| South Portland to Brzesko | 4,049.11 mi (6,516.41 km) |
| South Portland to Brzeszcze | 3,992.40 mi (6,425.15 km) |
| South Portland to Brzeziny | 3,951.04 mi (6,358.58 km) |
| South Portland to Brzozow | 4,111.63 mi (6,617.04 km) |
| South Portland to Bukowno | 3,994.67 mi (6,428.80 km) |
| South Portland to Busko-Zdroj | 4,034.59 mi (6,493.05 km) |
| South Portland to Bydgoszcz | 3,841.85 mi (6,182.86 km) |
| South Portland to Bystrzyca Klodzka | 3,886.46 mi (6,254.65 km) |
| South Portland to Bytom | 3,971.11 mi (6,390.88 km) |
| South Portland to Bytow | 3,790.68 mi (6,100.52 km) |
| South Portland to Chelm | 4,111.70 mi (6,617.14 km) |
| South Portland to Chelmek | 3,992.02 mi (6,424.54 km) |
| South Portland to Chelmno | 3,849.60 mi (6,195.34 km) |
| South Portland to Chelmza | 3,861.65 mi (6,214.73 km) |
| South Portland to Chodziez | 3,806.23 mi (6,125.54 km) |
