When Should You Check In for Southwest Flights? For the best seat selection on Southwest, timing your check-in is crucial. The Southwest Airlines check-in and boarding process begins 24 hours before your scheduled flight. Check in exactly at that time to get a lower boarding number, which means better seating options. Seats aren't assigned, so your check-in time determines how early you board. If you wait too long, you might end up with a middle seat. Knowing when to check in helps you navigate the Southwest Airlines check-in and boarding process smoothly and avoid stress on the day of your flight. https://www.airlinereservationwindow.com/southwest-airlines-check-in-and-boarding-process/ #SouthwestAirlines#SouthwestCheckIn#SouthwestBoarding