| Diamond Bar to Marsala | 6,537.67 mi (10,521.36 km) |
| Diamond Bar to Marsciano | 6,260.80 mi (10,075.79 km) |
| Diamond Bar to Martano | 6,596.89 mi (10,616.67 km) |
| Diamond Bar to Martellago | 6,114.84 mi (9,840.88 km) |
| Diamond Bar to Martina Franca | 6,539.22 mi (10,523.86 km) |
| Diamond Bar to Martinengo | 6,038.82 mi (9,718.54 km) |
| Diamond Bar to Martinsicuro | 6,312.80 mi (10,159.47 km) |
| Diamond Bar to Mascali | 6,634.26 mi (10,676.81 km) |
| Diamond Bar to Mascalucia | 6,639.29 mi (10,684.90 km) |
| Diamond Bar to Masera di Padova | 6,118.11 mi (9,846.15 km) |
| Diamond Bar to Maserada sul Piave | 6,108.87 mi (9,831.27 km) |
| Diamond Bar to Massa | 6,130.76 mi (9,866.51 km) |
| Diamond Bar to Massa Lombarda | 6,162.64 mi (9,917.81 km) |
| Diamond Bar to Massafra | 6,539.07 mi (10,523.61 km) |
| Diamond Bar to Massalubrense | 6,449.81 mi (10,379.96 km) |
