AirHint found the following cheapest return flights from Washington (DCA) to Sydney (SYD) in November 2025 (see full year).

Return flights

21 Nov - 05 Dec	Air New Zealand
20 Nov - 27 Nov	Hawaiian Airlines
20 Nov - 06 Dec	Fiji Airways
01 Nov - 12 Nov	Alaska Airlines
10 Nov - 24 Nov	Alaska Airlines
14 Nov - 10 Dec	Alaska Airlines
21 Nov - 07 Dec	Air New Zealand
30 Nov - 16 Dec	American Airlines
09 Nov - 23 Nov	Qantas
22 Nov - 04 Dec	Fiji Airways
15 Nov - 18 Nov	Alaska Airlines
29 Nov - 16 Dec	American Airlines
22 Nov - 05 Dec	Fiji Airways
22 Nov - 29 Nov	United

Also check the deals for one-way flights from Washington to Sydney in November.

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 Sydney in November from $1409

Return flights