| Bucharest to Oberriet | 818.38 mi (1,317.06 km) |
| Bucharest to Obersiggenthal | 879.02 mi (1,414.64 km) |
| Bucharest to Oberwil | 913.41 mi (1,469.99 km) |
| Bucharest to Oberwingert | 857.23 mi (1,379.58 km) |
| Bucharest to Oftringen | 895.07 mi (1,440.48 km) |
| Bucharest to Olten | 896.10 mi (1,442.13 km) |
| Bucharest to Onex | 976.91 mi (1,572.18 km) |
| Bucharest to Opfikon | 865.82 mi (1,393.40 km) |
| Bucharest to Ostermundigen | 912.82 mi (1,469.04 km) |
| Bucharest to Payerne | 938.42 mi (1,510.24 km) |
| Bucharest to Pfaffikon | 855.18 mi (1,376.29 km) |
| Bucharest to Plan-les-Ouates | 976.11 mi (1,570.90 km) |
| Bucharest to Pratteln | 906.70 mi (1,459.19 km) |
| Bucharest to Prilly | 953.39 mi (1,534.33 km) |
| Bucharest to Pully | 950.19 mi (1,529.18 km) |
