Delta and American Airlines Earn Billions from Credit Card Partnerships, Highlighting Uncapped U.S. Interchange Fees
💸 Delta collected $8.2 billion from American Express in 2025, making up 14% of its adjusted operating revenue. This figure is expected to reach $10 billion. American Airlines earned $6.2 billion from co-brand cards and partners, and signed a 10-year exclusive deal with Citi, projected to add $1.5 billion annually. These earnings highlight the significant role of interchange fees in the U.S. credit card system, uncapped unlike in other wealthy economies.
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