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

Return flights

03 Dec - 07 Dec	Avianca
13 Dec - 20 Dec	United
12 Dec - 14 Dec	United	direct
18 Dec - 30 Dec	Frontier Airlines
17 Dec - 22 Dec	United	direct
19 Dec - 23 Dec	Frontier Airlines
24 Dec - 28 Dec	Frontier Airlines
18 Dec - 30 Dec	United	direct
24 Dec - 28 Dec	United	direct
23 Dec - 28 Dec	United
28 Dec - 04 Jan	Frontier Airlines
28 Dec - 02 Jan	Frontier Airlines

Also check the deals for one-way flights from Washington to Oranjestad 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 Oranjestad in December from $391

Return flights