| Iernut to Sierpc | 488.69 mi (786.47 km) |
| Iernut to Skarzysko-Kamienna | 355.72 mi (572.48 km) |
| Iernut to Skawina | 316.91 mi (510.02 km) |
| Iernut to Skierniewice | 423.00 mi (680.75 km) |
| Iernut to Skoczow | 341.21 mi (549.13 km) |
| Iernut to Skwierzyna | 576.91 mi (928.45 km) |
| Iernut to Slawno | 638.77 mi (1,028.01 km) |
| Iernut to Slubice | 594.79 mi (957.22 km) |
| Iernut to Slupca | 494.76 mi (796.24 km) |
| Iernut to Slupsk | 637.11 mi (1,025.33 km) |
| Iernut to Sochaczew | 437.89 mi (704.72 km) |
| Iernut to Sokolka | 481.05 mi (774.17 km) |
| Iernut to Sokolow Podlaski | 420.37 mi (676.52 km) |
| Iernut to Solec Kujawski | 530.16 mi (853.20 km) |
| Iernut to Sopot | 605.66 mi (974.72 km) |
