| Grand Forks to Opwijk | 4,172.73 mi (6,715.36 km) |
| Grand Forks to Ostend | 4,119.40 mi (6,629.53 km) |
| Grand Forks to Oud-Heverlee | 4,194.66 mi (6,750.66 km) |
| Grand Forks to Oud-Turnhout | 4,183.01 mi (6,731.90 km) |
| Grand Forks to Oudenaarde | 4,158.74 mi (6,692.85 km) |
| Grand Forks to Oudenburg | 4,123.96 mi (6,636.87 km) |
| Grand Forks to Oupeye | 4,232.34 mi (6,811.29 km) |
| Grand Forks to Overijse | 4,192.56 mi (6,747.27 km) |
| Grand Forks to Overpelt | 4,201.64 mi (6,761.89 km) |
| Grand Forks to Paal | 4,201.83 mi (6,762.19 km) |
| Grand Forks to Peer | 4,206.68 mi (6,770.00 km) |
| Grand Forks to Pepinster | 4,244.54 mi (6,830.92 km) |
| Grand Forks to Peruwelz | 4,173.20 mi (6,716.12 km) |
| Grand Forks to Perwez | 4,209.08 mi (6,773.85 km) |
| Grand Forks to Philippeville | 4,219.70 mi (6,790.95 km) |
