These 28 credit cards can get you free checked bags on your next flight

Checked bag fees can add up quickly, especially if you travel frequently or with companions.Fortunately, many airline credit cards offer a free checked bag for the primary cardholder and, in some cases, several travelers on the same reservation.Here's a look at the cards that can help you avoid checked bag fees, how their benefits work and what to know before booking your next flight.The best cards for free checked bags*The information for the Frontier Airlines World Mastercard, the Hawaiian Airlines World Elite Mastercard, the JetBlue Plus Card, the JetBlue Premier Card, the JetBlue Business Card, the Southwest Rapid Rewards Premier Credit Card and the United Club Business Card has been collected independently by The Points Guy. The card details on this page have not been reviewed or provided by the card issuers.Alaska AirlinesAlaska Airlines' first checked bag fee starts at $45. A second checked bag costs $55.CHAD SLATTERY/ALASKA AIRLINESBut if you have the Atmos Rewards Summit Visa Infinite credit card ($395 annual fee), Atmos Rewards Ascent Visa Signature credit card ($95 annual fee) or the Atmos Rewards Visa Signature Business Card ($70 for the company and $25 per card in annu...