| Sedro-Woolley to Olivares | 5,324.79 mi (8,569.41 km) |
| Sedro-Woolley to Olivenza | 5,223.83 mi (8,406.94 km) |
| Sedro-Woolley to Olot | 5,326.51 mi (8,572.18 km) |
| Sedro-Woolley to Onate | 5,134.35 mi (8,262.94 km) |
| Sedro-Woolley to Onda | 5,371.54 mi (8,644.66 km) |
| Sedro-Woolley to Onteniente | 5,425.43 mi (8,731.39 km) |
| Sedro-Woolley to Orihuela | 5,456.44 mi (8,781.29 km) |
| Sedro-Woolley to Osuna | 5,369.87 mi (8,641.97 km) |
| Sedro-Woolley to Ourense | 5,002.06 mi (8,050.04 km) |
| Sedro-Woolley to Oviedo | 5,011.18 mi (8,064.72 km) |
| Sedro-Woolley to Paiporta | 5,397.04 mi (8,685.69 km) |
| Sedro-Woolley to Pajara | 5,524.98 mi (8,891.59 km) |
| Sedro-Woolley to Palafolls | 5,363.43 mi (8,631.61 km) |
| Sedro-Woolley to Palafrugell | 5,360.94 mi (8,627.60 km) |
| Sedro-Woolley to Palamos | 5,364.09 mi (8,632.66 km) |
