| London Colney to Sinop | 1,781.84 mi (2,867.60 km) |
| London Colney to Siran | 2,024.04 mi (3,257.38 km) |
| London Colney to Sirnak | 2,278.83 mi (3,667.42 km) |
| London Colney to Sirvan | 2,236.86 mi (3,599.88 km) |
| London Colney to Sivas | 1,953.09 mi (3,143.19 km) |
| London Colney to Sivasli | 1,706.51 mi (2,746.37 km) |
| London Colney to Siverek | 2,136.18 mi (3,437.84 km) |
| London Colney to Sivrice | 2,105.47 mi (3,388.43 km) |
| London Colney to Sivrihisar | 1,737.95 mi (2,796.96 km) |
| London Colney to Sogut | 1,657.37 mi (2,667.28 km) |
| London Colney to Sogutlu | 1,631.83 mi (2,626.18 km) |
| London Colney to Soke | 1,651.57 mi (2,657.95 km) |
| London Colney to Solhan | 2,156.79 mi (3,471.01 km) |
| London Colney to Soma | 1,591.07 mi (2,560.58 km) |
| London Colney to Sorgun | 1,873.66 mi (3,015.36 km) |
