| McKeesport to Sesena | 3,881.60 mi (6,246.83 km) |
| McKeesport to Sestao | 3,815.78 mi (6,140.91 km) |
| McKeesport to Sevilla | 3,863.05 mi (6,216.98 km) |
| McKeesport to Sevilla La Nueva | 3,858.43 mi (6,209.54 km) |
| McKeesport to Silla | 4,059.95 mi (6,533.86 km) |
| McKeesport to Silleda | 3,592.58 mi (5,781.70 km) |
| McKeesport to Sitges | 4,099.99 mi (6,598.29 km) |
| McKeesport to Socuellamos | 3,950.05 mi (6,356.99 km) |
| McKeesport to Soller | 4,190.67 mi (6,744.23 km) |
| McKeesport to Solsona | 4,061.92 mi (6,537.03 km) |
| McKeesport to Son Servera | 4,226.09 mi (6,801.23 km) |
| McKeesport to Sonseca | 3,882.42 mi (6,248.14 km) |
| McKeesport to Sopelana | 3,814.89 mi (6,139.47 km) |
| McKeesport to Soria | 3,887.17 mi (6,255.79 km) |
| McKeesport to Suances | 3,764.69 mi (6,058.68 km) |
