| Boone to Sesena | 4,103.45 mi (6,603.87 km) |
| Boone to Sestao | 4,050.47 mi (6,518.60 km) |
| Boone to Sevilla | 4,070.17 mi (6,550.30 km) |
| Boone to Sevilla La Nueva | 4,080.76 mi (6,567.35 km) |
| Boone to Silla | 4,283.67 mi (6,893.91 km) |
| Boone to Silleda | 3,818.83 mi (6,145.82 km) |
| Boone to Sitges | 4,333.33 mi (6,973.83 km) |
| Boone to Socuellamos | 4,170.09 mi (6,711.11 km) |
| Boone to Soller | 4,420.24 mi (7,113.68 km) |
| Boone to Solsona | 4,297.48 mi (6,916.12 km) |
| Boone to Son Servera | 4,456.09 mi (7,171.39 km) |
| Boone to Sonseca | 4,102.37 mi (6,602.12 km) |
| Boone to Sopelana | 4,049.86 mi (6,517.63 km) |
| Boone to Soria | 4,116.88 mi (6,625.48 km) |
| Boone to Suances | 3,998.62 mi (6,435.15 km) |
