AirHint found the following cheapest return flights from Montreal (YUL) to Dublin (DUB) in July 2025 (see full year).

Return flights

15 Jul - 26 Aug	Air Transat
29 Jul - 18 Aug	FrenchBee
16 Jul - 23 Jul	Air Canada
28 Jul - 12 Aug	Lufthansa	direct
14 Jul - 21 Jul	Air Canada	direct
12 Jul - 21 Jul	Air Canada
13 Jul - 19 Jul	Air Canada
17 Jul - 24 Jul	Air Canada
31 Jul - 07 Aug	Air Canada
29 Jul - 05 Aug	FrenchBee
20 Jul - 05 Aug	FrenchBee
30 Jul - 05 Aug	FrenchBee
30 Jul - 06 Aug	FrenchBee
21 Jul - 04 Aug	Air Canada	direct
28 Jul - 04 Aug	Air Canada	direct
21 Jul - 28 Jul	Lufthansa
15 Jul - 22 Jul	WestJet
24 Jul - 31 Jul	FrenchBee
18 Jul - 21 Jul	FrenchBee
18 Jul - 25 Jul	Air Canada

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

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.

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Cheapest return flights from Montreal to Dublin in July from $647

Return flights