| Houston to Reichenbach/Vogtland | 5,353.93 mi (8,616.32 km) |
| Houston to Reinbek | 5,176.11 mi (8,330.15 km) |
| Houston to Reinfeld | 5,173.20 mi (8,325.46 km) |
| Houston to Reinheim | 5,250.56 mi (8,449.96 km) |
| Houston to Reiskirchen | 5,224.12 mi (8,407.40 km) |
| Houston to Rellingen | 5,155.91 mi (8,297.63 km) |
| Houston to Remagen | 5,163.44 mi (8,309.76 km) |
| Houston to Remscheid | 5,142.32 mi (8,275.76 km) |
| Houston to Rendsburg | 5,128.44 mi (8,253.43 km) |
| Houston to Renningen | 5,291.29 mi (8,515.51 km) |
| Houston to Reutlingen | 5,312.27 mi (8,549.27 km) |
| Houston to Rhaude | 5,090.37 mi (8,192.16 km) |
| Houston to Rheda-Wiedenbruck | 5,161.91 mi (8,307.30 km) |
| Houston to Rhede | 5,102.18 mi (8,211.16 km) |
| Houston to Rheinau | 5,255.13 mi (8,457.32 km) |
