Airline financial data released Monday by the U.S. Department of Transportations Bureau of Transportation Statistics revealed U.S. airlines collected nearly $5.7 billion in baggage and reservation fees in 2010.
The BTS identifies baggage and reservation fees separately, with all other passenger fees recorded in larger categories with other revenue.
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Last year airlines collected $3.4 billion in baggage fees and $2.3 billion in reservation change fees.
Other data from fourth-quarter 2010 have yet to be released.