First, as of October 26, 2025, all Hawaiian flight numbers will transition to being in the range of 800-1299, while maintaining the “HA” code. This coincides with the start of the IATA winter season, and it represents quite the change for the airline.
There seems to be a general system with which flight numbers are transitioning, so the renumbering isn’t totally random. For example, HA10 becomes HA810, HA451 becomes HA851, HA133 becomes HA1033, etc.
This change is being made in anticipation of a bigger development in the spring of 2026. As of April 22, 2026, all Hawaiian flights will transition from the “HA” code to the “AS” code.
So, why is this being made a two-step process? When flights transition from the “HA” code to the “AS” code, they’ll be able to maintain the same flight numbers, based on the transition happening in the coming weeks. In other words, the two digit code aside, putting all Hawaiian flight numbers in the 800-1299 range means there won’t be overlapping flight numbers between the two brands.