Here You can find a list of airlines which operated in Treviso airport.
Tirana - Ryanair, AeroWorld
Brussels-Charleroi - Ryanair
Sofia - Ryanair
Billund - Ryanair
Tallinn - Ryanair
Marseille Provence - Ryanair
Toulouse Blagnac - Ryanair
Thessaloniki - Ryanair
Bournemouth International - Ryanair
East Midlands - Ryanair
London Luton - Ryanair
Eindhoven - Ryanair
Cork - Ryanair
Rimini Miramare - Ryanair
Trapani - Ryanair
Verona - Ryanair
Riga - Ryanair
Vilnius - Ryanair
Malta Luqa - Ryanair
Skopje - WizzAir
Wroclaw - Ryanair
Gdansk - Ryanair
Katowice - Ryanair
Krakow - Ryanair
Poznan - Ryanair
Warsaw Modlin - Ryanair
Faro - Ryanair
Porto - Ryanair
Bukarest Otopeni - Ryanair, AeroWorld
Alicante - Ryanair
Ibiza - Ryanair
Las Palmas Gran Canaria - Ryanair
Madrid Barajas - Ryanair
Malaga Costa del Sol - Ryanair
Palma de Mallorca - Ryanair
Seville - Ryanair
Tenerife South - Ryanair
Valencia - Ryanair
Zaragoza - Ryanair
Prague - Ryanair
Budapest - Ryanair
Paphos International - Ryanair
Frankfurt Hahn - Ryanair