| Cedar Falls to Opwijk | 4,275.44 mi (6,880.65 km) |
| Cedar Falls to Ostend | 4,219.81 mi (6,791.13 km) |
| Cedar Falls to Oud-Heverlee | 4,298.05 mi (6,917.04 km) |
| Cedar Falls to Oud-Turnhout | 4,290.63 mi (6,905.10 km) |
| Cedar Falls to Oudenaarde | 4,258.79 mi (6,853.85 km) |
| Cedar Falls to Oudenburg | 4,224.34 mi (6,798.42 km) |
| Cedar Falls to Oupeye | 4,338.09 mi (6,981.48 km) |
| Cedar Falls to Overijse | 4,295.17 mi (6,912.42 km) |
| Cedar Falls to Overpelt | 4,310.00 mi (6,936.27 km) |
| Cedar Falls to Paal | 4,308.22 mi (6,933.41 km) |
| Cedar Falls to Peer | 4,314.60 mi (6,943.68 km) |
| Cedar Falls to Pepinster | 4,349.93 mi (7,000.53 km) |
| Cedar Falls to Peruwelz | 4,270.94 mi (6,873.42 km) |
| Cedar Falls to Perwez | 4,311.56 mi (6,938.78 km) |
| Cedar Falls to Philippeville | 4,318.50 mi (6,949.95 km) |
