| South Portland to Alesd | 4,227.39 mi (6,803.33 km) |
| South Portland to Alexandria | 4,467.48 mi (7,189.72 km) |
| South Portland to Arad | 4,219.25 mi (6,790.22 km) |
| South Portland to Avrig | 4,358.15 mi (7,013.76 km) |
| South Portland to Babadag | 4,560.92 mi (7,340.10 km) |
| South Portland to Bacau | 4,420.06 mi (7,113.41 km) |
| South Portland to Baia Mare | 4,249.23 mi (6,838.47 km) |
| South Portland to Baia-Sprie | 4,254.14 mi (6,846.38 km) |
| South Portland to Baicoi | 4,443.56 mi (7,151.22 km) |
| South Portland to Bailesti | 4,385.94 mi (7,058.49 km) |
| South Portland to Bals | 4,402.72 mi (7,085.49 km) |
| South Portland to Baraolt | 4,390.70 mi (7,066.14 km) |
| South Portland to Barlad | 4,463.84 mi (7,183.86 km) |
| South Portland to Beclean | 4,291.36 mi (6,906.28 km) |
| South Portland to Beius | 4,241.49 mi (6,826.02 km) |
