| Derry to Todi | 1,223.96 mi (1,969.77 km) |
| Derry to Tolentino | 1,229.92 mi (1,979.36 km) |
| Derry to Tolmezzo | 1,064.49 mi (1,713.13 km) |
| Derry to Torre Annunziata | 1,398.38 mi (2,250.48 km) |
| Derry to Torre Boldone | 982.85 mi (1,581.74 km) |
| Derry to Torre del Greco | 1,395.25 mi (2,245.44 km) |
| Derry to Torre Maggiore | 1,376.30 mi (2,214.94 km) |
| Derry to Torre Santa Susanna | 1,523.01 mi (2,451.05 km) |
| Derry to Torri di Quartesolo | 1,057.22 mi (1,701.42 km) |
| Derry to Tortoli | 1,301.30 mi (2,094.23 km) |
| Derry to Tortona | 998.50 mi (1,606.93 km) |
| Derry to Tortoreto | 1,272.22 mi (2,047.45 km) |
| Derry to Tradate | 958.10 mi (1,541.92 km) |
| Derry to Trani | 1,436.30 mi (2,311.50 km) |
| Derry to Trapani | 1,494.69 mi (2,405.48 km) |
