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Singapore Changi Airport to Seattle-Tacoma International Airport flight

Explore the cheapest one-way and round-trip flights from Singapore Changi Airport to Seattle-Tacoma International Airport over the next 90 days, with one-way fares from S$ 579 and round-trip from S$ 972. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      SIN 08:55
      14h 10m
      SEA 07:05
      Singapore - Seattle | Tue, Nov 24 | Singapore Airlines
      SEA 08:40
      17h 5m
      SIN 17:45
      Seattle - Singapore | Sun, Nov 29 | Singapore Airlines
      S$ 1,004 S$ 1,173
      14% off
      14% off
      S$ 1,173 S$ 1,004
    • SIN 08:55
      14h 10m
      SEA 07:05
      Singapore - Seattle | Wed, Nov 25 | Singapore Airlines
      SEA 08:40
      17h 5m
      SIN 17:45
      Seattle - Singapore | Wed, Dec 2 | Singapore Airlines
      S$ 1,008 S$ 1,173
      14% off
      14% off
      S$ 1,173 S$ 1,008
    • SIN 08:40
      16h 52m
      SEA 09:32
      Singapore - Seattle | Sat, Nov 7 | Air Canada
      SEA 10:10
      28h 50m
      SIN 07:00
      Seattle - Singapore | Fri, Nov 13 | Air Canada
      S$ 972 S$ 1,173
      17% off
      17% off
      S$ 1,173 S$ 972
    • SIN 08:40
      16h 52m
      SEA 09:32
      Singapore - Seattle | Sun, Nov 1 | Air Canada
      SEA 08:40
      30h 20m
      SIN 07:00
      Seattle - Singapore | Thu, Nov 5 | Air Canada
      S$ 975
      17% off
      S$ 1,173 S$ 975
    • SIN 08:40
      21h 57m
      SEA 14:37
      Singapore - Seattle | Fri, Nov 20 | Air Canada
      SEA 19:05
      19h 55m
      SIN 07:00
      Seattle - Singapore | Fri, Nov 27 | Air Canada
      S$ 982
      16% off
      S$ 1,173 S$ 982
    • SIN 08:40
      16h 47m
      SEA 09:27
      Singapore - Seattle | Sat, Nov 21 | Air Canada
      SEA 08:40
      30h 20m
      SIN 07:00
      Seattle - Singapore | Wed, Nov 25 | Air Canada
      S$ 985
      16% off
      S$ 1,173 S$ 985
    • SIN 08:40
      16h 52m
      SEA 09:32
      Singapore - Seattle | Tue, Nov 10 | Air Canada
      SEA 10:10
      28h 50m
      SIN 07:00
      Seattle - Singapore | Sun, Nov 15 | Air Canada
      S$ 988
      16% off
      S$ 1,173 S$ 988
    • SIN 08:40
      16h 52m
      SEA 09:32
      Singapore - Seattle | Sun, Nov 8 | Air Canada
      SEA 19:05
      19h 55m
      SIN 07:00
      Seattle - Singapore | Sun, Nov 15 | Air Canada
      S$ 988
      16% off
      S$ 1,173 S$ 988
    • SIN 08:40
      16h 52m
      SEA 09:32
      Singapore - Seattle | Thu, Nov 5 | Air Canada
      SEA 19:05
      19h 55m
      SIN 07:00
      Seattle - Singapore | Sun, Nov 8 | Air Canada
      S$ 988
      16% off
      S$ 1,173 S$ 988
    • SIN 13:00
      17h 25m
      1 stop
      SEA 14:00
      Singapore - Seattle | Tue, Oct 20 | Normal Airline
      SEA 15:00
      6h
      Direct
      SIN 16:00
      Seattle - Singapore | Thu, Oct 22 | Normal Airline
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    • Cheapest
      SIN 09:00
      14h 25m
      Direct
      SEA 08:25
      Singapore - Seattle | Thu, Oct 22 | Singapore Airlines
      S$ 579 S$ 713
      19% off
      19% off
      S$ 713 S$ 579
    • Cheapest
      SIN 09:00
      14h 25m
      Direct
      SEA 08:25
      Singapore - Seattle | Fri, Oct 23 | Singapore Airlines
      S$ 579 S$ 713
      19% off
      19% off
      S$ 713 S$ 579
    • Cheapest
      SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Fri, Nov 6 | Singapore Airlines
      S$ 579 S$ 713
      19% off
      19% off
      S$ 713 S$ 579
    • Cheapest
      SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Tue, Nov 10 | Singapore Airlines
      S$ 579
      19% off
