Cheapest one-way flights from Seattle to Sydney in December from $652

Best time to book flights for Seattle (SEA) to Sydney (SYD) flights at AirHint

AirHint found the following cheapest one-way flights from Seattle (SEA) to Sydney (SYD) in December 2024 (see full year).

One-Way flights

26 Dec Lufthansa
22 Dec United

Also check the deals for return flights from Seattle to Sydney in December.

Skyscanner

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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