From the airport website
Newquay Cornwall Airport Flights to Cease Temporarily
We were informed around 4.30pm today (26.11.08), that the RAF is unable to continue to operate the airfield at St Mawgan beyond the original transition date of 1 December.
26 November 2008
Given that the Airport will not be licensed until 19 December, we are effectively closed for commercial flights with flights resuming on 20 December 2008. However, the terminal building will remain open and in operation for check-in.
Flights up to and including 30 November will operate as normal. We will fully advise passengers as soon as we can of the alternative arrangements that will be in operation.
We will be setting up a hotline for passengers to ring for information regarding their flights as soon as possible. We will issue further press releases with more information as it is available.
We are speaking urgently to our airlines about this announcement and will work closely with them to put in place contingency measures which will minimise the disruption and inconvenience to passengers.
"We are very sorry for the inconvenience this temporary cancellation of flights from the Airport will cause to those who have booked flights during this period", said Andrew Mitchell, Economic Portfolio Holder for Cornwall County Council. He continued, "We are clearly very disappointed that the RAF has not been able to continue to operate the airfield beyond the 1st December. We would like to place on record our sincere appreciation for the cooperation we have received from the RAF throughout this project."
Newquay Cornwall Airport - Newquay Cornwall Airport Flights to Cease Temporarily
Looks as though they have the 19th as a definite date for the license to commence