They battled it out in their respective Boys and Girls fields back in November to set up a final during Masters weekend which will take place at 12:00 GMT.
Bradly Roes wins 2021 JDC World Youth Championship with victory over Bennett who misses 15 match darts
Previously Littler who at only 14 played the final two years ago losing to Keane Barry and will use it as preparation ahead of being second seed at the WDF World Championship in April.
As will Cairns who will play in the Girls' World Championship and has her chance to claim the first big tournament of the JDC year for 2022 which began with players booking Advanced Tour spots in Coventry at their own Q-School.
Saturday November 6
Boys Grand Finals
Henry Coates 5-4 Leighton Bennett
Luke Littler 5-1 Connor Hopkins
Luke Littler 5-2 Henry Coates
Girls Grand Finals
Eleanor Cairns 5-1 Sophie McKinlay
Hannah Meek 5-4 Lauren Stokoe
Eleanor Cairns 5-2 Hannah Meek