| Harlow to Redondela | 773.40 mi (1,244.66 km) |
| Harlow to Reinosa | 638.14 mi (1,026.98 km) |
| Harlow to Requena | 851.40 mi (1,370.19 km) |
| Harlow to Reus | 735.52 mi (1,183.70 km) |
| Harlow to Rianxo | 756.44 mi (1,217.37 km) |
| Harlow to Ribadeo | 659.46 mi (1,061.30 km) |
| Harlow to Rincon de la Victoria | 1,062.86 mi (1,710.50 km) |
| Harlow to Ripoll | 668.79 mi (1,076.32 km) |
| Harlow to Ripollet | 716.84 mi (1,153.65 km) |
| Harlow to Rojales | 946.81 mi (1,523.75 km) |
| Harlow to Ronda | 1,071.06 mi (1,723.70 km) |
| Harlow to Roquetas de Mar | 1,046.06 mi (1,683.48 km) |
| Harlow to Rosas | 672.79 mi (1,082.76 km) |
| Harlow to Rubi | 716.33 mi (1,152.82 km) |
| Harlow to Rute | 1,022.96 mi (1,646.29 km) |
