| Swansea to Montgomeryville (Pennsylvania) | 795.01 mi (1,279.45 km) |
| Swansea to Monticello (Minnesota) | 505.65 mi (813.77 km) |
| Swansea to Montrose (Colorado) | 964.81 mi (1,552.72 km) |
| Swansea to Moody (Alabama) | 393.68 mi (633.56 km) |
| Swansea to Moore (Oklahoma) | 469.48 mi (755.56 km) |
| Swansea to Moorestown-Lenola (New Jersey) | 808.58 mi (1,301.29 km) |
| Swansea to Mooresville (North Carolina) | 544.63 mi (876.50 km) |
| Swansea to Moorhead (Minnesota) | 668.72 mi (1,076.21 km) |
| Swansea to Moorpark (California) | 1,626.17 mi (2,617.07 km) |
| Swansea to Moraga (California) | 1,736.75 mi (2,795.04 km) |
| Swansea to Moreno Valley (California) | 1,544.18 mi (2,485.11 km) |
| Swansea to Morgan City (Louisiana) | 615.10 mi (989.91 km) |
| Swansea to Morgan Hill (California) | 1,721.52 mi (2,770.52 km) |
| Swansea to Morganton (North Carolina) | 495.66 mi (797.69 km) |
| Swansea to Morgantown (West Virginia) | 543.27 mi (874.32 km) |
