| Sleaford to Redondela | 831.64 mi (1,338.39 km) |
| Sleaford to Reinosa | 711.42 mi (1,144.92 km) |
| Sleaford to Requena | 934.01 mi (1,503.15 km) |
| Sleaford to Reus | 821.22 mi (1,321.62 km) |
| Sleaford to Rianxo | 812.96 mi (1,308.33 km) |
| Sleaford to Ribadeo | 720.62 mi (1,159.72 km) |
| Sleaford to Rincon de la Victoria | 1,140.23 mi (1,835.02 km) |
| Sleaford to Ripoll | 755.52 mi (1,215.89 km) |
| Sleaford to Ripollet | 803.47 mi (1,293.06 km) |
| Sleaford to Rojales | 1,030.11 mi (1,657.80 km) |
| Sleaford to Ronda | 1,146.58 mi (1,845.24 km) |
| Sleaford to Roquetas de Mar | 1,126.54 mi (1,812.99 km) |
| Sleaford to Rosas | 759.89 mi (1,222.93 km) |
| Sleaford to Rubi | 802.87 mi (1,292.09 km) |
| Sleaford to Rute | 1,099.90 mi (1,770.12 km) |
