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

Return flights

23 Aug - 30 Aug	Air Transat
30 Aug - 06 Sep	FrenchBee
25 Aug - 01 Sep	Air Transat
31 Aug - 07 Sep	TAP
18 Aug - 25 Aug	Air Transat
24 Aug - 11 Sep	Air France
15 Aug - 25 Aug	WestJet
29 Aug - 05 Sep	FrenchBee
27 Aug - 03 Sep	Azores Airlines
11 Aug - 18 Aug	Air Transat
16 Aug - 23 Aug	Air Transat
04 Aug - 11 Aug	Air France
10 Aug - 17 Aug	Air France
24 Aug - 31 Aug	Air France
05 Aug - 12 Aug	Air France
09 Aug - 16 Aug	Air France
26 Aug - 02 Sep	Air France
28 Aug - 04 Sep	FrenchBee

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 802€

Return flights