| Didcot to Rossington | 129.42 mi (208.28 km) |
| Didcot to Rosyth | 318.68 mi (512.87 km) |
| Didcot to Rotherham | 126.12 mi (202.97 km) |
| Didcot to Rothwell | 148.36 mi (238.77 km) |
| Didcot to Rottingdean | 74.68 mi (120.19 km) |
| Didcot to Rowley Regis | 69.97 mi (112.60 km) |
| Didcot to Royal Leamington Spa | 49.05 mi (78.93 km) |
| Didcot to Royal Tunbridge Wells | 72.67 mi (116.95 km) |
| Didcot to Royal Wootton Bassett | 28.75 mi (46.26 km) |
| Didcot to Royston | 138.74 mi (223.28 km) |
| Didcot to Royston | 60.39 mi (97.18 km) |
| Didcot to Royton | 140.37 mi (225.90 km) |
| Didcot to Rugby | 52.79 mi (84.96 km) |
| Didcot to Rugeley | 85.03 mi (136.84 km) |
| Didcot to Ruislip | 34.75 mi (55.92 km) |
