Seville - Ryanair
Tenerife South - Ryanair
Kiev Boryspil - Ryanair