Speaking to ITV News, the Health Secretary said pressure could be taken off A&E departments by ensuring patients know there are other places to turn. Jeremy Hunt said A&E had become "the place of last resort".
The worst performing practice nationally is in West Yorkshire, where on average half of patients are unable to get a GP appointment in 24 hours, research found.
The Informatics Department at Queen Elizabeth Hospital showed that 38% of the practice's patients chose to go to A&E at the local hospital instead.
The best performing practice is in Barnsley where all patients got a GP appointment within 24 hours and only 2% of the practice’s patients chose to go to A&E at their local hospital.