Here You can find a list of airlines which operated in Treviso airport.
Tirana - WizzAir
Brussels-Charleroi - Ryanair
Sofia - Ryanair
Billund - Ryanair
Tallinn - Ryanair
Bordeaux - Ryanair
Paris Beauvais - Ryanair
Thessaloniki - Ryanair
Bristol - Ryanair
Manchester - Ryanair
Eindhoven - Ryanair
Alghero Sardinia - Ryanair
Brindisi Salento - Ryanair
Comiso - Ryanair
Lamezia Terme - Ryanair
Trapani - Ryanair
Riga - Ryanair
Vilnius - Ryanair
Malta Luqa - Ryanair
Wroclaw - Ryanair
Krakow - Ryanair
Poznan - Ryanair
Warsaw Modlin - Ryanair
Porto - Ryanair
Bukarest Otopeni - WizzAir, Ryanair
Sibiu International - Ryanair
Iasi - WizzAir
Edinburgh - Ryanair
Alicante - Ryanair
Las Palmas Gran Canaria - Ryanair
Malaga Costa del Sol - Ryanair
Palma de Mallorca - Ryanair
Seville - Ryanair
Tenerife South - Ryanair
Valencia - Ryanair
Prague - Ryanair
Budapest - Ryanair
Frankfurt Hahn - Ryanair