| Bucharest to Nottingham | 1,364.27 mi (2,195.59 km) |
| Bucharest to Nuneaton | 1,370.11 mi (2,204.98 km) |
| Bucharest to Oadby | 1,355.31 mi (2,181.16 km) |
| Bucharest to Oakengates | 1,412.96 mi (2,273.93 km) |
| Bucharest to Oakham | 1,342.55 mi (2,160.63 km) |
| Bucharest to Oldbury | 1,392.32 mi (2,240.72 km) |
| Bucharest to Oldham | 1,413.33 mi (2,274.53 km) |
| Bucharest to Ollerton | 1,363.46 mi (2,194.28 km) |
| Bucharest to Olton | 1,382.68 mi (2,225.21 km) |
| Bucharest to Omagh | 1,634.00 mi (2,629.67 km) |
| Bucharest to Ormesby | 1,397.11 mi (2,248.43 km) |
| Bucharest to Ormskirk | 1,444.31 mi (2,324.39 km) |
| Bucharest to Orpington | 1,287.98 mi (2,072.80 km) |
| Bucharest to Ossett | 1,394.61 mi (2,244.41 km) |
| Bucharest to Oswaldtwistle | 1,427.81 mi (2,297.84 km) |
