| Marsa to Octeville | 1,248.39 mi (2,009.08 km) |
| Marsa to Oignies | 1,159.44 mi (1,865.94 km) |
| Marsa to Oissel | 1,149.20 mi (1,849.46 km) |
| Marsa to Olivet | 1,048.36 mi (1,687.18 km) |
| Marsa to Ollioules | 680.31 mi (1,094.85 km) |
| Marsa to Olonne-sur-Mer | 1,117.07 mi (1,797.74 km) |
| Marsa to Oloron-Sainte-Marie | 947.87 mi (1,525.44 km) |
| Marsa to Onet Village | 857.88 mi (1,380.63 km) |
| Marsa to Onnaing | 1,140.12 mi (1,834.85 km) |
| Marsa to Orange | 765.72 mi (1,232.31 km) |
| Marsa to Orchies | 1,153.64 mi (1,856.60 km) |
| Marsa to Orleans | 1,050.07 mi (1,689.92 km) |
| Marsa to Orly | 1,079.65 mi (1,737.52 km) |
| Marsa to Ormesson-sur-Marne | 1,077.74 mi (1,734.46 km) |
| Marsa to Orsay | 1,083.14 mi (1,743.15 km) |