      S$ 713 S$ 579
    • Cheapest
      SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Wed, Nov 11 | Singapore Airlines
      S$ 579
      19% off
      S$ 713 S$ 579
    • Cheapest
      SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Fri, Nov 13 | Singapore Airlines
      S$ 579
      19% off
      S$ 713 S$ 579
    • Cheapest
      SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Tue, Nov 17 | Singapore Airlines
      S$ 579
      19% off
      S$ 713 S$ 579
    • Cheapest
      SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Fri, Nov 20 | Singapore Airlines
      S$ 579
      19% off
      S$ 713 S$ 579
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Sun, Nov 22 | Singapore Airlines
      S$ 599
      16% off
      S$ 713 S$ 599
    • SIN 13:00
      17h 25m
      1 stop
      SEA 14:00
      Singapore - Seattle | Tue, Oct 20 | Normal Airline
      Find more flights
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    • Cheapest nonstop
      SIN 09:00
      14h 25m
      Direct
      SEA 08:25
      Singapore - Seattle | Thu, Oct 22 | Singapore Airlines
      S$ 579 S$ 1,528
      62% off
      62% off
      S$ 1,528 S$ 579
    • SIN 09:00
      14h 25m
      Direct
      SEA 08:25
      Singapore - Seattle | Fri, Oct 23 | Singapore Airlines
      S$ 579 S$ 1,528
      62% off
      62% off
      S$ 1,528 S$ 579
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Wed, Nov 11 | Singapore Airlines
      S$ 579 S$ 1,528
      62% off
      62% off
      S$ 1,528 S$ 579
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Fri, Nov 13 | Singapore Airlines
      S$ 579
      62% off
      S$ 1,528 S$ 579
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Tue, Nov 17 | Singapore Airlines
      S$ 579
      62% off
      S$ 1,528 S$ 579
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Fri, Nov 6 | Singapore Airlines
      S$ 579
      62% off
      S$ 1,528 S$ 579
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Fri, Nov 20 | Singapore Airlines
      S$ 579
      62% off
      S$ 1,528 S$ 579
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Sun, Nov 22 | Singapore Airlines
      S$ 599
      61% off
      S$ 1,528 S$ 599
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Tue, Nov 24 | Singapore Airlines
      S$ 599
      61% off
      S$ 1,528 S$ 599
    • SIN 13:00
      17h 25m
      1 stop
      SEA 14:00
      Singapore - Seattle | Tue, Oct 20 | Normal Airline
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    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Fri, Dec 4 | Singapore Airlines
      S$ 1,159 S$ 2,712
      56% off
      56% off
      S$ 2,712 S$ 1,159
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Wed, Dec 16 | Singapore Airlines
      S$ 1,167 S$ 2,712
      56% off
      56% off
      S$ 2,712 S$ 1,167
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Sat, Nov 28 | Singapore Airlines
      S$ 1,408 S$ 2,712
      48% off
      48% off
      S$ 2,712 S$ 1,408
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Sat, Dec 12 | Singapore Airlines
      S$ 1,245
      54% off
      S$ 2,712 S$ 1,245
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Tue, Dec 1 | Singapore Airlines
      S$ 1,782
      34% off
      S$ 2,712 S$ 1,782
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Sat, Dec 19 | Singapore Airlines
      S$ 1,252
      54% off
      S$ 2,712 S$ 1,252
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Fri, Jan 8 | Singapore Airlines
      S$ 2,332
      14% off
      S$ 2,712 S$ 2,332
    • SIN 08:55
      14h 10m
      Direct
      SEA 08:05
      Singapore - Seattle | Thu, Oct 29 | Singapore Airlines
      S$ 668
      75% off
