| Serik to Octeville | 1,846.26 mi (2,971.27 km) |
| Serik to Oignies | 1,671.81 mi (2,690.53 km) |
| Serik to Oissel | 1,723.19 mi (2,773.21 km) |
| Serik to Olivet | 1,657.29 mi (2,667.16 km) |
| Serik to Ollioules | 1,397.28 mi (2,248.70 km) |
| Serik to Olonne-sur-Mer | 1,804.70 mi (2,904.39 km) |
| Serik to Oloron-Sainte-Marie | 1,720.74 mi (2,769.27 km) |
| Serik to Onet Village | 1,571.20 mi (2,528.60 km) |
| Serik to Onnaing | 1,645.18 mi (2,647.66 km) |
| Serik to Orange | 1,460.47 mi (2,350.40 km) |
| Serik to Orchies | 1,661.85 mi (2,674.49 km) |
| Serik to Orleans | 1,657.67 mi (2,667.77 km) |
| Serik to Orly | 1,654.12 mi (2,662.06 km) |
| Serik to Ormesson-sur-Marne | 1,648.80 mi (2,653.49 km) |
| Serik to Orsay | 1,661.98 mi (2,674.69 km) |
