Apply for a Southwest Airlines credit card that offers a free checked bag benefit
Use the card to book your Southwest flight
Make sure the Southwest Rapid Rewards account linked to the reservation matches the cardholder account
Check in with the same Southwest account used for the booking
Bring one eligible checked bag to the airport
Present your Southwest reservation and cardholder details if asked
Confirm the bag fee is waived at check-in or bag drop
Follow Southwest’s current baggage policy and card benefit terms
Verify the benefit applies to your specific card and fare before traveling