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

Return flights

14 Sep - 21 Sep	WestJet
07 Sep - 14 Sep	WestJet
28 Sep - 05 Oct	WestJet
21 Sep - 28 Sep	Air Canada
10 Sep - 17 Sep	WestJet
17 Sep - 24 Sep	WestJet
16 Sep - 23 Sep	Copa
13 Sep - 20 Sep	Porter Airlines (Canada) Ltd
20 Sep - 27 Sep	Porter Airlines (Canada) Ltd
23 Sep - 30 Sep	Porter Airlines (Canada) Ltd
27 Sep - 04 Oct	Porter Airlines (Canada) Ltd
24 Sep - 01 Oct	WestJet
25 Sep - 02 Oct	Copa
09 Sep - 16 Sep	Copa
30 Sep - 07 Oct	Copa
29 Sep - 06 Oct	WestJet
26 Sep - 03 Oct	Air Transat

Also check the deals for one-way flights from Montreal to Antigua 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 Antigua in September from 382€

Return flights