| Diamond Bar to Melzo | 6,031.29 mi (9,706.42 km) |
| Diamond Bar to Mendicino | 6,583.46 mi (10,595.05 km) |
| Diamond Bar to Menfi | 6,566.33 mi (10,567.48 km) |
| Diamond Bar to Mentana | 6,319.19 mi (10,169.75 km) |
| Diamond Bar to Merano | 6,024.64 mi (9,695.71 km) |
| Diamond Bar to Merate | 6,021.44 mi (9,690.58 km) |
| Diamond Bar to Mercato San Severino | 6,454.11 mi (10,386.89 km) |
| Diamond Bar to Mercogliano | 6,445.70 mi (10,373.36 km) |
| Diamond Bar to Mesagne | 6,560.99 mi (10,558.90 km) |
| Diamond Bar to Messina | 6,621.64 mi (10,656.50 km) |
| Diamond Bar to Mestre | 6,120.31 mi (9,849.69 km) |
| Diamond Bar to Mestrino | 6,107.93 mi (9,829.76 km) |
| Diamond Bar to Milan | 6,025.73 mi (9,697.48 km) |
| Diamond Bar to Milazzo | 6,609.90 mi (10,637.61 km) |
| Diamond Bar to Minerbio | 6,142.87 mi (9,886.00 km) |
