Participants in Race for the Cure receive a discount code that is valid for 10% off American Airlines flights booked at AA.com for travel through December 31.

You must sign in with your AAdvantage number and enter the promotion code 4D12KD on the confirmation page.

This code is valid on tickets of $160 and up (not including taxes and fees). Some fares are ineligible, but my experience is that you can’t always predict in advance which ones those will be — you just have to price out an itinerary to see.