| Kotka to Oignies | 1,154.08 mi (1,857.32 km) |
| Kotka to Oissel | 1,268.85 mi (2,042.02 km) |
| Kotka to Olivet | 1,321.22 mi (2,126.30 km) |
| Kotka to Ollioules | 1,484.45 mi (2,389.00 km) |
| Kotka to Olonne-sur-Mer | 1,501.93 mi (2,417.12 km) |
| Kotka to Oloron-Sainte-Marie | 1,652.26 mi (2,659.05 km) |
| Kotka to Onet Village | 1,496.12 mi (2,407.78 km) |
| Kotka to Onnaing | 1,139.73 mi (1,834.22 km) |
| Kotka to Orange | 1,450.74 mi (2,334.73 km) |
| Kotka to Orchies | 1,146.15 mi (1,844.55 km) |
| Kotka to Orleans | 1,318.92 mi (2,122.60 km) |
| Kotka to Orly | 1,260.19 mi (2,028.07 km) |
| Kotka to Ormesson-sur-Marne | 1,253.66 mi (2,017.57 km) |
| Kotka to Orsay | 1,268.71 mi (2,041.78 km) |
| Kotka to Orthez | 1,640.18 mi (2,639.62 km) |
