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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 AU$619 and round-trip from AU$1,052. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SIN 09:00
        14h 45m
        Direct
        SEA 08:45
        Singapore - Seattle | Tue, Nov 3 | Singapore Airlines
        SEA 10:15
        16h 20m
        Direct
        SIN 17:35
        Seattle - Singapore | Sun, Nov 8 | Singapore Airlines
        AU$1,343 AU$1,589
        15% off
        15% off
        AU$1,589 AU$1,343
      • SIN 09:00
        14h 45m
        Direct
        SEA 08:45
        Singapore - Seattle | Tue, Oct 27 | Singapore Airlines
        SEA 10:15
        16h 20m
        Direct
        SIN 17:35
        Seattle - Singapore | Fri, Oct 30 | Singapore Airlines
        AU$1,350 AU$1,589
        15% off
        15% off
        AU$1,589 AU$1,350
      • SIN 08:40
        16h 52m
        1 stop
        SEA 09:32
        Singapore - Seattle | Sun, Nov 1 | Air Canada
        SEA 08:40
        30h 20m
        1 stop
        SIN 07:00
        Seattle - Singapore | Thu, Nov 5 | Air Canada
        AU$1,052 AU$1,589
        34% off
        34% off
        AU$1,589 AU$1,052
      • SIN 08:40
        20h 57m
        1 stop
        SEA 14:37
        Singapore - Seattle | Sat, Oct 31 | Air Canada
        SEA 08:40
        30h 20m
        1 stop
        SIN 07:00
        Seattle - Singapore | Fri, Nov 6 | Air Canada
        AU$1,074
        32% off
        AU$1,589 AU$1,074
      • SIN 08:40
        20h 57m
        1 stop
        SEA 14:37
        Singapore - Seattle | Fri, Oct 30 | Air Canada
        SEA 08:40
        30h 20m
        1 stop
        SIN 07:00
        Seattle - Singapore | Tue, Nov 3 | Air Canada
        AU$1,074
        32% off
        AU$1,589 AU$1,074
      • SIN 08:40
        20h 57m
        1 stop
        SEA 14:37
        Singapore - Seattle | Thu, Oct 29 | Air Canada
        SEA 08:40
        30h 20m
        1 stop
        SIN 07:00
        Seattle - Singapore | Tue, Nov 3 | Air Canada
        AU$1,074
        32% off
        AU$1,589 AU$1,074
      • SIN 08:40
        20h 57m
        1 stop
        SEA 14:37
        Singapore - Seattle | Tue, Oct 27 | Air Canada
        SEA 19:05
        19h 55m
        1 stop
        SIN 07:00
        Seattle - Singapore | Tue, Nov 3 | Air Canada
        AU$1,074
        32% off
        AU$1,589 AU$1,074
      • SIN 08:40
        20h 57m
        1 stop
        SEA 14:37
        Singapore - Seattle | Sun, Oct 25 | Air Canada
        SEA 19:05
        20h 55m
        1 stop
        SIN 07:00
        Seattle - Singapore | Wed, Oct 28 | Air Canada
        AU$1,074
        32% off
        AU$1,589 AU$1,074
      • SIN 07:00
        26h 32m
        1 stop
        SEA 18:32
        Singapore - Seattle | Sat, Oct 24 | Air Canada
        SEA 08:40
        31h 20m
        1 stop
        SIN 07:00
        Seattle - Singapore | Wed, Oct 28 | Air Canada
        AU$1,074
        32% off
        AU$1,589 AU$1,074
      • SIN 07:00
        18h 5m
        1 stop
        SEA 10:05
        Singapore - Seattle | Thu, Oct 22 | Air Canada
        SEA 08:40
        31h 20m
        1 stop
        SIN 07:00
        Seattle - Singapore | Thu, Oct 29 | Air Canada
        AU$1,074
        32% off
        AU$1,589 AU$1,074
      • SIN 07:00
        18h 5m
        1 stop
        SEA 10:05
        Singapore - Seattle | Tue, Oct 20 | Air Canada
        SEA 10:10
        29h 50m
        1 stop
        SIN 07:00
        Seattle - Singapore | Sun, Oct 25 | Air Canada
        AU$1,074
        32% off
        AU$1,589 AU$1,074
      • SIN 07:00
        18h 5m
        1 stop
        SEA 10:05
        Singapore - Seattle | Sun, Oct 18 | Air Canada
