| Didcot to Racale | 1,224.09 mi (1,969.98 km) |
| Didcot to Racconigi | 625.43 mi (1,006.53 km) |
| Didcot to Raffadali | 1,216.87 mi (1,958.37 km) |
| Didcot to Ragusa | 1,279.94 mi (2,059.86 km) |
| Didcot to Ramacca | 1,252.43 mi (2,015.60 km) |
| Didcot to Randazzo | 1,231.36 mi (1,981.69 km) |
| Didcot to Rapallo | 695.85 mi (1,119.86 km) |
| Didcot to Ravanusa | 1,237.52 mi (1,991.60 km) |
| Didcot to Ravenna | 793.41 mi (1,276.87 km) |
| Didcot to Recanati | 890.47 mi (1,433.07 km) |
| Didcot to Recco | 692.32 mi (1,114.17 km) |
| Didcot to Reggello | 806.14 mi (1,297.35 km) |
| Didcot to Reggio di Calabria | 1,240.25 mi (1,995.99 km) |
| Didcot to Reggio Emilia | 724.54 mi (1,166.03 km) |
| Didcot to Reggiolo | 720.37 mi (1,159.32 km) |
