The broker said the average lead hull renewal rise for October was 10 percent but the figure has been double that average in some cases.

In the broker’s Airline Market news for October Aon said: “A number of the world’s largest airlines do not review until November and December.

 “These programmes tended to enjoy the most significant reductions during the soft markets of 2005-2007, and are only keeping premium increases in check through exposure reductions.

“The full year to date renewals gives a clearer picture of the true picture of the direction of the market with average lead hull and liability riding 18%”

The market has also been affected by the influx of new aircraft which were ordered prior to the recent financial woes and are now coming into service and as such are increasing fleet values.

“At the same time however charter and regional airline operations are expecting growing 2009/10 as a result of business travellers examining less expensive options because of the difficult economic conditions,” added Aon.

The broker said the industry’s data points to an eighth consecutive quarter where aviation rates will increase, and with 2009 already shaping up to be one of the heaviest loss years for some time underwriters are still faced with a third year in a row where the premiums collected will be outweighed by the costs of claims.

Any further losses will only exacerbate the trend for rising rates in the coming year which looks likely to see premium levels increase as the following market takes a tough stance at renewal it added.