        SEA 10:10
        29h 50m
        1 stop
        SIN 07:00
        Seattle - Singapore | Sun, Oct 25 | Air Canada
        AU$1,074
        32% off
        AU$1,589 AU$1,074
      • SIN 08:40
        16h 52m
        1 stop
        SEA 09:32
        Singapore - Seattle | Fri, Nov 6 | Air Canada
        SEA 19:05
        19h 55m
        1 stop
        SIN 07:00
        Seattle - Singapore | Tue, Nov 10 | Air Canada
        AU$1,074
        32% off
        AU$1,589 AU$1,074
      • SIN 08:40
        16h 52m
        1 stop
        SEA 09:32
        Singapore - Seattle | Thu, Nov 5 | Air Canada
        SEA 19:05
        19h 55m
        1 stop
        SIN 07:00
        Seattle - Singapore | Sun, Nov 8 | Air Canada
        AU$1,074
        32% off
        AU$1,589 AU$1,074
      • SIN 13:00
        17h 25m
        1 stop
        SEA 14:00
        Singapore - Seattle | Wed, Sep 9 | Normal Airline
        SEA 15:00
        6h
        Direct
        SIN 16:00
        Seattle - Singapore | Fri, Sep 11 | Normal Airline
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      • Cheapest nonstop
        SIN 08:55
        14h 10m
        Direct
        SEA 08:05
        Singapore - Seattle | Fri, Oct 30 | Singapore Airlines
        AU$649 AU$782
        17% off
        17% off
        AU$782 AU$649
      • SIN 09:00
        14h 45m
        Direct
        SEA 08:45
        Singapore - Seattle | Tue, Oct 20 | Singapore Airlines
        AU$649 AU$782
        17% off
        17% off
        AU$782 AU$649
      • SIN 09:00
        14h 45m
        Direct
        SEA 08:45
        Singapore - Seattle | Thu, Oct 22 | Singapore Airlines
        AU$649 AU$782
        17% off
        17% off
        AU$782 AU$649
      • SIN 08:55
        14h 10m
        Direct
        SEA 08:05
        Singapore - Seattle | Tue, Oct 27 | Singapore Airlines
        AU$649
        17% off
        AU$782 AU$649
      • SIN 08:55
        14h 10m
        Direct
        SEA 08:05
        Singapore - Seattle | Thu, Oct 29 | Singapore Airlines
        AU$649
        17% off
        AU$782 AU$649
      • SIN 08:55
        14h 10m
        Direct
        SEA 07:05
        Singapore - Seattle | Fri, Nov 6 | Singapore Airlines
        AU$649
        17% off
        AU$782 AU$649
      • SIN 08:55
        14h 10m
        Direct
        SEA 07:05
        Singapore - Seattle | Wed, Nov 4 | Singapore Airlines
        AU$650
        17% off
        AU$782 AU$650
      • SIN 09:00
        14h 45m
        Direct
        SEA 08:45
        Singapore - Seattle | Thu, Oct 15 | Singapore Airlines
        AU$653
        16% off
        AU$782 AU$653
      • SIN 09:00
        14h 45m
        Direct
        SEA 08:45
        Singapore - Seattle | Fri, Oct 16 | Singapore Airlines
        AU$653
        16% off
        AU$782 AU$653
      • SIN 09:00
        14h 45m
        Direct
        SEA 08:45
        Singapore - Seattle | Tue, Oct 13 | Singapore Airlines
        AU$664
        15% off
        AU$782 AU$664
      • SIN 08:40
        29h 17m
        1 stop
        SEA 21:57
        Singapore - Seattle | Sun, Nov 1 | Air Canada
        AU$619
        21% off
        AU$782 AU$619
      • SIN 09:05
        38h 15m
        1 stop
        SEA 08:20
        Singapore - Seattle | Wed, Oct 28 | Singapore Airlines
        AU$661
        15% off
        AU$782 AU$661
      • SIN 13:00
        17h 25m
        1 stop
        SEA 14:00
        Singapore - Seattle | Wed, Sep 9 | Normal Airline
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Displayed flight fares from Singapore Changi Airport to Seattle-Tacoma International Airport are based on average prices across airlines for the next 3 months according to the latest Trip.com data.

