| Southborough to Kilgore (Texas) | 4,717.89 mi (7,592.70 km) |
| Southborough to Killeen (Texas) | 4,898.25 mi (7,882.96 km) |
| Southborough to King City (California) | 5,435.02 mi (8,746.83 km) |
| Southborough to King of Prussia (Pennsylvania) | 3,568.02 mi (5,742.17 km) |
| Southborough to Kingman (Arizona) | 5,264.95 mi (8,473.12 km) |
| Southborough to Kings Mountain (North Carolina) | 4,034.68 mi (6,493.19 km) |
| Southborough to Kings Park (New York) | 3,446.27 mi (5,546.24 km) |
| Southborough to Kings Park West (Virginia) | 3,703.12 mi (5,959.60 km) |
| Southborough to Kingsburg (California) | 5,369.02 mi (8,640.60 km) |
| Southborough to Kingsland (Georgia) | 4,262.84 mi (6,860.38 km) |
| Southborough to Kingsport (Tennessee) | 4,022.77 mi (6,474.02 km) |
| Southborough to Kingston (New York) | 3,432.71 mi (5,524.41 km) |
| Southborough to Kingston (Pennsylvania) | 3,537.89 mi (5,693.69 km) |
| Southborough to Kingstowne (Virginia) | 3,699.27 mi (5,953.39 km) |
| Southborough to Kingsville (Texas) | 5,090.22 mi (8,191.91 km) |
