| Otopeni to Oberriet | 814.08 mi (1,310.13 km) |
| Otopeni to Obersiggenthal | 874.68 mi (1,407.66 km) |
| Otopeni to Oberwil | 909.09 mi (1,463.04 km) |
| Otopeni to Oberwingert | 852.85 mi (1,372.53 km) |
| Otopeni to Oftringen | 890.84 mi (1,433.67 km) |
| Otopeni to Olten | 891.85 mi (1,435.30 km) |
| Otopeni to Onex | 973.33 mi (1,566.42 km) |
| Otopeni to Opfikon | 861.50 mi (1,386.45 km) |
| Otopeni to Ostermundigen | 908.80 mi (1,462.58 km) |
| Otopeni to Payerne | 934.49 mi (1,503.92 km) |
| Otopeni to Pfaffikon | 850.89 mi (1,369.38 km) |
| Otopeni to Plan-les-Ouates | 972.54 mi (1,565.16 km) |
| Otopeni to Pratteln | 902.37 mi (1,452.22 km) |
| Otopeni to Prilly | 949.62 mi (1,528.27 km) |
| Otopeni to Pully | 946.43 mi (1,523.13 km) |
