| Swansea to Linslade | 4,162.00 mi (6,698.09 km) |
| Swansea to Lisburn | 3,887.82 mi (6,256.83 km) |
| Swansea to Liskeard | 4,056.10 mi (6,527.66 km) |
| Swansea to Litherland | 4,029.12 mi (6,484.24 km) |
| Swansea to Little Bookham | 4,192.59 mi (6,747.32 km) |
| Swansea to Little Hulton | 4,049.42 mi (6,516.91 km) |
| Swansea to Little Lever | 4,050.34 mi (6,518.40 km) |
| Swansea to Littleborough | 4,058.25 mi (6,531.12 km) |
| Swansea to Littlehampton | 4,201.13 mi (6,761.06 km) |
| Swansea to Littleover | 4,101.55 mi (6,600.81 km) |
| Swansea to Littleport | 4,183.34 mi (6,732.43 km) |
| Swansea to Liverpool | 4,031.18 mi (6,487.55 km) |
| Swansea to Liversedge | 4,071.74 mi (6,552.83 km) |
| Swansea to Livingston | 3,946.25 mi (6,350.87 km) |
| Swansea to Llanelli | 4,033.64 mi (6,491.52 km) |
