Cheapest one-way IAD–SXM flights, September

AirHint found the following cheapest one-way flights from Washington (IAD) to Philipsburg (SXM) in September 2026 (see full year).

One-Way flights

25 Sep United
18 Sep United
19 Sep United
11 Sep United
12 Sep United

Also check the deals for return flights from Washington to Philipsburg in September.

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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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