| Fort Dodge to Opwijk | 4,337.72 mi (6,980.89 km) |
| Fort Dodge to Ostend | 4,282.38 mi (6,891.82 km) |
| Fort Dodge to Oud-Heverlee | 4,360.26 mi (7,017.16 km) |
| Fort Dodge to Oud-Turnhout | 4,352.22 mi (7,004.21 km) |
| Fort Dodge to Oudenaarde | 4,321.44 mi (6,954.68 km) |
| Fort Dodge to Oudenburg | 4,286.91 mi (6,899.12 km) |
| Fort Dodge to Oupeye | 4,399.99 mi (7,081.10 km) |
| Fort Dodge to Overijse | 4,357.49 mi (7,012.71 km) |
| Fort Dodge to Overpelt | 4,371.49 mi (7,035.24 km) |
| Fort Dodge to Paal | 4,370.00 mi (7,032.84 km) |
| Fort Dodge to Peer | 4,376.16 mi (7,042.75 km) |
| Fort Dodge to Pepinster | 4,411.89 mi (7,100.26 km) |
| Fort Dodge to Peruwelz | 4,333.94 mi (6,974.80 km) |
| Fort Dodge to Perwez | 4,373.91 mi (7,039.13 km) |
| Fort Dodge to Philippeville | 4,381.38 mi (7,051.16 km) |
