AirHint found the following cheapest return flights from Washington (DCA) to Sydney (SYD) in January 2026 (see full year).
Return flights
| 20 Jan - 04 Feb | Qantas | ||
| 21 Jan - 04 Feb | Qantas | ||
| 19 Jan - 27 Jan | Qantas | ||
| 01 Jan - 19 Jan | Qantas | ||
| 14 Jan - 22 Jan | American Airlines | ||
| 05 Jan - 19 Jan | Hawaiian Airlines | ||
| 08 Jan - 28 Jan | Qantas |
Also check the deals for one-way flights from Washington to Sydney in January.
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