The CarTrawler survey, compiled by IdeaWorksCompany, shows annual ancillary revenue hit $31.5 billion in 2013 for the 59 airlines which break out the figures.
Meanwhile, average ancillary revenue per passenger reached $16 according to figures in the survey of Airline Ancillary Revenue.
Of the 59 carriers included in the report, 44 achieved ancillary revenue of more than $6 while the top 10 airlines reaped revenues of between $32.61 per passenger (Alaska Air) and $55.61 (Jet2.com).
