Hi Eden, welcome to planDisney!
I'm happy to give you the rundown on
dining reservations! Dining reservations can be booked up to 60 days in advance. Also, through personal experience, and discussions with my fellow planDisney panelists, it's our understanding that dining reservations will open 60 days in advance at 6 a.m. (California time). So even if you call Disney Dining at 714-781-3463, you cannot book dining reservations further out than 60 days.
With that said,
Blue Bayou Restaurant is one of the more popular dining locations at
Disneyland Park. The best chance that you have at securing a reservation for your arrival date is waking up at 6 a.m. (California time), 60 days in advance, and trying to book a reservation
online. In the worst case you miss, that window and reservations end up getting all booked, I recommend you keep checking online up until your arrival date, as reservations can open up.
I hope that helped! If you have any more questions, please do visit us again!
See ya real soon!
Jin