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

Return flights

29 Aug - 14 Sep	FrenchBee
29 Aug - 13 Sep	Delta
30 Aug - 13 Sep	Delta
31 Aug - 07 Sep	Air France
31 Aug - 08 Sep	Air France
25 Aug - 01 Sep	Air Transat
29 Aug - 05 Sep	FrenchBee
28 Aug - 04 Sep	FrenchBee
29 Aug - 07 Sep	FrenchBee
30 Aug - 06 Sep	Condor
22 Aug - 29 Aug	Air Transat
19 Aug - 26 Aug	FrenchBee
24 Aug - 31 Aug	FrenchBee
21 Aug - 28 Aug	FrenchBee
27 Aug - 30 Aug	Air France
26 Aug - 30 Aug	Delta
18 Aug - 25 Aug	Condor
16 Aug - 23 Aug	Porter Airlines (Canada) Ltd
14 Aug - 21 Aug	Air Transat
14 Aug - 25 Aug	Condor

Also check the deals for one-way flights from Montreal to Prague 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 Prague in August from $660

Return flights