| Swansea to Mount Washington (Kentucky) | 242.78 mi (390.71 km) |
| Swansea to Mountain Brook (Alabama) | 394.01 mi (634.10 km) |
| Swansea to Mountain Home (Arkansas) | 201.83 mi (324.81 km) |
| Swansea to Mountain Home (Idaho) | 1,374.84 mi (2,212.59 km) |
| Swansea to Mountain House (California) | 1,706.94 mi (2,747.06 km) |
| Swansea to Mountain Park (Georgia) | 460.48 mi (741.06 km) |
| Swansea to Mountain Top (Pennsylvania) | 767.12 mi (1,234.56 km) |
| Swansea to Mountain View (California) | 1,740.90 mi (2,801.70 km) |
| Swansea to Mountlake Terrace (Washington) | 1,733.83 mi (2,790.33 km) |
| Swansea to Mukilteo (Washington) | 1,735.01 mi (2,792.23 km) |
| Swansea to Muncie (Indiana) | 270.30 mi (435.01 km) |
| Swansea to Mundelein (Illinois) | 277.13 mi (446.00 km) |
| Swansea to Munhall (Pennsylvania) | 552.43 mi (889.04 km) |
| Swansea to Munster (Indiana) | 245.09 mi (394.44 km) |
| Swansea to Murfreesboro (Tennessee) | 271.12 mi (436.32 km) |
