Frontier Tops List of Most Complained-About US Airlines in 2023

Complaints against budget airlines surge as overall grievances reach record levels, despite fewer cancellations and delays.

Frontier Airlines received 33 complaints per 100,000 passengers, the highest among US airlines.
Spirit Airlines and JetBlue followed with 15 and 13 complaints per 100,000 passengers, respectively.
Overall airline complaints increased by nearly 29% in 2023, setting a new record of 61,233 grievances.
Alaska Airlines had the lowest complaint ratio, with just 2 complaints per 100,000 passengers.
The Biden administration has introduced new rules requiring airlines to issue automatic refunds for significant delays and cancellations.