| Luton to Sunbury | 31.46 mi (50.63 km) |
| Luton to Sunderland | 212.94 mi (342.70 km) |
| Luton to Sunninghill | 34.45 mi (55.44 km) |
| Luton to Surbiton | 33.78 mi (54.36 km) |
| Luton to Sutton | 36.64 mi (58.97 km) |
| Luton to Sutton Coldfield | 76.07 mi (122.42 km) |
| Luton to Sutton in Ashfield | 93.20 mi (149.99 km) |
| Luton to Sutton on Hull | 131.52 mi (211.66 km) |
| Luton to Swadlincote | 78.46 mi (126.27 km) |
| Luton to Swallownest | 109.41 mi (176.08 km) |
| Luton to Swanage | 110.32 mi (177.54 km) |
| Luton to Swindon | 62.44 mi (100.49 km) |
| Luton to Swinton | 117.42 mi (188.96 km) |
| Luton to Swinton | 138.74 mi (223.28 km) |
| Luton to Syston | 63.35 mi (101.96 km) |
