| Willoughby to Sierpc | 4,400.34 mi (7,081.66 km) |
| Willoughby to Skarzysko-Kamienna | 4,514.90 mi (7,266.03 km) |
| Willoughby to Skawina | 4,523.15 mi (7,279.31 km) |
| Willoughby to Skierniewice | 4,453.65 mi (7,167.45 km) |
| Willoughby to Skoczow | 4,492.97 mi (7,230.74 km) |
| Willoughby to Skwierzyna | 4,266.53 mi (6,866.32 km) |
| Willoughby to Slawno | 4,241.78 mi (6,826.48 km) |
| Willoughby to Slubice | 4,242.62 mi (6,827.84 km) |
| Willoughby to Slupca | 4,361.12 mi (7,018.54 km) |
| Willoughby to Slupsk | 4,249.76 mi (6,839.32 km) |
| Willoughby to Sochaczew | 4,445.76 mi (7,154.76 km) |
| Willoughby to Sokolka | 4,507.44 mi (7,254.02 km) |
| Willoughby to Sokolow Podlaski | 4,507.58 mi (7,254.25 km) |
| Willoughby to Solec Kujawski | 4,343.42 mi (6,990.06 km) |
| Willoughby to Sopot | 4,302.00 mi (6,923.40 km) |
