| Plonsk to Imola | 695.24 mi (1,118.88 km) |
| Plonsk to Impruneta | 746.78 mi (1,201.83 km) |
| Plonsk to Induno Olona | 699.27 mi (1,125.37 km) |
| Plonsk to Inverigo | 692.54 mi (1,114.53 km) |
| Plonsk to Inveruno | 715.54 mi (1,151.55 km) |
| Plonsk to Inzago | 694.25 mi (1,117.29 km) |
| Plonsk to Iseo | 669.71 mi (1,077.79 km) |
| Plonsk to Isernia | 814.30 mi (1,310.49 km) |
| Plonsk to Isola Capo Rizzuto | 957.73 mi (1,541.32 km) |
| Plonsk to Isola del Liri | 820.81 mi (1,320.97 km) |
| Plonsk to Isola della Scala | 662.02 mi (1,065.43 km) |
| Plonsk to Isola Vicentina | 629.14 mi (1,012.50 km) |
| Plonsk to Ispica | 1,126.92 mi (1,813.60 km) |
| Plonsk to Istrana | 608.01 mi (978.50 km) |
| Plonsk to Itri | 847.20 mi (1,363.44 km) |
