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Seattle-Tacoma International Airport to Singapore Changi Airport flight

Explore the cheapest one-way and round-trip flights from Seattle-Tacoma International Airport to Singapore Changi Airport over the next 90 days, with one-way fares from CAD 412 and round-trip from CAD 954. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Fri, Nov 27 | Singapore Airlines
      SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Fri, Dec 4 | Singapore Airlines
      CAD 954 CAD 1,117
      15% off
      15% off
      CAD 1,117 CAD 954
    • SEA 10:15
      16h 20m
      Direct
      SIN 17:35
      Seattle - Singapore | Fri, Nov 13 | Singapore Airlines
      SIN 09:00
      14h 45m
      Direct
      SEA 08:45
      Singapore - Seattle | Tue, Nov 17 | Singapore Airlines
      CAD 967 CAD 1,117
      13% off
      13% off
      CAD 1,117 CAD 967
    • SEA 09:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Fri, Nov 20 | Singapore Airlines
      SIN 08:55
      14h 10m
      Direct
      SEA 08:05
      Singapore - Seattle | Sun, Nov 22 | Singapore Airlines
      CAD 967 CAD 1,117
      13% off
      13% off
      CAD 1,117 CAD 967
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Nov 28 | Singapore Airlines
      SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Mon, Nov 30 | Singapore Airlines
      CAD 967
      13% off
      CAD 1,117 CAD 967
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Fri, Dec 4 | Singapore Airlines
      SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Fri, Dec 11 | Singapore Airlines
      CAD 967
      13% off
      CAD 1,117 CAD 967
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Mon, Dec 21 | Singapore Airlines
      SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Sat, Dec 26 | Singapore Airlines
      CAD 967
      13% off
      CAD 1,117 CAD 967
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Tue, Dec 22 | Singapore Airlines
      SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Sat, Dec 26 | Singapore Airlines
      CAD 967
      13% off
      CAD 1,117 CAD 967
    • SEA 10:10
      28h 50m
      1 stop
      SIN 07:00
      Seattle - Singapore | Sun, Dec 20 | Air Canada
      SIN 08:40
      16h 52m
      1 stop
      SEA 09:32
      Singapore - Seattle | Sun, Dec 27 | Air Canada
      CAD 988
      12% off
      CAD 1,117 CAD 988
    • SEA 19:05
      19h 55m
      1 stop
      SIN 07:00
      Seattle - Singapore | Fri, Dec 11 | Air Canada
      SIN 08:40
      16h 52m
      1 stop
      SEA 09:32
      Singapore - Seattle | Fri, Dec 18 | Air Canada
      CAD 1,003
      10% off
      CAD 1,117 CAD 1,003
    • SEA 13:00
      17h 25m
      1 stop
      SIN 14:00
      Seattle - Singapore | Mon, Nov 2 | Normal Airline
      SIN 15:00
      6h
      Direct
      SEA 16:00
      Singapore - Seattle | Wed, Nov 4 | Normal Airline
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    • Cheapest
      SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Jan 17 | Singapore Airlines
      CAD 412 CAD 1,160
      64% off
      64% off
      CAD 1,160 CAD 412
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Tue, Jan 19 | Singapore Airlines
      CAD 413 CAD 1,160
      64% off
      64% off
      CAD 1,160 CAD 413
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 20 | Singapore Airlines
      CAD 413 CAD 1,160
      64% off
      64% off
      CAD 1,160 CAD 413
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 23 | Singapore Airlines
      CAD 419
      64% off
      CAD 1,160 CAD 419
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Nov 29 | Singapore Airlines
      CAD 426
      26% off
      CAD 575 CAD 426
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 13 | Singapore Airlines
      CAD 449
      61% off
      CAD 1,160 CAD 449
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Fri, Jan 15 | Singapore Airlines
      CAD 451
      61% off
      CAD 1,160 CAD 451
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Jan 10 | Singapore Airlines
      CAD 456
      61% off
      CAD 1,160 CAD 456
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 16 | Singapore Airlines
      CAD 459
      60% off
      CAD 1,160 CAD 459
    • SEA 13:00
      17h 25m
      1 stop
      SIN 14:00
      Seattle - Singapore | Mon, Nov 2 | Normal Airline
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    • Cheapest nonstop
      SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Jan 17 | Singapore Airlines
      CAD 412 CAD 2,078
      80% off
      80% off
      CAD 2,078 CAD 412
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Tue, Jan 19 | Singapore Airlines
      CAD 413 CAD 2,078
      80% off
      80% off
      CAD 2,078 CAD 413
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 20 | Singapore Airlines
      CAD 413 CAD 2,078
      80% off
      80% off
      CAD 2,078 CAD 413
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 23 | Singapore Airlines
      CAD 419
      80% off
      CAD 2,078 CAD 419
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 13 | Singapore Airlines
      CAD 449
      78% off
      CAD 2,078 CAD 449
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Fri, Jan 15 | Singapore Airlines
