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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 | Sat, May 9 | Singapore Airlines
        SIN 09:00
        14h 45m
        Direct
        SEA 08:45
        Singapore - Seattle | Sat, May 16 | Singapore Airlines
        US$1,733 US$2,374
        27% off
        27% off
        US$2,374 US$1,733
      • SEA 10:15
        16h 20m
        Direct
        SIN 17:35
        Seattle - Singapore | Sun, May 10 | Singapore Airlines
        SIN 09:00
        14h 45m
        Direct
        SEA 08:45
        Singapore - Seattle | Sat, May 16 | Singapore Airlines
        US$1,733 US$2,374
        27% off
        27% off
        US$2,374 US$1,733
      • SEA 00:55
        29h 35m
        1 stop
        SIN 21:30
        Seattle - Singapore | Mon, May 4 | Asiana Airlines
        SIN 20:35
        30h 50m
        1 stop
        SEA 12:25
        Singapore - Seattle | Mon, May 11 | United Airlines
        US$908 US$2,374
        62% off
        62% off
        US$2,374 US$908
      • SEA 00:55
        29h 35m
        1 stop
        SIN 21:30
        Seattle - Singapore | Wed, May 6 | Asiana Airlines
        SIN 09:00
        24h 32m
        1 stop
        SEA 18:32
        Singapore - Seattle | Tue, May 12 | United Airlines
        US$908
        62% off
        US$2,374 US$908
      • SEA 00:55
        29h 35m
        1 stop
        SIN 21:30
        Seattle - Singapore | Tue, May 5 | Asiana Airlines
        SIN 20:35
        19h 37m
        1 stop
        SEA 01:12
        Singapore - Seattle | Tue, May 12 | United Airlines
        US$931
        61% off
        US$2,374 US$931
      • SEA 19:20
        18h 55m
        1 stop
        SIN 05:15
        Seattle - Singapore | Thu, May 21 | Air Canada
        SIN 07:00
        18h 5m
        1 stop
        SEA 10:05
        Singapore - Seattle | Tue, May 26 | Air Canada
        US$949
        60% off
        US$2,374 US$949
      • SEA 10:45
        27h 30m
        1 stop
        SIN 05:15
        Seattle - Singapore | Sun, May 17 | Air Canada
        SIN 07:00
        22h 20m
        1 stop
        SEA 14:20
        Singapore - Seattle | Thu, May 21 | Air Canada
        US$971
        59% off
        US$2,374 US$971
      • SEA 10:45
        27h 30m
        1 stop
        SIN 05:15
        Seattle - Singapore | Fri, May 15 | Air Canada
        SIN 07:00
        26h 30m
        1 stop
        SEA 18:30
        Singapore - Seattle | Thu, May 21 | Air Canada
        US$971
        59% off
        US$2,374 US$971
      • SEA 10:45
        27h 30m
        1 stop
        SIN 05:15
        Seattle - Singapore | Fri, May 22 | Air Canada
        SIN 07:00
        26h 30m
        1 stop
        SEA 18:30
        Singapore - Seattle | Tue, May 26 | Air Canada
        US$971
        59% off
        US$2,374 US$971
      • SEA 10:45
        27h 30m
        1 stop
        SIN 05:15
        Seattle - Singapore | Tue, May 19 | Air Canada
        SIN 20:35
        30h 59m
        1 stop
        SEA 12:34
        Singapore - Seattle | Mon, May 25 | United Airlines
        US$972
        59% off
        US$2,374 US$972
      • SEA 05:00
        22h 35m
        1 stop
        SIN 18:35
        Seattle - Singapore | Mon, May 4 | United Airlines
        SIN 09:00
        31h 12m
        1 stop
        SEA 01:12
        Singapore - Seattle | Mon, May 11 | United Airlines
        US$975
        59% off
        US$2,374 US$975
      • SEA 05:00
        22h 35m
        1 stop
        SIN 18:35
        Seattle - Singapore | Tue, May 5 | United Airlines
        SIN 09:00
        20h 36m
        1 stop
        SEA 14:36
        Singapore - Seattle | Tue, May 12 | United Airlines
        US$975
        59% off
        US$2,374 US$975
      • SEA 13:00
        17h 25m
        1 stop
        SIN Invalid Date
        Seattle - Singapore | Sun, Apr 26 | Normal Airline
        SIN 15:00
        6h
        Direct
        SEA 16:00
        Singapore - Seattle | Tue, Apr 28 | Normal Airline
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      • Cheapest nonstop
        SEA 10:15
        16h 20m
        Direct
        SIN 17:35
        Seattle - Singapore | Thu, May 7 | Singapore Airlines
        US$262 US$514
        49% off
        49% off
        US$514 US$262
      • SEA 10:15
        16h 20m
        Direct
        SIN 17:35
        Seattle - Singapore | Sat, May 9 | Singapore Airlines
        US$272 US$514
        47% off
        47% off
        US$514 US$272
      • SEA 10:15
        16h 20m
        Direct
        SIN 17:35
        Seattle - Singapore | Sun, May 10 | Singapore Airlines
        US$272 US$514
        47% off
        47% off
        US$514 US$272
      • SEA 10:15
        16h 20m
        Direct
        SIN 17:35
        Seattle - Singapore | Fri, May 22 | Singapore Airlines
        US$274
        47% off
        US$514 US$274
      • SEA 10:15
        16h 20m
        Direct
        SIN 17:35
        Seattle - Singapore | Fri, May 29 | Singapore Airlines
        US$304
        41% off
        US$514 US$304
      • SEA 23:10
        33h 25m
        1 stop
        SIN 23:35
        Seattle - Singapore | Thu, May 7 | Philippine Airlines
        US$299
        42% off
        US$514 US$299
      • SEA 23:10
        33h 25m
        1 stop
        SIN 23:35
        Seattle - Singapore | Sun, May 10 | Philippine Airlines
        US$312
        39% off
        US$514 US$312
      • SEA 08:38
        31h 7m
        1 stop
        SIN 06:45
        Seattle - Singapore | Sat, May 9 | United Airlines
        US$323
        37% off
        US$514 US$323
      • SEA 12:50
        25h 10m
        1 stop
        SIN 05:00
        Seattle - Singapore | Mon, May 4 | Korean Air
        US$372
        28% off
        US$514 US$372
      • SEA 00:55
        29h 35m
        1 stop
        SIN 21:30
        Seattle - Singapore | Fri, May 8 | Asiana Airlines
        US$375
        27% off
        US$514 US$375
      • SEA 13:00
        17h 25m
        1 stop
        SIN Invalid Date
        Seattle - Singapore | Sun, Apr 26 | Normal Airline
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

