Passengers at Glasgow Airport endured increased delays in the spring.

The number of scheduled flights on time at five UK airports - Manchester, Edinburgh, Birmingham, Glasgow and Newcastle - fell from 84% in spring 2013 to 81% from April and June.

Also monitored were the five biggest London airports, Heathrow, Gatwick, Stansted, Luton and London City.

Figures showed a total of 72% of charter flight arrivals and departures were on time, compared with 77% in spring 2013.