| Swansea to Syston | 4,123.65 mi (6,636.37 km) |
| Swansea to Tadley | 4,161.43 mi (6,697.18 km) |
| Swansea to Tadworth | 4,197.90 mi (6,755.86 km) |
| Swansea to Tamworth | 4,102.22 mi (6,601.88 km) |
| Swansea to Taunton | 4,094.30 mi (6,589.14 km) |
| Swansea to Tavistock | 4,066.14 mi (6,543.82 km) |
| Swansea to Teignmouth | 4,092.38 mi (6,586.04 km) |
| Swansea to Telford | 4,072.28 mi (6,553.71 km) |
| Swansea to Tewkesbury | 4,102.97 mi (6,603.08 km) |
| Swansea to Thame | 4,155.96 mi (6,688.37 km) |
| Swansea to Thames Ditton | 4,191.55 mi (6,745.64 km) |
| Swansea to Thatcham | 4,154.89 mi (6,686.65 km) |
| Swansea to Thatto Heath | 4,039.62 mi (6,501.14 km) |
| Swansea to The Mumbles | 4,043.16 mi (6,506.83 km) |
| Swansea to Thetford | 4,201.22 mi (6,761.21 km) |
