- A308 between A404 and Pinkneys Drive, Maidenhead, Windsor and Maidenhead (Grid ref SU854835)
- A308 between Pinkneys Drive and A4, Windsor and Maidenhead (Grid ref SU870825)
- A308 between A4 and Grenfell Rd/King St, Windsor and Maidenhead (Grid ref SU886810)
- A308 between M4 and A308, Windsor and Maidenhead (Grid ref SU890790)
- A308 between Grenfell Rd and A308(M), Windsor and Maidenhead (Grid ref SU890800)
- A308 between A330 roundabout and Fifield Lane, Windsor and Maidenhead (Grid ref SU900787)
- A308 between Fifield Rd and B3383, Windsor and Maidenhead (Grid ref SU920774)
- A308 between B3383 and Ruddlesway, Windsor, Windsor and Maidenhead (Grid ref SU932769)
- A308 between Ruddlesway and A332, Windsor and Maidenhead (Grid ref SU950771)
- A308 between B3024/B3175 and Osborne Rd/Alma Rd, Windsor and Maidenhead (Grid ref SU960763)
- A308 between A308 Goslar Way and B3022 North, Windsor and Maidenhead (Grid ref SU962759)
- A308 between A308 Goslar Way and B3022 North, Windsor and Maidenhead (Grid ref SU963760)
- A308 between B3022 and A332 roundabout, Windsor and Maidenhead (Grid ref SU967759)
- A308 between A332 roundabout and B3021 Datchet Rd roundabout, Windsor and Maidenhead (Grid ref SU980750)
- A308 between B3021 Datchet Rd roundabout and A328, Windsor and Maidenhead (Grid ref SU990739)
- A308 between A328 and A30, Surrey (Grid ref TQ000727)
- A308 between A30 and B3376, Surrey (Grid ref TQ030715)
- A308 between B3376 and B376, Surrey (Grid ref TQ031714)
- A308 between B376/A308 South st and A308 High St, Surrey (Grid ref TQ035714)
- A308 between B376 and South St, Surrey (Grid ref TQ035716)
- A308 between B376 and High St, Surrey (Grid ref TQ037714)
- A308 between South St and A30, Surrey (Grid ref TQ040718)
- A308 between A30 and A244, Surrey (Grid ref TQ050715)
- A308 between A244 and M3, Surrey (Grid ref TQ095702)
- A308 between M3 and Surrey boundary, Surrey (Grid ref TQ104700)
- A308 between M3 Jct 1 and Lower Sunbury rd, Richmond upon Thames (Grid ref TQ130695)
- A308 between Lower Sunbury Rd and A3008, Richmond upon Thames (Grid ref TQ137694)
- A308 between A3008 and A311, Richmond upon Thames (Grid ref TQ140694)
- A308 between A311 and A309, Richmond upon Thames (Grid ref TQ150690)
- A308 between A309 and A310, Richmond upon Thames (Grid ref TQ160688)
- A308 between A310 and Richmond upon Thames boundary, Richmond upon Thames (Grid ref TQ177693)
- A308 between Horse Fair and Kingsgate Rd, Kingston upon Thames (Grid ref TQ180695)
- A308 between Wood St and Kingsgate Road Jct, Kingston upon Thames (Grid ref TQ180696)
- A308 between A307 Richmond Rd and Kingsgate Rd, Kingston upon Thames (Grid ref TQ182695)
- A308 between A307 and A307, Kingston upon Thames (Grid ref TQ182696)
- A308 between A307 and A308 Cromwell Rd/Eden St, Kingston upon Thames (Grid ref TQ182695)
- A308 between Fairfield North and Cromwell Rd, Kingston upon Thames (Grid ref TQ182694)
- A308 between Wheatfield Way and A307, Kingston upon Thames (Grid ref TQ184693)
- A308 between A307 Richmond Rd/Eden St and A307 Fairfield North/London Rd, Kingston upon Thames (Grid ref TQ185695)
- A308 between A307 and A2043, Kingston upon Thames (Grid ref TQ187693)
- A308 between A2043 and A238, Kingston upon Thames (Grid ref TQ189694)
- A308 between A238 and A3, Kingston upon Thames (Grid ref TQ200708)
- A308 between A219 and A217, Hammersmith and Fulham (Grid ref TQ250763)
- A308 between A217 and Hammersmith and Fulham boundary, Hammersmith and Fulham (Grid ref TQ259771)
- A308 between A3220 Gunter Grove and A3220 Edith Grove, Kensington and Chelsea (Grid ref TQ261776)
- A308 between Kensington and Chelsea boundary and A3220, Kensington and Chelsea (Grid ref TQ261773)
- A308 between A3220 and A4, Kensington and Chelsea (Grid ref TQ270785)