| Sedro-Woolley to Octeville | 4,793.08 mi (7,713.72 km) |
| Sedro-Woolley to Oignies | 4,867.98 mi (7,834.26 km) |
| Sedro-Woolley to Oissel | 4,882.27 mi (7,857.25 km) |
| Sedro-Woolley to Olivet | 4,986.85 mi (8,025.56 km) |
| Sedro-Woolley to Ollioules | 5,364.34 mi (8,633.07 km) |
| Sedro-Woolley to Olonne-sur-Mer | 4,959.47 mi (7,981.49 km) |
| Sedro-Woolley to Oloron-Sainte-Marie | 5,179.30 mi (8,335.27 km) |
| Sedro-Woolley to Onet Village | 5,204.51 mi (8,375.84 km) |
| Sedro-Woolley to Onnaing | 4,887.81 mi (7,866.17 km) |
| Sedro-Woolley to Orange | 5,278.25 mi (8,494.53 km) |
| Sedro-Woolley to Orchies | 4,873.99 mi (7,843.93 km) |
| Sedro-Woolley to Orleans | 4,984.89 mi (8,022.41 km) |
| Sedro-Woolley to Orly | 4,950.12 mi (7,966.45 km) |
| Sedro-Woolley to Ormesson-sur-Marne | 4,951.56 mi (7,968.76 km) |
| Sedro-Woolley to Orsay | 4,947.33 mi (7,961.96 km) |
