| Herisau to Tarsus | 1,488.91 mi (2,396.17 km) |
| Herisau to Taskopru | 1,289.19 mi (2,074.76 km) |
| Herisau to Taslicay | 1,775.03 mi (2,856.63 km) |
| Herisau to Tasova | 1,410.49 mi (2,269.96 km) |
| Herisau to Tatvan | 1,763.11 mi (2,837.45 km) |
| Herisau to Tavas | 1,210.20 mi (1,947.63 km) |
| Herisau to Tavsanli | 1,145.08 mi (1,842.83 km) |
| Herisau to Tefenni | 1,251.31 mi (2,013.79 km) |
| Herisau to Tekirdag | 1,003.42 mi (1,614.85 km) |
| Herisau to Tekkekoy | 1,402.25 mi (2,256.70 km) |
| Herisau to Tekman | 1,687.62 mi (2,715.96 km) |
| Herisau to Tire | 1,131.74 mi (1,821.35 km) |
| Herisau to Tirebolu | 1,518.32 mi (2,443.50 km) |
| Herisau to Tokat | 1,435.82 mi (2,310.74 km) |
| Herisau to Tomarza | 1,468.17 mi (2,362.80 km) |
