| Diamond Bar to Montevarchi | 6,203.73 mi (9,983.94 km) |
| Diamond Bar to Monticello Conte Otto | 6,094.28 mi (9,807.80 km) |
| Diamond Bar to Montichiari | 6,066.67 mi (9,763.37 km) |
| Diamond Bar to Montignoso | 6,132.71 mi (9,869.65 km) |
| Diamond Bar to Montopoli in Val d'Arno | 6,169.99 mi (9,929.64 km) |
| Diamond Bar to Monza | 6,022.37 mi (9,692.07 km) |
| Diamond Bar to Morbegno | 6,003.19 mi (9,661.20 km) |
| Diamond Bar to Mori | 6,062.43 mi (9,756.54 km) |
| Diamond Bar to Morlupo | 6,307.69 mi (10,151.24 km) |
| Diamond Bar to Morrovalle | 6,278.88 mi (10,104.88 km) |
| Diamond Bar to Mortara | 6,022.73 mi (9,692.64 km) |
| Diamond Bar to Mosciano Sant'Angelo | 6,318.98 mi (10,169.42 km) |
| Diamond Bar to Motta di Livenza | 6,116.18 mi (9,843.04 km) |
| Diamond Bar to Motta Sant'Anastasia | 6,640.14 mi (10,686.28 km) |
| Diamond Bar to Mottola | 6,533.70 mi (10,514.97 km) |
