| Southborough to Troy (Michigan) | 3,768.89 mi (6,065.45 km) |
| Southborough to Troy (Missouri) | 4,239.38 mi (6,822.63 km) |
| Southborough to Troy (New York) | 3,385.87 mi (5,449.04 km) |
| Southborough to Troy (Ohio) | 3,925.87 mi (6,318.08 km) |
| Southborough to Truckee (California) | 5,226.16 mi (8,410.70 km) |
| Southborough to Trujillo Alto (Puerto Rico) | 4,214.60 mi (6,782.74 km) |
| Southborough to Trumbull Center (Connecticut) | 3,428.61 mi (5,517.81 km) |
| Southborough to Trussville (Alabama) | 4,325.17 mi (6,960.69 km) |
| Southborough to Tualatin (Oregon) | 4,953.17 mi (7,971.36 km) |
| Southborough to Tuckahoe (Virginia) | 3,770.47 mi (6,067.98 km) |
| Southborough to Tucker (Georgia) | 4,218.32 mi (6,788.73 km) |
| Southborough to Tucson (Arizona) | 5,328.09 mi (8,574.73 km) |
| Southborough to Tucson Estates (Arizona) | 5,335.39 mi (8,586.48 km) |
| Southborough to Tucson Mountains (Arizona) | 5,327.97 mi (8,574.53 km) |
| Southborough to Tukwila (Washington) | 4,819.60 mi (7,756.39 km) |
