| Didcot to Alenquer | 944.90 mi (1,520.67 km) |
| Didcot to Alfena | 795.00 mi (1,279.43 km) |
| Didcot to Alijo | 772.29 mi (1,242.88 km) |
| Didcot to Aljustrel | 1,003.90 mi (1,615.62 km) |
| Didcot to Almada | 971.49 mi (1,563.46 km) |
| Didcot to Almargem | 962.87 mi (1,549.58 km) |
| Didcot to Almeirim | 927.70 mi (1,492.99 km) |
| Didcot to Amadora | 969.50 mi (1,560.26 km) |
| Didcot to Amarante | 784.00 mi (1,261.73 km) |
| Didcot to Amares | 767.04 mi (1,234.43 km) |
| Didcot to Amora | 974.23 mi (1,567.86 km) |
| Didcot to Anadia | 844.58 mi (1,359.23 km) |
| Didcot to Angra do Heroismo | 1,536.96 mi (2,473.49 km) |
| Didcot to Ansiao | 877.88 mi (1,412.81 km) |
| Didcot to Anta | 811.70 mi (1,306.31 km) |
