Book a trip from Hanoi to Seattle with Cathay Pacific , fares from USD885

PROMOTION CODE (OPTIONAL)

Fly Cathay Pacific from Hanoi (HAN) 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 member to earn Status Points or Miles.

When is the best time to fly from Hanoi (HAN) to Seattle (SEA)?

Sep 2026
FromUSD885*
Seen 1 day ago
Round trip/Economy
Oct 2026
No results available
Nov 2026
No results available
cmp-daily-histogram-bars-legend-min-price-aria-label USD885
cmp-daily-histogram-bars-legend-max-price-aria-label USD1.6K
Displaying fares for September-2026
  • HAN–SEA: cmp-view-offers-disclaimer. Find offers
    13

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    SEP

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  • HAN–SEA, 15/09/2026 – 26/09/2026: From USD885
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  • HAN–SEA, 16/09/2026 – 26/09/2026: From USD885
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  • HAN–SEA, 17/09/2026 – 26/09/2026: From USD1,020
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  • HAN–SEA, 18/09/2026 – 26/09/2026: From USD885
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  • HAN–SEA, 19/09/2026 – 26/09/2026: From USD1,020
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  • HAN–SEA, 20/09/2026 – 26/09/2026: From USD885
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  • HAN–SEA, 21/09/2026 – 26/09/2026: From USD885
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  • HAN–SEA, 22/09/2026 – 26/09/2026: From USD885
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  • HAN–SEA, 23/09/2026 – 26/09/2026: From USD885
    23

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  • HAN–SEA, 24/09/2026 – 26/09/2026: From USD1,550
    24

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    OCT

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    • RangeUSD885-USD1,550

    Lowest fares on flights found by other customers on Cathay Pacific’s official website in the last 48 hours. All fares are subject to change at any time. Other Cathay Pacific Terms & Conditions apply.

    Travel Destination Facts

    Destination airport(s)
    • Boeing Field (BFI)
    • Kenmore Air Harbor Seaplane Base (LKE)
    • Seattle/Tacoma International Airport (SEA)
    • Paine Field Airport (PAE)
    Aircraft Type

    Boeing 777, Airbus A321neo, Airbus A330 and Airbus A350 aircraft*

    Departure time zone
    GMT+07:00
    Arrival time zone
    GMT-07:00
    Cabin Class

    First class, Business class, Premium Economy, Economy^

    Lowest fare month
    February
    *Aircraft model may vary due to operational requirements. ^Cabin class availability is subject to aircraft configuration. Lowest fare month for flights found by other customers on Cathay Pacific’s official website in the last 48 hours. All fares are subject to change at any time. Other Cathay Pacific Terms & Conditions apply.

    Explore flight fares from Hanoi (HAN) to Seattle (SEA)

    Make flexible bookings with Cathay Pacific and enjoy hassle-free travel when plans change.

    USD
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    Explore flight fares from Hanoi (HAN) to Seattle (SEA)
    From
    To
    Fare Type
    Dates
    Price
    Hanoi (HAN)Seattle (SEA)Round-trip
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    Economy    		15/09/2026 - 26/09/2026

    From

    USD885

    Seen 1 day ago

    Hanoi (HAN)Seattle (SEA)Round-trip
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    Economy    		18/09/2026 - 26/09/2026

    From

    USD885

    Seen 1 day ago

    Hanoi (HAN)Seattle (SEA)Round-trip
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    Economy    		20/09/2026 - 26/09/2026

    From

    USD885

    Seen 1 day ago

    Hanoi (HAN)Seattle (SEA)Round-trip
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    Economy    		23/09/2026 - 26/09/2026

    From

    USD885

    Seen 1 day ago

    Hanoi (HAN)Seattle (SEA)Round-trip
    /
    Economy    		21/09/2026 - 26/09/2026

    From

    USD885

    Seen 1 day ago

    Hanoi (HAN)Seattle (SEA)Round-trip
    /
    Economy    		16/09/2026 - 26/09/2026

    From

    USD885

    Seen 1 day ago

    Hanoi (HAN)Seattle (SEA)Round-trip
    /
    Economy    		22/09/2026 - 26/09/2026

    From

    USD885

    Seen 1 day ago

    Hanoi (HAN)Seattle (SEA)Round-trip
    /
    Economy    		17/09/2026 - 26/09/2026

    From

    USD1,020

    Seen 1 day ago

    Hanoi (HAN)Seattle (SEA)Round-trip
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    Economy    		19/09/2026 - 26/09/2026

    From

    USD1,020

    Seen 1 day ago

    Hanoi (HAN)Seattle (SEA)Round-trip
    /
    Economy    		24/09/2026 - 26/09/2026

    From

    USD1,550

    Seen 1 day ago

    Lowest fares on round-trip flights found by other customers on Cathay Pacific’s official website in the last 48 hours. All fares are subject to change at any time. Other Cathay Pacific Terms & Conditions apply.

    Book Business Class flights to Seattle - selected offers

    Experience refined comfort in our award-winning Business class.

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    Lowest fares on flights found by other customers on Cathay Pacific’s official website in the last 48 hours. All fares are subject to change at any time. Other Cathay Pacific Terms & Conditions apply.

    Flights from Hanoi HAN to Seattle SEA

    Seattle is the Pacific Northwest’s hub of innovation, culture and business. It’s also surrounded by an abundance of natural beauty including evergreen trees and spectacular mountain views.

    Best of Seattle

    Eat your way through the iconic Pike Place Market. Stroll through Post Alley and stop by the Gum Wall (or even add your own). Venture towards the Seattle Waterfront and take a ride on the Seattle Great Wheel or visit the Seattle Aquarium. Catch the Bainbridge Island Ferry and experience scenic city views from the sea. Take in the gorgeous views at the Space Needle. Explore Seattle’s largest park, Discovery Park. Lunch in vibrant Capitol Hill and grab a coffee at Starbucks Reserve Roastery.

    Seattle travel tips

    Seattle is quite easy to get around. From the various public transport options including the Link Light Rail, King County Metro Transit, Seattle Streetcars, Seattle Center Monorail to the many neighbourhoods made for walking.