Devillard started her season at the Baku World Cup where she finished fourth on vault. Devillard won a bronze medal on vault at the 2019 Doha World Cup in addition to finishing eighth on floor. At the 2019 European Championships, Devillard won a silver medal on vault behind Maria Paseka. After the competition, Devillard said "I dreamt of this medal, I knew I could do something. I succeeded on both of my vaults. One could always do better, but I’ve come back, and I’ve repeated a medal... Given that [Paseka's] start value was mega high, with two-tenths more than mine, she was automatically the favorite. And she did her job. But I am also going to augment my difficulty value next year, and we’ll see who will win."