Mikel Arteta changed his entire XI for the trip to Dublin, naming a group of youngsters to his squad, and they quickly took the lead when Eddie Nketiah (12) returned home. Mohamed Elneny (18) scored a sensational curling effort soon after to double Arsenal’s lead in style.
But Dundalk – who won the FAI Cup on Sunday at the same stadium – was not due to end his Europa League campaign quietly as Jordan Flores (22) pulled out a goal with his own fierce effort.
The second half took longer to start, but young players Joe Willock (67) and Folarin Balogun (80) added two more, before the late header from Sean Hoare added another moment to savor in the Dundalk’s last game of the season.
Arsenal were already assured of first place in Group B and won six consecutive major European matches for the first time since November 2005 and are now nine undefeated on the road in Europe for the first time.
Arsenal have already qualified for the last 32 games and will discover their opponents on Monday, December 14 in the draw. They will host Burnley in the Premier League on Sunday, live on Sky Sports; kick off at 7.15 p.m. Dundalk’s loss to Arsenal was their last game of the season.