| South Portland to Sycow | 3,892.70 mi (6,264.69 km) |
| South Portland to Szamotuly | 3,807.08 mi (6,126.91 km) |
| South Portland to Szczecin | 3,705.53 mi (5,963.47 km) |
| South Portland to Szczecinek | 3,774.64 mi (6,074.70 km) |
| South Portland to Szczytno | 3,933.78 mi (6,330.81 km) |
| South Portland to Szprotawa | 3,801.56 mi (6,118.02 km) |
| South Portland to Sztum | 3,852.40 mi (6,199.84 km) |
| South Portland to Szubin | 3,836.22 mi (6,173.80 km) |
| South Portland to Szydlowiec | 4,011.75 mi (6,456.28 km) |
| South Portland to Tarnobrzeg | 4,066.30 mi (6,544.08 km) |
| South Portland to Tarnow | 4,061.42 mi (6,536.22 km) |
| South Portland to Tarnowskie Gory | 3,965.54 mi (6,381.92 km) |
| South Portland to Tczew | 3,838.47 mi (6,177.42 km) |
| South Portland to Tomaszow Lubelski | 4,135.28 mi (6,655.09 km) |
| South Portland to Tomaszow Mazowiecki | 3,970.86 mi (6,390.48 km) |
