| Placentia to Montgomeryville (Pennsylvania) | 2,367.09 mi (3,809.46 km) |
| Placentia to Monticello (Minnesota) | 1,495.49 mi (2,406.77 km) |
| Placentia to Montrose (Colorado) | 640.80 mi (1,031.27 km) |
| Placentia to Moody (Alabama) | 1,794.79 mi (2,888.43 km) |
| Placentia to Moore (Oklahoma) | 1,161.24 mi (1,868.84 km) |
| Placentia to Moorestown-Lenola (New Jersey) | 2,382.83 mi (3,834.79 km) |
| Placentia to Mooresville (North Carolina) | 2,093.49 mi (3,369.15 km) |
| Placentia to Moorhead (Minnesota) | 1,420.23 mi (2,285.64 km) |
| Placentia to Moorpark (California) | 64.82 mi (104.32 km) |
| Placentia to Moraga (California) | 363.33 mi (584.72 km) |
| Placentia to Moreno Valley (California) | 37.44 mi (60.26 km) |
| Placentia to Morgan City (Louisiana) | 1,587.56 mi (2,554.94 km) |
| Placentia to Morgan Hill (California) | 309.52 mi (498.13 km) |
| Placentia to Morganton (North Carolina) | 2,043.47 mi (3,288.65 km) |
| Placentia to Morgantown (West Virginia) | 2,119.63 mi (3,411.21 km) |
