| Billingham to Arcos de Valdevez | 940.03 mi (1,512.83 km) |
| Billingham to Arcozelo | 995.63 mi (1,602.31 km) |
| Billingham to Arganil | 1,042.56 mi (1,677.84 km) |
| Billingham to Arouca | 997.70 mi (1,605.65 km) |
| Billingham to Arruda dos Vinhos | 1,139.26 mi (1,833.46 km) |
| Billingham to Aveiro | 1,023.67 mi (1,647.43 km) |
| Billingham to Aver-o-Mar | 974.75 mi (1,568.70 km) |
| Billingham to Aves | 965.03 mi (1,553.07 km) |
| Billingham to Azambuja | 1,130.78 mi (1,819.81 km) |
| Billingham to Baiao | 979.17 mi (1,575.82 km) |
| Billingham to Barcelos | 964.90 mi (1,552.86 km) |
| Billingham to Barreiro | 1,160.30 mi (1,867.32 km) |
| Billingham to Batalha | 1,091.05 mi (1,755.88 km) |
| Billingham to Beja | 1,186.73 mi (1,909.86 km) |
| Billingham to Belas | 1,156.13 mi (1,860.61 km) |
