| San Marcos to Opwijk | 5,621.65 mi (9,047.17 km) |
| San Marcos to Ostend | 5,569.42 mi (8,963.12 km) |
| San Marcos to Oud-Heverlee | 5,643.22 mi (9,081.89 km) |
| San Marcos to Oud-Turnhout | 5,629.84 mi (9,060.35 km) |
| San Marcos to Oudenaarde | 5,608.75 mi (9,026.42 km) |
| San Marcos to Oudenburg | 5,573.98 mi (8,970.45 km) |
| San Marcos to Oupeye | 5,679.76 mi (9,140.68 km) |
| San Marcos to Overijse | 5,641.43 mi (9,079.01 km) |
| San Marcos to Overpelt | 5,648.06 mi (9,089.68 km) |
| San Marcos to Paal | 5,649.10 mi (9,091.35 km) |
| San Marcos to Peer | 5,653.27 mi (9,098.06 km) |
| San Marcos to Pepinster | 5,692.05 mi (9,160.46 km) |
| San Marcos to Peruwelz | 5,624.01 mi (9,050.97 km) |
| San Marcos to Perwez | 5,657.94 mi (9,105.58 km) |
| San Marcos to Philippeville | 5,669.95 mi (9,124.90 km) |
