Alaska Airlines Cheap Flights from Seattle to Australia
Deals on one-way flights from Seattle to Australia.*
Seattle (SEA)to
Sydney (SYD)Seattle (SEA)to
Sydney (SYD)Seattle (SEA)to
Sydney (SYD)Seattle (SEA)to
Sydney (SYD)Seattle (SEA)to
Sydney (SYD)*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.
One-way low-fare flights Seattle to Australia.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Seattle (SEA) | Sydney (SYD) | One-way | Saver | Depart: Sep 20, 2025 | From $492 Seen: 4 hours ago | |
| Seattle (SEA) | Sydney (SYD) | One-way | Saver | Depart: Sep 23, 2025 | From $492 Seen: 4 hours ago | |
| Seattle (SEA) | Sydney (SYD) | One-way | Saver | Depart: Sep 24, 2025 | From $492 Seen: 4 hours ago | |
| Seattle (SEA) | Sydney (SYD) | One-way | Saver | Depart: Sep 27, 2025 | From $492 Seen: 4 hours ago | |
| Seattle (SEA) | Sydney (SYD) | One-way | Saver | Depart: Oct 14, 2025 | From $492 Seen: 4 hours ago | |
| Seattle (SEA) | Sydney (SYD) | One-way | Saver | Depart: Oct 21, 2025 | From $492 Seen: 4 hours ago |
*Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.
Popular Seattle to Australia routes
- Flight from Los Angeles to Australia
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- Flight from San Francisco to Australia
- Flight from Las Vegas to Australia
- Flight from San Jose to Australia
- Flight from Phoenix to Australia
- Flight from Oakland to Australia
- Flight from San Diego to Australia
- Flight from Ontario to Australia
- Flight from Sacramento to Australia
- Flight from Salt Lake City to Australia
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