Several travel rewards credit cards offer free checked baggage perks, including: Citi ® / AAdvantage ® Platinum Select ® World Elite Mastercard ® : Get your first checked bag free on domestic flights, plus a free checked bag for up to four other family members or friends on the same reservation. Knowing the rules in advance will give you sufficient time to make a plan of action, whether that means paying lower baggage fees before you get to the airport, packing lighter, or opening one of the best airline credit cards, many of which come with more benefits beyond free checked bags.