Roman Protasevich was arrested shortly after the plane was diverted to Minsk on Sunday.
The airline has said the actions had caused an "irreparable breach of trust."
Ryanair finally breaks its silence on why it didn't boot the white man after his racist rant.
The Transport Secretary has since described the incident as "unacceptable."
The man called the woman an "ugly black bastard," yet Ryanair staff members let him keep his seat.
The airline definitely would have found volunteers if it had kept increasing the offer.
He made it to his destination, but may face punishment for breaching security.