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

Return flights

18 Oct - 23 Oct	Frontier Airlines
11 Oct - 18 Oct	Frontier Airlines
15 Oct - 20 Oct	Avianca
08 Oct - 15 Oct	Avianca
14 Oct - 19 Oct	Avianca
16 Oct - 20 Oct	Avianca
29 Oct - 12 Nov	United
30 Oct - 13 Nov	United	direct
08 Oct - 22 Oct	United
15 Oct - 29 Oct	United
07 Oct - 21 Oct	United
09 Oct - 17 Oct	Avianca
26 Oct - 09 Nov	United	direct
22 Oct - 05 Nov	United
21 Oct - 04 Nov	United
18 Oct - 01 Nov	United
24 Oct - 07 Nov	United
23 Oct - 06 Nov	United

Also check the deals for one-way flights from Washington to Oranjestad in October.

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 October from $347

Return flights