| Staines-upon-Thames to Arcos de Valdevez | 760.21 mi (1,223.43 km) |
| Staines-upon-Thames to Arcozelo | 814.35 mi (1,310.58 km) |
| Staines-upon-Thames to Arganil | 854.74 mi (1,375.57 km) |
| Staines-upon-Thames to Arouca | 813.31 mi (1,308.89 km) |
| Staines-upon-Thames to Arruda dos Vinhos | 954.24 mi (1,535.70 km) |
| Staines-upon-Thames to Aveiro | 840.99 mi (1,353.45 km) |
| Staines-upon-Thames to Aver-o-Mar | 795.70 mi (1,280.55 km) |
| Staines-upon-Thames to Aves | 782.78 mi (1,259.77 km) |
| Staines-upon-Thames to Azambuja | 944.78 mi (1,520.47 km) |
| Staines-upon-Thames to Baiao | 794.11 mi (1,277.99 km) |
| Staines-upon-Thames to Barcelos | 785.20 mi (1,263.66 km) |
| Staines-upon-Thames to Barreiro | 974.43 mi (1,568.19 km) |
| Staines-upon-Thames to Batalha | 906.27 mi (1,458.50 km) |
| Staines-upon-Thames to Beja | 992.86 mi (1,597.86 km) |
| Staines-upon-Thames to Belas | 971.76 mi (1,563.90 km) |
