| Prague to Oignies | 504.78 mi (812.36 km) |
| Prague to Oissel | 596.94 mi (960.69 km) |
| Prague to Olivet | 587.46 mi (945.43 km) |
| Prague to Ollioules | 628.51 mi (1,011.50 km) |
| Prague to Olonne-sur-Mer | 781.72 mi (1,258.05 km) |
| Prague to Oloron-Sainte-Marie | 854.89 mi (1,375.82 km) |
| Prague to Onet Village | 680.11 mi (1,094.54 km) |
| Prague to Onnaing | 478.33 mi (769.80 km) |
| Prague to Orange | 610.04 mi (981.77 km) |
| Prague to Orchies | 493.75 mi (794.62 km) |
| Prague to Orleans | 586.19 mi (943.39 km) |
| Prague to Orly | 547.97 mi (881.87 km) |
| Prague to Ormesson-sur-Marne | 540.83 mi (870.39 km) |
| Prague to Orsay | 557.82 mi (897.72 km) |
| Prague to Orthez | 848.73 mi (1,365.90 km) |
