From Streatham Hill train to Victoria Underground Station, Tube to London St Pancras International, train to Luton Airport Parkway Rail Station, then line 888 bus to Airport Bus Station. 1hrs 06min £22. From StreathamSt.Leonard's Church line 159 bus to Mayfair, Marble Arch (W1) then bus to Airport Bus Station. 2hrs 23min £9. From Streatham taxi to London Luton. 54min £168. From Streatham drive to London Luton. 54min £8. From Streatham Uber to London Luton. 54min £62.