| Peoria to Opwijk | 4,256.87 mi (6,850.77 km) |
| Peoria to Ostend | 4,200.49 mi (6,760.04 km) |
| Peoria to Oud-Heverlee | 4,279.67 mi (6,887.47 km) |
| Peoria to Oud-Turnhout | 4,274.18 mi (6,878.63 km) |
| Peoria to Oudenaarde | 4,239.11 mi (6,822.18 km) |
| Peoria to Oudenburg | 4,204.98 mi (6,767.26 km) |
| Peoria to Oupeye | 4,320.58 mi (6,953.30 km) |
| Peoria to Overijse | 4,276.47 mi (6,882.31 km) |
| Peoria to Overpelt | 4,293.79 mi (6,910.18 km) |
| Peoria to Paal | 4,291.14 mi (6,905.92 km) |
| Peoria to Peer | 4,298.17 mi (6,917.24 km) |
| Peoria to Pepinster | 4,332.20 mi (6,972.01 km) |
| Peoria to Peruwelz | 4,250.18 mi (6,840.01 km) |
| Peoria to Perwez | 4,292.71 mi (6,908.45 km) |
| Peoria to Philippeville | 4,297.98 mi (6,916.93 km) |