      CAD 451
      78% off
      CAD 2,078 CAD 451
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Jan 10 | Singapore Airlines
      CAD 456
      78% off
      CAD 2,078 CAD 456
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 16 | Singapore Airlines
      CAD 459
      78% off
      CAD 2,078 CAD 459
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Tue, Jan 12 | Singapore Airlines
      CAD 640
      69% off
      CAD 2,078 CAD 640
    • SEA 13:00
      17h 25m
      1 stop
      SIN 14:00
      Seattle - Singapore | Mon, Nov 2 | Normal Airline
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    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Jan 17 | Singapore Airlines
      CAD 412 CAD 1,160
      64% off
      64% off
      CAD 1,160 CAD 412
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Tue, Jan 19 | Singapore Airlines
      CAD 413 CAD 1,160
      64% off
      64% off
      CAD 1,160 CAD 413
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 20 | Singapore Airlines
      CAD 413 CAD 1,160
      64% off
      64% off
      CAD 1,160 CAD 413
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 23 | Singapore Airlines
      CAD 419
      64% off
      CAD 1,160 CAD 419
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Nov 29 | Singapore Airlines
      CAD 426
      26% off
      CAD 575 CAD 426
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 13 | Singapore Airlines
      CAD 449
      61% off
      CAD 1,160 CAD 449
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Fri, Jan 15 | Singapore Airlines
      CAD 451
      61% off
      CAD 1,160 CAD 451
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Jan 10 | Singapore Airlines
      CAD 456
      61% off
      CAD 1,160 CAD 456
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 16 | Singapore Airlines
      CAD 459
      60% off
      CAD 1,160 CAD 459
    • SEA 13:00
      17h 25m
      1 stop
      SIN 14:00
      Seattle - Singapore | Mon, Nov 2 | Normal Airline
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    • Cheapest nonstop
      SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Nov 7 | Singapore Airlines
      CAD 669 CAD 2,473
      73% off
      73% off
      CAD 2,473 CAD 669
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Nov 4 | Singapore Airlines
      CAD 671 CAD 2,473
      73% off
      73% off
      CAD 2,473 CAD 671
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Tue, Nov 3 | Singapore Airlines
      CAD 722 CAD 2,473
      71% off
      71% off
      CAD 2,473 CAD 722
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Nov 1 | Singapore Airlines
      CAD 1,010
      59% off
      CAD 2,473 CAD 1,010
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Fri, Nov 6 | Singapore Airlines
      CAD 1,190
      52% off
      CAD 2,473 CAD 1,190
    • SEA 07:00
      21h 15m
      1 stop
      SIN 20:15
      Seattle - Singapore | Sun, Nov 1 | United Airlines
      CAD 508
      79% off
      CAD 2,473 CAD 508
    • SEA 07:00
      21h 15m
      1 stop
      SIN 20:15
      Seattle - Singapore | Mon, Nov 2 | United Airlines
      CAD 508
      79% off
      CAD 2,473 CAD 508
    • SEA 07:00
      21h 15m
      1 stop
      SIN 20:15
      Seattle - Singapore | Wed, Nov 4 | United Airlines
      CAD 514
      79% off
      CAD 2,473 CAD 514
    • SEA 15:40
      23h 15m
      1 stop
      SIN 06:55
      Seattle - Singapore | Thu, Nov 5 | United Airlines
      CAD 521
      79% off
      CAD 2,473 CAD 521
    • SEA 13:00
      17h 25m
      1 stop
      SIN 14:00
      Seattle - Singapore | Mon, Nov 2 | Normal Airline
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    • Cheapest nonstop
      SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Jan 17 | Singapore Airlines
      CAD 412 CAD 1,160
      64% off
      64% off
      CAD 1,160 CAD 412
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Tue, Jan 19 | Singapore Airlines
      CAD 413 CAD 1,160
      64% off
      64% off
      CAD 1,160 CAD 413
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 20 | Singapore Airlines
      CAD 413 CAD 1,160
      64% off
      64% off
      CAD 1,160 CAD 413
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 23 | Singapore Airlines
      CAD 419
      64% off
      CAD 1,160 CAD 419
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Nov 29 | Singapore Airlines
      CAD 426
      26% off
      CAD 575 CAD 426
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 13 | Singapore Airlines
      CAD 449
      61% off
      CAD 1,160 CAD 449
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Fri, Jan 15 | Singapore Airlines
      CAD 451
      61% off
      CAD 1,160 CAD 451
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Jan 10 | Singapore Airlines
      CAD 456
      61% off
      CAD 1,160 CAD 456
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 16 | Singapore Airlines
      CAD 459
      60% off
      CAD 1,160 CAD 459
    • SEA 13:00
      17h 25m
      1 stop
      SIN 14:00
      Seattle - Singapore | Mon, Nov 2 | Normal Airline
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Displayed flight fares from Seattle to Singapore are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

