| Frederikshavn to Opwijk | 515.22 mi (829.17 km) |
| Frederikshavn to Ostend | 527.06 mi (848.22 km) |
| Frederikshavn to Oud-Heverlee | 514.19 mi (827.50 km) |
| Frederikshavn to Oud-Turnhout | 478.12 mi (769.46 km) |
| Frederikshavn to Oudenaarde | 534.30 mi (859.88 km) |
| Frederikshavn to Oudenburg | 527.68 mi (849.22 km) |
| Frederikshavn to Oupeye | 505.36 mi (813.30 km) |
| Frederikshavn to Overijse | 519.80 mi (836.53 km) |
| Frederikshavn to Overpelt | 476.61 mi (767.03 km) |
| Frederikshavn to Paal | 492.09 mi (791.95 km) |
| Frederikshavn to Peer | 481.30 mi (774.57 km) |
| Frederikshavn to Pepinster | 511.84 mi (823.73 km) |
| Frederikshavn to Peruwelz | 554.92 mi (893.06 km) |
| Frederikshavn to Perwez | 524.64 mi (844.33 km) |
| Frederikshavn to Philippeville | 556.16 mi (895.05 km) |
