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Seattle Tacoma Intl. Airport to Changi Airport flight

Explore the cheapest one-way and round-trip flights from Seattle Tacoma Intl. Airport to Changi Airport over the next 90 days, with one-way fares from TWD 9,558 and round-trip from TWD 22,275. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Mon, Nov 16 | Singapore Airlines
      SIN 8:55 AM
      14h 10m
      Nonstop
      SEA 7:05 AM
      Singapore - Seattle | Mon, Nov 23 | Singapore Airlines
      TWD 22,275 TWD 26,084
      15% off
      15% off
      TWD 26,084 TWD 22,275
    • SEA 9:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Mon, Nov 9 | Singapore Airlines
      SIN 8:55 AM
      14h 10m
      Nonstop
      SEA 8:05 AM
      Singapore - Seattle | Wed, Nov 11 | Singapore Airlines
      TWD 22,588 TWD 26,084
      13% off
      13% off
      TWD 26,084 TWD 22,588
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Tue, Nov 17 | Singapore Airlines
      SIN 8:55 AM
      14h 10m
      Nonstop
      SEA 7:05 AM
      Singapore - Seattle | Thu, Nov 19 | Singapore Airlines
      TWD 22,588 TWD 26,084
      13% off
      13% off
      TWD 26,084 TWD 22,588
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Mon, Nov 23 | Singapore Airlines
      SIN 8:55 AM
      14h 10m
      Nonstop
      SEA 7:05 AM
      Singapore - Seattle | Mon, Nov 30 | Singapore Airlines
      TWD 22,588
      13% off
      TWD 26,084 TWD 22,588
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Thu, Dec 10 | Singapore Airlines
      SIN 8:55 AM
      14h 10m
      Nonstop
      SEA 7:05 AM
      Singapore - Seattle | Tue, Dec 15 | Singapore Airlines
      TWD 22,588
      13% off
      TWD 26,084 TWD 22,588
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Fri, Dec 11 | Singapore Airlines
      SIN 8:55 AM
      14h 10m
      Nonstop
      SEA 7:05 AM
      Singapore - Seattle | Tue, Dec 15 | Singapore Airlines
      TWD 22,588
      13% off
      TWD 26,084 TWD 22,588
    • SEA 10:10 AM
      28h 50m
      1 stop
      SIN 7:00 AM
      Seattle - Singapore | Wed, Dec 9 | Air Canada
      SIN 8:40 AM
      16h 52m
      1 stop
      SEA 9:32 AM
      Singapore - Seattle | Wed, Dec 16 | Air Canada
      TWD 23,059
      12% off
      TWD 26,084 TWD 23,059
    • SEA 7:05 PM
      19h 55m
      1 stop
      SIN 7:00 AM
      Seattle - Singapore | Mon, Nov 30 | Air Canada
      SIN 8:40 AM
      16h 52m
      1 stop
      SEA 9:32 AM
      Singapore - Seattle | Mon, Dec 7 | Air Canada
      TWD 23,426
      10% off
      TWD 26,084 TWD 23,426
    • SEA 3:15 PM
      24h 45m
      1 stop
      SIN 7:00 AM
      Seattle - Singapore | Wed, Nov 11 | Air Canada
      SIN 8:40 AM
      16h 52m
      1 stop
      SEA 9:32 AM
      Singapore - Seattle | Wed, Nov 18 | Air Canada
      TWD 23,460
      10% off
      TWD 26,084 TWD 23,460
    • SEA 1:00 PM
      17h 25m
      1 stop
      SIN 2:00 PM
      Seattle - Singapore | Mon, Nov 2 | Normal Airline
      SIN 3:00 PM
      6h
      Nonstop
      SEA 4:00 PM
      Singapore - Seattle | Wed, Nov 4 | Normal Airline
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    • Cheapest
      SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sat, Dec 12 | Singapore Airlines
      TWD 9,558 TWD 13,167
      27% off
      27% off
      TWD 13,167 TWD 9,558
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sun, Jan 17 | Singapore Airlines
      TWD 9,607 TWD 27,080
      65% off
      65% off
      TWD 27,080 TWD 9,607
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Tue, Jan 19 | Singapore Airlines
      TWD 9,636 TWD 27,080
      64% off
      64% off
      TWD 27,080 TWD 9,636
