| Big Lake to Octeville | 4,029.31 mi (6,484.54 km) |
| Big Lake to Oignies | 4,163.22 mi (6,700.06 km) |
| Big Lake to Oissel | 4,140.98 mi (6,664.26 km) |
| Big Lake to Olivet | 4,231.47 mi (6,809.89 km) |
| Big Lake to Ollioules | 4,585.29 mi (7,379.30 km) |
| Big Lake to Olonne-sur-Mer | 4,147.20 mi (6,674.28 km) |
| Big Lake to Oloron-Sainte-Marie | 4,331.33 mi (6,970.60 km) |
| Big Lake to Onet Village | 4,406.36 mi (7,091.36 km) |
| Big Lake to Onnaing | 4,187.92 mi (6,739.81 km) |
| Big Lake to Orange | 4,501.05 mi (7,243.74 km) |
| Big Lake to Orchies | 4,171.85 mi (6,713.94 km) |
| Big Lake to Orleans | 4,230.17 mi (6,807.80 km) |
| Big Lake to Orly | 4,212.93 mi (6,780.06 km) |
| Big Lake to Ormesson-sur-Marne | 4,216.49 mi (6,785.78 km) |
| Big Lake to Orsay | 4,207.35 mi (6,771.07 km) |
