| Ptolemaida to Novi di Modena | 624.68 mi (1,005.33 km) |
| Ptolemaida to Novi Ligure | 717.05 mi (1,153.99 km) |
| Ptolemaida to Nuoro | 649.28 mi (1,044.91 km) |
| Ptolemaida to Occhiobello | 595.67 mi (958.63 km) |
| Ptolemaida to Oderzo | 588.35 mi (946.86 km) |
| Ptolemaida to Oggiono | 719.19 mi (1,157.42 km) |
| Ptolemaida to Olbia | 638.11 mi (1,026.93 km) |
| Ptolemaida to Oleggio | 745.31 mi (1,199.46 km) |
| Ptolemaida to Olgiate Comasco | 735.85 mi (1,184.24 km) |
| Ptolemaida to Olgiate Olona | 735.19 mi (1,183.17 km) |
| Ptolemaida to Omegna | 763.07 mi (1,228.05 km) |
| Ptolemaida to Opera | 713.42 mi (1,148.14 km) |
| Ptolemaida to Oppeano | 625.00 mi (1,005.84 km) |
| Ptolemaida to Orbassano | 780.43 mi (1,255.98 km) |
| Ptolemaida to Orbetello | 557.66 mi (897.47 km) |
