| Porthcawl to Orthez | 568.64 mi (915.13 km) |
| Porthcawl to Orvault | 305.25 mi (491.25 km) |
| Porthcawl to Osny | 304.03 mi (489.28 km) |
| Porthcawl to Ostwald | 544.52 mi (876.31 km) |
| Porthcawl to Ouistreham | 214.40 mi (345.04 km) |
| Porthcawl to Oullins | 555.59 mi (894.14 km) |
| Porthcawl to Outreau | 235.43 mi (378.88 km) |
| Porthcawl to Oyonnax | 556.64 mi (895.82 km) |
| Porthcawl to Ozoir-la-Ferriere | 338.13 mi (544.17 km) |
| Porthcawl to Pace | 245.55 mi (395.17 km) |
| Porthcawl to Palaiseau | 324.99 mi (523.02 km) |
| Porthcawl to Pamiers | 628.58 mi (1,011.59 km) |
| Porthcawl to Panazol | 451.40 mi (726.46 km) |
| Porthcawl to Pantin | 323.07 mi (519.94 km) |
| Porthcawl to Paray-le-Monial | 495.69 mi (797.73 km) |
