| La Crescenta-Montrose to Sesena | 5,822.81 mi (9,370.90 km) |
| La Crescenta-Montrose to Sestao | 5,704.47 mi (9,180.46 km) |
| La Crescenta-Montrose to Sevilla | 5,856.64 mi (9,425.35 km) |
| La Crescenta-Montrose to Sevilla La Nueva | 5,798.60 mi (9,331.94 km) |
| La Crescenta-Montrose to Silla | 5,987.05 mi (9,635.22 km) |
| La Crescenta-Montrose to Silleda | 5,527.39 mi (8,895.48 km) |
| La Crescenta-Montrose to Sitges | 5,982.51 mi (9,627.93 km) |
| La Crescenta-Montrose to Socuellamos | 5,895.84 mi (9,488.43 km) |
| La Crescenta-Montrose to Soller | 6,087.13 mi (9,796.30 km) |
| La Crescenta-Montrose to Solsona | 5,935.33 mi (9,551.99 km) |
| La Crescenta-Montrose to Son Servera | 6,119.07 mi (9,847.69 km) |
| La Crescenta-Montrose to Sonseca | 5,830.94 mi (9,383.99 km) |
| La Crescenta-Montrose to Sopelana | 5,702.27 mi (9,176.91 km) |
| La Crescenta-Montrose to Soria | 5,795.47 mi (9,326.91 km) |
| La Crescenta-Montrose to Suances | 5,659.19 mi (9,107.58 km) |