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

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

The data is based on the past 12 months and shows the average one-way ticket prices from Singapore Changi Airport to Seattle-Tacoma International 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 Singapore Changi Airport to Seattle-Tacoma International Airport are usually in September, with an average price of AU$739. It is best to avoid June, when the average price can reach AU$1,318.

AU$1,318
AU$1,029
AU$739
AU$450
  • AU$739
    Sep
  • AU$761
    Oct
  • AU$829
    Nov
  • AU$887
    Dec
  • AU$950
    Jan
  • AU$869
    Feb
  • AU$1,080
    Mar
  • AU$945
    Apr
  • AU$973
    May
  • AU$1,318
    Jun
  • AU$894
    Jul
  • AU$1,013
    Aug

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

The data is based on the past 12 months and shows the average ticket prices from Singapore Changi Airport to Seattle-Tacoma International 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 Singapore Changi Airport to Seattle-Tacoma International Airport is Wednesday, with average prices usually lower than other days. Avoid departing on Tuesday as prices are typically highest on that day.

AU$1,194
AU$992
AU$789
AU$587
    Cheapest
  • AU$900
    Mon
  • AU$1,194
    Tue
  • AU$789
    Wed
  • AU$993
    Thu
  • AU$993
    Fri
  • AU$938
    Sat
  • AU$1,002
    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 Air Canada (from AU$619) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Air Canada
From AU$619
Singapore Airlines
From AU$649
Garuda Indonesia
From AU$690
Citilink
From AU$694
Etihad Airways
From AU$697
TransNusa Airlines
From AU$700
United Airlines
From AU$702
Korean Air
From AU$711
Delta Air Lines
From AU$720
Hainan Airlines
From AU$730

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

    08:55

    SIN

    14h 10m

    07:05

    SEA

    - M - W T F S
    Search

  2. SQ032

    Singapore Changi Airport

    09:15

    SIN

    15h 35m

    Direct

    09:50

    SFO

    S M T W T F S
    Search

  3. DL1412

    San Francisco International Airport

    14:15

    SFO

    2h 15m

    Direct

    16:30

    SEA

    S M T W T F S

  4. SQ032

    Singapore Changi Airport

    09:15

    SIN

    15h 35m

    Direct

    09:50

    SFO

    S M T W T F S
    Search

  5. DL3707

    San Francisco International Airport

    17:38

    SFO

    2h 23m

    Direct

    20:01

    SEA

    S M T W T F S

  6. AC020

    Singapore Changi Airport

    07:00

    SIN

    14h 25m

    Direct

    06:25

    YVR

    - M T W T F S
    Search

  7. AC8810

    Vancouver International Airport

    21:10

    YVR

    1h 7m

    Direct

    22:17

    SEA

    S M T W T F S

  8. SQ032

    Singapore Changi Airport

    09:15

    SIN

    15h 35m

    Direct

    09:50

    SFO

    S M T W T F S
    Search

  9. AS620

    San Francisco International Airport

    07:00

    SFO

    2h 8m

    Direct

    09:08

    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 AU$619
Cheapest return ticket price AU$1,052

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

  • How long does it take to fly from Singapore Changi Airport (SIN) to Seattle-Tacoma International Airport (SEA)?

    It takes around 14 hours 40 minutes to fly 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).
  • Tickets cost around AU$1,335 in October, making it the cheapest month to book. Singapore Changi Airport (SIN) to Seattle-Tacoma International Airport (SEA) is a popular route, so don't forget to book your tickets in advance.
  • 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 AU$1,335 in October, the most expensive month to book this route.
    • 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.
  • 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.
  • Singapore Changi Airport to Seattle-Tacoma International Airport operates around 3 weekly flights, mainly by Singapore Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • 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 AU$1,145. Prices may vary depending on the departure date, airline, and availability.
  • 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.

Find Cheap Flights with Trip.com

Note: Prices shown on this page are the estimated lowest prices 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 (including taxes, fuel surcharges, 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 have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check 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 according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed 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 visit the customer support pages.