| Euclid to Sesena | 3,921.06 mi (6,310.34 km) |
| Euclid to Sestao | 3,847.60 mi (6,192.12 km) |
| Euclid to Sevilla | 3,910.63 mi (6,293.54 km) |
| Euclid to Sevilla La Nueva | 3,897.65 mi (6,272.66 km) |
| Euclid to Silla | 4,098.04 mi (6,595.15 km) |
| Euclid to Silleda | 3,629.98 mi (5,841.89 km) |
| Euclid to Sitges | 4,132.19 mi (6,650.12 km) |
| Euclid to Socuellamos | 3,990.43 mi (6,421.98 km) |
| Euclid to Soller | 4,225.06 mi (6,799.58 km) |
| Euclid to Solsona | 4,092.78 mi (6,586.69 km) |
| Euclid to Son Servera | 4,260.16 mi (6,856.07 km) |
| Euclid to Sonseca | 3,922.96 mi (6,313.40 km) |
| Euclid to Sopelana | 3,846.53 mi (6,190.40 km) |
| Euclid to Soria | 3,921.96 mi (6,311.79 km) |
| Euclid to Suances | 3,797.07 mi (6,110.80 km) |
