AirHint found the following cheapest return flights from Washington (DCA) to Sydney (SYD) in February 2026 (see full year).

Return flights

18 Feb - 11 Mar	Delta
11 Feb - 04 Mar	Alaska Airlines
05 Feb - 13 Feb	Qantas
24 Feb - 17 Mar	Alaska Airlines
03 Feb - 17 Feb	Qantas
04 Feb - 18 Feb	Alaska Airlines
10 Feb - 03 Mar	Qantas
05 Feb - 08 Mar	Qantas
11 Feb - 25 Feb	Alaska Airlines
10 Feb - 24 Feb	Qantas
20 Feb - 26 Feb	Alaska Airlines
16 Feb - 23 Feb	Qantas
25 Feb - 18 Mar	Hawaiian Airlines
17 Feb - 10 Mar	Fiji Airways
08 Feb - 14 Feb	Air Canada
08 Feb - 26 Feb	Air Canada

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

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 February from 733€

Return flights