| Cities | Distance |
|---|
| Porto to Opwijk | 911.63 mi (1,467.12 km) |
| Porto to Ostend | 885.61 mi (1,425.26 km) |
| Porto to Oud-Heverlee | 921.04 mi (1,482.28 km) |
| Porto to Oud-Turnhout | 953.53 mi (1,534.56 km) |
| Porto to Oudenaarde | 887.67 mi (1,428.56 km) |
| Porto to Oudenburg | 885.84 mi (1,425.62 km) |
| Porto to Oupeye | 948.20 mi (1,525.98 km) |
| Porto to Overijse | 914.39 mi (1,471.57 km) |
| Porto to Overpelt | 963.02 mi (1,549.83 km) |
| Porto to Paal | 947.00 mi (1,524.06 km) |
| Porto to Peer | 960.47 mi (1,545.72 km) |
| Porto to Pepinster | 948.15 mi (1,525.89 km) |
| Porto to Peruwelz | 871.23 mi (1,402.10 km) |
| Porto to Perwez | 916.50 mi (1,474.96 km) |
| Porto to Philippeville | 888.73 mi (1,430.28 km) |
