Ministers have backed a plan for a third runway at Heathrow to be in operation by 2035 as they opted for the longer, costlier runway drawn up by the airport’s owners as the basis for its expansion.
The £33bn scheme for a 2.2-mile (3.5km) north-western runway crossing the M25 motorway was picked in preference as the “most credible and deliverable option”, ahead of a rival plan submitted by the Arora Group.
