| Fier to Oignies | 1,042.03 mi (1,676.98 km) |
| Fier to Oissel | 1,075.99 mi (1,731.64 km) |
| Fier to Olivet | 999.50 mi (1,608.54 km) |
| Fier to Ollioules | 723.29 mi (1,164.03 km) |
| Fier to Olonne-sur-Mer | 1,135.41 mi (1,827.27 km) |
| Fier to Oloron-Sainte-Marie | 1,047.31 mi (1,685.48 km) |
| Fier to Onet Village | 897.52 mi (1,444.42 km) |
| Fier to Onnaing | 1,016.89 mi (1,636.53 km) |
| Fier to Orange | 786.90 mi (1,266.40 km) |
| Fier to Orchies | 1,033.12 mi (1,662.65 km) |
| Fier to Orleans | 1,000.19 mi (1,609.65 km) |
| Fier to Orly | 1,004.75 mi (1,616.98 km) |
| Fier to Ormesson-sur-Marne | 1,000.18 mi (1,609.63 km) |
| Fier to Orsay | 1,011.68 mi (1,628.14 km) |
| Fier to Orthez | 1,056.59 mi (1,700.41 km) |
