Southwest Airlines allows travelers to check in online or via their mobile app starting 24 hours before departure. This is critical because Southwest assigns boarding groups based on check-in time. If you want a better boarding position (and your choice of seat), make sure to check in as early as possible.

If you prefer checking in at the airport, Terminal B offers modern kiosks for a quick check-in process. Friendly Southwest staff are always around if you need assistance.

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