Cheapest return flights from Montreal to Dublin in September from 485€

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

Return flights

14 Sep - 20 Sep Air Canada direct
29 Sep - 07 Oct Air Canada direct
15 Sep - 22 Sep FrenchBee
23 Sep - 07 Oct Air Canada
14 Sep - 02 Oct Lufthansa
08 Sep - 15 Sep FrenchBee
30 Sep - 07 Oct Air Canada
15 Sep - 25 Sep Air Transat
15 Sep - 22 Sep Air Canada direct
14 Sep - 25 Sep Air Canada direct
15 Sep - 25 Sep Lufthansa direct
14 Sep - 27 Sep Air Canada direct
14 Sep - 23 Sep Air Canada direct
17 Sep - 25 Sep Air Transat
10 Sep - 02 Oct Lufthansa
29 Sep - 06 Oct Lufthansa
27 Sep - 04 Oct Air Transat
28 Sep - 05 Oct Air Canada
26 Sep - 07 Oct Air Canada direct
24 Sep - 07 Oct Lufthansa

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

Skyscanner

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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