Priority within 24 hours
New waitlist requests for MileagePlus Upgrade Awards, Regional Premier Upgrades, and Global Premier Upgrades can be made until 24 hours prior to departure. At 24 hours from departure, waitlists will expire and automatic processing of upgrades, per the priority listed above, will continue. As customers check in, they will be placed on an airport upgrade standby list. This standby list will clear starting at two hours prior to departure, based on Premier status, fare class and time of check-in.