Demand for charter flights is set to continue rising this month, according to the latest demand index from online charter portal Avinode. On January 1, the company’s demand index for the next 30 days showed a rise of just over 11 points, to 116.77, over the December 1 index figure. The index is also up on the 100.00 figure recorded 12 months ago on Jan. 1, 2009. Avinode calculates its demand index by taking the average financial value of the 60,000 or so trip requests processed through its system each month and working out an average daily value for trips requested for the coming month. Meanwhile, Avinode’s flight-hour prices for some specific aircraft types showed a high degree of price stability on both sides of the Atlantic, with marginal increases of less than 1 percent across the board. The average rate for a Cessna Citation Excel in the U.S. on January 1 was $3,181 versus $4,010 in Europe. The average January 1 prices for a Hawker 800 and a Challenger 604 in the U.S. were $3,321 and $4,901, respectively, compared with $4,706 and $6,428 in Europe.