| Llanelli to Monticello (Minnesota) | 3,863.21 mi (6,217.23 km) |
| Llanelli to Montrose (Colorado) | 4,704.52 mi (7,571.20 km) |
| Llanelli to Moody (Alabama) | 4,131.54 mi (6,649.07 km) |
| Llanelli to Moore (Oklahoma) | 4,482.90 mi (7,214.52 km) |
| Llanelli to Moorestown-Lenola (New Jersey) | 3,363.60 mi (5,413.20 km) |
| Llanelli to Mooresville (North Carolina) | 3,803.54 mi (6,121.20 km) |
| Llanelli to Moorhead (Minnesota) | 3,896.45 mi (6,270.73 km) |
| Llanelli to Moorpark (California) | 5,308.54 mi (8,543.27 km) |
| Llanelli to Moraga (California) | 5,210.68 mi (8,385.78 km) |
| Llanelli to Moreno Valley (California) | 5,273.08 mi (8,486.21 km) |
| Llanelli to Morgan City (Louisiana) | 4,516.88 mi (7,269.21 km) |
| Llanelli to Morgan Hill (California) | 5,236.25 mi (8,426.93 km) |
| Llanelli to Morganton (North Carolina) | 3,832.29 mi (6,167.48 km) |
| Llanelli to Morgantown (West Virginia) | 3,582.17 mi (5,764.94 km) |
| Llanelli to Morris (Illinois) | 3,841.04 mi (6,181.56 km) |
