| Rhondda to Sucha Beskidzka | 1,011.29 mi (1,627.52 km) |
| Rhondda to Suchanino | 931.34 mi (1,498.84 km) |
| Rhondda to Sulechow | 810.71 mi (1,304.71 km) |
| Rhondda to Sulecin | 787.54 mi (1,267.43 km) |
| Rhondda to Sulejowek | 1,048.02 mi (1,686.62 km) |
| Rhondda to Suwalki | 1,105.79 mi (1,779.59 km) |
| Rhondda to Swarzedz | 870.11 mi (1,400.31 km) |
| Rhondda to Swidnica | 859.92 mi (1,383.91 km) |
| Rhondda to Swidnik | 1,119.75 mi (1,802.07 km) |
| Rhondda to Swidwin | 814.45 mi (1,310.74 km) |
| Rhondda to Swiebodzice | 853.28 mi (1,373.23 km) |
| Rhondda to Swiecie | 923.40 mi (1,486.07 km) |
| Rhondda to Swiedbodzin | 806.22 mi (1,297.48 km) |
| Rhondda to Swietochlowice | 972.60 mi (1,565.26 km) |
| Rhondda to Swinoujscie | 753.40 mi (1,212.49 km) |
