Cheapest return flights from Washington to Philipsburg in April from $397

AirHint found the following cheapest return flights from Washington (IAD) to Philipsburg (SXM) in April 2026 (see full year).

Return flights

02 Apr - 06 Apr Air Canada
02 Apr - 07 Apr Air Canada
01 Apr - 06 Apr Air Canada
03 Apr - 07 Apr Frontier Airlines
09 Apr - 13 Apr Air Canada
06 Apr - 13 Apr Air Canada
22 Apr - 27 Apr Frontier Airlines
08 Apr - 15 Apr Frontier Airlines
24 Apr - 27 Apr Air Canada
08 Apr - 15 Apr United direct
29 Apr - 03 May Copa
26 Apr - 02 May American Airlines

Also check the deals for one-way flights from Washington to Philipsburg in April.

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