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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 €264 and round-trip from €621. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Tue, Nov 3 | Singapore Airlines
      SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Sat, Nov 7 | Singapore Airlines
      €621 €722
      14% off
      14% off
      €722 €621
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Nov 4 | Singapore Airlines
      SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Sat, Nov 7 | Singapore Airlines
      €621 €722
      14% off
      14% off
      €722 €621
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Tue, Nov 10 | Singapore Airlines
      SIN 08:55
      14h 10m
      Direct
      SEA 07:05
      Singapore - Seattle | Tue, Nov 17 | Singapore Airlines
      €621 €722
      14% off
      14% off
      €722 €621
    • 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 | Wed, Dec 2 | Singapore Airlines
      €621
      14% off
      €722 €621
    • 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 | Wed, Dec 2 | Singapore Airlines
      €621
      14% off
      €722 €621
    • SEA 10:10
      28h 50m
      1 stop
      SIN 07:00
      Seattle - Singapore | Thu, Nov 26 | Air Canada
      SIN 08:40
      16h 52m
      1 stop
      SEA 09:32
      Singapore - Seattle | Thu, Dec 3 | Air Canada
      €634
      12% off
      €722 €634
    • SEA 19:05
      19h 55m
      1 stop
      SIN 07:00
      Seattle - Singapore | Tue, Nov 17 | Air Canada
      SIN 08:40
      16h 52m
      1 stop
      SEA 09:32
      Singapore - Seattle | Tue, Nov 24 | Air Canada
      €644
      11% off
      €722 €644
    • SEA 19:05
      19h 55m
      1 stop
      SIN 07:00
      Seattle - Singapore | Wed, Nov 4 | Air Canada
      SIN 08:40
      16h 52m
      1 stop
      SEA 09:32
      Singapore - Seattle | Tue, Nov 10 | Air Canada
      €645
      11% off
      €722 €645
    • SEA 19:05
      19h 55m
      1 stop
      SIN 07:00
      Seattle - Singapore | Wed, Nov 11 | Air Canada
      SIN 08:40
      16h 52m
      1 stop
      SEA 09:32
      Singapore - Seattle | Tue, Nov 17 | Air Canada
      €649
      10% off
      €722 €649
    • 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
      €264 €745
      65% off
      65% off
      €745 €264
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Tue, Jan 19 | Singapore Airlines
      €265 €745
      64% off
      64% off
      €745 €265
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 20 | Singapore Airlines
      €265 €745
      64% off
      64% off
      €745 €265
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 23 | Singapore Airlines
      €269
      64% off
      €745 €269
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Nov 28 | Singapore Airlines
      €287
      23% off
      €372 €287
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 13 | Singapore Airlines
      €289
      61% off
      €745 €289
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Jan 10 | Singapore Airlines
      €293
      61% off
      €745 €293
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Fri, Jan 15 | Singapore Airlines
      €293
      61% off
      €745 €293
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 16 | Singapore Airlines
      €295
      60% off
      €745 €295
    • 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
      €264 €745
      65% off
      65% off
      €745 €264
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Tue, Jan 19 | Singapore Airlines
      €265 €745
      64% off
      64% off
      €745 €265
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 20 | Singapore Airlines
      €265 €745
      64% off
      64% off
      €745 €265
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 23 | Singapore Airlines
      €269
      64% off
      €745 €269
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Nov 28 | Singapore Airlines
      €287
      23% off
      €372 €287
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 13 | Singapore Airlines
      €289
      61% off
      €745 €289
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Jan 10 | Singapore Airlines
      €293
      61% off
      €745 €293
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Fri, Jan 15 | Singapore Airlines
      €293
      61% off
      €745 €293
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 16 | Singapore Airlines
      €295
      60% off
      €745 €295
    • 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
      €264 €1,334
      80% off
      80% off
      €1,334 €264
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Tue, Jan 19 | Singapore Airlines
      €265 €1,334
      80% off
      80% off
      €1,334 €265
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 20 | Singapore Airlines
      €265 €1,334
      80% off
      80% off
      €1,334 €265
