| Letterkenny to Roeselare | 528.86 mi (851.12 km) |
| Letterkenny to Ronse | 553.60 mi (890.93 km) |
| Letterkenny to Rotselaar | 585.66 mi (942.53 km) |
| Letterkenny to Rumst | 569.97 mi (917.27 km) |
| Letterkenny to Saint-Ghislain | 573.60 mi (923.12 km) |
| Letterkenny to Saint-Nicolas | 627.74 mi (1,010.25 km) |
| Letterkenny to Saint-Vith | 663.14 mi (1,067.23 km) |
| Letterkenny to Scherpenheuvel | 593.05 mi (954.42 km) |
| Letterkenny to Schilde | 569.95 mi (917.25 km) |
| Letterkenny to Schoten | 566.89 mi (912.32 km) |
| Letterkenny to Seneffe | 585.43 mi (942.17 km) |
| Letterkenny to Seraing | 628.44 mi (1,011.38 km) |
| Letterkenny to Sint-Amandsberg | 546.87 mi (880.11 km) |
| Letterkenny to Sint-Andries | 520.89 mi (838.29 km) |
| Letterkenny to Sint-Genesius-Rode | 580.40 mi (934.07 km) |
