Alaska Airlines Flights from Seattle to Sydney

Lowest fares from Seattle to Sydney

Jul 2026
From$580*
Seen: 19 hours ago
Flight Type One Way|Saver
Aug 2026
From$580*
Seen: 19 hours ago
Flight Type One Way|Saver
Sep 2026
From$580*
Seen: 19 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $580
cmp-daily-histogram-bars-legend-max-price-aria-label $1.7K
Displaying fares for July-2026
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    • Range$580-$1,650

    *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 Sydney.*

    $
    keyboard_arrow_down
    One-way low-fare flights Seattle to Sydney.*
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)Sydney (SYD)One-way
    |
    Saver    		Depart: Oct 18, 2026

    From

    $580

    Seen: 19 hours ago

    Seattle (SEA)Sydney (SYD)One-way
    |
    Saver    		Depart: Oct 19, 2026

    From

    $580

    Seen: 19 hours ago

    Seattle (SEA)Sydney (SYD)One-way
    |
    Saver    		Depart: Oct 20, 2026

    From

    $580

    Seen: 19 hours ago

    Seattle (SEA)Sydney (SYD)One-way
    |
    Saver    		Depart: Oct 21, 2026

    From

    $580

    Seen: 19 hours ago

    Seattle (SEA)Sydney (SYD)One-way
    |
    Saver    		Depart: Dec 30, 2026

    From

    $580

    Seen: 19 hours ago

    Seattle (SEA)Sydney (SYD)One-way
    |
    Saver    		Depart: Jul 27, 2026

    From

    $580

    Seen: 19 hours ago

    Seattle (SEA)Sydney (SYD)One-way
    |
    Saver    		Depart: Aug 18, 2026

    From

    $580

    Seen: 19 hours ago

    Seattle (SEA)Sydney (SYD)One-way
    |
    Saver    		Depart: Aug 26, 2026

    From

    $580

    Seen: 19 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.

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