| Boadilla del Monte to Ifield | 761.00 mi (1,224.70 km) |
| Boadilla del Monte to Ilford | 793.25 mi (1,276.61 km) |
| Boadilla del Monte to Ilfracombe | 746.38 mi (1,201.18 km) |
| Boadilla del Monte to Ilkeston | 876.42 mi (1,410.47 km) |
| Boadilla del Monte to Ilkley | 938.87 mi (1,510.97 km) |
| Boadilla del Monte to Immingham | 928.32 mi (1,493.98 km) |
| Boadilla del Monte to Ince-in-Makerfield | 909.38 mi (1,463.50 km) |
| Boadilla del Monte to Inverness | 1,179.59 mi (1,898.36 km) |
| Boadilla del Monte to Inverurie | 1,167.73 mi (1,879.28 km) |
| Boadilla del Monte to Ipswich | 839.72 mi (1,351.40 km) |
| Boadilla del Monte to Irlam | 903.40 mi (1,453.88 km) |
| Boadilla del Monte to Irthlingborough | 837.72 mi (1,348.17 km) |
| Boadilla del Monte to Irvine | 1,051.74 mi (1,692.61 km) |
| Boadilla del Monte to Islington | 790.25 mi (1,271.79 km) |
| Boadilla del Monte to Iver | 784.54 mi (1,262.59 km) |
