| Piraeus to Nowy Sacz | 820.20 mi (1,319.99 km) |
| Piraeus to Nowy Targ | 816.34 mi (1,313.77 km) |
| Piraeus to Nowy Tomysl | 1,057.12 mi (1,701.27 km) |
| Piraeus to Nysa | 919.53 mi (1,479.83 km) |
| Piraeus to Oborniki | 1,067.82 mi (1,718.49 km) |
| Piraeus to Oborniki Slaskie | 979.56 mi (1,576.45 km) |
| Piraeus to Olawa | 949.70 mi (1,528.40 km) |
| Piraeus to Olecko | 1,113.06 mi (1,791.29 km) |
| Piraeus to Olesnica | 965.58 mi (1,553.94 km) |
| Piraeus to Olesno | 929.45 mi (1,495.81 km) |
| Piraeus to Olkusz | 875.86 mi (1,409.56 km) |
| Piraeus to Olsztyn | 1,104.36 mi (1,777.30 km) |
| Piraeus to Opalenica | 1,052.00 mi (1,693.03 km) |
| Piraeus to Opoczno | 942.52 mi (1,516.85 km) |
| Piraeus to Opole | 922.70 mi (1,484.94 km) |
