| Birstonas to Arcozelo | 1,757.01 mi (2,827.63 km) |
| Birstonas to Arganil | 1,775.17 mi (2,856.86 km) |
| Birstonas to Arouca | 1,747.85 mi (2,812.90 km) |
| Birstonas to Arruda dos Vinhos | 1,873.79 mi (3,015.57 km) |
| Birstonas to Aveiro | 1,777.52 mi (2,860.64 km) |
| Birstonas to Aver-o-Mar | 1,745.52 mi (2,809.14 km) |
| Birstonas to Aves | 1,725.98 mi (2,777.70 km) |
| Birstonas to Azambuja | 1,862.19 mi (2,996.90 km) |
| Birstonas to Baiao | 1,728.78 mi (2,782.20 km) |
| Birstonas to Barcelos | 1,734.44 mi (2,791.30 km) |
| Birstonas to Barreiro | 1,889.60 mi (3,041.02 km) |
| Birstonas to Batalha | 1,830.87 mi (2,946.50 km) |
| Birstonas to Beja | 1,878.16 mi (3,022.60 km) |
| Birstonas to Belas | 1,891.78 mi (3,044.53 km) |
| Birstonas to Benavente | 1,864.69 mi (3,000.93 km) |
