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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 DKK 2,117 and round-trip from DKK 4,535. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SEA 08:40
        17h 5m
        Direct
        SIN 17:45
        Seattle - Singapore | Sat, Nov 7 | Singapore Airlines
        SIN 08:55
        14h 10m
        Direct
        SEA 07:05
        Singapore - Seattle | Sat, Nov 14 | Singapore Airlines
        DKK 4,535 DKK 6,543
        31% off
        31% off
        DKK 6,543 DKK 4,535
      • SEA 10:15
        16h 20m
        Direct
        SIN 17:35
        Seattle - Singapore | Sat, Oct 24 | Singapore Airlines
        SIN 09:00
        14h 45m
        Direct
        SEA 08:45
        Singapore - Seattle | Wed, Oct 28 | Singapore Airlines
        DKK 4,598 DKK 6,543
        30% off
        30% off
        DKK 6,543 DKK 4,598
      • SEA 09:40
        17h 5m
        Direct
        SIN 17:45
        Seattle - Singapore | Sat, Oct 31 | Singapore Airlines
        SIN 08:55
        14h 10m
        Direct
        SEA 08:05
        Singapore - Seattle | Mon, Nov 2 | Singapore Airlines
        DKK 4,598 DKK 6,543
        30% off
        30% off
        DKK 6,543 DKK 4,598
      • SEA 08:40
        17h 5m
        Direct
        SIN 17:45
        Seattle - Singapore | Sun, Nov 8 | Singapore Airlines
        SIN 08:55
        14h 10m
        Direct
        SEA 07:05
        Singapore - Seattle | Tue, Nov 10 | Singapore Airlines
        DKK 4,598
        30% off
        DKK 6,543 DKK 4,598
      • SEA 08:40
        17h 5m
        Direct
        SIN 17:45
        Seattle - Singapore | Sat, Nov 14 | Singapore Airlines
        SIN 08:55
        14h 10m
        Direct
        SEA 07:05
        Singapore - Seattle | Sat, Nov 21 | Singapore Airlines
        DKK 4,598
        30% off
        DKK 6,543 DKK 4,598
      • SEA 08:40
        17h 5m
        Direct
        SIN 17:45
        Seattle - Singapore | Tue, Dec 1 | Singapore Airlines
        SIN 08:55
        14h 10m
        Direct
        SEA 07:05
        Singapore - Seattle | Sun, Dec 6 | Singapore Airlines
        DKK 4,598
        30% off
        DKK 6,543 DKK 4,598
      • SEA 08:40
        17h 5m
        Direct
        SIN 17:45
        Seattle - Singapore | Wed, Dec 2 | Singapore Airlines
        SIN 08:55
        14h 10m
        Direct
        SEA 07:05
        Singapore - Seattle | Sun, Dec 6 | Singapore Airlines
        DKK 4,598
        30% off
        DKK 6,543 DKK 4,598
      • SEA 10:10
        28h 50m
        1 stop
        SIN 07:00
        Seattle - Singapore | Mon, Nov 30 | Air Canada
        SIN 08:40
        16h 52m
        1 stop
        SEA 09:32
        Singapore - Seattle | Mon, Dec 7 | Air Canada
        DKK 4,694
        28% off
        DKK 6,543 DKK 4,694
      • SEA 19:05
        19h 55m
        1 stop
        SIN 07:00
        Seattle - Singapore | Sat, Nov 21 | Air Canada
        SIN 08:40
        16h 52m
        1 stop
        SEA 09:32
        Singapore - Seattle | Sat, Nov 28 | Air Canada
        DKK 4,769
        27% off
        DKK 6,543 DKK 4,769
      • SEA 15:15
        24h 45m
        1 stop
        SIN 07:00
        Seattle - Singapore | Mon, Nov 2 | Air Canada
        SIN 08:40
        16h 52m
        1 stop
        SEA 09:32
        Singapore - Seattle | Sat, Nov 7 | Air Canada
        DKK 4,776
        27% off
        DKK 6,543 DKK 4,776
      • SEA 15:15
        24h 45m
        1 stop
        SIN 07:00
