Great Northern operates a train from Cambridge to Euston Station hourly. Tickets cost $24 - $35 and the journey takes 48 min.
How to get from Cambridge to Euston Station
From Cambridge train to London Kings Cross then walk to Euston Station. 1 h 1 min £21. From Cambridge train to Tottenham Hale Underground Station then Tube to Euston Underground Station. 1 h 8 min £23. From Cambridge drive to Euston Station. 1 h 13 min £11.