| Biddeford to Nasaud | 4,309.40 mi (6,935.31 km) |
| Biddeford to Navodari | 4,594.29 mi (7,393.79 km) |
| Biddeford to Negresti-Oas | 4,248.67 mi (6,837.58 km) |
| Biddeford to Nehoiu | 4,461.23 mi (7,179.66 km) |
| Biddeford to Ocna Mures | 4,324.02 mi (6,958.84 km) |
| Biddeford to Odobesti | 4,473.33 mi (7,199.13 km) |
| Biddeford to Odorheiu Secuiesc | 4,382.88 mi (7,053.56 km) |
| Biddeford to Oltenita | 4,527.29 mi (7,285.97 km) |
| Biddeford to Onesti | 4,441.44 mi (7,147.80 km) |
| Biddeford to Oradea | 4,221.71 mi (6,794.18 km) |
| Biddeford to Orastie | 4,319.81 mi (6,952.06 km) |
| Biddeford to Oravita | 4,291.85 mi (6,907.07 km) |
| Biddeford to Orsova | 4,332.83 mi (6,973.02 km) |
| Biddeford to Otelu Rosu | 4,299.54 mi (6,919.44 km) |
| Biddeford to Otopeni | 4,485.58 mi (7,218.85 km) |
