| Lisbon to Navodari | 1,973.21 mi (3,175.57 km) |
| Lisbon to Negresti-Oas | 1,739.85 mi (2,800.02 km) |
| Lisbon to Nehoiu | 1,859.84 mi (2,993.12 km) |
| Lisbon to Ocna Mures | 1,746.96 mi (2,811.45 km) |
| Lisbon to Odobesti | 1,897.52 mi (3,053.76 km) |
| Lisbon to Odorheiu Secuiesc | 1,814.99 mi (2,920.95 km) |
| Lisbon to Oltenita | 1,875.79 mi (3,018.79 km) |
| Lisbon to Onesti | 1,884.68 mi (3,033.10 km) |
| Lisbon to Oradea | 1,661.85 mi (2,674.49 km) |
| Lisbon to Orastie | 1,711.99 mi (2,755.18 km) |
| Lisbon to Oravita | 1,634.11 mi (2,629.84 km) |
| Lisbon to Orsova | 1,667.34 mi (2,683.32 km) |
| Lisbon to Otelu Rosu | 1,669.23 mi (2,686.36 km) |
| Lisbon to Otopeni | 1,847.50 mi (2,973.27 km) |
| Lisbon to Ovidiu | 1,970.70 mi (3,171.53 km) |
