| Penafiel to Imola | 1,034.45 mi (1,664.79 km) |
| Penafiel to Impruneta | 1,008.12 mi (1,622.40 km) |
| Penafiel to Induno Olona | 913.32 mi (1,469.85 km) |
| Penafiel to Inverigo | 929.31 mi (1,495.58 km) |
| Penafiel to Inveruno | 908.64 mi (1,462.31 km) |
| Penafiel to Inzago | 938.80 mi (1,510.85 km) |
| Penafiel to Iseo | 967.57 mi (1,557.16 km) |
| Penafiel to Isernia | 1,164.27 mi (1,873.72 km) |
| Penafiel to Isola Capo Rizzuto | 1,345.80 mi (2,165.86 km) |
| Penafiel to Isola del Liri | 1,129.48 mi (1,817.72 km) |
| Penafiel to Isola della Scala | 1,008.18 mi (1,622.51 km) |
| Penafiel to Isola Vicentina | 1,033.43 mi (1,663.14 km) |
| Penafiel to Ispica | 1,277.74 mi (2,056.32 km) |
| Penafiel to Istrana | 1,064.94 mi (1,713.86 km) |
| Penafiel to Itri | 1,130.45 mi (1,819.29 km) |
