AirHint found the following cheapest one-way flights from Washington (DCA) to Sydney (SYD) in November 2025 (see full year).
One-Way flights
| 14 Nov | Frontier Airlines | ||
| 10 Nov | Alaska Airlines | ||
| 13 Nov | Frontier Airlines | ||
| 29 Nov | Qantas | ||
| 12 Nov | Qantas |
Also check the deals for return flights from Washington to Sydney in November.
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