| Frogn to Octeville | 849.05 mi (1,366.41 km) |
| Frogn to Oignies | 704.96 mi (1,134.52 km) |
| Frogn to Oissel | 810.05 mi (1,303.66 km) |
| Frogn to Olivet | 890.64 mi (1,433.35 km) |
| Frogn to Ollioules | 1,162.01 mi (1,870.08 km) |
| Frogn to Olonne-sur-Mer | 1,041.46 mi (1,676.07 km) |
| Frogn to Oloron-Sainte-Marie | 1,235.23 mi (1,987.92 km) |
| Frogn to Onet Village | 1,111.54 mi (1,788.85 km) |
| Frogn to Onnaing | 700.45 mi (1,127.27 km) |
| Frogn to Orange | 1,102.58 mi (1,774.43 km) |
| Frogn to Orchies | 700.48 mi (1,127.31 km) |
| Frogn to Orleans | 888.00 mi (1,429.10 km) |
| Frogn to Orly | 825.77 mi (1,328.95 km) |
| Frogn to Ormesson-sur-Marne | 820.75 mi (1,320.87 km) |
| Frogn to Orsay | 832.03 mi (1,339.03 km) |
