| Mountain Ash to Stonehaven | 368.00 mi (592.24 km) |
| Mountain Ash to Stourbridge | 74.90 mi (120.54 km) |
| Mountain Ash to Stowmarket | 189.80 mi (305.45 km) |
| Mountain Ash to Stranraer | 232.68 mi (374.46 km) |
| Mountain Ash to Stratford | 145.18 mi (233.65 km) |
| Mountain Ash to Stratford-upon-Avon | 79.53 mi (128.00 km) |
| Mountain Ash to Stratton Saint Margaret | 69.67 mi (112.12 km) |
| Mountain Ash to Streatham | 140.95 mi (226.83 km) |
| Mountain Ash to Street | 47.43 mi (76.33 km) |
| Mountain Ash to Streetly | 88.60 mi (142.59 km) |
| Mountain Ash to Stretford | 129.98 mi (209.19 km) |
| Mountain Ash to Strood | 166.94 mi (268.67 km) |
| Mountain Ash to Stroud | 50.03 mi (80.51 km) |
| Mountain Ash to Sudbury | 131.53 mi (211.68 km) |
| Mountain Ash to Sudbury | 177.00 mi (284.85 km) |
