| South San Francisco to Morris (Illinois) | 1,818.06 mi (2,925.89 km) |
| South San Francisco to Morristown (New Jersey) | 2,543.27 mi (4,093.00 km) |
| South San Francisco to Morristown (Tennessee) | 2,147.24 mi (3,455.65 km) |
| South San Francisco to Morrisville (North Carolina) | 2,394.51 mi (3,853.60 km) |
| South San Francisco to Morro Bay (California) | 180.42 mi (290.36 km) |
| South San Francisco to Morton (Illinois) | 1,767.47 mi (2,844.47 km) |
| South San Francisco to Morton Grove (Illinois) | 1,848.94 mi (2,975.59 km) |
| South San Francisco to Moscow (Idaho) | 685.39 mi (1,103.02 km) |
| South San Francisco to Moses Lake (Washington) | 673.81 mi (1,084.40 km) |
| South San Francisco to Moss Bluff (Louisiana) | 1,741.06 mi (2,801.97 km) |
| South San Francisco to Moss Point (Mississippi) | 1,991.90 mi (3,205.66 km) |
| South San Francisco to Moultrie (Georgia) | 2,232.15 mi (3,592.30 km) |
| South San Francisco to Mounds View (Minnesota) | 1,589.35 mi (2,557.80 km) |
| South San Francisco to Mount Airy (North Carolina) | 2,286.39 mi (3,679.59 km) |
| South San Francisco to Mount Clemens (Michigan) | 2,097.10 mi (3,374.96 km) |
