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

Return flights

13 Aug - 30 Aug	United
27 Aug - 03 Sep	WestJet
29 Aug - 05 Sep	Air Transat
14 Aug - 17 Aug	Porter Airlines (Canada) Ltd
24 Aug - 31 Aug	Air Transat
22 Aug - 29 Aug	Air Transat
17 Aug - 24 Aug	Porter Airlines (Canada) Ltd
22 Aug - 25 Aug	Air Transat
15 Aug - 24 Aug	Air Transat
26 Aug - 30 Aug	Porter Airlines (Canada) Ltd
23 Aug - 30 Aug	United
30 Aug - 06 Sep	Delta
15 Aug - 22 Aug	Porter Airlines (Canada) Ltd
24 Aug - 07 Sep	Air Transat
31 Aug - 07 Sep	Air Transat
25 Aug - 01 Sep	Avianca
28 Aug - 04 Sep	Porter Airlines (Canada) Ltd
11 Aug - 01 Sep	Avianca
14 Aug - 09 Sep	Air Transat

Also check the deals for one-way flights from Montreal to Philipsburg 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 Philipsburg in August from 431€

Return flights