| Llantwit Major to Noventa Vicentina | 806.42 mi (1,297.81 km) |
| Llantwit Major to Novi di Modena | 798.84 mi (1,285.61 km) |
| Llantwit Major to Novi Ligure | 727.20 mi (1,170.32 km) |
| Llantwit Major to Nuoro | 980.36 mi (1,577.73 km) |
| Llantwit Major to Occhiobello | 823.54 mi (1,325.36 km) |
| Llantwit Major to Oderzo | 824.32 mi (1,326.62 km) |
| Llantwit Major to Oggiono | 701.61 mi (1,129.14 km) |
| Llantwit Major to Olbia | 951.51 mi (1,531.31 km) |
| Llantwit Major to Oleggio | 682.85 mi (1,098.95 km) |
| Llantwit Major to Olgiate Comasco | 687.17 mi (1,105.90 km) |
| Llantwit Major to Olgiate Olona | 690.63 mi (1,111.46 km) |
| Llantwit Major to Omegna | 662.15 mi (1,065.63 km) |
| Llantwit Major to Opera | 714.09 mi (1,149.22 km) |
| Llantwit Major to Oppeano | 792.17 mi (1,274.88 km) |
| Llantwit Major to Orbassano | 671.47 mi (1,080.63 km) |
