Rishi Sunak shelled out more than £10,000 to fly by private helicopter to a glitzy Tory dinner in Wales at the weekend.
The multi-millionaire Chancellor paid out of his own pocket for a return flight from Battersea heliport to the Conservative conference in Newtown, Powys.
The revelation will heighten concerns that he is too "out of touch" with ordinary voters to understand the impact of the cost of living crisis.