| South Portland to Thornaby on Tees | 3,078.00 mi (4,953.56 km) |
| South Portland to Thornbury | 3,087.78 mi (4,969.31 km) |
| South Portland to Thorne | 3,109.69 mi (5,004.56 km) |
| South Portland to Thornton | 3,071.14 mi (4,942.52 km) |
| South Portland to Thornton Heath | 3,190.91 mi (5,135.27 km) |
| South Portland to Thorpe Saint Andrew | 3,221.15 mi (5,183.95 km) |
| South Portland to Thundersley | 3,215.35 mi (5,174.60 km) |
| South Portland to Tilbury | 3,208.49 mi (5,163.56 km) |
| South Portland to Tilehurst | 3,151.65 mi (5,072.10 km) |
| South Portland to Timperley | 3,060.01 mi (4,924.61 km) |
| South Portland to Tipton | 3,087.08 mi (4,968.18 km) |
| South Portland to Tiptree | 3,216.27 mi (5,176.08 km) |
| South Portland to Tiverton | 3,063.01 mi (4,929.44 km) |
| South Portland to Todmorden | 3,062.95 mi (4,929.35 km) |
| South Portland to Tonbridge | 3,211.24 mi (5,167.99 km) |
