| Serris to Ifield | 205.43 mi (330.61 km) |
| Serris to Ilford | 221.52 mi (356.51 km) |
| Serris to Ilfracombe | 346.72 mi (557.99 km) |
| Serris to Ilkeston | 335.50 mi (539.94 km) |
| Serris to Ilkley | 402.44 mi (647.66 km) |
| Serris to Immingham | 353.39 mi (568.73 km) |
| Serris to Ince-in-Makerfield | 398.62 mi (641.51 km) |
| Serris to Inverness | 661.88 mi (1,065.19 km) |
| Serris to Inverurie | 619.84 mi (997.53 km) |
| Serris to Ipswich | 232.62 mi (374.37 km) |
| Serris to Irlam | 388.96 mi (625.97 km) |
| Serris to Irthlingborough | 282.14 mi (454.07 km) |
| Serris to Irvine | 562.95 mi (905.98 km) |
| Serris to Islington | 225.36 mi (362.69 km) |
| Serris to Iver | 234.72 mi (377.75 km) |
