| Dundalk to Syston | 3,562.62 mi (5,733.48 km) |
| Dundalk to Tadley | 3,588.24 mi (5,774.71 km) |
| Dundalk to Tadworth | 3,626.19 mi (5,835.79 km) |
| Dundalk to Tamworth | 3,539.28 mi (5,695.92 km) |
| Dundalk to Taunton | 3,514.03 mi (5,655.29 km) |
| Dundalk to Tavistock | 3,479.60 mi (5,599.87 km) |
| Dundalk to Teignmouth | 3,507.25 mi (5,644.38 km) |
| Dundalk to Telford | 3,508.19 mi (5,645.89 km) |
| Dundalk to Tewkesbury | 3,533.24 mi (5,686.20 km) |
| Dundalk to Thame | 3,586.64 mi (5,772.14 km) |
| Dundalk to Thames Ditton | 3,620.47 mi (5,826.58 km) |
| Dundalk to Thatcham | 3,581.90 mi (5,764.51 km) |
| Dundalk to Thatto Heath | 3,481.98 mi (5,603.71 km) |
| Dundalk to The Mumbles | 3,465.93 mi (5,577.88 km) |
| Dundalk to Thetford | 3,641.55 mi (5,860.50 km) |
