With flights as empty as they are I have absolutely noticed earlier clearance than what I experienced last year. For my SEA-LAX-NRT-SIN-NRT-LAX-SEA trip starting 4/30 everything cleared at ticketing last week except NRT-SIN-NRT..and both of those segments cleared for both of us last night. I've got an upcoming transcon SEA-MCO next month and all legs but 1 have cleared...and my SEA-SFO-DEN-SFO-SEA this week cleared at the 100 hour window. ^