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Seattle-Tacoma International Airport to Singapore Changi Airport flight

Search for flights from Seattle to Singapore and check out affordable one-way and round-trip options.

      • Cheapest nonstop
        SEA 10:15
        16h 20m
        Direct
        SIN 17:35
        Seattle - Singapore | Thu, Aug 6 | Singapore Airlines
        SIN 09:00
        14h 45m
        Direct
        SEA 08:45
        Singapore - Seattle | Tue, Aug 11 | Singapore Airlines
        S$ 1,736 S$ 2,086
        17% off
        17% off
        S$ 2,086 S$ 1,736
      • SEA 10:15
        16h 20m
        Direct
        SIN 17:35
        Seattle - Singapore | Tue, Jul 21 | Singapore Airlines
        SIN 09:00
        14h 45m
        Direct
        SEA 08:45
        Singapore - Seattle | Thu, Jul 23 | Singapore Airlines
        S$ 1,752 S$ 2,086
        16% off
        16% off
        S$ 2,086 S$ 1,752
      • SEA 13:25
        19h 55m
        1 stop
        SIN 00:20
        Seattle - Singapore | Wed, Aug 5 | Japan Airlines
        SIN 07:00
        26h 32m
        1 stop
        SEA 18:32
        Singapore - Seattle | Mon, Aug 10 | Air Canada
        S$ 1,258 S$ 2,086
        40% off
        40% off
        S$ 2,086 S$ 1,258
      • SEA 13:25
        19h 55m
        1 stop
        SIN 00:20
        Seattle - Singapore | Sun, Aug 2 | Japan Airlines
        SIN 07:00
        18h 7m
        1 stop
        SEA 10:07
        Singapore - Seattle | Sat, Aug 8 | Air Canada
        S$ 1,258
        40% off
        S$ 2,086 S$ 1,258
      • SEA 13:25
        19h 55m
        1 stop
        SIN 00:20
        Seattle - Singapore | Mon, Aug 3 | Japan Airlines
        SIN 07:00
        26h 32m
        1 stop
        SEA 18:32
        Singapore - Seattle | Mon, Aug 10 | Air Canada
        S$ 1,258
        40% off
        S$ 2,086 S$ 1,258
      • SEA 13:25
        19h 55m
        1 stop
        SIN 00:20
        Seattle - Singapore | Sat, Aug 1 | Japan Airlines
        SIN 07:00
        26h 32m
        1 stop
        SEA 18:32
        Singapore - Seattle | Sat, Aug 8 | Air Canada
        S$ 1,258
        40% off
        S$ 2,086 S$ 1,258
      • SEA 13:20
        19h 35m
        1 stop
        SIN 23:55
        Seattle - Singapore | Fri, Jul 24 | Korean Air
        SIN 07:00
        30h 42m
        1 stop
        SEA 22:42
        Singapore - Seattle | Wed, Jul 29 | Air Canada
        S$ 1,302
        38% off
        S$ 2,086 S$ 1,302
      • SEA 12:50
        25h 10m
        1 stop
        SIN 05:00
        Seattle - Singapore | Sun, Jun 14 | Korean Air
        SIN 07:00
        30h 40m
        1 stop
        SEA 22:40
        Singapore - Seattle | Sat, Jun 20 | Air Canada
        S$ 1,303
        38% off
        S$ 2,086 S$ 1,303
      • SEA 13:20
        24h 40m
        1 stop
        SIN 05:00
        Seattle - Singapore | Sat, Jun 20 | Korean Air
        SIN 07:00
        30h 40m
        1 stop
        SEA 22:40
        Singapore - Seattle | Sat, Jun 27 | Air Canada
        S$ 1,303
        38% off
        S$ 2,086 S$ 1,303
      • SEA 15:00
        23h 15m
        1 stop
        SIN 05:15
        Seattle - Singapore | Sat, Aug 8 | Air Canada
        SIN 03:15
        24h 10m
        1 stop
        SEA 12:25
        Singapore - Seattle | Fri, Aug 14 | Qatar Airways
        S$ 1,310
        37% off
        S$ 2,086 S$ 1,310
      • SEA 00:10
        30h 20m
        1 stop
        SIN 21:30
        Seattle - Singapore | Sat, Jun 20 | Asiana Airlines
        SIN 07:00
        30h 40m
        1 stop
        SEA 22:40
        Singapore - Seattle | Sat, Jun 27 | Air Canada
        S$ 1,314
        37% off
        S$ 2,086 S$ 1,314
      • SEA 13:20
        38h 55m
        1 stop
        SIN 19:15
        Seattle - Singapore | Sat, Jul 18 | Korean Air
        SIN 07:00
        26h 32m
        1 stop
        SEA 18:32
        Singapore - Seattle | Sat, Jul 25 | Air Canada
        S$ 1,320
        37% off
        S$ 2,086 S$ 1,320
      • SEA 13:00
        17h 25m
        1 stop
        SIN 14:00
        Seattle - Singapore | Thu, Jun 11 | Normal Airline
        SIN 15:00
        6h
        Direct
        SEA 16:00
        Singapore - Seattle | Sat, Jun 13 | Normal Airline
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      • Cheapest nonstop
        SEA 10:15
        16h 20m
        Direct
        SIN 17:35
        Seattle - Singapore | Thu, Aug 6 | Singapore Airlines
        S$ 351 S$ 658
        47% off
        47% off
        S$ 658 S$ 351
      • SEA 23:10
        33h 25m
        1 stop
        SIN 23:35
        Seattle - Singapore | Thu, Aug 6 | Philippine Airlines
        S$ 401 S$ 658
        39% off
        39% off
        S$ 658 S$ 401
      • SEA 00:10
        30h 20m
        1 stop
        SIN 21:30
        Seattle - Singapore | Wed, Jul 22 | Asiana Airlines
        S$ 510 S$ 658
        22% off
        22% off
        S$ 658 S$ 510
      • SEA 16:30
        23h 10m
        1 stop
        SIN 06:40
        Seattle - Singapore | Tue, Jul 21 | United Airlines
        S$ 510
        22% off
        S$ 658 S$ 510
      • SEA 13:20
        38h 55m
        1 stop
        SIN 19:15
        Seattle - Singapore | Tue, Jul 21 | Korean Air
        S$ 518
        21% off
        S$ 658 S$ 518
      • SEA 00:10
        30h 20m
        1 stop
        SIN 21:30
        Seattle - Singapore | Mon, Jul 20 | Asiana Airlines
        S$ 518
        21% off
        S$ 658 S$ 518
      • SEA 00:10
        30h 20m
        1 stop
        SIN 21:30
        Seattle - Singapore | Mon, Aug 3 | Asiana Airlines
        S$ 525
        20% off
        S$ 658 S$ 525
      • SEA 00:10
        30h 20m
        1 stop
        SIN 21:30
        Seattle - Singapore | Wed, Jul 29 | Asiana Airlines
        S$ 539
        18% off
        S$ 658 S$ 539
      • SEA 16:30
        33h 45m
        1 stop
        SIN 17:15
        Seattle - Singapore | Tue, Jul 21 | All Nippon Airways
        S$ 545
        17% off
        S$ 658 S$ 545
      • SEA 00:10
        30h 20m
        1 stop
        SIN 21:30
        Seattle - Singapore | Sun, Jul 19 | Asiana Airlines
        S$ 552
        16% off
        S$ 658 S$ 552
      • SEA 13:00
        17h 25m
        1 stop
        SIN 14:00
        Seattle - Singapore | Thu, Jun 11 | Normal Airline
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Flight prices from Seattle-Tacoma International Airport to Singapore Changi Airport are based on the average fares across airlines for the next three months, based on Trip.com’s latest data.

