Green Line (operated by Arriva) operates a bus from Hemel Hempstead to Covent Garden once daily. Tickets cost $11 and the journey takes 1 h 28 min.
How to get from Hemel Hempstead to Covent Garden
From Hemel Hempstead train to Euston Underground Station then Tube to Leicester Square Underground Station. 39 min £11. From Adeyfield, School bus to Temple, Aldwych Somerset House. 1 h 28 min £7. From Hemel Hempstead taxi to Covent Garden. 35 min £114. From Hemel Hempstead drive to Covent Garden. 35 min £5. From Hemel Hempstead rideshare to London. 52 min £4.