Book a trip from Seattle to Singapore with Cathay Pacific , fares from USD927

PROMOTION CODE (OPTIONAL)

Fly Cathay Pacific from Seattle (SEA) to Singapore (SIN). 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 Seattle (SEA) to Singapore (SIN)?

Try alternate month or interact with individual days below in order to find offers.
Oct 2026
No results available
Nov 2026
FromUSD963*
Seen 19 minutes ago
Round trip/Economy
Dec 2026
FromUSD1,306*
Seen 1 day ago
Round trip/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label USD963
cmp-daily-histogram-bars-legend-max-price-aria-label USD1.8K
Displaying fares for October-2026
  • SEA–SIN: cmp-view-offers-disclaimer. Find offers
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    NOV

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  • SEA–SIN, 08/11/2026 – 01/12/2026: From USD1,099
    08

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  • SEA–SIN, 09/11/2026 – 01/12/2026: From USD963
    09

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  • SEA–SIN, 10/11/2026 – 01/12/2026: From USD963
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  • SEA–SIN, 11/11/2026 – 01/12/2026: From USD963
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  • SEA–SIN, 12/11/2026 – 01/12/2026: From USD963
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  • SEA–SIN, 13/11/2026 – 01/12/2026: From USD1,055
    13

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  • SEA–SIN, 14/11/2026 – 01/12/2026: From USD1,013
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  • SEA–SIN, 15/11/2026 – 01/12/2026: From USD1,055
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  • SEA–SIN, 16/11/2026 – 01/12/2026: From USD963
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  • SEA–SIN, 17/11/2026 – 01/12/2026: From USD963
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  • SEA–SIN, 18/11/2026 – 01/12/2026: From USD963
    18

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  • SEA–SIN, 19/11/2026 – 01/12/2026: From USD1,056
    19

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  • SEA–SIN, 20/11/2026 – 01/12/2026: From USD1,818
    20

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  • SEA–SIN, 21/11/2026 – 01/12/2026: From USD1,311
    21

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    • RangeUSD963-USD1,818

    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 are subject to regulatory approval.

    Travel Destination Facts

    Destination airport(s)
    • Seletar Airport (XSP)
    • Changi Airport (SIN)
    Aircraft Type

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

    Departure time zone
    GMT-07:00
    Arrival time zone
    GMT+08:00
    Cabin Class

    First class, Business class, Premium Economy, Economy^

    Lowest fare month
    March
    *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 Seattle (SEA) to Singapore (SIN)

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

    USD
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    Explore flight fares from Seattle (SEA) to Singapore (SIN)
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    To
    Fare Type
    Dates
    Price
    Seattle (SEA)Singapore (SIN)Round-trip
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    Economy    		13/01/2027 - 25/01/2027

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    USD927

    Seen 10 hours ago

    Seattle (SEA)Singapore (SIN)Round-trip
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    Economy    		18/01/2027 - 25/01/2027

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    USD927

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    Seattle (SEA)Singapore (SIN)Round-trip
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    Economy    		21/01/2027 - 25/01/2027

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    USD927

    Seen 10 hours ago

    Seattle (SEA)Singapore (SIN)Round-trip
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    Economy    		11/01/2027 - 25/01/2027

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    USD927

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    Seattle (SEA)Singapore (SIN)Round-trip
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    Economy    		12/01/2027 - 25/01/2027

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    USD927

    Seen 10 hours ago

    Seattle (SEA)Singapore (SIN)Round-trip
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    Economy    		14/01/2027 - 25/01/2027

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    USD927

    Seen 10 hours ago

    Seattle (SEA)Singapore (SIN)Round-trip
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    Economy    		19/01/2027 - 25/01/2027

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    USD927

    Seen 10 hours ago

    Seattle (SEA)Singapore (SIN)Round-trip
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    Economy    		20/01/2027 - 25/01/2027

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    USD927

    Seen 10 hours ago

    Seattle (SEA)Singapore (SIN)Round-trip
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    Economy    		18/11/2026 - 01/12/2026

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    USD963

    Seen 19 minutes ago

    Seattle (SEA)Singapore (SIN)Round-trip
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    Economy    		09/11/2026 - 01/12/2026

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    USD963

    Seen 19 minutes ago

    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 are subject to regulatory approval.

    Book Business Class flights to Singapore - 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 are subject to regulatory approval.