Cheapest one-way flights from Seattle to Sydney in February from $466

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 February 2025 (see full year).

One-Way flights

15 Feb Alaska Airlines
10 Feb Alaska Airlines
03 Feb Alaska Airlines
21 Feb Alaska Airlines

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

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.

Book a cheap hotel in Sydney

Cheap car rent in Sydney