| National City to Marrero (Louisiana) | 1,600.76 mi (2,576.17 km) |
| National City to Marshall (Minnesota) | 1,403.12 mi (2,258.11 km) |
| National City to Marshall (Missouri) | 1,405.00 mi (2,261.14 km) |
| National City to Marshall (Texas) | 1,321.50 mi (2,126.75 km) |
| National City to Marshalltown (Iowa) | 1,471.05 mi (2,367.42 km) |
| National City to Marshfield (Wisconsin) | 1,661.12 mi (2,673.32 km) |
| National City to Martha Lake (Washington) | 1,082.75 mi (1,742.51 km) |
| National City to Martin (Tennessee) | 1,622.39 mi (2,610.98 km) |
| National City to Martinez (California) | 464.34 mi (747.29 km) |
| National City to Martinez (Georgia) | 2,017.17 mi (3,246.32 km) |
| National City to Martinsburg (West Virginia) | 2,216.80 mi (3,567.60 km) |
| National City to Martinsville (Indiana) | 1,766.21 mi (2,842.44 km) |
| National City to Martinsville (New Jersey) | 2,396.29 mi (3,856.45 km) |
| National City to Martinsville (Virginia) | 2,120.56 mi (3,412.72 km) |
| National City to Maryland City (Maryland) | 2,279.86 mi (3,669.08 km) |
