He was met by chairman Sir John Elvidge and CEO Gordon Dewar, who took him on a tour of the airport's new air-side construction site, which will see work carried out as part of a four-phase project to increase its capacity.
Work is set to start this week on an extensive redevelopment of the airport’s immigration and baggage reclaim facilities in a move which will triple capacity for bigger long-haul aircraft.
Edinburgh Airport says that, with long-haul traffic up almost 90 per cent in 2014 - thanks to new routes with Qatar Airways, United Airlines and US Airways, and increased services from Turkish Airlines - it's embarking on an ambitious development plan, which will see a second immigration hall and baggage reclaim area created and extensive construction of new aircraft stands and air bridges.
In 2013, the Board of Edinburgh Airport committed to investing £150 million over five years to allow the airport to compete more energetically on the international stage and to make sure its facilities reflect the predicted growth in passenger numbers.
It says this new £50 million air-side expansion is the second major project in an ambitious plan and follows the completion of the terminal extension late last year.
The first phase of the air-side programme is due for delivery this summer, ahead of the arrival of Etihad Airways on June 8 when it launches the first link between Scotland and Abu Dhabi.
This will see the creation of a 2000m2 rapid-build structure to house a new state-of-the-art immigration hall, around which a bigger structure will be built over the next five years.
It's mooted that more than 50 jobs are to be created and preparation work is already underway on the site.
Dewar said: “As we announce the next part of our five-year investment programme, it was a pleasure to welcome the prime minister to Edinburgh Airport today so he can see the extensive changes we’ve already made and those we are about to start.
“We’re committed to providing our passengers with choice and giving them the best experience. The work we’ll be carrying out over the next four years will transform our airside facilities, tripling our capacity to handle bigger aircraft and paving the way for the next 10 years of increased international
“We’ll effectively be creating a new international facility for our airlines, and underpinning our future aspirations to increase passenger numbers and enhance their experience and be one of the leading European airports for our size.
“We’ve grown significantly over the last several years and have worked hard to redefine our airport strategy with the passenger at the core of everything we do. It’s wonderful that we can showcase the ongoing investment in Edinburgh Airport and our plans for continued growth to the prime minister and to the millions of passengers which travel through here each year.”
Cameron said: "Having first class infrastructure is a crucial part of our long
term economic plan to support business, create jobs and secure a brighter future for hard-working families across the country.
“The expansion of Edinburgh Airport is great news for Scotland and for the whole of the UK. It will open the door to more long-haul flights and new routes, meaning more tourism, more trade and more jobs for people here in Edinburgh and beyond.
“It will also help Scotland to compete on an international scale and of course the UK's large network of embassies across the globe will continue to keep banging the drum for Scotland and help maximise any opportunities, whether it is bringing in overseas investment or supporting businesses in Scotland to export worldwide”