Germany international of Turkish origin Mesut Ozil provided an assist for the second goal setting up Olivier Giroud who bagged a hat-trick.
Ozil has now setup 19 goals in the league this season just one short of equalling the Premier League record of 20 set by Arsenal legend Thierry Henry.
Arsenal would have finished third had Tottenham even drawn but Newcastle who had already been relegated managed to beat Spurs.
Arsenal v Aston Villa
Kick-Off: 15:00 (GMT)
Stadium: Emirates Stadium
Arsenal: Cech, Bellerin, Gabriel, Koscielny, Monreal, Coquelin, Wilshere, Cazorla, Ozil, Alexis, Giroud
Subs: Ospina, Gibbs, Arteta, Ramsey, Elneny, Campbell, Iwobi
Aston Villa: Bunn, Lyden, Lescott, Toner, Sanchez, Gana, Sinclair, Westwood, Bacuna, Ayew, Cissokho
Subs: Guzan, Richards, Adama, Gil, Hepburn-Murphy, Gestede, Grealish
Goals: 5, 78, 80 Giroud, 90′ Bunn