| Didcot to Redondela | 731.22 mi (1,176.78 km) |
| Didcot to Reinosa | 609.65 mi (981.14 km) |
| Didcot to Requena | 837.43 mi (1,347.71 km) |
| Didcot to Reus | 730.63 mi (1,175.84 km) |
| Didcot to Rianxo | 713.08 mi (1,147.59 km) |
| Didcot to Ribadeo | 619.34 mi (996.73 km) |
| Didcot to Rincon de la Victoria | 1,039.51 mi (1,672.92 km) |
| Didcot to Ripoll | 669.50 mi (1,077.46 km) |
| Didcot to Ripollet | 716.69 mi (1,153.39 km) |
| Didcot to Rojales | 934.30 mi (1,503.61 km) |
| Didcot to Ronda | 1,045.18 mi (1,682.06 km) |
| Didcot to Roquetas de Mar | 1,027.68 mi (1,653.89 km) |
| Didcot to Rosas | 677.98 mi (1,091.11 km) |
| Didcot to Rubi | 715.63 mi (1,151.70 km) |
| Didcot to Rute | 999.01 mi (1,607.76 km) |
