Arsenal reached the Champions League final for only the second time in their history with a 1-0 home win over Atletico Madrid, sealing a 2-1 aggregate victory in the semi-final on Tuesday.
Captain Bukayo Saka's tap-in just before the interval proved decisive as Arsenal kept a ninth clean sheet in this season's competition.
They will face either Paris St Germain or Bayern Munich in the Puskas Arena in Budapest on May 30, a week after hoping to seal a first Premier League title in 22 years.
Arsenal's only previous Champions League final was in 2006, a loss to Barcelona.