American Airlines Allergy Policy

Although they do not serve peanuts, they do serve other nut products onboard, and there may be trace elements of peanuts in their food. They also warn that other passengers may bring their own snacks and can not guarantee the safety of someone with a severe allergy.

Website: http://www.aa.com/aa/i18nForward.do?p=/travelInformation/specialAssistance/healthAndWellbeing.jsp&an