| Cassa de la Selva to Nottingham | 786.93 mi (1,266.45 km) |
| Cassa de la Selva to Nuneaton | 762.10 mi (1,226.49 km) |
| Cassa de la Selva to Oadby | 762.50 mi (1,227.12 km) |
| Cassa de la Selva to Oakengates | 786.66 mi (1,266.00 km) |
| Cassa de la Selva to Oakham | 763.61 mi (1,228.91 km) |
| Cassa de la Selva to Oldbury | 768.11 mi (1,236.15 km) |
| Cassa de la Selva to Oldham | 837.52 mi (1,347.86 km) |
| Cassa de la Selva to Ollerton | 802.01 mi (1,290.71 km) |
| Cassa de la Selva to Olton | 760.85 mi (1,224.47 km) |
| Cassa de la Selva to Omagh | 992.09 mi (1,596.61 km) |
| Cassa de la Selva to Ormesby | 894.04 mi (1,438.81 km) |
| Cassa de la Selva to Ormskirk | 849.39 mi (1,366.96 km) |
| Cassa de la Selva to Orpington | 668.31 mi (1,075.53 km) |
| Cassa de la Selva to Ossett | 840.07 mi (1,351.96 km) |
| Cassa de la Selva to Oswaldtwistle | 854.10 mi (1,374.54 km) |
