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Cheapest one-way flights from Ontario (ONT) to Philipsburg (SXM), September

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Dates, airline, and price
Dates	Airline	Price
16 Sep	Southwest Airlines
18 Sep	Southwest Airlines
11 Sep	Southwest Airlines
17 Sep	Southwest Airlines
12 Sep	Southwest Airlines

deals for return flights from Ontario to Philipsburg in September.

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Updated Jul 14, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Ontario (ONT) to Philipsburg (SXM), September

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