| Penafiel to Navodari | 1,868.04 mi (3,006.33 km) |
| Penafiel to Negresti-Oas | 1,615.21 mi (2,599.42 km) |
| Penafiel to Nehoiu | 1,749.46 mi (2,815.48 km) |
| Penafiel to Ocna Mures | 1,630.58 mi (2,624.16 km) |
| Penafiel to Odobesti | 1,784.87 mi (2,872.47 km) |
| Penafiel to Odorheiu Secuiesc | 1,699.30 mi (2,734.75 km) |
| Penafiel to Oltenita | 1,772.43 mi (2,852.45 km) |
| Penafiel to Onesti | 1,769.41 mi (2,847.59 km) |
| Penafiel to Oradea | 1,540.94 mi (2,479.91 km) |
| Penafiel to Orastie | 1,598.58 mi (2,572.66 km) |
| Penafiel to Oravita | 1,525.36 mi (2,454.82 km) |
| Penafiel to Orsova | 1,560.63 mi (2,511.59 km) |
| Penafiel to Otelu Rosu | 1,557.63 mi (2,506.77 km) |
| Penafiel to Otopeni | 1,741.64 mi (2,802.89 km) |
| Penafiel to Ovidiu | 1,865.82 mi (3,002.75 km) |