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 March, with an average price of US$457. June sees the highest fares, around US$1,153.

US$1,153
US$805
US$457
US$109
    Cheapest
  • US$620
    Apr
  • US$880
    May
  • US$1,153
    Jun
  • US$767
    Jul
  • US$520
    Aug
  • US$483
    Sep
  • US$505
    Oct
  • US$500
    Nov
  • US$830
    Dec
  • US$483
    Jan
  • US$538
    Feb
  • US$457
    Mar

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.

US$673
US$588
US$503
US$418
    Cheapest
  • US$654
    Mon
  • US$516
    Tue
  • US$673
    Wed
  • US$611
    Thu
  • US$589
    Fri
  • US$650
    Sat
  • US$503
    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 US$262
Philippine Airlines
From US$299
United Airlines
From US$323
Korean Air
From US$371
Asiana Airlines
From US$375
Delta Air Lines
From US$386
Cathay Pacific
From US$415
Alaska Airlines
From US$418
Air Canada
From US$442
China Airlines
From US$461

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

    09:45

    SEA

    16h 50m

    17:35

    SIN

    - M - W T F S
    Search

  2. UA499

    Seattle-Tacoma International Airport

    06:57

    SEA

    2h 13m

    Direct

    09:10

    SFO

    S M T W T - S
    Search

  3. UA029

    San Francisco International Airport

    10:25

    SFO

    17h 10m

    Direct

    18:35

    SIN

    S M T W T F S

  4. AC8807

    Seattle-Tacoma International Airport

    15:40

    SEA

    1h 7m

    Direct

    16:47

    YVR

    S M T W T F S
    Search

  5. AC019

    Vancouver International Airport

    23:15

    YVR

    16h 45m

    Direct

    07:00

    SIN

    - M - W T - S

  6. UA5676

    Seattle-Tacoma International Airport

    05:00

    SEA

    2h 9m

    Direct

    07:09

    SFO

    - M - - - - -
    Search

  7. UA029

    San Francisco International Airport

    10:25

    SFO

    17h 10m

    Direct

    18:35

    SIN

    S M T W T F S

  8. PR125

    Seattle-Tacoma International Airport

    23:10

    SEA

    13h 50m

    Direct

    04:00

    MNL

    - M T W T - S
    Search

  9. PR507

    Ninoy Aquino International Airport

    09:30

    MNL

    3h 45m

    Direct

    13:15

    SIN

    S M T W T F S

  10. UA7929

    Seattle-Tacoma International Airport

    16:30

    SEA

    10h 30m

    Direct

    19:00

    HND

    S M T W T F S
    Search

  11. UA7991

    Haneda Airport

    00:30

    HND

    7h 10m

    Direct

    06:40

    SIN

    S M T W T F S

  12. KE042

    Seattle-Tacoma International Airport

    12:50

    SEA

    11h 50m

    Direct

    16:40

    ICN

    S M T W T F S
    Search

  13. KE647

    Incheon International Airport

    23:35

    ICN

    6h 25m

    Direct

    05:00

    SIN

    S M T W T F S

  14. OZ271

    Seattle-Tacoma International Airport

    00:55

    SEA

    12h 20m

    Direct

    05:15

    ICN

    S M T - T F -
    Search

  15. OZ751

    Incheon International Airport

    16:10

    ICN

    6h 20m

    Direct

    21:30

    SIN

    S M T W T F S

  16. UA2121

    Seattle-Tacoma International Airport

    08:42

    SEA

    2h 19m

    Direct

    11:01

    SFO

    S M T W T F S
    Search

  17. UA001

    San Francisco International Airport

    22:40

    SFO

    17h 20m

    Direct

    08:00

    SIN

    S M T W T F S

  18. QR720

    Seattle-Tacoma International Airport

    17:05

    SEA

    15h 25m

    Direct

    18:30

    DOH

    S - T - - F -
    Search

  19. QR948

    Hamad International Airport

    02:35

    DOH

    8h 10m

    Direct

    15:45

    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 priceUS$262
Cheapest return ticket priceUS$908

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 26 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 US$1,537 in May, 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 US$1,537 in May, 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.