Just a fyi. My brother & sil flew SWA to Vegas and did the 24 hr check-in last week and ended up with B50 & 51. Why? They bumped the departure time up 5 minutes and he never caught the change. Apparently a lot of others did. I'm not sure I would either. I usually just go by the confirmation email time. He says he never got any notice of a change. Maybe 5 minutes doesn't warrant a notification, or he ignored it as another sale email and didn't read it?? Anyway, just another thing to check. We always do the 24 hr check-in outbound and pay for EB coming home so I don't have to deal with finding internet access on vacation.