| Howard to Sesena | 4,121.37 mi (6,632.70 km) |
| Howard to Sestao | 4,026.68 mi (6,480.32 km) |
| Howard to Sevilla | 4,133.65 mi (6,652.47 km) |
| Howard to Sevilla La Nueva | 4,097.44 mi (6,594.20 km) |
| Howard to Silla | 4,293.27 mi (6,909.35 km) |
| Howard to Silleda | 3,826.54 mi (6,158.23 km) |
| Howard to Sitges | 4,310.36 mi (6,936.86 km) |
| Howard to Socuellamos | 4,192.88 mi (6,747.79 km) |
| Howard to Soller | 4,408.93 mi (7,095.49 km) |
| Howard to Solsona | 4,267.35 mi (6,867.64 km) |
| Howard to Son Servera | 4,442.88 mi (7,150.13 km) |
| Howard to Sonseca | 4,126.32 mi (6,640.67 km) |
| Howard to Sopelana | 4,025.10 mi (6,477.77 km) |
| Howard to Soria | 4,109.02 mi (6,612.83 km) |
| Howard to Suances | 3,978.15 mi (6,402.21 km) |
