| Rhondda to Rury | 1,111.67 mi (1,789.05 km) |
| Rhondda to Rybnik | 960.43 mi (1,545.66 km) |
| Rhondda to Ryki | 1,081.91 mi (1,741.17 km) |
| Rhondda to Rypin | 966.33 mi (1,555.16 km) |
| Rhondda to Rzeszow | 1,109.08 mi (1,784.89 km) |
| Rhondda to Sandomierz | 1,087.29 mi (1,749.82 km) |
| Rhondda to Sanok | 1,127.71 mi (1,814.88 km) |
| Rhondda to Sedziszow Malopolski | 1,095.63 mi (1,763.25 km) |
| Rhondda to Sepolno Krajenskie | 886.20 mi (1,426.19 km) |
| Rhondda to Sidlice | 931.77 mi (1,499.54 km) |
| Rhondda to Siechnice | 886.08 mi (1,426.01 km) |
| Rhondda to Siedlce | 1,090.35 mi (1,754.75 km) |
| Rhondda to Siemianowice Slaskie | 975.79 mi (1,570.38 km) |
| Rhondda to Siemiatycze | 1,112.60 mi (1,790.55 km) |
| Rhondda to Sieradz | 947.54 mi (1,524.92 km) |
