| Swansea to Noventa Vicentina | 4,874.62 mi (7,844.94 km) |
| Swansea to Novi di Modena | 4,865.16 mi (7,829.72 km) |
| Swansea to Novi Ligure | 4,785.37 mi (7,701.30 km) |
| Swansea to Nuoro | 4,984.52 mi (8,021.81 km) |
| Swansea to Occhiobello | 4,891.10 mi (7,871.46 km) |
| Swansea to Oderzo | 4,892.13 mi (7,873.13 km) |
| Swansea to Oggiono | 4,768.22 mi (7,673.70 km) |
| Swansea to Olbia | 4,967.37 mi (7,994.21 km) |
| Swansea to Oleggio | 4,746.67 mi (7,639.02 km) |
| Swansea to Olgiate Comasco | 4,752.93 mi (7,649.11 km) |
| Swansea to Olgiate Olona | 4,755.40 mi (7,653.08 km) |
| Swansea to Omegna | 4,726.90 mi (7,607.22 km) |
| Swansea to Opera | 4,778.46 mi (7,690.18 km) |
| Swansea to Oppeano | 4,860.10 mi (7,821.58 km) |
| Swansea to Orbassano | 4,725.06 mi (7,604.25 km) |
