| Guyancourt to Ramnicu Sarat | 1,193.15 mi (1,920.19 km) |
| Guyancourt to Ramnicu Valcea | 1,077.94 mi (1,734.77 km) |
| Guyancourt to Rasnov | 1,115.30 mi (1,794.91 km) |
| Guyancourt to Reghin | 1,056.05 mi (1,699.55 km) |
| Guyancourt to Resita | 960.38 mi (1,545.58 km) |
| Guyancourt to Roman | 1,154.28 mi (1,857.63 km) |
| Guyancourt to Rosiori de Vede | 1,132.85 mi (1,823.15 km) |
| Guyancourt to Rovinari | 1,027.98 mi (1,654.38 km) |
| Guyancourt to Roznov | 1,137.01 mi (1,829.84 km) |
| Guyancourt to Sabaoani | 1,149.06 mi (1,849.23 km) |
| Guyancourt to Sacele | 1,126.03 mi (1,812.17 km) |
| Guyancourt to Sacueni | 926.82 mi (1,491.57 km) |
| Guyancourt to Salcea | 1,116.59 mi (1,796.98 km) |
| Guyancourt to Salonta | 916.34 mi (1,474.71 km) |
| Guyancourt to Sangeorgiu de Mures | 1,049.40 mi (1,688.85 km) |
