| Rhondda to Saarijarvi | 1,301.95 mi (2,095.28 km) |
| Rhondda to Salo | 1,179.13 mi (1,897.63 km) |
| Rhondda to Sastamala | 1,195.55 mi (1,924.06 km) |
| Rhondda to Savonlinna | 1,393.07 mi (2,241.92 km) |
| Rhondda to Seinajoki | 1,234.91 mi (1,987.40 km) |
| Rhondda to Siilinjarvi | 1,381.66 mi (2,223.57 km) |
| Rhondda to Sipoo | 1,248.84 mi (2,009.81 km) |
| Rhondda to Sippola | 1,312.09 mi (2,111.61 km) |
| Rhondda to Sodankyla | 1,487.14 mi (2,393.33 km) |
| Rhondda to Somero | 1,197.31 mi (1,926.89 km) |
| Rhondda to Sotkamo | 1,428.88 mi (2,299.57 km) |
| Rhondda to Tampere | 1,225.70 mi (1,972.58 km) |
| Rhondda to Tornio | 1,372.99 mi (2,209.61 km) |
| Rhondda to Turku | 1,153.06 mi (1,855.67 km) |
| Rhondda to Tuusula | 1,242.67 mi (1,999.88 km) |
