| Flekkefjord to Opwijk | 515.97 mi (830.38 km) |
| Flekkefjord to Ostend | 510.62 mi (821.76 km) |
| Flekkefjord to Oud-Heverlee | 521.77 mi (839.71 km) |
| Flekkefjord to Oud-Turnhout | 486.84 mi (783.50 km) |
| Flekkefjord to Oudenaarde | 528.78 mi (851.00 km) |
| Flekkefjord to Oudenburg | 512.53 mi (824.84 km) |
| Flekkefjord to Oupeye | 525.89 mi (846.34 km) |
| Flekkefjord to Overijse | 526.02 mi (846.55 km) |
| Flekkefjord to Overpelt | 491.68 mi (791.28 km) |
| Flekkefjord to Paal | 504.93 mi (812.61 km) |
| Flekkefjord to Peer | 497.31 mi (800.34 km) |
| Flekkefjord to Pepinster | 535.17 mi (861.27 km) |
| Flekkefjord to Peruwelz | 551.47 mi (887.50 km) |
| Flekkefjord to Perwez | 535.24 mi (861.38 km) |
| Flekkefjord to Philippeville | 565.82 mi (910.59 km) |
