| Southborough to Sycow | 753.56 mi (1,212.74 km) |
| Southborough to Szamotuly | 701.53 mi (1,129.00 km) |
| Southborough to Szczecin | 622.45 mi (1,001.74 km) |
| Southborough to Szczecinek | 711.96 mi (1,145.80 km) |
| Southborough to Szczytno | 886.49 mi (1,426.67 km) |
| Southborough to Szprotawa | 658.08 mi (1,059.07 km) |
| Southborough to Sztum | 808.83 mi (1,301.69 km) |
| Southborough to Szubin | 751.35 mi (1,209.18 km) |
| Southborough to Szydlowiec | 888.36 mi (1,429.68 km) |
| Southborough to Tarnobrzeg | 931.42 mi (1,498.97 km) |
| Southborough to Tarnow | 909.51 mi (1,463.72 km) |
| Southborough to Tarnowskie Gory | 811.24 mi (1,305.56 km) |
| Southborough to Tczew | 800.60 mi (1,288.44 km) |
| Southborough to Tomaszow Lubelski | 1,007.90 mi (1,622.06 km) |
| Southborough to Tomaszow Mazowiecki | 850.32 mi (1,368.46 km) |
