| Porvoo to Ifield | 1,180.58 mi (1,899.96 km) |
| Porvoo to Ilford | 1,151.02 mi (1,852.39 km) |
| Porvoo to Ilfracombe | 1,303.36 mi (2,097.55 km) |
| Porvoo to Ilkeston | 1,133.95 mi (1,824.92 km) |
| Porvoo to Ilkley | 1,112.16 mi (1,789.85 km) |
| Porvoo to Immingham | 1,071.26 mi (1,724.03 km) |
| Porvoo to Ince-in-Makerfield | 1,153.43 mi (1,856.26 km) |
| Porvoo to Inverness | 1,074.67 mi (1,729.52 km) |
| Porvoo to Inverurie | 1,017.20 mi (1,637.03 km) |
| Porvoo to Ipswich | 1,093.82 mi (1,760.34 km) |
| Porvoo to Irlam | 1,151.35 mi (1,852.91 km) |
| Porvoo to Irthlingborough | 1,139.03 mi (1,833.09 km) |
| Porvoo to Irvine | 1,146.43 mi (1,845.00 km) |
| Porvoo to Islington | 1,157.67 mi (1,863.10 km) |
| Porvoo to Iver | 1,171.70 mi (1,885.66 km) |
