| Biddeford to Opwijk | 3,388.55 mi (5,453.34 km) |
| Biddeford to Ostend | 3,330.97 mi (5,360.68 km) |
| Biddeford to Oud-Heverlee | 3,411.54 mi (5,490.34 km) |
| Biddeford to Oud-Turnhout | 3,411.54 mi (5,490.35 km) |
| Biddeford to Oudenaarde | 3,368.00 mi (5,420.27 km) |
| Biddeford to Oudenburg | 3,335.28 mi (5,367.62 km) |
| Biddeford to Oupeye | 3,454.22 mi (5,559.02 km) |
| Biddeford to Overijse | 3,407.47 mi (5,483.80 km) |
| Biddeford to Overpelt | 3,431.50 mi (5,522.46 km) |
| Biddeford to Paal | 3,426.44 mi (5,514.33 km) |
| Biddeford to Peer | 3,435.20 mi (5,528.42 km) |
| Biddeford to Pepinster | 3,465.06 mi (5,576.48 km) |
| Biddeford to Peruwelz | 3,375.93 mi (5,433.04 km) |
| Biddeford to Perwez | 3,423.08 mi (5,508.91 km) |
| Biddeford to Philippeville | 3,423.68 mi (5,509.87 km) |
