| Glenn Dale to Redondela | 3,484.79 mi (5,608.22 km) |
| Glenn Dale to Reinosa | 3,678.70 mi (5,920.30 km) |
| Glenn Dale to Requena | 3,921.52 mi (6,311.08 km) |
| Glenn Dale to Reus | 3,976.32 mi (6,399.27 km) |
| Glenn Dale to Rianxo | 3,466.40 mi (5,578.63 km) |
| Glenn Dale to Ribadeo | 3,529.30 mi (5,679.86 km) |
| Glenn Dale to Rincon de la Victoria | 3,849.74 mi (6,195.56 km) |
| Glenn Dale to Ripoll | 3,995.28 mi (6,429.78 km) |
| Glenn Dale to Ripollet | 4,014.96 mi (6,461.45 km) |
| Glenn Dale to Rojales | 3,982.48 mi (6,409.18 km) |
| Glenn Dale to Ronda | 3,805.26 mi (6,123.97 km) |
| Glenn Dale to Roquetas de Mar | 3,930.97 mi (6,326.29 km) |
| Glenn Dale to Rosas | 4,038.74 mi (6,499.72 km) |
| Glenn Dale to Rubi | 4,009.26 mi (6,452.28 km) |
| Glenn Dale to Rute | 3,827.44 mi (6,159.66 km) |
