NH Elite members and ANA credit card holders can book two days before everyone else for this promotion starting from the 1st of May for boarding between July to end of September. They actually only have a couple of hours head start as ANA Credit card members can start booking for 2 pm when Elite members get from 11 am. Seems like big sale that might be worth getting into if you have upcoming bookings you want to make and secure early. It also looks like you don't have to pay until 2 months before your departure date! See here More information can be found here including the timeline of when you can book. Note only available in Japanese at this point in time.