| Swansea to Missouri City (Texas) | 697.19 mi (1,122.01 km) |
| Swansea to Mitchell (South Dakota) | 550.34 mi (885.69 km) |
| Swansea to Mitchellville (Maryland) | 709.68 mi (1,142.11 km) |
| Swansea to Moberly (Missouri) | 144.61 mi (232.72 km) |
| Swansea to Mobile (Alabama) | 554.19 mi (891.88 km) |
| Swansea to Modesto (California) | 1,679.75 mi (2,703.30 km) |
| Swansea to Mokena (Illinois) | 234.25 mi (376.98 km) |
| Swansea to Moline (Illinois) | 204.30 mi (328.79 km) |
| Swansea to Moncks Corner (South Carolina) | 670.22 mi (1,078.61 km) |
| Swansea to Monfort Heights (Ohio) | 292.56 mi (470.83 km) |
| Swansea to Monmouth (Oregon) | 1,755.93 mi (2,825.90 km) |
| Swansea to Monroe (Georgia) | 479.42 mi (771.55 km) |
| Swansea to Monroe (Louisiana) | 433.02 mi (696.88 km) |
| Swansea to Monroe (Michigan) | 418.47 mi (673.45 km) |
| Swansea to Monroe (North Carolina) | 575.88 mi (926.80 km) |
