| Pittsburg to Opwijk | 5,476.78 mi (8,814.02 km) |
| Pittsburg to Ostend | 5,427.37 mi (8,734.50 km) |
| Pittsburg to Oud-Heverlee | 5,497.42 mi (8,847.24 km) |
| Pittsburg to Oud-Turnhout | 5,480.65 mi (8,820.25 km) |
| Pittsburg to Oudenaarde | 5,466.37 mi (8,797.27 km) |
| Pittsburg to Oudenburg | 5,431.88 mi (8,741.76 km) |
| Pittsburg to Oupeye | 5,531.32 mi (8,901.79 km) |
| Pittsburg to Overijse | 5,496.31 mi (8,845.45 km) |
| Pittsburg to Overpelt | 5,497.94 mi (8,848.07 km) |
| Pittsburg to Paal | 5,500.63 mi (8,852.41 km) |
| Pittsburg to Peer | 5,503.42 mi (8,856.90 km) |
| Pittsburg to Pepinster | 5,543.70 mi (8,921.73 km) |
| Pittsburg to Peruwelz | 5,483.33 mi (8,824.57 km) |
| Pittsburg to Perwez | 5,512.66 mi (8,871.77 km) |
| Pittsburg to Philippeville | 5,527.61 mi (8,895.83 km) |
