| Sinaia to Nottingham | 1,306.21 mi (2,102.14 km) |
| Sinaia to Nuneaton | 1,312.97 mi (2,113.02 km) |
| Sinaia to Oadby | 1,297.91 mi (2,088.79 km) |
| Sinaia to Oakengates | 1,355.72 mi (2,181.82 km) |
| Sinaia to Oakham | 1,284.92 mi (2,067.88 km) |
| Sinaia to Oldbury | 1,335.35 mi (2,149.03 km) |
| Sinaia to Oldham | 1,354.44 mi (2,179.77 km) |
| Sinaia to Ollerton | 1,304.90 mi (2,100.03 km) |
| Sinaia to Olton | 1,325.79 mi (2,133.66 km) |
| Sinaia to Omagh | 1,574.51 mi (2,533.93 km) |
| Sinaia to Ormesby | 1,336.27 mi (2,150.52 km) |
| Sinaia to Ormskirk | 1,385.58 mi (2,229.88 km) |
| Sinaia to Orpington | 1,232.85 mi (1,984.09 km) |
| Sinaia to Ossett | 1,335.34 mi (2,149.02 km) |
| Sinaia to Oswaldtwistle | 1,368.65 mi (2,202.63 km) |
