A decision from North Somerset Council on the airport’s proposal had been expected on December 9.
But councillors will now have extra time to digest the plans to increase annual passenger traffic to 10 million by 2016 from the current level of six million a year.
Airport spokesman James Gore said: “While we are keen for a decision on our development proposals to be reached as soon as is practical, we recognise that North Somerset Council wishes to ensure all aspects of this complex planning application are fully considered.”
The news of the postponement of the planning decision came as Ryanair unveiled five new routes and a new aircraft for Bristol Airport yesterday.
The flights to Faro in Portugal, Gdansk in Poland, Treviso and Palma in Italy and Valencia in Spain will start in February – bringing Ryanair’s total number of routes from Bristol to 35.
The no-frills carrier is bringing a fifth aeroplane – a new Boeing 737-800 – to fly the new routes and increase the number of flights to Malaga and Malta.
The airport also revealed that passenger numbers in October were down one per cent on last year at 525,393, and the year-to-date is 10.75 per cent down on 2009.
It is the 12th consecutive month passenger traffic has fallen but the rate of decline is much slower than earlier in the year.
Mr Gore said the new Ryanair routes showed the need to expand the airport.
He said: “Ryanair’s announcement of further investment in its base at Bristol International is a vote of confidence for the South West region and underlines the importance of enhancing the airport’s facilities over the next decade.”