| Swansea to Lydney | 4,096.23 mi (6,592.25 km) |
| Swansea to Lye | 4,091.15 mi (6,584.06 km) |
| Swansea to Lymington | 4,163.34 mi (6,700.25 km) |
| Swansea to Lymm | 4,051.36 mi (6,520.03 km) |
| Swansea to Mablethorpe | 4,155.07 mi (6,686.94 km) |
| Swansea to Macclesfield | 4,068.11 mi (6,546.99 km) |
| Swansea to Mackworth | 4,099.70 mi (6,597.84 km) |
| Swansea to Madeley | 4,073.36 mi (6,555.45 km) |
| Swansea to Maesteg | 4,055.82 mi (6,527.22 km) |
| Swansea to Maghull | 4,029.93 mi (6,485.55 km) |
| Swansea to Maidenhead | 4,172.56 mi (6,715.09 km) |
| Swansea to Maidstone | 4,228.38 mi (6,804.92 km) |
| Swansea to Maldon | 4,219.71 mi (6,790.97 km) |
| Swansea to Maltby | 4,097.68 mi (6,594.58 km) |
| Swansea to Manchester | 4,057.33 mi (6,529.63 km) |
