The Davis Cup and Champions League helped boost passenger numbers at one of the country's major airports last month.
Glasgow Airport recorded its busiest September in 50 years after 934,295 passengers travelled through its doors, an annual increase of 4.2%.
Domestic and international traffic grew by 4.2% and 4.3% respectively.
Airport bosses said major events such as the Davis Cup tennis competition and Celtic's participation in the Champions League helped draw more visitors to the city.
Strong demand for Ryanair's servaice to Derry and extra capacity on easyJet's Bristol and Belfast services bolstered domestic travel, while international passenger numbers were boosted by a 12% rise in EU scheduled services.
Amanda McMillan, managing director of Glasgow Airport, said: "Our strong performance throughout the year continued in September, which was also the fourth consecutive month the airport carried more than 900,000 passengers.
"We are on course to record our most successful year and this success can be attributed to our continued focus on not only attracting new services, but working closely with our current airlines to enhance existing services."
Edinburgh Airport also saw an increase in passenger numbers last month, with 1,191,728 passing through the airport, an 11% rise on September 2015.
Passenger numbers on international flights were up 21.5% on the same month last year, however domestic passenger numbers were down 2.5%.
The airport attributed the increase to new routes launched over the past year, including easyJet's Stuttgart, Vienna and Venice services, and Ryanair's Copenhagen flights.
Airport chief executive Gordon Dewar said: "These latest set of passenger figures are very welcome indeed and are testament to both the tremendous international draw of Edinburgh and Scotland as a destination and of the hard work we are doing here to attract new airlines and routes.
"We have strong indications that Edinburgh Airport - unlike the majority of the UK airport market - has a healthy balance of inbound and outbound passengers.
"This gives us confidence that we can continue to perform well and help deliver connectivity, which creates jobs and delivers growth for Scotland - in spite of any wider economic uncertainty in the sector and economy at large."
At Aberdeen International Airport, passenger numbers were 15.1% down on the same month last year, with 274,232 travelling through its doors in September.
International and domestic traffic was down 10.7% and 16.8% respectively, with helicopter traffic down 18.6%.
Managing director Carol Benzie 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."
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