| Irondale to Sesena | 4,440.94 mi (7,147.00 km) |
| Irondale to Sestao | 4,388.01 mi (7,061.82 km) |
| Irondale to Sevilla | 4,406.16 mi (7,091.02 km) |
| Irondale to Sevilla La Nueva | 4,418.28 mi (7,110.53 km) |
| Irondale to Silla | 4,621.24 mi (7,437.16 km) |
| Irondale to Silleda | 4,156.50 mi (6,689.24 km) |
| Irondale to Sitges | 4,670.95 mi (7,517.17 km) |
| Irondale to Socuellamos | 4,507.46 mi (7,254.06 km) |
| Irondale to Soller | 4,757.92 mi (7,657.13 km) |
| Irondale to Solsona | 4,634.99 mi (7,459.30 km) |
| Irondale to Son Servera | 4,793.78 mi (7,714.84 km) |
| Irondale to Sonseca | 4,439.74 mi (7,145.07 km) |
| Irondale to Sopelana | 4,387.39 mi (7,060.82 km) |
| Irondale to Soria | 4,454.56 mi (7,168.92 km) |
| Irondale to Suances | 4,336.19 mi (6,978.42 km) |