Trip.com Price Insights: Flights from Seattle-Tacoma International Airport to Singapore Changi Airport

Which month has the cheapest one-way flights from Seattle-Tacoma International Airport to Singapore Changi Airport?

The data is based on Trip.com data from the past 12 months and shows the average one-way fares by month from Seattle-Tacoma International Airport to Singapore Changi Airport.

Based on Trip.com data from the past 12 months, the cheapest one-way flights from Seattle-Tacoma International Airport to Singapore Changi Airport are usually in April, with an average price of S$ 425. June sees the highest fares, around S$ 1,810.

S$ 1,810
S$ 1,118
S$ 425
0
    Cheapest
  • S$ 1,810
    Jun
  • S$ 994
    Jul
  • S$ 675
    Aug
  • S$ 627
    Sep
  • S$ 655
    Oct
  • S$ 649
    Nov
  • S$ 1,076
    Dec
  • S$ 626
    Jan
  • S$ 698
    Feb
  • S$ 593
    Mar
  • S$ 425
    Apr
  • S$ 641
    May

Which day of the week has the cheapest flights from Seattle-Tacoma International Airport to Singapore Changi Airport?

The data is based on Trip.com data from the past 12 months and shows the average fares by each day of the week from Seattle-Tacoma International Airport to Singapore Changi Airport.

Based on Trip.com data from the past 12 months, the cheapest day for flights from Seattle-Tacoma International Airport to Singapore Changi Airport is Sunday, with average prices lower than other days. Try to avoid departing on Wednesday, as fares are typically the highest.

S$ 897
S$ 728
S$ 558
S$ 389
    Cheapest
  • S$ 852
    Mon
  • S$ 684
    Tue
  • S$ 897
    Wed
  • S$ 569
    Thu
  • S$ 702
    Fri
  • S$ 776
    Sat
  • S$ 558
    Sun

Selected Airlines from Seattle-Tacoma International Airport to Singapore Changi Airport

See which airlines fly from Seattle to Singapore. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.

