Air Canada was the first national carrier to make the move to gender-neutral language in 2019.
British Airways was praised by some passengers who found the term "ladies and gentlemen" too formal, old fashioned and patronising.
The PA change was met by hostility from some travellers and pundits.
Commentator Piers Morgan dismissed the move as "virtue-signalling nonsense".
WWP founder and UK marketing guru Martin Sorrell was unimpressed by the branding decision.
"The important thing is not the announcements, it's the food, the Wi-Fi, the service, the speed of getting on and off the plane," he told the Telegraph.
The diversity offering was not a core issue for travellers but an easy win for the airline, calling it a "sign of the times".
Air New Zealand updated onboard PAs to encompass all genders in 2020, said a spokesperson for the airline.
"At this time we moved from 'Kia ora ladies and gentleman' to using 'Kia ora everyone'."