While air passenger traffic and revenue were down more than 50% in 2020 due to the impact of COVID-19, several carriers got a boost in revenue from their ancillary products and services. According to the 2021 CarTrawler Yearbook of Ancillary Revenue, produced by IdeaWorksCompany, Allegiant, Spirit, Viva Aerobus and Wizz Air all earned more than 50% of their total revenue from ancillaries last year. Wizz Air is in the top stop – with ancillary revenue accounting for 55.9% of its total revenue, which the report says beats the prior record of 47.6% from Viva Aerobus in 2018. The report includes data voluntarily disclosed by 75 airlines around the world. Seventy-three of those airlines were part of the prior year’s report, and for them, total ancillary revenue was down $34.7 billion in 2020.