| Porsgrunn to Ascoli Piceno | 1,135.93 mi (1,828.10 km) |
| Porsgrunn to Asola | 960.77 mi (1,546.22 km) |
| Porsgrunn to Asolo | 924.57 mi (1,487.95 km) |
| Porsgrunn to Assemini | 1,370.64 mi (2,205.82 km) |
| Porsgrunn to Assisi | 1,115.14 mi (1,794.64 km) |
| Porsgrunn to Asti | 984.22 mi (1,583.95 km) |
| Porsgrunn to Atessa | 1,195.44 mi (1,923.87 km) |
| Porsgrunn to Atri | 1,156.80 mi (1,861.69 km) |
| Porsgrunn to Atripalda | 1,276.86 mi (2,054.91 km) |
| Porsgrunn to Augusta | 1,530.69 mi (2,463.40 km) |
| Porsgrunn to Aulla | 1,029.47 mi (1,656.77 km) |
| Porsgrunn to Aurisina | 939.73 mi (1,512.36 km) |
| Porsgrunn to Avellino | 1,276.59 mi (2,054.47 km) |
| Porsgrunn to Aversa | 1,269.00 mi (2,042.26 km) |
| Porsgrunn to Avezzano | 1,190.57 mi (1,916.04 km) |
