Book a trip from Seattle to Singapore with Cathay Pacific , fares from USD1,005

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)?

Aug 2026
FromUSD1,110*
Seen 1 day ago
Round trip/Economy
Sep 2026
FromUSD1,015*
Seen 44 minutes ago
Round trip/Economy
Oct 2026
FromUSD2,703*
Seen 44 minutes ago
Round trip/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label USD1.0K
cmp-daily-histogram-bars-legend-max-price-aria-label USD2.7K
Displaying fares for August-2026
  • SEA–SIN: cmp-view-offers-disclaimer. Find offers
    27

    Thu

    AUG

  • SEA–SIN: cmp-view-offers-disclaimer. Find offers
    28

    Fri

  • SEA–SIN: cmp-view-offers-disclaimer. Find offers
    29

    Sat

  • SEA–SIN, 30/08/2026 – 12/09/2026: From USD1,154
    30

    Sun

  • SEA–SIN, 31/08/2026 – 12/09/2026: From USD1,110
    31

    Mon

  • SEA–SIN, 01/09/2026 – 12/09/2026: From USD1,110
    01

    Tue

    SEP

  • SEA–SIN, 02/09/2026 – 12/09/2026: From USD1,110
    02

    Wed

  • SEA–SIN, 03/09/2026 – 12/09/2026: From USD1,110
    03

    Thu

  • SEA–SIN, 04/09/2026 – 12/09/2026: From USD1,249
    04

    Fri

  • SEA–SIN, 05/09/2026 – 12/09/2026: From USD1,160
    05

    Sat

  • SEA–SIN, 06/09/2026 – 12/09/2026: From USD1,154
    06

    Sun

  • SEA–SIN, 07/09/2026 – 12/09/2026: From USD1,110
    07

    Mon

  • SEA–SIN, 08/09/2026 – 12/09/2026: From USD1,110
    08

    Tue

  • SEA–SIN, 09/09/2026 – 12/09/2026: From USD2,703
    09

    Wed

  • SEA–SIN, 10/09/2026 – 12/09/2026: From USD2,703
    10

    Thu

  • SEA–SIN: cmp-view-offers-disclaimer. Find offers
    11

    Fri

  • SEA–SIN: cmp-view-offers-disclaimer. Find offers
    12

    Sat

  • SEA–SIN: cmp-view-offers-disclaimer. Find offers
    13

    Sun

  • SEA–SIN: cmp-view-offers-disclaimer. Find offers
    14

    Mon

  • SEA–SIN: cmp-view-offers-disclaimer. Find offers
    15

    Tue

  • SEA–SIN: cmp-view-offers-disclaimer. Find offers
    16

    Wed

  • SEA–SIN: cmp-view-offers-disclaimer. Find offers
    17

    Thu

  • SEA–SIN: cmp-view-offers-disclaimer. Find offers
    18

    Fri

  • SEA–SIN: cmp-view-offers-disclaimer. Find offers
    19

    Sat

  • SEA–SIN, 20/09/2026 – 03/10/2026: From USD1,060
    20

    Sun

  • SEA–SIN, 21/09/2026 – 03/10/2026: From USD1,015
    21

    Mon

  • SEA–SIN, 22/09/2026 – 03/10/2026: From USD1,015
    22

    Tue

  • SEA–SIN, 23/09/2026 – 03/10/2026: From USD1,015
    23

    Wed

  • SEA–SIN, 24/09/2026 – 03/10/2026: From USD1,015
    24

    Thu

  • SEA–SIN, 25/09/2026 – 03/10/2026: From USD1,154
    25

    Fri

  • SEA–SIN, 26/09/2026 – 03/10/2026: From USD1,065
    26

    Sat

    • RangeUSD1,015-USD2,703

    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)
    • 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
    May
    *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)
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)Singapore (SIN)Round-trip
    /
    Economy    		24/09/2026 - 03/10/2026

    From

    USD1,015

    Seen 44 minutes ago

    Seattle (SEA)Singapore (SIN)Round-trip
    /
    Economy    		21/09/2026 - 03/10/2026

    From

    USD1,015

    Seen 44 minutes ago

    Seattle (SEA)Singapore (SIN)Round-trip
    /
    Economy    		22/09/2026 - 03/10/2026

    From

    USD1,015

    Seen 44 minutes ago

    Seattle (SEA)Singapore (SIN)Round-trip
    /
    Economy    		23/09/2026 - 03/10/2026

    From

    USD1,015

    Seen 44 minutes ago

    Seattle (SEA)Singapore (SIN)Round-trip
    /
    Economy    		20/09/2026 - 03/10/2026

    From

    USD1,060

    Seen 44 minutes ago

    Seattle (SEA)Singapore (SIN)Round-trip
    /
    Economy    		27/09/2026 - 03/10/2026

    From

    USD1,060

    Seen 44 minutes ago

    Seattle (SEA)Singapore (SIN)Round-trip
    /
    Economy    		28/09/2026 - 03/10/2026

    From

    USD1,060

    Seen 44 minutes ago

    Seattle (SEA)Singapore (SIN)Round-trip
    /
    Economy    		05/01/2027 - 31/01/2027

    From

    USD1,005

    Seen 1 day ago

    Seattle (SEA)Singapore (SIN)Round-trip
    /
    Economy    		06/01/2027 - 31/01/2027

    From

    USD1,005

    Seen 1 day ago

    Seattle (SEA)Singapore (SIN)Round-trip
    /
    Economy    		04/01/2027 - 31/01/2027

    From

    USD1,054

    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 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.