Cheapest return flights from Montreal to Dublin in September from $446

Best time to book flights for Montreal (YUL) to Dublin (DUB) flights at AirHint

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

Return flights

05 Sep - 15 Sep Air Transat
18 Sep - 25 Sep Air Transat
27 Sep - 12 Oct Air Transat
17 Sep - 24 Sep Air Transat
16 Sep - 24 Sep Air Transat
05 Sep - 12 Sep Air Transat
14 Sep - 21 Sep Air Transat
24 Sep - 08 Oct Air Transat
24 Sep - 15 Oct Air Transat
02 Sep - 16 Sep Lufthansa
02 Sep - 09 Sep Air Transat
07 Sep - 11 Sep Air Transat
22 Sep - 29 Sep Air Transat
14 Sep - 05 Oct Air Transat
17 Sep - 04 Oct Air Transat
16 Sep - 11 Oct Air Transat
29 Sep - 06 Oct Air Transat
28 Sep - 05 Oct Air Transat
28 Sep - 11 Oct Air Transat
07 Sep - 04 Oct Air Transat

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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