| Alta to Octeville | 1,030.71 mi (1,658.76 km) |
| Alta to Oignies | 852.36 mi (1,371.74 km) |
| Alta to Oissel | 966.05 mi (1,554.71 km) |
| Alta to Olivet | 1,026.65 mi (1,652.23 km) |
| Alta to Ollioules | 1,230.07 mi (1,979.61 km) |
| Alta to Olonne-sur-Mer | 1,200.61 mi (1,932.20 km) |
| Alta to Oloron-Sainte-Marie | 1,365.16 mi (2,197.02 km) |
| Alta to Onet Village | 1,218.55 mi (1,961.07 km) |
| Alta to Onnaing | 840.30 mi (1,352.34 km) |
| Alta to Orange | 1,185.85 mi (1,908.44 km) |
| Alta to Orchies | 845.18 mi (1,360.19 km) |
| Alta to Orleans | 1,024.22 mi (1,648.32 km) |
| Alta to Orly | 963.76 mi (1,551.02 km) |
| Alta to Ormesson-sur-Marne | 957.57 mi (1,541.07 km) |
| Alta to Orsay | 971.75 mi (1,563.89 km) |
