In the third quarter of 2023, the airline receiving the largest number of complaints per million passengers in the UK was Wizz Air. The airline received 709 complaints per million passengers.
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Civil Aviation Authority (UK). (January 25, 2024). Number of complaints per million passengers against UK airlines in Q3 2023 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 20, 2026, from /statistics/304088/uk-airline-passenger-complaints/
Civil Aviation Authority (UK). "Number of complaints per million passengers against UK airlines in Q3 2023." Chart. January 25, 2024. ÌÇÐÄÆƽâ°æ. Accessed July 20, 2026. /statistics/304088/uk-airline-passenger-complaints/
Civil Aviation Authority (UK). (2024). Number of complaints per million passengers against UK airlines in Q3 2023. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 20, 2026. /statistics/304088/uk-airline-passenger-complaints/
Civil Aviation Authority (UK). "Number of Complaints per Million Passengers against Uk Airlines in Q3 2023." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 25 Jan 2024, /statistics/304088/uk-airline-passenger-complaints/
Civil Aviation Authority (UK), Number of complaints per million passengers against UK airlines in Q3 2023 ÌÇÐÄÆƽâ°æ, /statistics/304088/uk-airline-passenger-complaints/ (last visited July 20, 2026)
Number of complaints per million passengers against UK airlines in Q3 2023 [Graph], Civil Aviation Authority (UK), January 25, 2024. [Online]. Available: /statistics/304088/uk-airline-passenger-complaints/
