| Swansea to Oswaldtwistle | 4,044.44 mi (6,508.90 km) |
| Swansea to Oswestry | 4,043.96 mi (6,508.12 km) |
| Swansea to Otley | 4,066.26 mi (6,544.01 km) |
| Swansea to Ovenden | 4,063.69 mi (6,539.88 km) |
| Swansea to Oxford | 4,144.80 mi (6,670.41 km) |
| Swansea to Oxted | 4,208.17 mi (6,772.40 km) |
| Swansea to Padbury | 4,150.06 mi (6,678.87 km) |
| Swansea to Padiham | 4,046.01 mi (6,511.43 km) |
| Swansea to Paignton | 4,092.78 mi (6,586.69 km) |
| Swansea to Paisley | 3,914.40 mi (6,299.61 km) |
| Swansea to Palmers Green | 4,193.12 mi (6,748.17 km) |
| Swansea to Parkstone | 4,148.77 mi (6,676.80 km) |
| Swansea to Partick | 3,917.83 mi (6,305.13 km) |
| Swansea to Patcham | 4,214.71 mi (6,782.92 km) |
| Swansea to Peebles | 3,963.98 mi (6,379.42 km) |
