Downie was selected to compete at the 2019 European Championships alongside Amelie Morgan, Alice Kinsella, and Kelly Simm. She competed at the British Championships where she placed first in the all-around, on vault, and on floor exercise. She later competed at the Birmingham World Cup where she placed seventh after falling off the balance beam and uneven bars. At the European Championships Downie qualified to the all-around final in fourth place and to the vault final in first. In the all-around final Downie finished second behind Mélanie de Jesus dos Santos of France. She won bronze in the vault final behind 2015 vault champion Maria Paseka and 2017 vault champion Coline Devillard.