Whether American Airlines provides cash compensation for a cancelled flight depends on the reason for the cancellation and the jurisdiction of the flight. Under the 2024 U.S. DOT "Automatic Refund Rule," if American cancels your flight for any reason and you choose not to travel, they must provide a full cash refund to your original payment method within 7 days. However, for domestic U.S. flights, there is no federal law requiring "extra" cash compensation for the inconvenience itself. If the cancellation is within the airline's control (like a mechanical issue or crew shortage), American will typically provide meal vouchers and hotel accommodations for overnight stays. If you are flying from the UK or EU to the U.S., you are protected by UK261/EU261, which does mandate cash compensation of up to $650 (€600) per person for cancellations made less than 14 days before departure, unless the cause was an "extraordinary circumstance" like severe weather. Always ask the gate agent for a "written statement of delay" to use as evidence when filing a claim later.