Donegal are the Eirgrid Ulster U-21 Football Champions.
The Declan Bonner managed team were far too strong for their Derry counterparts and romped to a 3-17 to 0-13 win at the Athletic Grounds in Armagh.
Donegal now play Dublin in the All-Ireland U-21 Football semi-final this Saturday at Kingspan Breffni Park in Cavan with a 2pm throw-in.
Donegal led 1-8 to 0-7 at the break with Lorcan Connor (1-5) getting the first half goal.
In the second half, Donegal's dominance became clearer.
Derry's cause was not helped when they were reduced to 14 men after Oisin Duffin got a black card on top of a previous yellow.
Ethan O'Donnell got the second goal and Michael Carroll bagged the third late on as they won by 13 points.