Olympic champion Kearney placed first in qualification and Kingsbury fourth with Canadian team-mate Alexandre Bilodeau leading with that where the results were based due to bad weather.
Both Kearney and Kingsbury led the overall World Cup standings ahead of the last round of the season, a dual moguls event scheduled, and they stayed there despite the finals not taking place.
Kearney claimed her second successive victory after winning the second event in Are last time out to end with 731 points overall, 91 ahead of Justine Dufour-Lapointe who was fifth in qualification.
Olympic champion Bilodeau claimed a third straight win after placing first in the men's qualification however Kingsbury's ranking of fourth saw him take the overall title by 47 points.
Bilodeau was always up against it with 97 separating the two after the penultimate round in Are with Kingsbury's defending his title from last year, like Kearney, and ending on 940 points.