| San Gwann to Nottingham | 1,400.87 mi (2,254.49 km) |
| San Gwann to Nuneaton | 1,386.51 mi (2,231.37 km) |
| San Gwann to Oadby | 1,379.95 mi (2,220.82 km) |
| San Gwann to Oakengates | 1,422.65 mi (2,289.53 km) |
| San Gwann to Oakham | 1,374.74 mi (2,212.43 km) |
| San Gwann to Oldbury | 1,400.69 mi (2,254.19 km) |
| San Gwann to Oldham | 1,457.81 mi (2,346.12 km) |
| San Gwann to Ollerton | 1,410.81 mi (2,270.48 km) |
| San Gwann to Olton | 1,391.35 mi (2,239.16 km) |
| San Gwann to Omagh | 1,655.25 mi (2,663.86 km) |
| San Gwann to Ormesby | 1,488.84 mi (2,396.06 km) |
| San Gwann to Ormskirk | 1,479.59 mi (2,381.17 km) |
| San Gwann to Orpington | 1,282.82 mi (2,064.50 km) |
| San Gwann to Ossett | 1,451.11 mi (2,335.33 km) |
| San Gwann to Oswaldtwistle | 1,475.59 mi (2,374.74 km) |
