IMHO - If you can get airfare after this summer for 2023 you'll likely do better expense-wise due to the significant gas prices right now.
I am taking the family to Aulani in June and we bought our tickets in July 2021 for American Airlines, flying First / Business Class (Flagship Class) from PIT through DFW then to HNL. Highly recommend if you can afford the FC/ BC seats get them for the long haul flight.