The union said the carrier’s ultimate goal is to push the Breeze unit to decertify.
The first aircraft with the new cabin will enter service in December.
New “self-service flows” are meant to help passengers navigate flight disruptions.
The aircraft will help the carrier grow its international network, officials said.
Michael O’Leary has ruled out using the satellite-based internet service.
The airline is looking to maximize capacity amid constraints from air traffic control and a scarcity of available airport gates.
The option is available to current PreCheck travelers with a valid passport.