| Clayton to Imola | 891.19 mi (1,434.23 km) |
| Clayton to Impruneta | 914.28 mi (1,471.39 km) |
| Clayton to Induno Olona | 723.47 mi (1,164.31 km) |
| Clayton to Inverigo | 741.05 mi (1,192.60 km) |
| Clayton to Inveruno | 742.48 mi (1,194.90 km) |
| Clayton to Inzago | 759.85 mi (1,222.86 km) |
| Clayton to Iseo | 770.07 mi (1,239.32 km) |
| Clayton to Isernia | 1,119.74 mi (1,802.04 km) |
| Clayton to Isola Capo Rizzuto | 1,355.78 mi (2,181.92 km) |
| Clayton to Isola del Liri | 1,095.46 mi (1,762.98 km) |
| Clayton to Isola della Scala | 820.27 mi (1,320.09 km) |
| Clayton to Isola Vicentina | 815.01 mi (1,311.62 km) |
| Clayton to Ispica | 1,420.39 mi (2,285.89 km) |
| Clayton to Istrana | 833.53 mi (1,341.43 km) |
| Clayton to Itri | 1,116.83 mi (1,797.36 km) |
