Book a trip from Perth to Seattle with Cathay Pacific , fares from AUD5,145

DISCOUNT CODE (OPTIONAL)

Fly Cathay Pacific from Perth (PER) to Seattle (SEA). Enjoy award-winning service, entertainment, and an enhanced menu for Premium Economy and Business Class during your flight. Book direct to secure our best fare and join as a Cathay Pacific Member to earn Status Points or Miles.

Deals on Perth (PER) to Seattle (SEA) flights

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Mar 2026
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Apr 2026
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May 2026
FromAUD5,175*
Seen 50 minutes ago
Round trip/Economy
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    • Best fares on flights found by others in the last 48 hours. (Please note that some fares may only apply when there are multiple travellers.)

    Book flights to Seattle SEA

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    Book flights to Seattle SEA
    From
    To
    Fare Type
    Dates
    Price
    Perth (PER)Seattle (SEA)Round-trip
    /
    Economy    		03/05/2026 - 16/05/2026

    From

    AUD5,175

    Seen 50 minutes ago

    Perth (PER)Seattle (SEA)Round-trip
    /
    Economy    		17/06/2026 - 14/07/2026

    From

    AUD5,145

    Seen 1 day ago

    Book Business Class flights to Seattle - selected offers

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    All fares displayed include taxes and carrier-imposed surcharges. All fares, government taxes and fees, and surcharges are subject to change at any time. For ticket cancellations, where applicable, the Hong Kong Passenger Security Charge, the Hong Kong Air Passenger Departure Tax, and the Hong Kong International Airport Construction Fee will be refunded without any administration fees.