UK budget airlines have topped global delay rankings for 2025, according to new data from aviation analytics firm Cirium. The study, which analysed on-time performance across major carriers, found that British low-cost carriers recorded the highest average delays among budget airlines worldwide.
EasyJet, Ryanair, and Jet2.com were among the worst performers, with average delays exceeding 30 minutes per flight during peak summer months. The findings highlight ongoing operational challenges for the sector, including air traffic control constraints and staffing shortages.
Cirium's report noted that UK budget airlines faced particular difficulties at busy airports such as London Gatwick and Manchester, where congestion contributed to significant hold-ups. In contrast, full-service carriers like British Airways and Virgin Atlantic performed better, though still below global averages.
The data comes as the aviation industry continues to recover from the pandemic, with passenger numbers surging but infrastructure struggling to keep pace. Industry experts have called for increased investment in air traffic control and airport capacity to address the issue.
Cirium's rankings are based on flights tracked between January and December 2025, measuring actual departure and arrival times against scheduled times. The full list of the world's most punctual airlines is expected to be released later this month.
