Scotland's biggest hub had a punctuality rate of 85% during the first three months of the year. Only four other airports – Newcastle, London City, Birmingham and Edinburgh – matched that figure.
Manchester and Heathrow were the worst performers. More than a fifth of flights were late. Charter flights faced an average delay of 22 minutes while scheduled flights suffered delays of around 10 minutes.
The latest statistics come from the Civil Aviation Authority (CAA).
CAA regulatory policy director Iain Osborne said: "It is excellent to see that airlines have managed to maintain their record performance this year."
The new figures come shortly after Glasgow was voted the best airport in Scotland.