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 23 | Singapore Airlines
      €269
      80% off
      €1,334 €269
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 13 | Singapore Airlines
      €289
      78% off
      €1,334 €289
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Jan 10 | Singapore Airlines
      €293
      78% off
      €1,334 €293
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Fri, Jan 15 | Singapore Airlines
      €293
      78% off
      €1,334 €293
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 16 | Singapore Airlines
      €295
      78% off
      €1,334 €295
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Tue, Jan 12 | Singapore Airlines
      €411
      69% off
      €1,334 €411
    • 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
      €264 €745
      65% off
      65% off
      €745 €264
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Tue, Jan 19 | Singapore Airlines
      €265 €745
      64% off
      64% off
      €745 €265
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 20 | Singapore Airlines
      €265 €745
      64% off
      64% off
      €745 €265
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 23 | Singapore Airlines
      €269
      64% off
      €745 €269
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Nov 28 | Singapore Airlines
      €287
      23% off
      €372 €287
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Jan 13 | Singapore Airlines
      €289
      61% off
      €745 €289
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Jan 10 | Singapore Airlines
      €293
      61% off
      €745 €293
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Fri, Jan 15 | Singapore Airlines
      €293
      61% off
      €745 €293
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Jan 16 | Singapore Airlines
      €295
      60% off
      €745 €295
    • 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 | Tue, Nov 3 | Singapore Airlines
      €411 €1,393
      70% off
      70% off
      €1,393 €411
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sat, Nov 7 | Singapore Airlines
      €430 €1,393
      69% off
      69% off
      €1,393 €430
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Wed, Nov 4 | Singapore Airlines
      €431 €1,393
      69% off
      69% off
      €1,393 €431
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Sun, Nov 1 | Singapore Airlines
      €648
      53% off
      €1,393 €648
    • SEA 08:40
      17h 5m
      Direct
      SIN 17:45
      Seattle - Singapore | Fri, Nov 6 | Singapore Airlines
      €730
      48% off
      €1,393 €730
    • SEA 07:00
      21h 15m
      1 stop
      SIN 20:15
      Seattle - Singapore | Sun, Nov 1 | United Airlines
      €326
      77% off
      €1,393 €326
    • SEA 07:00
      21h 15m
      1 stop
      SIN 20:15
      Seattle - Singapore | Wed, Nov 4 | United Airlines
      €330
      76% off
      €1,393 €330
    • SEA 15:40
      23h 15m
      1 stop
      SIN 06:55
      Seattle - Singapore | Thu, Nov 5 | United Airlines
      €335
      76% off
      €1,393 €335
    • SEA 15:40
      23h 15m
      1 stop
      SIN 06:55
      Seattle - Singapore | Tue, Nov 3 | United Airlines
      €381
      73% off
      €1,393 €381
    • SEA 13:00
      17h 25m
      1 stop
      SIN 14:00
      Seattle - Singapore | Mon, Nov 2 | Normal Airline
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      Find more flights

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 €301. It is best to avoid December, when the average price can reach €763.

€763
€532
€301
€70
    Cheapest
  • €400
    Oct
  • €460
    Nov
  • €763
    Dec
  • €444
    Jan
  • €495
    Feb
  • €420
    Mar
  • €301
    Apr
  • €455
    May
  • €601
    Jun
  • €625
    Jul
  • €499
    Aug
  • €443
    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.

€601
€519
€437
€355
  • €565
    Mon
  • €437
    Tue
  • €601
    Wed
  • €495
    Thu
  • €513
    Fri
  • €502
    Sat
  • €439
    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 €274) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Singapore Airlines
From €274
Korean Air
From €324
United Airlines
From €326
Delta Air Lines
From €336
All Nippon Airways
From €344
Asiana Airlines
From €348
Philippine Airlines
From €355
Air Canada
From €356
American Airlines
From €371
Cathay Pacific
From €399

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 €264
Cheapest return ticket price €621

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 €1,731 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 €287, and round-trip fares start from €621. The current lowest fare is a Singapore Airlines flight departing on Sat, Nov 28; 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 €638. 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 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.