| National City to Mendota (California) | 338.40 mi (544.60 km) |
| National City to Mendota Heights (Minnesota) | 1,532.90 mi (2,466.97 km) |
| National City to Menifee (California) | 71.03 mi (114.31 km) |
| National City to Menlo Park (California) | 438.37 mi (705.49 km) |
| National City to Menomonee Falls (Wisconsin) | 1,726.21 mi (2,778.07 km) |
| National City to Menomonie (Wisconsin) | 1,588.08 mi (2,555.77 km) |
| National City to Mentor (Ohio) | 2,048.40 mi (3,296.58 km) |
| National City to Mequon (Wisconsin) | 1,734.52 mi (2,791.43 km) |
| National City to Merced (California) | 373.28 mi (600.74 km) |
| National City to Mercedes (Texas) | 1,236.97 mi (1,990.71 km) |
| National City to Mercer Island (Washington) | 1,064.05 mi (1,712.43 km) |
| National City to Mercerville (New Jersey) | 2,390.52 mi (3,847.17 km) |
| National City to Meriden (Connecticut) | 2,488.45 mi (4,004.77 km) |
| National City to Meridian (Idaho) | 757.26 mi (1,218.69 km) |
| National City to Meridian (Mississippi) | 1,650.12 mi (2,655.61 km) |