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Wed, Jan 20 | Singapore Airlines
      TWD 9,646
      64% off
      TWD 27,080 TWD 9,646
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sat, Jan 23 | Singapore Airlines
      TWD 9,778
      64% off
      TWD 27,080 TWD 9,778
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Wed, Jan 13 | Singapore Airlines
      TWD 10,489
      61% off
      TWD 27,080 TWD 10,489
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sun, Jan 10 | Singapore Airlines
      TWD 10,641
      61% off
      TWD 27,080 TWD 10,641
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Fri, Jan 15 | Singapore Airlines
      TWD 10,660
      61% off
      TWD 27,080 TWD 10,660
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sat, Jan 16 | Singapore Airlines
      TWD 10,719
      60% off
      TWD 27,080 TWD 10,719
    • SEA 1:00 PM
      17h 25m
      1 stop
      SIN 2:00 PM
      Seattle - Singapore | Mon, Nov 2 | Normal Airline
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    • Cheapest nonstop
      SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sun, Jan 17 | Singapore Airlines
      TWD 9,607 TWD 48,526
      80% off
      80% off
      TWD 48,526 TWD 9,607
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Tue, Jan 19 | Singapore Airlines
      TWD 9,636 TWD 48,526
      80% off
      80% off
      TWD 48,526 TWD 9,636
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Wed, Jan 20 | Singapore Airlines
      TWD 9,646 TWD 48,526
      80% off
      80% off
      TWD 48,526 TWD 9,646
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sat, Jan 23 | Singapore Airlines
      TWD 9,778
      80% off
      TWD 48,526 TWD 9,778
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Wed, Jan 13 | Singapore Airlines
      TWD 10,489
      78% off
      TWD 48,526 TWD 10,489
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sun, Jan 10 | Singapore Airlines
      TWD 10,641
      78% off
      TWD 48,526 TWD 10,641
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Fri, Jan 15 | Singapore Airlines
      TWD 10,660
      78% off
      TWD 48,526 TWD 10,660
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sat, Jan 16 | Singapore Airlines
      TWD 10,719
      78% off
      TWD 48,526 TWD 10,719
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Tue, Jan 12 | Singapore Airlines
      TWD 14,937
      69% off
      TWD 48,526 TWD 14,937
    • SEA 1:00 PM
      17h 25m
      1 stop
      SIN 2:00 PM
      Seattle - Singapore | Mon, Nov 2 | Normal Airline
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    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sat, Dec 12 | Singapore Airlines
      TWD 9,558 TWD 13,167
      27% off
      27% off
      TWD 13,167 TWD 9,558
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sun, Jan 17 | Singapore Airlines
      TWD 9,607 TWD 27,080
      65% off
      65% off
      TWD 27,080 TWD 9,607
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Tue, Jan 19 | Singapore Airlines
      TWD 9,636 TWD 27,080
      64% off
      64% off
      TWD 27,080 TWD 9,636
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Wed, Jan 20 | Singapore Airlines
      TWD 9,646
      64% off
      TWD 27,080 TWD 9,646
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sat, Jan 23 | Singapore Airlines
      TWD 9,778
      64% off
      TWD 27,080 TWD 9,778
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Wed, Jan 13 | Singapore Airlines
      TWD 10,489
      61% off
      TWD 27,080 TWD 10,489
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sun, Jan 10 | Singapore Airlines
      TWD 10,641
      61% off
      TWD 27,080 TWD 10,641
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Fri, Jan 15 | Singapore Airlines
