Heathrow’s third runway ‘is going to be empty’ if it means high fees, says BA owner

IAG warns price paid per passenger could double under airport's plans to invest almost 50bn in expansion

• Heathrow submits shovel-ready' plans for third runway

• Why is Heathrow's third runway back on the agenda?

• What will expanding Heathrow do to UK's net zero plans?

Heathrow's third runway is going to be empty" if high charges are levied on airlines and passengers to foot the bill, the airport's biggest customer has warned.

British Airways' owner, International Airlines Group (IAG), said the price paid per passenger could double under plans revealed on Thursday by Heathrow to invest almost 50bn in expansion and upgrades, including a 21bn third runway and new terminals.