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

What is the cheapest month to fly from Seattle-Tacoma International Airport to Singapore Changi Airport?

The data is based on the past 12 months and shows the average one-way ticket prices from Seattle-Tacoma International Airport to Singapore Changi Airport for each month in the Trip.com database.

Based on Trip.com's 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 CAD 469. It is best to avoid December, when the average price can reach CAD 1,188.

CAD 1,188
CAD 829
CAD 469
CAD 110
    Cheapest
  • CAD 623
    Oct
  • CAD 717
    Nov
  • CAD 1,188
    Dec
  • CAD 691
    Jan
  • CAD 770
    Feb
  • CAD 655
    Mar
  • CAD 469
    Apr
  • CAD 708
    May
  • CAD 936
    Jun
  • CAD 973
    Jul
  • CAD 777
    Aug
  • CAD 690
    Sep

What is the cheapest day of the week to fly from Seattle-Tacoma International Airport to Singapore Changi Airport?

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

Based on Trip.com's data from the past 12 months, the cheapest departure day from Seattle-Tacoma International Airport to Singapore Changi Airport is Tuesday, with average prices usually lower than other days. Avoid departing on Wednesday as prices are typically highest on that day.

CAD 936
CAD 809
CAD 681
CAD 554
  • CAD 880
    Mon
  • CAD 681
    Tue
  • CAD 936
    Wed
  • CAD 771
    Thu
  • CAD 799
    Fri
  • CAD 782
    Sat
  • CAD 684
    Sun

Which airline offers the cheapest flights from Seattle-Tacoma International Airport to Singapore Changi Airport?

The cheapest airline flying from Seattle-Tacoma International Airport to Singapore Changi Airport is Singapore Airlines (from CAD 426) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Singapore Airlines
From CAD 426
United Airlines
From CAD 507
Korean Air
From CAD 512
Delta Air Lines
From CAD 531
All Nippon Airways
From CAD 546
Asiana Airlines
From CAD 559
Philippine Airlines
From CAD 561
American Airlines
From CAD 578
Japan Airlines
From CAD 618
Air Canada
From CAD 620

