| GB-0930 | Shear Down Farm Airstrip | — | Small airport |
| GB-1060 | Sheardale airstrip | — | Small airport |
| GB-1219 | Sheffield City Airport | Sheffield, South Yorkshire | Closed |
| GB-0638 | Shelsley Beauchamp Airstrip | Worcester, Worcestershire | Small airport |
| GB-0746 | Shempston Farm Airstrip | — | Small airport |
| GB-0416 | Shenington Gliding Club | Shenington | Small airport |
| GB-0023 | Shenstone Hall Farm Airstrip | Lichfield, Staffordshire | Small airport |
| EGCJ | Sherburn-in-Elmet Airfield | Selby, North Yorkshire | Small airport |
| GB-0372 | Shifnal Airfield | Shifnal, Shropshire | Small airport |
| EGSA | Shipdham Airfield | Thetford, Norfolk | Small airport |
| EGBS | Shobdon Airfield | Leominster, Herefordshire | Small airport |
| GB-0419 | Shotteswell/Banbury Airfield | Banbury, Oxfordshire | Small airport |
| GB-0787 | Shrove Furlong Farm Airstrip | Aylesbury, Buckinghamshire | Small airport |
| GB-1082 | Sibsey Airstrip | Boston, Lincolnshire | Closed |
| GB-0902 | Siege Cross Farm Airstrip | Thatcham, Berkshire | Small airport |
| GB-0154 | Silloth Airfiefd | Wigton, Cumbria | Closed |
| EGBV | Silverstone Heliport | Silverstone, Buckinghamshire | Heliport |
| GB-0199 | Sittles Farm Airfield | Lichfield, Staffordshire | Small airport |
| EGNI | Skegness (Ingoldmells) Aerodrome | Skegness, Lincolnshire | Small airport |
| GB-0340 | Skelling Farm Glider Field | Skirwith, Penrith | Small airport |
| GB-0409 | Skydive Strathallan | Auchterarder, Perth and Kinross | Small airport |
| GB-0417 | Slay Barn Private Airstrip | Oxford, Oxfordshire | Small airport |
| EGCV | Sleap Airfield | Shrewsbury, Shropshire | Small airport |
| GB-0879 | Slemish Airfield | Buckna (Co Antrim) | Small airport |
| GB-0448 | Slieve Croob Airfield | — | Small airport |
| EGHF | Solent Airport | Gosport, Hampshire | Small airport |
| GB-1078 | South Barnbeth Farm Airstrip | — | Small airport |
| GB-0273 | South Cave / Mount Airy Airfield | Brough, East Riding of Yorkshire | Small airport |
| GB-0851 | South Cerney Airfield | South Cerney (Glos) | Small airport |
| GB-1199 | South Hykeham Airfield | South Hykeham, Lincolnshire | Small airport |
| GB-0811 | South Longwood Farm Airstrip | Winchester, Hampshire | Small airport |
| GB-0565 | South Moor Farm Airstrip | Dalby Forest | Closed |
| GB-1017 | South View Farm Airstrip | Sleaford, Lincolnshire | Small airport |
| GB-0392 | South Wales Gliding Club | Usk, Monmouthshire | Small airport |
| GB-0954 | South Weald Private Airstrip | Brentwood, Essex | Small airport |
| GB-0852 | South Wraxall private Airstrip | South Wraxall (Wiltshire) | Small airport |
| GB-0351 | Southampton University Hospital Helipad | Southampton | Heliport |
| GB-0408 | Southdown Gliding Club | Pulborough, West Sussex | Small airport |
| GB-0634 | Southery Airstrip | — | Small airport |
| GB-0010 | Spanhoe Airfield | Corby, Northamptonshire | Small airport |
| GB-0624 | Sparr Farm Airstrip | Billingshurst, West Sussex | Small airport |
| GB-1098 | Speke Airport | Liverpool | Closed |
| GB-0220 | Spence Airfield | Coleford, Gloucestershire | Small airport |
| GB-0457 | Spilstead Farm Airfield | Battle, East Sussex | Small airport |
| GB-1015 | Spire-View Airstrip | Coombe Bissett | Small airport |
| GB-0899 | Spite Hall Farm Airstrip | Pinchinthorpe | Small airport |
| GB-0358 | Springfield Farm Airstrip | Ettington | Closed |
| GB-0178 | Sproston Green Airfield | Middlewich, Cheshire East. | Closed |
| GB-0352 | St Mary's Hospital Helipad | Newport (IoW) | Heliport |
| GB-0488 | St Mellion Airstrip | Bealbury, Cornwall | Small airport |
