| Seia to Stannington | 941.61 mi (1,515.37 km) |
| Seia to Stansted Mountfitchet | 877.22 mi (1,411.75 km) |
| Seia to Stanwell | 836.89 mi (1,346.84 km) |
| Seia to Stapleford | 915.40 mi (1,473.20 km) |
| Seia to Staveley | 936.16 mi (1,506.61 km) |
| Seia to Stepney | 848.98 mi (1,366.30 km) |
| Seia to Stevenage | 869.50 mi (1,399.32 km) |
| Seia to Stevenston | 1,060.32 mi (1,706.43 km) |
| Seia to Stirling | 1,097.72 mi (1,766.61 km) |
| Seia to Stockport | 934.04 mi (1,503.20 km) |
| Seia to Stocksbridge | 946.19 mi (1,522.75 km) |
| Seia to Stockton-on-Tees | 1,020.89 mi (1,642.97 km) |
| Seia to Stoke Gifford | 805.05 mi (1,295.60 km) |
| Seia to Stoke-on-Trent | 906.86 mi (1,459.45 km) |
| Seia to Stone | 900.77 mi (1,449.65 km) |
