| Tondela to Ifield | 824.05 mi (1,326.19 km) |
| Tondela to Ilford | 856.34 mi (1,378.14 km) |
| Tondela to Ilfracombe | 762.62 mi (1,227.32 km) |
| Tondela to Ilkeston | 917.34 mi (1,476.31 km) |
| Tondela to Ilkley | 970.96 mi (1,562.61 km) |
| Tondela to Immingham | 976.28 mi (1,571.17 km) |
| Tondela to Ince-in-Makerfield | 935.47 mi (1,505.50 km) |
| Tondela to Inverness | 1,184.41 mi (1,906.12 km) |
| Tondela to Inverurie | 1,185.83 mi (1,908.41 km) |
| Tondela to Ipswich | 909.72 mi (1,464.05 km) |
| Tondela to Irlam | 931.53 mi (1,499.15 km) |
| Tondela to Irthlingborough | 888.86 mi (1,430.49 km) |
| Tondela to Irvine | 1,055.11 mi (1,698.03 km) |
| Tondela to Islington | 851.49 mi (1,370.34 km) |
| Tondela to Iver | 841.67 mi (1,354.54 km) |
