| Donegal to Teisendorf | 1,014.40 mi (1,632.52 km) |
| Donegal to Telgte | 679.89 mi (1,094.18 km) |
| Donegal to Teltow | 888.18 mi (1,429.39 km) |
| Donegal to Templin | 882.86 mi (1,420.83 km) |
| Donegal to Teningen | 818.40 mi (1,317.08 km) |
| Donegal to Tettnang | 902.15 mi (1,451.88 km) |
| Donegal to Teutschenthal | 852.78 mi (1,372.41 km) |
| Donegal to Thale | 815.13 mi (1,311.83 km) |
| Donegal to Tholey | 733.59 mi (1,180.59 km) |
| Donegal to Timmendorfer Strand | 760.33 mi (1,223.63 km) |
| Donegal to Tirschenreuth | 921.01 mi (1,482.23 km) |
| Donegal to Titisee-Neustadt | 842.25 mi (1,355.48 km) |
| Donegal to Toging am Inn | 989.13 mi (1,591.86 km) |
| Donegal to Tonisvorst | 648.10 mi (1,043.02 km) |
| Donegal to Torgau | 897.80 mi (1,444.86 km) |
