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

Return flights

23 Sep - 30 Sep	United
02 Sep - 09 Sep	United
10 Sep - 17 Sep	United
16 Sep - 23 Sep	United
24 Sep - 01 Oct	United
30 Sep - 07 Oct	United
11 Sep - 18 Sep	United
04 Sep - 11 Sep	United
08 Sep - 15 Sep	United
12 Sep - 19 Sep	United
18 Sep - 25 Sep	United
22 Sep - 29 Sep	United
26 Sep - 03 Oct	United
28 Sep - 05 Oct	United

Also check the deals for one-way flights from Montreal to Belize City in September.

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 September from 477€

Return flights