Determining which country has the “worst” flight delays depends on the data source, year, and methodology (e.g., measuring average delay time, percentage of delayed flights, or cancellations). However, consistently high-ranking countries for significant delays often include:
Top Contenders (Based on Recent Data)
- United Kingdom — Frequently ranks poorly due to air traffic control issues, weather, and high air traffic volume, especially at major hubs like London Heathrow and Gatwick.
- United States — Often leads in total number of delays and cancellations due to its large aviation network, weather events (hurricanes, winter storms), and airspace congestion.
- Canada — Has faced notable delays, particularly in 2022–2023, due to staffing shortages and weather.
- European countries like Germany, France, and Netherlands also appear in high-delay rankings, often due to strikes, staff shortages, and capacity constraints.
Key Data Sources (2023–2024)
- Cirium’s On-Time Performance Review (2023) ranked Canada lowest among major markets for on-time arrivals (63% OTP), followed by the U.S.
- Eurocontrol data often highlights the UK and Portugal with high average delay minutes per flight.
- FlightAware’s “MiseryMap” in 2022 listed the U.S., Canada, and Brazil among the worst for cancellations and delays.
Important Context
- Causes vary: Delays can stem from weather, air traffic control issues, labor strikes, infrastructure constraints