From Notting Hill Gate Underground Station Tube to London Paddington then train to Slough. 40 min £11. From High Street Kensington line 702 bus to Slough Bus Station. 50 min £5. From Holland Park Underground Station Tube to Ealing Broadway then train to Slough. 51 min £8. From Notting Hill taxi to Slough. 27 min £85. From Notting Hill drive to Slough. 27 min £3.
Bus from Notting Hill to Slough
Green Line (operated by First in Berkshire) operates a bus from Notting Hill to Slough hourly. Tickets cost $8 and the journey takes 50 min.