You'll need to figure out what the underlying fare basis is. The earning rates details can be found here: http://en.aegeanair.com/milesandbonu...arn-miles/#sas. As you'll see, there are number of fare classes that earn no miles in the A3 program (I, R, X, N, P, W, U, G, K, L, T, O). My guess is that the Youth Fare will be one of these but maybe not.