Figures released by Aberdeen International Airport have shown that 274,232 passengers travelled through the airport in September, a decrease of 15.1% compared to the same month last year.
International and domestic traffic was down 10.7% and 16.8% respectively, with helicopter traffic down 18.6%.
Carol Benzie, managing director of Aberdeen International Airport, said: “In spite of the North Sea oil downturn and the decrease in traffic, we are planning ahead and looking forward to a positive future for the airport.
“Strengthening our route network with more leisure opportunities has been one of our main priorities for a number of years, and this was demonstrated with the announcement earlier this month that airBaltic is coming back to Aberdeen International Airport with an exciting new leisure route to Riga next summer.”
Low-cost carrier airBaltic will operate three flights a week to the Latvian capital from May to September 2017.
Ryanair has announced that it will also return to Aberdeen in February with year-round twice-weekly flights to Alicante, Malaga and Faro, three of the most requested routes in a leisure survey carried out by the airport earlier this year.