      S$ 2,712 S$ 668
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Sat, Nov 14 | Singapore Airlines
      S$ 1,221
      55% off
      S$ 2,712 S$ 1,221
    • SIN 13:00
      17h 25m
      1 stop
      SEA 14:00
      Singapore - Seattle | Tue, Oct 20 | Normal Airline
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    • Cheapest nonstop
      SIN 09:00
      14h 25m
      Direct
      SEA 08:25
      Singapore - Seattle | Thu, Oct 22 | Singapore Airlines
      S$ 579 S$ 1,792
      68% off
      68% off
      S$ 1,792 S$ 579
    • SIN 09:00
      14h 25m
      Direct
      SEA 08:25
      Singapore - Seattle | Fri, Oct 23 | Singapore Airlines
      S$ 579 S$ 1,792
      68% off
      68% off
      S$ 1,792 S$ 579
    • SIN 09:00
      14h 25m
      Direct
      SEA 08:25
      Singapore - Seattle | Sat, Oct 24 | Singapore Airlines
      S$ 1,221 S$ 1,792
      32% off
      32% off
      S$ 1,792 S$ 1,221
    • SIN 09:00
      14h 25m
      Direct
      SEA 08:25
      Singapore - Seattle | Tue, Oct 20 | Singapore Airlines
      S$ 1,225
      32% off
      S$ 1,792 S$ 1,225
    • SIN 08:55
      14h 10m
      Direct
      SEA 08:05
      Singapore - Seattle | Sun, Oct 25 | Singapore Airlines
      S$ 1,541
      14% off
      S$ 1,792 S$ 1,541
    • SIN 07:00
      18h 5m
      1 stop
      SEA 10:05
      Singapore - Seattle | Thu, Oct 22 | Air Canada
      S$ 618
      66% off
      S$ 1,792 S$ 618
    • SIN 07:00
      18h 5m
      1 stop
      SEA 10:05
      Singapore - Seattle | Tue, Oct 20 | Air Canada
      S$ 618
      66% off
      S$ 1,792 S$ 618
    • SIN 08:05
      17h 30m
      1 stop
      SEA 10:35
      Singapore - Seattle | Fri, Oct 23 | Japan Airlines
      S$ 636
      65% off
      S$ 1,792 S$ 636
    • SIN 08:05
      17h 30m
      1 stop
      SEA 10:35
      Singapore - Seattle | Thu, Oct 22 | Japan Airlines
      S$ 636
      65% off
      S$ 1,792 S$ 636
    • SIN 13:00
      17h 25m
      1 stop
      SEA 14:00
      Singapore - Seattle | Tue, Oct 20 | Normal Airline
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    • Cheapest nonstop
      SIN 09:00
      14h 25m
      Direct
      SEA 08:25
      Singapore - Seattle | Thu, Oct 22 | Singapore Airlines
      S$ 579 S$ 1,420
      59% off
      59% off
      S$ 1,420 S$ 579
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Wed, Nov 11 | Singapore Airlines
      S$ 579 S$ 1,420
      59% off
      59% off
      S$ 1,420 S$ 579
    • SIN 09:00
      14h 25m
      Direct
      SEA 08:25
      Singapore - Seattle | Fri, Oct 23 | Singapore Airlines
      S$ 579 S$ 1,420
      59% off
      59% off
      S$ 1,420 S$ 579
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Fri, Nov 13 | Singapore Airlines
      S$ 579
      59% off
      S$ 1,420 S$ 579
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Tue, Nov 17 | Singapore Airlines
      S$ 579
      59% off
      S$ 1,420 S$ 579
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Fri, Nov 6 | Singapore Airlines
      S$ 579
      59% off
      S$ 1,420 S$ 579
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Fri, Nov 20 | Singapore Airlines
      S$ 579
      59% off
      S$ 1,420 S$ 579
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Sun, Nov 22 | Singapore Airlines
      S$ 599
      57% off
      S$ 1,420 S$ 599
    • SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Tue, Nov 24 | Singapore Airlines
      S$ 599
      57% off
      S$ 1,420 S$ 599
    • SIN 13:00
      17h 25m
      1 stop
      SEA 14:00
      Singapore - Seattle | Tue, Oct 20 | 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 Singapore Changi Airport to Seattle-Tacoma International Airport

