AirHint found the following cheapest return flights from Montreal (YUL) to Dublin (DUB) in August 2026 (see full year).

Return flights

31 Aug - 14 Sep	TAP
31 Aug - 21 Sep	TAP
24 Aug - 14 Sep	TAP
31 Aug - 07 Sep	TAP
21 Aug - 26 Aug	WestJet
24 Aug - 07 Sep	TAP
16 Aug - 23 Aug	WestJet
26 Aug - 02 Sep	Air Transat
25 Aug - 01 Sep	Air Transat
27 Aug - 03 Sep	Air Transat
30 Aug - 06 Sep	TAP
10 Aug - 24 Aug	Air Canada	direct
03 Aug - 10 Aug	Air Canada	direct
19 Aug - 24 Aug	Air Canada	direct
24 Aug - 31 Aug	TAP
10 Aug - 17 Aug	Air Canada	direct
17 Aug - 24 Aug	Air Canada	direct
19 Aug - 26 Aug	TAP
21 Aug - 28 Aug	TAP
22 Aug - 05 Sep	WestJet

Also check the deals for one-way flights from Montreal to Dublin in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Cheapest return flights from Montreal to Dublin in August from 591€

Return flights