Find more flights and airlines

What is the 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

    09:40

    SEA

    17h 5m

    17:45

    SIN

    - M T W T F S
    Search

  2. KE042

    Seattle-Tacoma International Airport

    11:00

    SEA

    11h 55m

    Direct

    15:55

    ICN

    S M T W T F S
    Search

  3. KE645

    Incheon International Airport

    18:35

    ICN

    6h 40m

    Direct

    00:15

    SIN

    S M T W T F S

  4. UA499

    Seattle-Tacoma International Airport

    07:00

    SEA

    2h 19m

    Direct

    09:19

    SFO

    S M T W T F S
    Search

  5. UA029

    San Francisco International Airport

    10:50

    SFO

    15h 45m

    Direct

    18:35

    SIN

    S M T W T F S

  6. KE042

    Seattle-Tacoma International Airport

    11:00

    SEA

    11h 55m

    Direct

    15:55

    ICN

    S M T W T F S
    Search

  7. KE647

    Incheon International Airport

    23:15

    ICN

    6h 45m

    Direct

    05:00

    SIN

    S M T W T F S

  8. KE048

    Seattle-Tacoma International Airport

    00:10

    SEA

    12h 10m

    Direct

    05:20

    ICN

    S M T - T F -
    Search

  9. KE643

    Incheon International Airport

    14:35

    ICN

    6h 50m

    Direct

    20:25

    SIN

    S M T W T F S

  10. KE048

    Seattle-Tacoma International Airport

    00:10

    SEA

    12h 10m

    Direct

    05:20

    ICN

    S M T - T F -
    Search

  11. KE645

    Incheon International Airport

    18:35

    ICN

    6h 40m

    Direct

    00:15

    SIN

    S M T W T F S

  12. UA1334

    Seattle-Tacoma International Airport

    19:35

    SEA

    2h 15m

    Direct

    21:50

    SFO

    S M T W T - S
    Search

  13. UA029

    San Francisco International Airport

    10:50

    SFO

    15h 45m

    Direct

    18:35

    SIN

    S M T W T F S

  14. KE048

    Seattle-Tacoma International Airport

    00:10

    SEA

    12h 10m

    Direct

    05:20

    ICN

    S M T - T F -
    Search

  15. KE647

    Incheon International Airport

    23:15

    ICN

    6h 45m

    Direct

    05:00

    SIN

    S M T W T F S

  16. DL197

    Seattle-Tacoma International Airport

    13:05

    SEA

    10h 45m

    Direct

    16:50

    ICN

    S M T W T F S
    Search

  17. DL7819

    Incheon International Airport

    14:20

    ICN

    6h 10m

    Direct

    19:30

    SIN

    S M T W T F S
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About Seattle-Tacoma International Airport and Singapore Changi Airport

Learn about Seattle-Tacoma International Airport (SEA) and Singapore Changi Airport (SIN) — including location, terminals, transportation, and travel tips.

Flight distance 12,993.6km
Cheapest one-way ticket price CAD 412
Cheapest return ticket price CAD 954

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

  • How many daily flights are there 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).
  • The earliest flight from Seattle-Tacoma International Airport to Singapore Changi Airport departs at 09:40, and the last departs at 09:55, with about 1 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • 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 CAD 2,698 in December, the most expensive month to book this route.
    • 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.
  • One-way flights from Seattle-Tacoma International Airport to Singapore Changi Airport currently start from CAD 426, and round-trip fares start from CAD 954. The current lowest fare is a Singapore Airlines flight departing on Sun, Nov 29; prices may vary depending on availability.
  • Yes. Singapore Airlines operate direct flights from Seattle-Tacoma International Airport to Singapore Changi Airport, with an average flight time of 16 hours 10 minutes, and around 5 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Seattle-Tacoma International Airport to Singapore Changi Airport is CAD 994. Prices may vary depending on the departure date, airline, and availability.
  • Seattle-Tacoma International Airport to Singapore Changi Airport operates around 5 weekly flights, mainly by Singapore Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Seattle-Tacoma International Airport and Singapore Changi Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

Find Cheap Flights with Trip.com

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

Book with no extra fees

Prices displayed on this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within the last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.