| Letterkenny to Sprimont | 637.73 mi (1,026.33 km) |
| Letterkenny to Stabroek | 558.98 mi (899.58 km) |
| Letterkenny to Staden | 523.81 mi (842.98 km) |
| Letterkenny to Steenokkerzeel | 579.51 mi (932.63 km) |
| Letterkenny to Stekene | 551.62 mi (887.75 km) |
| Letterkenny to Strombeek-Bever | 574.11 mi (923.94 km) |
| Letterkenny to Temse | 560.81 mi (902.54 km) |
| Letterkenny to Ternat | 569.77 mi (916.95 km) |
| Letterkenny to Tervuren | 583.14 mi (938.47 km) |
| Letterkenny to Tessenderlo | 595.18 mi (957.85 km) |
| Letterkenny to Theux | 641.74 mi (1,032.78 km) |
| Letterkenny to Thuin | 594.85 mi (957.31 km) |
| Letterkenny to Tielt | 533.87 mi (859.18 km) |
| Letterkenny to Tienen | 599.50 mi (964.80 km) |
| Letterkenny to Tongeren | 619.65 mi (997.22 km) |
