The nearest airport is FCO - Rome Fiumicino, located 69.1 km south of Viterbo.
Other airports nearby include CIA - Rome Ciampino (79.9 km south east), PEG - Perugia (82.7 km north east), GRS - Grosseto (92.6 km north west), SAY - Siena Ampugnano (116.1 km north west),