Airlines, both foreign and domestic, are facing more complaints from their passengers.
The Canadian Transportation Agency says it received 301 complaints against eight Canadian carriers in 2012-2013 -- up from 215 the previous year.
Agency figures show that complaints against foreign carriers rose to 218 from 145 the year before.
Quality of service -- including allegations about rude and unhelpful airline staff -- was the most commonly cited issue for the seventh year in a row.
And some consumer rights advocates say the increase in complaints speaks to the need for an airline passenger bill of rights.
Air Canada, by far the nation's largest carrier, was the target of half of all the complaints directed at domestic carriers -- about 150 for the year.
But the airline notes that was out of the more than 35-million customers it flew during the year.
The airlines also argue that not all complaints filed with the C-T-A are legitimate.