AirHint found the following cheapest return flights from Montreal (YUL) to Copenhagen (CPH) in August 2025 (see full year).

Return flights

31 Aug - 07 Sep	Air Transat
30 Aug - 10 Sep	Air Transat
31 Aug - 11 Sep	Air Transat
27 Aug - 03 Sep	Porter Airlines (Canada) Ltd
29 Aug - 05 Sep	Air Transat
28 Aug - 04 Sep	Air Transat
25 Aug - 01 Sep	Air Transat
26 Aug - 02 Sep	Air Transat
15 Aug - 24 Sep	Porter Airlines (Canada) Ltd
18 Aug - 01 Sep	FrenchBee
21 Aug - 31 Aug	WestJet
21 Aug - 28 Aug	Air Transat
18 Aug - 25 Aug	FrenchBee
16 Aug - 27 Aug	FrenchBee
12 Aug - 27 Aug	FrenchBee
10 Aug - 31 Aug	FrenchBee
12 Aug - 26 Aug	WestJet
24 Aug - 31 Aug	Air Transat
16 Aug - 22 Aug	FrenchBee
22 Aug - 29 Aug	Air Transat

Also check the deals for one-way flights from Montreal to Copenhagen 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.

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Cheapest return flights from Montreal to Copenhagen in August from 560€

Return flights