      TWD 10,660
      61% off
      TWD 27,080 TWD 10,660
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sat, Jan 16 | Singapore Airlines
      TWD 10,719
      60% off
      TWD 27,080 TWD 10,719
    • SEA 1:00 PM
      17h 25m
      1 stop
      SIN 2:00 PM
      Seattle - Singapore | Mon, Nov 2 | Normal Airline
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    • Cheapest nonstop
      SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Wed, Nov 4 | Singapore Airlines
      TWD 15,201 TWD 57,724
      74% off
      74% off
      TWD 57,724 TWD 15,201
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sat, Nov 7 | Singapore Airlines
      TWD 15,902 TWD 57,724
      72% off
      72% off
      TWD 57,724 TWD 15,902
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Tue, Nov 3 | Singapore Airlines
      TWD 17,940 TWD 57,724
      69% off
      69% off
      TWD 57,724 TWD 17,940
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sun, Nov 1 | Singapore Airlines
      TWD 19,595
      66% off
      TWD 57,724 TWD 19,595
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Fri, Nov 6 | Singapore Airlines
      TWD 27,776
      52% off
      TWD 57,724 TWD 27,776
    • SEA 7:00 AM
      21h 15m
      1 stop
      SIN 8:15 PM
      Seattle - Singapore | Wed, Nov 4 | United Airlines
      TWD 12,002
      79% off
      TWD 57,724 TWD 12,002
    • SEA 7:00 AM
      21h 15m
      1 stop
      SIN 8:15 PM
      Seattle - Singapore | Sun, Nov 1 | United Airlines
      TWD 12,326
      79% off
      TWD 57,724 TWD 12,326
    • SEA 3:40 PM
      23h 15m
      1 stop
      SIN 6:55 AM
      Seattle - Singapore | Thu, Nov 5 | United Airlines
      TWD 12,365
      79% off
      TWD 57,724 TWD 12,365
    • SEA 3:40 PM
      23h 15m
      1 stop
      SIN 6:55 AM
      Seattle - Singapore | Tue, Nov 3 | United Airlines
      TWD 12,624
      78% off
      TWD 57,724 TWD 12,624
    • SEA 1:00 PM
      17h 25m
      1 stop
      SIN 2:00 PM
      Seattle - Singapore | Mon, Nov 2 | Normal Airline
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    • Cheapest nonstop
      SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sat, Dec 12 | Singapore Airlines
      TWD 9,558 TWD 13,167
      27% off
      27% off
      TWD 13,167 TWD 9,558
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sun, Jan 17 | Singapore Airlines
      TWD 9,607 TWD 27,080
      65% off
      65% off
      TWD 27,080 TWD 9,607
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Tue, Jan 19 | Singapore Airlines
      TWD 9,636 TWD 27,080
      64% off
      64% off
      TWD 27,080 TWD 9,636
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Wed, Jan 20 | Singapore Airlines
      TWD 9,646
      64% off
      TWD 27,080 TWD 9,646
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sat, Jan 23 | Singapore Airlines
      TWD 9,778
      64% off
      TWD 27,080 TWD 9,778
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Wed, Jan 13 | Singapore Airlines
      TWD 10,489
      61% off
      TWD 27,080 TWD 10,489
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sun, Jan 10 | Singapore Airlines
      TWD 10,641
      61% off
      TWD 27,080 TWD 10,641
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Fri, Jan 15 | Singapore Airlines
      TWD 10,660
      61% off
      TWD 27,080 TWD 10,660
    • SEA 8:40 AM
      17h 5m
      Nonstop
      SIN 5:45 PM
      Seattle - Singapore | Sat, Jan 16 | Singapore Airlines
      TWD 10,719
      60% off
      TWD 27,080 TWD 10,719
    • SEA 1:00 PM
      17h 25m
      1 stop
      SIN 2:00 PM
      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 Intl. Airport to Changi Airport

