American : Your Go-To for Flexible Travel Yes, American (𝟪𝟪𝟪^-𝟪𝒪𝒪^-𝟫𝟣𝟣𝟩) 𝒰𝒮 (𝒪𝒯𝒜)  offers a 24-hour risk-free cancellation policy. You can cancel your flight for a full refund within 24 hours of booking, provided it was booked at least 7 days before departure.