| Letterkenny to Rovinj | 1,160.25 mi (1,867.25 km) |
| Letterkenny to Samobor | 1,202.35 mi (1,935.00 km) |
| Letterkenny to Sesvete | 1,215.70 mi (1,956.47 km) |
| Letterkenny to Sibenik | 1,305.07 mi (2,100.30 km) |
| Letterkenny to Sinj | 1,333.22 mi (2,145.62 km) |
| Letterkenny to Sisak | 1,240.62 mi (1,996.58 km) |
| Letterkenny to Slatina | 1,280.32 mi (2,060.47 km) |
| Letterkenny to Slavonski Brod | 1,315.71 mi (2,117.43 km) |
| Letterkenny to Solin | 1,336.42 mi (2,150.76 km) |
| Letterkenny to Split | 1,335.53 mi (2,149.32 km) |
| Letterkenny to Sveti Ivan Zelina | 1,214.73 mi (1,954.92 km) |
| Letterkenny to Trilj | 1,340.23 mi (2,156.89 km) |
| Letterkenny to Trogir | 1,328.49 mi (2,138.00 km) |
| Letterkenny to Umag | 1,139.55 mi (1,833.92 km) |
| Letterkenny to Valpovo | 1,308.71 mi (2,106.17 km) |
