The new airport terminal, part of a wider masterplan, is expected to be completed in time for 2007's Cricket World Cup, to be held in the Caribbean.
Peter Farmer, Reid's project leader said: 'We have created a striking metal-clad roof that will provide a very different gateway experience for passengers.
'Supported on sustainable, laminated timber beams, this will give a natural warmth and texture while still providing the impressive larger, open spans required in the terminal building.'
Procurement for the first phase of the passenger terminal has just begun, with construction due to start early next year.
According to the architect, tourism represents over 60 per cent of Antiguan GDP and the airport is 'the life-blood' of that industry.