Book a trip from Seattle to Phnom Penh with Cathay Pacific , fares from USD923

DISCOUNT CODE (OPTIONAL)

Fly Cathay Pacific from Seattle (SEA) to Phnom Penh (KTI). 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 Seattle (SEA) to Phnom Penh (KTI) flights

Mar 2026
FromUSD1,392*
Seen 1 day ago
Round trip/Economy
Apr 2026
FromUSD1,003*
Seen 14 hours ago
Round trip/Economy
May 2026
No results available
USD1.3K
Displaying fares for March-2026
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    • RangeUSD1,309-USD1,527

    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 Phnom Penh KTI

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    Book flights to Phnom Penh KTI
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)Phnom Penh (KTI)Round-trip
    /
    Economy    		27/04/2026 - 11/05/2026

    From

    USD1,003

    Seen 14 hours ago

    Seattle (SEA)Phnom Penh (KTI)Round-trip
    /
    Economy    		30/04/2026 - 19/05/2026

    From

    USD1,051

    Seen 15 hours ago

    Seattle (SEA)Phnom Penh (KTI)Round-trip
    /
    Economy    		08/04/2026 - 08/05/2026

    From

    USD1,309

    Seen 6 hours ago

    Seattle (SEA)Phnom Penh (KTI)Round-trip
    /
    Economy    		03/08/2026 - 21/08/2026

    From

    USD1,452

    Seen 1 day ago

    Seattle (SEA)Phnom Penh (KTI)Round-trip
    /
    Economy    		31/03/2026 - 12/05/2026

    From

    USD1,392

    Seen 1 day ago

    Book Business Class flights to Phnom Penh - 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.