Yes, Air Europa allows minors to travel alone. According to Air Europa Unaccompanied Minor Policy kids aged between 5 to 11 years traveling without an adult or optional for the 12 to 17 year. book your minors reservations-

Online: book your minors flight by Air Europa official website.

Phone: Call Air Europa customer service for assistance. Provide them all necessary information to complete your booking process.

Travel Agent: Contact a travel agent for help for any last-minute unaccompanied minor flights.

Book the UMNR service in advance, as it requires specific forms and incurs an additional fee. For more info read the blog mentioned at link-
https://www.airlinesunaccompaniedminor.com/air-europa-unaccompanied-minor