Customers usually purchase EarlyBird Check-In as part of their original flight purchase. However, if not purchased with the initial ticket, customers can add Early Bird Check-In to a flight after purchase up to 36 hours before a flights scheduled local departure time.

Also, can you upgrade after online check in? If an upgrade is still unavailable at this point, check in online at the airlines Web site. Priority is usually given to those who have checked-in the earliest and with online check-in available 24 hours prior to departure; this will greatly increase your chances of getting that elusive upgrade.

Also asked, how much does it cost to upgrade boarding position?

To purchase Upgraded Boarding, you need to see an agent at the gate. (This upgrade costs -, depending on route.)

How do I add TSA Precheck to Southwest after check in?

Southwest Airlines

Click here and log in. (Note: if you get an error, close the tab and then click the link again.) You should automatically be directed to the “Edit Profile Information” section of your account. Enter your KTN in the “Known Traveler Number” box. Scroll to the bottom and click “Save.”