What is the cheapest month for one-way flights from Seattle Tacoma Intl. Airport to Changi Airport?

Data is based on average one-way flight prices from Seattle Tacoma Intl. Airport to Changi Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from Seattle Tacoma Intl. Airport to Changi Airport, the best time to buy is in April, with an average price of TWD 10,940. You’ll want to avoid December, when the average price can reach as high as TWD 27,750.

TWD 27,750
TWD 19,345
TWD 10,940
TWD 2,535
    Cheapest
  • TWD 14,548
    Oct
  • TWD 16,727
    Nov
  • TWD 27,750
    Dec
  • TWD 16,136
    Jan
  • TWD 17,986
    Feb
  • TWD 15,290
    Mar
  • TWD 10,940
    Apr
  • TWD 16,535
    May
  • TWD 21,856
    Jun
  • TWD 22,719
    Jul
  • TWD 18,132
    Aug
  • TWD 16,098
    Sep

What is the cheapest day of the week to fly from Seattle Tacoma Intl. Airport to Changi Airport?

The data is based on the past 12 months and shows the average ticket prices from Seattle Tacoma Intl. Airport to 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 day to depart from Seattle Tacoma Intl. Airport to Changi Airport is Tuesday, with average fares typically lower than other days. You’ll want to avoid flying on Wednesday, as ticket prices are usually the highest that day.

TWD 21,860
TWD 18,876
TWD 15,892
TWD 12,908
  • TWD 20,544
    Mon
  • TWD 15,892
    Tue
  • TWD 21,860
    Wed
  • TWD 17,991
    Thu
  • TWD 18,645
    Fri
  • TWD 18,247
    Sat
  • TWD 15,977
    Sun

Which airline offers the cheapest flights from Seattle Tacoma Intl. Airport to Changi Airport?

The cheapest airline flying from Seattle Tacoma Intl. Airport to Changi Airport is Singapore Airlines (from TWD 10,445) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Singapore Airlines
From TWD 10,445
Korean Air
From TWD 11,552
United Airlines
From TWD 11,674
Air Canada
From TWD 11,738
Delta Air Lines
From TWD 12,115
All Nippon Airways
From TWD 12,380
Asiana Airlines
From TWD 13,056
Philippine Airlines
From TWD 13,178
American Airlines
From TWD 13,364
Japan Airlines
From TWD 14,432

Find more flights and airlines

What is the flight schedule from Seattle Tacoma Intl. Airport to 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 Intl. Airport

