| Sedro-Woolley to Opwijk | 4,869.40 mi (7,836.55 km) |
| Sedro-Woolley to Ostend | 4,823.38 mi (7,762.47 km) |
| Sedro-Woolley to Oud-Heverlee | 4,888.89 mi (7,867.90 km) |
| Sedro-Woolley to Oud-Turnhout | 4,868.93 mi (7,835.78 km) |
| Sedro-Woolley to Oudenaarde | 4,861.61 mi (7,824.00 km) |
| Sedro-Woolley to Oudenburg | 4,827.79 mi (7,769.57 km) |
| Sedro-Woolley to Oupeye | 4,919.81 mi (7,917.68 km) |
| Sedro-Woolley to Overijse | 4,888.47 mi (7,867.24 km) |
| Sedro-Woolley to Overpelt | 4,885.11 mi (7,861.83 km) |
| Sedro-Woolley to Paal | 4,889.42 mi (7,868.75 km) |
| Sedro-Woolley to Peer | 4,890.82 mi (7,871.02 km) |
| Sedro-Woolley to Pepinster | 4,932.17 mi (7,937.56 km) |
| Sedro-Woolley to Peruwelz | 4,880.11 mi (7,853.78 km) |
| Sedro-Woolley to Perwez | 4,904.49 mi (7,893.02 km) |
| Sedro-Woolley to Philippeville | 4,922.24 mi (7,921.58 km) |
