The loss of BMI Baby flights is the main reason for the decline in passenger travel through Cardiff Airport, according to Steve Hoggetts on 8 March 2012.
Over 1/2million passengers per year used the airline, according to the airport's business development and commercial director.
Since it's departure the airport has only managed to attract Vueling, a low cost airline which offers flights to three Spanish destinations.
Mr Hoggetts called for a further devolution of powers in order to allow the airport to "work more closely with an administration which is more committed to regional airports".
He also stressed that lowering or getting rid of the airport departure tax would attract more passengers to use the flights already on offer.
Flybe's Niall Duffy explained that it would only take 6 weeks for an airline to add a new route as it is "one of the most responsive businesses around".
He warned however that every airline's requirements are different and whilst Flybe look for cost certainty and quick turn around, which Cardiff do well, the airport might not necessarily fulfil the requirements of other airlines.