| Guardiagrele to Mauldin (South Carolina) | 4,953.54 mi (7,971.95 km) |
| Guardiagrele to Maumee (Ohio) | 4,719.19 mi (7,594.81 km) |
| Guardiagrele to Maumelle (Arkansas) | 5,380.76 mi (8,659.50 km) |
| Guardiagrele to Mayagüez (Puerto Rico) | 4,947.41 mi (7,962.09 km) |
| Guardiagrele to Mayfield Heights (Ohio) | 4,630.48 mi (7,452.04 km) |
| Guardiagrele to Mays Chapel (Maryland) | 4,511.21 mi (7,260.09 km) |
| Guardiagrele to Maywood (California) | 6,371.66 mi (10,254.20 km) |
| Guardiagrele to Maywood (Illinois) | 4,873.75 mi (7,843.54 km) |
| Guardiagrele to McAlester (Oklahoma) | 5,514.26 mi (8,874.35 km) |
| Guardiagrele to McAllen (Texas) | 6,048.46 mi (9,734.05 km) |
| Guardiagrele to McCalla (Alabama) | 5,226.05 mi (8,410.52 km) |
| Guardiagrele to McComb (Mississippi) | 5,470.43 mi (8,803.81 km) |
| Guardiagrele to McDonough (Georgia) | 5,094.09 mi (8,198.15 km) |
| Guardiagrele to McFarland (California) | 6,306.04 mi (10,148.59 km) |
| Guardiagrele to McHenry (Illinois) | 4,871.11 mi (7,839.29 km) |