    9:40 AM

    SEA

    17h 5m

    5:45 PM

    SIN

    - M T W T F S
    Search

  2. KE042

    Seattle Tacoma Intl. Airport

    11:00 AM

    SEA

    11h 55m

    Nonstop

    3:55 PM

    ICN

    S M T W T F S
    Search

  3. KE645

    Incheon Intl. Airport

    6:35 PM

    ICN

    6h 40m

    Nonstop

    12:15 AM

    SIN

    S M T W T F S

  4. UA499

    Seattle Tacoma Intl. Airport

    7:00 AM

    SEA

    2h 19m

    Nonstop

    9:19 AM

    SFO

    S M T W T F S
    Search

  5. UA029

    San Francisco Intl. Airport

    10:50 AM

    SFO

    15h 45m

    Nonstop

    6:35 PM

    SIN

    S M T W T F S

  6. KE042

    Seattle Tacoma Intl. Airport

    11:00 AM

    SEA

    11h 55m

    Nonstop

    3:55 PM

    ICN

    S M T W T F S
    Search

  7. KE647

    Incheon Intl. Airport

    11:15 PM

    ICN

    6h 45m

    Nonstop

    5:00 AM

    SIN

    S M T W T F S

  8. KE048

    Seattle Tacoma Intl. Airport

    12:10 AM

    SEA

    12h 10m

    Nonstop

    5:20 AM

    ICN

    S M T - T F -
    Search

  9. KE643

    Incheon Intl. Airport

    2:35 PM

    ICN

    6h 50m

    Nonstop

    8:25 PM

    SIN

    S M T W T F S

  10. KE048

    Seattle Tacoma Intl. Airport

    12:10 AM

    SEA

    12h 10m

    Nonstop

    5:20 AM

    ICN

    S M T - T F -
    Search

  11. KE645

    Incheon Intl. Airport

    6:35 PM

    ICN

    6h 40m

    Nonstop

    12:15 AM

    SIN

    S M T W T F S

  12. UA1334

    Seattle Tacoma Intl. Airport

    7:35 PM

    SEA

    2h 15m

    Nonstop

    9:50 PM

    SFO

    S M T W T - S
    Search

  13. UA029

    San Francisco Intl. Airport

    10:50 AM

    SFO

    15h 45m

    Nonstop

    6:35 PM

    SIN

    S M T W T F S

  14. KE048

    Seattle Tacoma Intl. Airport

    12:10 AM

    SEA

    12h 10m

    Nonstop

    5:20 AM

    ICN

    S M T - T F -
    Search

  15. KE647

    Incheon Intl. Airport

    11:15 PM

    ICN

    6h 45m

    Nonstop

    5:00 AM

    SIN

    S M T W T F S

  16. DL197

    Seattle Tacoma Intl. Airport

    1:05 PM

    SEA

    10h 45m

    Nonstop

    4:50 PM

    ICN

    S M T W T F S
    Search

  17. DL7819

    Incheon Intl. Airport

    2:20 PM

    ICN

    6h 10m

    Nonstop

    7:30 PM

    SIN

    S M T W T F S

  18. KE042

    Seattle Tacoma Intl. Airport

    11:00 AM

    SEA

    11h 55m

    Nonstop

    3:55 PM

    ICN

    S M T W T F S
    Search

  19. KE643

    Incheon Intl. Airport

    2:35 PM

    ICN

    6h 50m

    Nonstop

    8:25 PM

    SIN

    S M T W T F S
Find more flights and airlines

About Seattle Tacoma Intl. Airport and Changi Airport

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

Flight distance 12,993.6 km
Cheapest one-way ticket price TWD 9,558
Cheapest return ticket price TWD 22,275

FAQs for Seattle Tacoma Intl. Airport to Changi Airport Flights

  • How many daily flights are there from Seattle Tacoma Intl. Airport (SEA) to Changi Airport (SIN)?

    There are around 1 daily flights from Seattle Tacoma Intl. Airport (SEA) to Changi Airport (SIN).
  • The earliest flight from Seattle Tacoma Intl. Airport to 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 Intl. Airport (SEA) to Changi Airport (SIN) is quite popular. Without considering departure times or holidays, tickets cost around TWD 63,008 in December, the most expensive month to book this route.
  • The earliest flight departs from Seattle Tacoma Intl. Airport (SEA) at 08:45 and arrives in Changi Airport (SIN) at 17:45.
    • The distance from Singapore Changi Airport to downtown is about 17 km. It takes about 30 minutes by taxi.
    • The distance from Seletar Airport to downtown is about 15 km. It takes about 30 minutes by taxi.
  • Singapore Airlines is a very popular airline operating an average of 582 flights per month.
  • One-way flights from Seattle Tacoma Intl. Airport to Changi Airport currently start from TWD 9,558, and round-trip fares start from TWD 22,275. The current lowest fare is a Singapore Airlines flight departing on Sat, Dec 12; prices may vary depending on availability.
  • Yes. Singapore Airlines operate direct flights from Seattle Tacoma Intl. Airport to 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 Intl. Airport to Changi Airport is TWD 23,208. Prices may vary depending on the departure date, airline, and availability.
  • Seattle Tacoma Intl. Airport to Changi Airport operates around 5 weekly flights, mainly by Singapore Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Seattle Tacoma Intl. Airport and 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.

Popular Destinations

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 in 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, WLAN, 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 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.