| Didcot to Irun | 571.85 mi (920.30 km) |
| Didcot to Isla-Cristina | 1,038.77 mi (1,671.74 km) |
| Didcot to Jaca | 626.55 mi (1,008.33 km) |
| Didcot to Jaen | 964.09 mi (1,551.56 km) |
| Didcot to Jerez de la Frontera | 1,058.75 mi (1,703.90 km) |
| Didcot to Jerez de los Caballeros | 956.24 mi (1,538.92 km) |
| Didcot to Jodar | 957.11 mi (1,540.32 km) |
| Didcot to Jumilla | 906.98 mi (1,459.65 km) |
| Didcot to La Algaba | 1,005.23 mi (1,617.76 km) |
| Didcot to La Baneza | 679.32 mi (1,093.27 km) |
| Didcot to La Carlota | 979.74 mi (1,576.74 km) |
| Didcot to La Carolina | 928.82 mi (1,494.79 km) |
| Didcot to La Corredoria | 606.59 mi (976.22 km) |
| Didcot to La Eliana | 832.58 mi (1,339.91 km) |
| Didcot to La Escala | 687.35 mi (1,106.19 km) |
