For the first time in 20 years, low-cost carriers are growing at a slower pace than traditional carriers in Europe, David Marsh, Eurocontrol STATFOR manager-forecasting and traffic analysis, directorate network management, said Friday.

Speaking at the 37th annual FAA Aviation Forecast Conference in Washington, Marsh said that although low-cost carriers have seen astounding growth in the last two decades over traditional carriers, “last year was the first year when the tables have turned. Low-cost carriers as a whole grew by a fraction less than traditional carriers.”

Marsh, who said the shift may partly be a “sign of the times,” said that “the low-cost model has spread very widely.” He said he still sees a difference between low-cost and traditional carriers, but “none are growing at the same rates at which they did 10 years ago.”