        Seattle - Singapore | Sun, Nov 1 | Air Canada
        SIN 08:40
        16h 52m
        1 stop
        SEA 09:32
        Singapore - Seattle | Sat, Nov 7 | Air Canada
        DKK 4,776
        27% off
        DKK 6,543 DKK 4,776
      • SEA 19:05
        19h 55m
        1 stop
        SIN 07:00
        Seattle - Singapore | Sun, Nov 8 | Air Canada
        SIN 08:40
        16h 52m
        1 stop
        SEA 09:32
        Singapore - Seattle | Sat, Nov 14 | Air Canada
        DKK 4,776
        27% off
        DKK 6,543 DKK 4,776
      • SEA 13:00
        17h 25m
        1 stop
        SIN 14:00
        Seattle - Singapore | Tue, Oct 13 | Normal Airline
        SIN 15:00
        6h
        Direct
        SEA 16:00
        Singapore - Seattle | Thu, Oct 15 | Normal Airline
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      • Cheapest nonstop
        SEA 08:40
        17h 5m
        Direct
        SIN 17:45
        Seattle - Singapore | Wed, Dec 2 | Singapore Airlines
        DKK 2,117 DKK 3,284
        36% off
        36% off
        DKK 3,284 DKK 2,117
      • SEA 08:40
        17h 5m
        Direct
        SIN 17:45
        Seattle - Singapore | Sun, Dec 6 | Singapore Airlines
        DKK 2,156 DKK 3,284
        34% off
        34% off
        DKK 3,284 DKK 2,156
      • SEA 11:00
        21h 15m
        1 stop
        SIN 00:15
        Seattle - Singapore | Sun, Nov 29 | Korean Air
        DKK 2,279 DKK 3,284
        31% off
        31% off
        DKK 3,284 DKK 2,279
      • SEA 20:35
        31h 40m
        1 stop
        SIN 20:15
        Seattle - Singapore | Sun, Nov 29 | United Airlines
        DKK 2,307
        30% off
        DKK 3,284 DKK 2,307
      • SEA 19:05
        19h 55m
        1 stop
        SIN 07:00
        Seattle - Singapore | Mon, Nov 30 | Air Canada
        DKK 2,312
        30% off
        DKK 3,284 DKK 2,312
      • SEA 00:10
        36h 50m
        1 stop
        SIN 05:00
        Seattle - Singapore | Fri, Nov 27 | Korean Air
        DKK 2,323
        28% off
        DKK 3,284 DKK 2,323
      • SEA 15:15
        23h 45m
        1 stop
        SIN 07:00
        Seattle - Singapore | Sun, Nov 22 | Air Canada
        DKK 2,341
        28% off
        DKK 3,284 DKK 2,341
      • SEA 11:00
        21h 15m
        1 stop
        SIN 00:15
        Seattle - Singapore | Sat, Nov 28 | Korean Air
        DKK 2,352
        28% off
        DKK 3,284 DKK 2,352
      • SEA 10:40
        29h 20m
        1 stop
        SIN 08:00
        Seattle - Singapore | Sat, Nov 28 | United Airlines
        DKK 2,377
        28% off
        DKK 3,284 DKK 2,377
      • SEA 10:10
        28h 50m
        1 stop
        SIN 07:00
        Seattle - Singapore | Sat, Nov 28 | Air Canada
        DKK 2,390
        27% off
        DKK 3,284 DKK 2,390
      • SEA 12:30
        39h 55m
        1 stop
        SIN 20:25
        Seattle - Singapore | Sun, Nov 29 | Delta Air Lines
        DKK 2,392
        27% off
        DKK 3,284 DKK 2,392
      • SEA 08:40
        30h 20m
        1 stop
        SIN 07:00
        Seattle - Singapore | Sun, Nov 29 | Air Canada
        DKK 2,397
        27% off
        DKK 3,284 DKK 2,397
      • SEA 13:00
        17h 25m
        1 stop
        SIN 14:00
        Seattle - Singapore | Tue, Oct 13 | Normal Airline
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Flight fares from Seattle-Tacoma International Airport to Singapore Changi Airport are based on average airline prices for the next 3 months, according to Trip.com’s latest data.