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

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

Based on Trip.com data from the past 12 months, the cheapest one-way flights from Singapore Changi Airport to Seattle-Tacoma International Airport are usually in October, with an average price of S$ 645. June sees the highest fares, around S$ 1,222.

S$ 1,222
S$ 934
S$ 645
S$ 357
  • S$ 645
    Oct
  • S$ 768
    Nov
  • S$ 822
    Dec
  • S$ 881
    Jan
  • S$ 806
    Feb
  • S$ 1,001
    Mar
  • S$ 876
    Apr
  • S$ 903
    May
  • S$ 1,222
    Jun
  • S$ 828
    Jul
  • S$ 939
    Aug
  • S$ 921
    Sep

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

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

S$ 1,067
S$ 903
S$ 738
S$ 574
    Cheapest
  • S$ 815
    Mon
  • S$ 1,067
    Tue
  • S$ 738
    Wed
  • S$ 931
    Thu
  • S$ 959
    Fri
  • S$ 902
    Sat
  • S$ 933
    Sun

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

The cheapest airline flying from Singapore Changi Airport to Seattle-Tacoma International Airport is Singapore Airlines (from S$ 579) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Singapore Airlines
From S$ 579
Air Canada
From S$ 613
TransNusa Airlines
From S$ 617
Citilink
From S$ 623
Batik Air
From S$ 627
Japan Airlines
From S$ 636
United Airlines
From S$ 637
Hainan Airlines
From S$ 643
Korean Air
From S$ 645
American Airlines
From S$ 651

Find more flights and airlines

What is the flight schedule from Singapore Changi Airport to Seattle-Tacoma International Airport?

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. SQ028

    Singapore Changi Airport

    09:00

    SIN

    15h 45m

    08:45

    SEA

    - M - W T F S
    Search

  2. AC020

    Singapore Changi Airport

    07:00

    SIN

    14h 25m

    Direct

    06:25

    YVR

    - M - W - F S
    Search

  3. AC8804

    Vancouver International Airport

    13:10

    YVR

    1h 7m

    Direct

    14:17

    SEA

    S M T W T F S

  4. AC020

    Singapore Changi Airport

    07:00

    SIN

    14h 25m

    Direct

    06:25

    YVR

    - M - W - F S
    Search

  5. AC8810

    Vancouver International Airport

    21:10

    YVR

    1h 7m

    Direct

    22:17

    SEA

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

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

Flight distance 12,993.6km
Cheapest one-way ticket price S$ 579
Cheapest return ticket price S$ 972

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

  • How many daily flights are there from Singapore Changi Airport (SIN) to Seattle-Tacoma International Airport (SEA)?

    There are around 1 daily flights from Singapore Changi Airport (SIN) to Seattle-Tacoma International Airport (SEA).
  • The earliest flight from Singapore Changi Airport to Seattle-Tacoma International Airport departs at 09:00, and the last departs at 09:00, 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 Singapore Changi Airport (SIN) to Seattle-Tacoma International Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around S$ 1,621 in December, the most expensive month to book this route.
  • The earliest flight departs from Singapore Changi Airport (SIN) at 09:00 and arrives in Seattle-Tacoma International Airport (SEA) at 07:10.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17km, by taxi about 30 minutes.
  • Singapore Airlines is a very popular airline operating an average of 591 flights per month.
  • One-way flights from Singapore Changi Airport to Seattle-Tacoma International Airport currently start from S$ 579, and round-trip fares start from S$ 972. The current lowest fare is a Singapore Airlines flight departing on Thu, Oct 22; prices may vary depending on availability.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Singapore Changi Airport to Seattle-Tacoma International Airport is S$ 867. Prices may vary depending on the departure date, airline, and availability.
  • Singapore Changi Airport to Seattle-Tacoma International Airport operates around 5 weekly flights, mainly by Singapore Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Singapore Changi Airport and Seattle-Tacoma International 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.

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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.