London's Heathrow Airport will submit its proposal for a third runway this summer, the chief executive of the hub said, weeks after the British government threw its weight behind the project citing its potential to boost trade and economic growth.

Heathrow has revealed new investment in its existing terminals ahead of the push for a third runway. Heathrow bosses are expected to confirm a multibillion-pound boost into the UK’s busiest airport – just hours after airlines criticised Heathrow for ‘failing’ passengers and operators due to declining quality.

Heathrow Airport is set to confirm a multi-billion pound investment plan to expand two of its terminals ahead of submitting proposals for a third runway to the government this summer. On Wednesday, chief executive Thomas Woldbye will unveil funding to increase capacity at terminals two and five,

London's Heathrow Airport, one of the world's busiest hubs, will submit its proposal for a third runway to the British government by summer, its chief executive Thomas Woldbye will say in a speech on Wednesday.