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 DKK 2,227. It is best to avoid December, when the average price can reach DKK 5,649.

DKK 5,649
DKK 3,938
DKK 2,227
DKK 516
    Cheapest
  • DKK 3,438
    Oct
  • DKK 3,405
    Nov
  • DKK 5,649
    Dec
  • DKK 3,285
    Jan
  • DKK 3,661
    Feb
  • DKK 3,113
    Mar
  • DKK 2,227
    Apr
  • DKK 3,366
    May
  • DKK 4,449
    Jun
  • DKK 4,625
    Jul
  • DKK 3,691
    Aug
  • DKK 3,277
    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.

DKK 4,385
DKK 3,822
DKK 3,258
DKK 2,695
  • DKK 4,301
    Mon
  • DKK 3,258
    Tue
  • DKK 4,385
    Wed
  • DKK 3,582
    Thu
  • DKK 3,803
    Fri
  • DKK 3,696
    Sat
  • DKK 3,262
    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 DKK 2,147) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Singapore Airlines
From DKK 2,147
Korean Air
From DKK 2,283
Air Canada
From DKK 2,377
United Airlines
From DKK 2,379
Delta Air Lines
From DKK 2,391
American Airlines
From DKK 2,466
All Nippon Airways
From DKK 2,585
Philippine Airlines
From DKK 2,664
Asiana Airlines
From DKK 2,668
Japan Airlines
From DKK 2,917

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

    09:55

    SEA

    16h 45m

    17:40

    SIN

    - M - W T F S
    Search

  2. UA499

    Seattle-Tacoma International Airport

    07:11

    SEA

    2h 19m

    Direct

    09:30

    SFO

    S M T W T F S
    Search

  3. UA029

    San Francisco International Airport

    10:50

    SFO

    15h 45m

    Direct

    18:35

    SIN

    S M T W T F S

  4. KE042

    Seattle-Tacoma International Airport

    12:50

    SEA

    11h 50m

    Direct

    16:40

    ICN

    S M T W T F S
    Search

  5. KE645

    Incheon International Airport

    18:40

    ICN

    6h 10m

    Direct

    23:50

    SIN

    S M T W T F S

  6. UA7929

    Seattle-Tacoma International Airport

    16:30

    SEA

    10h 30m

    Direct

    19:00

    HND

    S M T W T F S
    Search

  7. UA7991

    Haneda Airport

    00:40

    HND

    7h

    Direct

    06:40

    SIN

    S M T W T F S

  8. DL197

    Seattle-Tacoma International Airport

    13:05

    SEA

    10h 45m

    Direct

    16:50

    ICN

    S M T W T F S
    Search

  9. DL7823

    Incheon International Airport

    23:30

    ICN

    6h 30m

    Direct

    05:00

    SIN

    S M T W T F S

  10. KE042

    Seattle-Tacoma International Airport

    12:50

    SEA

    11h 50m

    Direct

    16:40

    ICN

    S M T W T F S
    Search

  11. KE647

    Incheon International Airport

    23:30

    ICN

    6h 30m

    Direct

    05:00

    SIN

    S M T W T F S

  12. KE048

    Seattle-Tacoma International Airport

    00:55

    SEA

    12h 20m

    Direct

    05:15

    ICN

    - M T - T F -
    Search

  13. KE643

    Incheon International Airport

    14:20

    ICN

    6h 10m

    Direct

    19:30

    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

    23:15

    YVR

    16h 45m

    Direct

    07:00

    SIN

    - M - W T - S

  16. UA5415

    Seattle-Tacoma International Airport

    20:29

    SEA

    2h 30m

    Direct

    22:59

    SFO

    S - T W T - S
    Search

  17. UA029

    San Francisco International Airport

    10:50

    SFO

    15h 45m

    Direct

    18:35

    SIN

    S M T W T F S

  18. KE048

    Seattle-Tacoma International Airport

    00:55

    SEA

    12h 20m

    Direct

    05:15

    ICN

    - M T - T F -
    Search

  19. KE645

    Incheon International Airport

    18:40

    ICN

    6h 10m

    Direct

    23:50

    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 DKK 2,117
Cheapest return ticket price DKK 4,535

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 09:55, and the last departs at 10:15, 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 DKK 11,356 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 DKK 2,117, and round-trip fares start from DKK 4,535. The current lowest fare is a Singapore Airlines flight departing on Wed, Dec 2; 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 15 hours 55 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 DKK 4,478. 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.