| Didcot to Arcos de Valdevez | 754.25 mi (1,213.85 km) |
| Didcot to Arcozelo | 808.94 mi (1,301.86 km) |
| Didcot to Arganil | 851.37 mi (1,370.14 km) |
| Didcot to Arouca | 808.81 mi (1,301.65 km) |
| Didcot to Arruda dos Vinhos | 950.17 mi (1,529.14 km) |
| Didcot to Aveiro | 836.04 mi (1,345.47 km) |
| Didcot to Aver-o-Mar | 789.61 mi (1,270.75 km) |
| Didcot to Aves | 777.58 mi (1,251.39 km) |
| Didcot to Azambuja | 940.99 mi (1,514.37 km) |
| Didcot to Baiao | 789.77 mi (1,271.01 km) |
| Didcot to Barcelos | 779.27 mi (1,254.11 km) |
| Didcot to Barreiro | 970.64 mi (1,562.09 km) |
| Didcot to Batalha | 902.05 mi (1,451.71 km) |
| Didcot to Beja | 991.66 mi (1,595.92 km) |
| Didcot to Belas | 967.52 mi (1,557.07 km) |
