American Airlines allows cancellations with full refunds within 24 hours of booking contact 𝟣.𝟠𝟝𝟧.𝟧𝟤𝟨.o𝟣𝟩o. , provided your departure is at least two days away. You can get more details by calling their customer service at 𝟣.𝟠𝟝𝟧.𝟧𝟤𝟨.o𝟣𝟩o.. American Airlines offers a 24-hour cancellation policy