The chief executive of Gatwick Airport insisted last night that Heathrow expansion was not the solution for Scotland.
Stewart Wingate said travellers would face higher fares to help cover the scheme and a share of the £6billion public transport costs.
He added: “In contrast, Gatwick expansion would not cost taxpayers a penny. It would also promote a strong system of UK airports and encourage more direct international flights to and from Scotland.
“The Airports Commission itself concluded that several UK cities would lose connections if Heathrow expands and some of these are likely to be in Scotland.
“Gatwick faces few of the hurdles of Heathrow and if given the green light, can be operational in just 10 years.”
A Heathrow spokesman said there was now a “real opportunity” to help deliver the UK Government’s long-term economic plan by listening to Scottish businesses.
He added: “The prime minister showed leadership in establishing an independent Airports Commission.
“It unanimously concluded that expanding Heathrow is the best way of securing our future as a powerhouse in the global economy.
“This debate has never been about a runway – it is about the future of our country. Let’s build it.”
The commission’s support for expansion at Heathrow rather than Gatwick has proved controversial.
Concerns have been raised that a third runway in west London would cause problems with air pollution and aircraft noise.