- Southwest Airlines Check-in online up to 24 hours prior to departure.
- Need your confirmation number and name of passenger in order to use online check-in.
- Passengers traveling with infants without a seat cannot check-in online as identification proving the child is under 2 years old must be presented to a Southwest Airlines agent.
Southwest Airlines Tickets and Reservations - Check in Online
By Arlene Fleming, About.com Guide
Southwest Airlines offers check-in online, and a few of the particulars of their web check-in services:
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