| Serik to Noventa Vicentina | 1,166.88 mi (1,877.91 km) |
| Serik to Novi di Modena | 1,185.55 mi (1,907.96 km) |
| Serik to Novi Ligure | 1,280.60 mi (2,060.92 km) |
| Serik to Nuoro | 1,195.12 mi (1,923.36 km) |
| Serik to Occhiobello | 1,155.23 mi (1,859.16 km) |
| Serik to Oderzo | 1,138.77 mi (1,832.67 km) |
| Serik to Oggiono | 1,277.81 mi (2,056.43 km) |
| Serik to Olbia | 1,190.28 mi (1,915.58 km) |
| Serik to Oleggio | 1,305.91 mi (2,101.66 km) |
| Serik to Olgiate Comasco | 1,295.09 mi (2,084.25 km) |
| Serik to Olgiate Olona | 1,295.30 mi (2,084.59 km) |
| Serik to Omegna | 1,322.65 mi (2,128.60 km) |
| Serik to Opera | 1,274.28 mi (2,050.75 km) |
| Serik to Oppeano | 1,183.03 mi (1,903.91 km) |
| Serik to Orbassano | 1,344.07 mi (2,163.07 km) |
