| Seia to Runcorn | 922.43 mi (1,484.51 km) |
| Seia to Rushall | 884.66 mi (1,423.73 km) |
| Seia to Rushden | 886.01 mi (1,425.89 km) |
| Seia to Rustington | 796.68 mi (1,282.14 km) |
| Seia to Rutherglen | 1,076.19 mi (1,731.97 km) |
| Seia to Ryde | 778.37 mi (1,252.66 km) |
| Seia to Rye | 832.29 mi (1,339.44 km) |
| Seia to Ryhope | 1,039.69 mi (1,673.22 km) |
| Seia to Saffron Walden | 885.67 mi (1,425.34 km) |
| Seia to Saint Albans | 857.87 mi (1,380.60 km) |
| Seia to Saint Andrews | 1,121.96 mi (1,805.62 km) |
| Seia to Saint Austell | 699.54 mi (1,125.81 km) |
| Seia to Saint Budeaux | 710.21 mi (1,142.97 km) |
| Seia to Saint Helens | 929.40 mi (1,495.73 km) |
| Seia to Saint Ives | 898.57 mi (1,446.11 km) |
