| Smyrna to Opwijk | 4,394.07 mi (7,071.57 km) |
| Smyrna to Ostend | 4,336.49 mi (6,978.90 km) |
| Smyrna to Oud-Heverlee | 4,417.05 mi (7,108.56 km) |
| Smyrna to Oud-Turnhout | 4,417.02 mi (7,108.50 km) |
| Smyrna to Oudenaarde | 4,373.49 mi (7,038.46 km) |
| Smyrna to Oudenburg | 4,340.80 mi (6,985.84 km) |
| Smyrna to Oupeye | 4,459.73 mi (7,177.25 km) |
| Smyrna to Overijse | 4,412.98 mi (7,102.01 km) |
| Smyrna to Overpelt | 4,436.97 mi (7,140.61 km) |
| Smyrna to Paal | 4,431.95 mi (7,132.53 km) |
| Smyrna to Peer | 4,440.69 mi (7,146.60 km) |
| Smyrna to Pepinster | 4,470.58 mi (7,194.71 km) |
| Smyrna to Peruwelz | 4,381.36 mi (7,051.12 km) |
| Smyrna to Perwez | 4,428.58 mi (7,127.11 km) |
| Smyrna to Philippeville | 4,429.09 mi (7,127.93 km) |