Singapore Airlines
From S$ 395
United Airlines
From S$ 423
All Nippon Airways
From S$ 447
Alaska Airlines
From S$ 520
Asiana Airlines
From S$ 525
Delta Air Lines
From S$ 557
Korean Air
From S$ 577
Japan Airlines
From S$ 620
Air Canada
From S$ 623
American Airlines
From S$ 654

Find more flights and airlines

Flight Schedule from Seattle-Tacoma International Airport to Singapore Changi Airport

Check the schedule for flights from Seattle to Singapore and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. SQ027

    Seattle-Tacoma International Airport

    08:45

    SEA

    17h

    17:45

    SIN

    - M - W T F S
    Search

  2. NH117

    Seattle-Tacoma International Airport

    16:30

    SEA

    10h 30m

    Direct

    19:00

    HND

    S M T W T F S
    Search

  3. NH843

    Haneda Airport

    00:40

    HND

    7h

    Direct

    06:40

    SIN

    S M T W T F S

  4. UA7929

    Seattle-Tacoma International Airport

    16:30

    SEA

    10h 30m

    Direct

    19:00

    HND

    S M T W T F S
    Search

  5. UA7991

    Haneda Airport

    00:40

    HND

    7h

    Direct

    06:40

    SIN

    S M T W T F S

  6. PR125

    Seattle-Tacoma International Airport

    23:55

    SEA

    13h 30m

    Direct

    04:25

    MNL

    - M T W T - S
    Search

  7. PR501

    Ninoy Aquino International Airport

    15:50

    MNL

    3h 40m

    Direct

    19:30

    SIN

    S M T - - F S

  8. OZ271

    Seattle-Tacoma International Airport

    00:55

    SEA

    12h 20m

    Direct

    05:15

    ICN

    S M T - T F -
    Search

  9. OZ751

    Incheon International Airport

    16:10

    ICN

    6h 20m

    Direct

    21:30

    SIN

    S M T W T F S

  10. UA2831

    Seattle-Tacoma International Airport

    08:45

    SEA

    2h 18m

    Direct

    11:03

    SFO

    S M T W T F S
    Search

  11. UA001

    San Francisco International Airport

    22:40

    SFO

    17h 5m

    Direct

    06:45

    SIN

    S M T W T F S

  12. AS411

    Seattle-Tacoma International Airport

    21:39

    SEA

    2h 20m

    Direct

    23:59

    SFO

    S M T - T - S
    Search

  13. SQ031

    San Francisco International Airport

    11:45

    SFO

    16h 25m

    Direct

    19:10

    SIN

    S M T W T F S

  14. AC8801

    Seattle-Tacoma International Airport

    05:40

    SEA

    1h 7m

    Direct

    06:47

    YVR

    S M T W T F S
    Search

  15. AC019

    Vancouver International Airport

    22:10

    YVR

    16h 5m

    Direct

    05:15

    SIN

    - M - W T - S

  16. PR125

    Seattle-Tacoma International Airport

    23:55

    SEA

    13h 30m

    Direct

    04:25

    MNL

    - M T W T - S
    Search

  17. PR509

    Ninoy Aquino International Airport

    19:30

    MNL

    3h 40m

    Direct

    23:10

    SIN

    S - T W T F S

  18. NH117

    Seattle-Tacoma International Airport

    16:30

    SEA

    10h 30m

    Direct

    19:00

    HND

    S M T W T F S
    Search

  19. NH841

    Haneda Airport

    10:55

    HND

    7h 20m

    Direct

    17:15

    SIN

    S M T W T F S
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Seattle-Tacoma International Airport to Singapore Changi Airport Flights Info

Flight distance12,993.6km
Cheapest one-way ticket priceS$ 351
Cheapest return ticket priceS$ 1,258

FAQs for Seattle-Tacoma International Airport to Singapore Changi Airport Flights

  • How long is a flight from Seattle-Tacoma International Airport (SEA) to Singapore Changi Airport (SIN)?

    It takes around 16 hours 20 minutes to fly from Seattle-Tacoma International Airport (sea) to Singapore Changi Airport (sin).
  • There are around 1 daily flights from Seattle-Tacoma International Airport (SEA) to Singapore Changi Airport (SIN).
  • Tickets cost around S$ 966 in September, making it the cheapest month to book. Seattle-Tacoma International Airport (SEA) to Singapore Changi Airport (SIN) is a popular route, so don't forget to book your tickets in advance.
  • The route from Seattle-Tacoma International Airport (SEA) to Singapore Changi Airport (SIN) is quite popular. Without considering departure times or holidays, tickets cost around S$ 2,000 in July, the most expensive month to book this route.
  • The earliest flight departs from Seattle-Tacoma International Airport (SEA) at 08:45 and arrives in Singapore Changi Airport (SIN) at 17:45.
    • The distance from Singapore Changi Airport to downtown is about 17km, by taxi about 30 minutes.
    • The distance from Seletar Airport to downtown is about 15km, by taxi about 30 minutes.
  • Singapore Airlines is a very popular airline operating an average of 582 flights per month.

Popular Destinations & Recommendations

Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.