| Letterkenny to Sceaux | 602.74 mi (970.02 km) |
| Letterkenny to Schiltigheim | 790.86 mi (1,272.76 km) |
| Letterkenny to Scionzier | 875.11 mi (1,408.35 km) |
| Letterkenny to Seclin | 542.10 mi (872.42 km) |
| Letterkenny to Sedan | 644.72 mi (1,037.58 km) |
| Letterkenny to Selestat | 796.10 mi (1,281.21 km) |
| Letterkenny to Sene | 550.42 mi (885.82 km) |
| Letterkenny to Senlis | 589.96 mi (949.45 km) |
| Letterkenny to Sens | 663.02 mi (1,067.03 km) |
| Letterkenny to Septemes-les-Vallons | 990.10 mi (1,593.41 km) |
| Letterkenny to Serris | 613.81 mi (987.83 km) |
| Letterkenny to Sete | 947.56 mi (1,524.96 km) |
| Letterkenny to Sevran | 602.13 mi (969.03 km) |
| Letterkenny to Sevres | 598.02 mi (962.43 km) |
| Letterkenny to Seynod | 870.18 mi (1,400.41 km) |
