| Otwock to Octeville | 1,009.22 mi (1,624.18 km) |
| Otwock to Oignies | 795.51 mi (1,280.25 km) |
| Otwock to Oissel | 899.81 mi (1,448.11 km) |
| Otwock to Olivet | 905.80 mi (1,457.74 km) |
| Otwock to Ollioules | 945.37 mi (1,521.43 km) |
| Otwock to Olonne-sur-Mer | 1,101.10 mi (1,772.04 km) |
| Otwock to Oloron-Sainte-Marie | 1,183.14 mi (1,904.08 km) |
| Otwock to Onet Village | 1,008.03 mi (1,622.27 km) |
| Otwock to Onnaing | 771.37 mi (1,241.41 km) |
| Otwock to Orange | 934.51 mi (1,503.94 km) |
| Otwock to Orchies | 784.78 mi (1,262.98 km) |
| Otwock to Orleans | 904.28 mi (1,455.30 km) |
| Otwock to Orly | 860.00 mi (1,384.03 km) |
| Otwock to Ormesson-sur-Marne | 852.77 mi (1,372.39 km) |
| Otwock to Orsay | 869.85 mi (1,399.89 km) |
