| Southborough to Mineral Wells (Texas) | 4,821.21 mi (7,758.99 km) |
| Southborough to Minneapolis (Minnesota) | 4,039.31 mi (6,500.65 km) |
| Southborough to Minnehaha (Washington) | 4,932.90 mi (7,938.74 km) |
| Southborough to Minneola (Florida) | 4,372.43 mi (7,036.75 km) |
| Southborough to Minnetonka (Minnesota) | 4,047.67 mi (6,514.10 km) |
| Southborough to Minooka (Illinois) | 4,018.45 mi (6,467.07 km) |
| Southborough to Minot (North Dakota) | 4,157.46 mi (6,690.78 km) |
| Southborough to Mint Hill (North Carolina) | 4,008.64 mi (6,451.29 km) |
| Southborough to Miramar (Florida) | 4,444.51 mi (7,152.74 km) |
| Southborough to Mishawaka (Indiana) | 3,926.98 mi (6,319.86 km) |
| Southborough to Mission (Texas) | 5,177.64 mi (8,332.61 km) |
| Southborough to Mission Bend (Texas) | 4,888.91 mi (7,867.94 km) |
| Southborough to Mission Viejo (California) | 5,475.43 mi (8,811.85 km) |
| Southborough to Missoula (Montana) | 4,623.10 mi (7,440.17 km) |
| Southborough to Missouri City (Texas) | 4,890.62 mi (7,870.69 km) |
