AirHint found the following cheapest return flights from Washington (IAD) to Philipsburg (SXM) in December 2025 (see full year).

Return flights

20 Dec - 27 Dec	Frontier Airlines
21 Dec - 24 Dec	United	direct
15 Dec - 19 Dec	Air Canada
11 Dec - 14 Dec	Frontier Airlines
16 Dec - 20 Dec	Delta
18 Dec - 22 Dec	Delta
13 Dec - 20 Dec	Delta
10 Dec - 17 Dec	Air Canada
20 Dec - 24 Dec	United	direct
20 Dec - 27 Dec	United	direct
31 Dec - 05 Jan	Frontier Airlines
31 Dec - 05 Jan	United	direct

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

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 Washington to Philipsburg in December from 525€

Return flights