| Asenovgrad to Nottingham | 1,418.58 mi (2,282.98 km) |
| Asenovgrad to Nuneaton | 1,420.38 mi (2,285.88 km) |
| Asenovgrad to Oadby | 1,406.81 mi (2,264.04 km) |
| Asenovgrad to Oakengates | 1,463.21 mi (2,354.81 km) |
| Asenovgrad to Oakham | 1,395.20 mi (2,245.35 km) |
| Asenovgrad to Oldbury | 1,441.63 mi (2,320.08 km) |
| Asenovgrad to Oldham | 1,470.84 mi (2,367.08 km) |
| Asenovgrad to Ollerton | 1,419.99 mi (2,285.25 km) |
| Asenovgrad to Olton | 1,431.75 mi (2,304.17 km) |
| Asenovgrad to Omagh | 1,692.60 mi (2,723.98 km) |
| Asenovgrad to Ormesby | 1,463.92 mi (2,355.95 km) |
| Asenovgrad to Ormskirk | 1,500.84 mi (2,415.36 km) |
| Asenovgrad to Orpington | 1,330.74 mi (2,141.62 km) |
| Asenovgrad to Ossett | 1,454.04 mi (2,340.05 km) |
| Asenovgrad to Oswaldtwistle | 1,486.44 mi (2,392.19 km) |
