| Costa Mesa to Mendota Heights (Minnesota) | 1,525.86 mi (2,455.63 km) |
| Costa Mesa to Menifee (California) | 41.93 mi (67.47 km) |
| Costa Mesa to Menlo Park (California) | 355.10 mi (571.48 km) |
| Costa Mesa to Menomonee Falls (Wisconsin) | 1,729.36 mi (2,783.14 km) |
| Costa Mesa to Menomonie (Wisconsin) | 1,582.29 mi (2,546.45 km) |
| Costa Mesa to Mentor (Ohio) | 2,058.64 mi (3,313.06 km) |
| Costa Mesa to Mequon (Wisconsin) | 1,737.46 mi (2,796.17 km) |
| Costa Mesa to Merced (California) | 289.85 mi (466.47 km) |
| Costa Mesa to Mercedes (Texas) | 1,302.53 mi (2,096.22 km) |
| Costa Mesa to Mercer Island (Washington) | 986.29 mi (1,587.28 km) |
| Costa Mesa to Mercerville (New Jersey) | 2,405.01 mi (3,870.49 km) |
| Costa Mesa to Meriden (Connecticut) | 2,499.58 mi (4,022.69 km) |
| Costa Mesa to Meridian (Idaho) | 691.94 mi (1,113.57 km) |
| Costa Mesa to Meridian (Mississippi) | 1,689.63 mi (2,719.19 km) |
| Costa Mesa to Merriam (Kansas) | 1,339.95 mi (2,156.44 km) |
