Cheapest return flights from Seattle to Sydney in February from $906

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

Return flights

01 Feb - 10 Feb Frontier Airlines
20 Feb - 26 Feb Qantas
26 Feb - 10 Mar Frontier Airlines
01 Feb - 15 Feb Frontier Airlines
25 Feb - 10 Mar Hawaiian Airlines
02 Feb - 18 Feb Qantas
26 Feb - 09 Mar Frontier Airlines
17 Feb - 23 Feb Air Canada
11 Feb - 24 Feb Air Canada
15 Feb - 21 Feb Air Canada
06 Feb - 22 Feb Air Canada
14 Feb - 21 Feb Air Canada

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

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