| Castlebar to Sceaux | 610.16 mi (981.96 km) |
| Castlebar to Schiltigheim | 819.23 mi (1,318.42 km) |
| Castlebar to Scionzier | 883.81 mi (1,422.36 km) |
| Castlebar to Seclin | 569.01 mi (915.74 km) |
| Castlebar to Sedan | 671.50 mi (1,080.67 km) |
| Castlebar to Selestat | 821.22 mi (1,321.63 km) |
| Castlebar to Sene | 517.46 mi (832.77 km) |
| Castlebar to Senlis | 602.44 mi (969.53 km) |
| Castlebar to Sens | 670.95 mi (1,079.78 km) |
| Castlebar to Septemes-les-Vallons | 981.61 mi (1,579.76 km) |
| Castlebar to Serris | 624.35 mi (1,004.80 km) |
| Castlebar to Sete | 931.89 mi (1,499.74 km) |
| Castlebar to Sevran | 612.04 mi (984.99 km) |
| Castlebar to Sevres | 605.40 mi (974.30 km) |
| Castlebar to Seynod | 876.18 mi (1,410.07 km) |
