How To Upgrade Southwest Flight? Flying with Southwest Airlines and thinking of upgrading your seat to enjoy a comfortable journey. Southwest Airlines provides different mediums to make flight upgrades depending on the availability of seats in the next cabins. Passengers can avail of the Southwest Upgrade Flight option by purchasing an upgraded boarding, with the help of rapid rewards points or by purchasing an Early-Bird check-in. For more details on guidelines and benefits, visit the Southwest Airlines official website or read the blog at the mentioned link. Read more: https://tinyurl.com/southwest-flight-upgrade #southwestupgradeflight #southwestairlinesseatupgrade