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

Return flights

18 Aug - 25 Aug	Air Transat
03 Aug - 18 Aug	Air France
30 Aug - 06 Sep	Air France
25 Aug - 01 Sep	Air Transat
11 Aug - 18 Aug	Air Transat
03 Aug - 10 Aug	Air France
04 Aug - 11 Aug	Air France
05 Aug - 12 Aug	Air France
09 Aug - 16 Aug	Air France
10 Aug - 17 Aug	Air France
12 Aug - 19 Aug	Air France
17 Aug - 24 Aug	Air France
26 Aug - 02 Sep	Air France
31 Aug - 07 Sep	Air France
27 Aug - 03 Sep	Air France
29 Aug - 05 Sep	FrenchBee
28 Aug - 04 Sep	Air France

Also check the deals for one-way flights from Montreal to Helsinki 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 Helsinki in August from 754€

Return flights