Exchange gift cards for cash when you sell Chick-fil-A gift cards on the GCX online marketplace. Try setting the selling price of your Chick-fil-A gift card to at least 5% less than its current value in order to maximize your return, but ultimately the choice is yours. The higher discount you provide, the faster your gift card will sell. Chick-fil-A gift cards make great holiday presents, so list your item on our gift card marketplace now while demand is high!