| Boadilla del Monte to Nottingham | 876.28 mi (1,410.23 km) |
| Boadilla del Monte to Nuneaton | 844.82 mi (1,359.60 km) |
| Boadilla del Monte to Oadby | 852.65 mi (1,372.21 km) |
| Boadilla del Monte to Oakengates | 851.67 mi (1,370.63 km) |
| Boadilla del Monte to Oakham | 860.17 mi (1,384.31 km) |
| Boadilla del Monte to Oldbury | 840.49 mi (1,352.64 km) |
| Boadilla del Monte to Oldham | 911.42 mi (1,466.78 km) |
| Boadilla del Monte to Ollerton | 893.98 mi (1,438.73 km) |
| Boadilla del Monte to Olton | 836.98 mi (1,346.98 km) |
| Boadilla del Monte to Omagh | 992.54 mi (1,597.33 km) |
| Boadilla del Monte to Ormesby | 985.01 mi (1,585.22 km) |
| Boadilla del Monte to Ormskirk | 910.41 mi (1,465.16 km) |
| Boadilla del Monte to Orpington | 781.18 mi (1,257.19 km) |
| Boadilla del Monte to Ossett | 923.30 mi (1,485.91 km) |
| Boadilla del Monte to Oswaldtwistle | 924.02 mi (1,487.06 km) |
