The service would be applied to each unaccompanied minor's trip after you pay the Avianca Unaccompanied Minor Fee. For every class of service and fare type, the charge would remain the same. When you pay for the unaccompanied minor service at the Avianca sales office or by getting in touch with customer care, discounts will be applied.
https://flighttravo.com/minors....-policy/avianca-airl

Avianca Airlines Unaccompanied Minor Policy, Fees
flighttravo.com

Avianca Airlines Unaccompanied Minor Policy, Fees

Read about Avianca Airlines unaccompanied minor policy and fees. Check how to book an unaccompanied minor service for travelling alone.