The virtual airline's flights were originally planned to be operated by Danish Alsie Express[citation needed] while later French Chalair Aviation stepped in.
A few weeks prior, ALK Airlines also pulled out of their mutual affiliation bringing back Chalair Aviation to operate the currently remaining German domestic flights.
[11] This sparked controversy as both Berlin and Munich airports confirmed that neither Green Airlines nor another operating carrier of their behalf requested the necessary slots for the routes as of late January.
[12] After cancelling several scheduled inaugural flights for their expanded network, Green Airlines commenced one of their new services in April 2022 with a Cessna Caravan instead of the planned ATR 72 due to lower than expected passenger numbers.
[14] In May 2022, German environmental protection NGO Deutsche Umwelthilfe announced it would sue Green Airlines over claims the company misled passengers over its CO2-compensation efforts.