On southwest airlines can be checked at the earliest. The southwest airline can also posses to print that in the boarding pass at that time. The boarding passes will be available at that time at the Southwest Airlines Skycap Podium which is available. He is use to prefer the boarding pass and also printing near the E-Ticket which appear in the Kiosk. Southwest airline is also need to schedule the departure time. He has the eligible fare type. The 24 hrs which is prior to the schedule of the departure time.