Saka ends Arsenal's 20-year wait to reach Champions League final
Mikel Arteta's side settled the semi-final second leg with Saka's strike late in the first half at an ecstatic Emirates Stadium.
The Gunners, who drew 1-1 in the first leg in Madrid last week, held firm after Saka's goal to go through 2-1 on aggregate.
Arsenal will face Paris Saint-Germain or Bayern Munich in the final in Budapest on May 30.
Holders PSG, who beat Arsenal in the semi-finals last year, have a 5-4 lead ahead of the second leg in Munich on Wednesday.
It was a cathartic night for Arsenal...