| Kostinbrod to Nottingham | 1,318.75 mi (2,122.33 km) |
| Kostinbrod to Nuneaton | 1,320.26 mi (2,124.76 km) |
| Kostinbrod to Oadby | 1,306.78 mi (2,103.06 km) |
| Kostinbrod to Oakengates | 1,363.07 mi (2,193.66 km) |
| Kostinbrod to Oakham | 1,295.26 mi (2,084.52 km) |
| Kostinbrod to Oldbury | 1,341.45 mi (2,158.86 km) |
| Kostinbrod to Oldham | 1,371.25 mi (2,206.81 km) |
| Kostinbrod to Ollerton | 1,320.35 mi (2,124.89 km) |
| Kostinbrod to Olton | 1,331.55 mi (2,142.93 km) |
| Kostinbrod to Omagh | 1,592.98 mi (2,563.65 km) |
| Kostinbrod to Ormesby | 1,365.33 mi (2,197.29 km) |
| Kostinbrod to Ormskirk | 1,401.14 mi (2,254.92 km) |
| Kostinbrod to Orpington | 1,230.28 mi (1,979.94 km) |
| Kostinbrod to Ossett | 1,354.64 mi (2,180.08 km) |
| Kostinbrod to Oswaldtwistle | 1,386.94 mi (2,232.07 km) |
