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

Return flights

26 Aug - 02 Sep	Copa
29 Aug - 05 Sep	Copa
23 Aug - 08 Sep	Delta
22 Aug - 29 Aug	Delta
20 Aug - 27 Aug	Delta
23 Aug - 31 Aug	Delta
19 Aug - 26 Aug	Copa
28 Aug - 04 Sep	Air Transat
25 Aug - 01 Sep	Air Transat
21 Aug - 28 Aug	Avianca
27 Aug - 03 Sep	Air Transat
31 Aug - 07 Sep	Air Transat
18 Aug - 25 Aug	Porter Airlines (Canada) Ltd
16 Aug - 26 Aug	Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Montreal to Belize City 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 Belize City in August from 506€

Return flights