| Upminster to Imola | 725.80 mi (1,168.06 km) |
| Upminster to Impruneta | 745.59 mi (1,199.92 km) |
| Upminster to Induno Olona | 554.78 mi (892.83 km) |
| Upminster to Inverigo | 573.12 mi (922.34 km) |
| Upminster to Inveruno | 572.72 mi (921.70 km) |
| Upminster to Inzago | 592.00 mi (952.74 km) |
| Upminster to Iseo | 604.51 mi (972.86 km) |
| Upminster to Isernia | 953.02 mi (1,533.74 km) |
| Upminster to Isola Capo Rizzuto | 1,189.65 mi (1,914.55 km) |
| Upminster to Isola del Liri | 927.40 mi (1,492.51 km) |
| Upminster to Isola della Scala | 656.19 mi (1,056.03 km) |
| Upminster to Isola Vicentina | 654.01 mi (1,052.53 km) |
| Upminster to Ispica | 1,247.48 mi (2,007.62 km) |
| Upminster to Istrana | 675.04 mi (1,086.37 km) |
| Upminster to Itri | 947.85 mi (1,525.41 km) |
