| Frederiksvaerk to Oignies | 531.75 mi (855.78 km) |
| Frederiksvaerk to Oissel | 646.04 mi (1,039.70 km) |
| Frederiksvaerk to Olivet | 705.11 mi (1,134.77 km) |
| Frederiksvaerk to Ollioules | 927.52 mi (1,492.70 km) |
| Frederiksvaerk to Olonne-sur-Mer | 880.11 mi (1,416.41 km) |
| Frederiksvaerk to Oloron-Sainte-Marie | 1,044.52 mi (1,681.00 km) |
| Frederiksvaerk to Onet Village | 901.68 mi (1,451.12 km) |
| Frederiksvaerk to Onnaing | 519.01 mi (835.26 km) |
| Frederiksvaerk to Orange | 876.44 mi (1,410.49 km) |
| Frederiksvaerk to Orchies | 524.29 mi (843.77 km) |
| Frederiksvaerk to Orleans | 702.68 mi (1,130.85 km) |
| Frederiksvaerk to Orly | 642.20 mi (1,033.52 km) |
| Frederiksvaerk to Ormesson-sur-Marne | 636.01 mi (1,023.56 km) |
| Frederiksvaerk to Orsay | 650.22 mi (1,046.43 km) |
| Frederiksvaerk to Orthez | 1,030.57 mi (1,658.55 km) |
