| Llantwit Major to Nyon | 560.40 mi (901.87 km) |
| Llantwit Major to Oberriet | 650.12 mi (1,046.26 km) |
| Llantwit Major to Obersiggenthal | 592.98 mi (954.30 km) |
| Llantwit Major to Oberwil | 562.83 mi (905.78 km) |
| Llantwit Major to Oberwingert | 610.97 mi (983.26 km) |
| Llantwit Major to Oftringen | 584.43 mi (940.54 km) |
| Llantwit Major to Olten | 582.52 mi (937.47 km) |
| Llantwit Major to Onex | 565.03 mi (909.33 km) |
| Llantwit Major to Opfikon | 605.85 mi (975.03 km) |
| Llantwit Major to Ostermundigen | 582.03 mi (936.69 km) |
| Llantwit Major to Payerne | 566.76 mi (912.11 km) |
| Llantwit Major to Pfaffikon | 616.90 mi (992.80 km) |
| Llantwit Major to Plan-les-Ouates | 566.40 mi (911.53 km) |
| Llantwit Major to Pratteln | 568.43 mi (914.80 km) |
| Llantwit Major to Prilly | 566.79 mi (912.16 km) |
