| Tonypandy to Noventa Vicentina | 812.11 mi (1,306.96 km) |
| Tonypandy to Novi di Modena | 805.22 mi (1,295.87 km) |
| Tonypandy to Novi Ligure | 734.90 mi (1,182.71 km) |
| Tonypandy to Nuoro | 990.53 mi (1,594.10 km) |
| Tonypandy to Occhiobello | 829.54 mi (1,335.01 km) |
| Tonypandy to Oderzo | 829.06 mi (1,334.24 km) |
| Tonypandy to Oggiono | 707.99 mi (1,139.40 km) |
| Tonypandy to Olbia | 961.32 mi (1,547.10 km) |
| Tonypandy to Oleggio | 689.85 mi (1,110.21 km) |
| Tonypandy to Olgiate Comasco | 693.78 mi (1,116.53 km) |
| Tonypandy to Olgiate Olona | 697.44 mi (1,122.42 km) |
| Tonypandy to Omegna | 669.00 mi (1,076.65 km) |
| Tonypandy to Opera | 720.95 mi (1,160.26 km) |
| Tonypandy to Oppeano | 798.02 mi (1,284.30 km) |
| Tonypandy to Orbassano | 679.73 mi (1,093.91 km) |
