Cheap Flights from Seattle, WA to Singapore from $424

Return flight: Singapore – Seattle

On Cheapflightsplus.com you will find 1 direct and 999 connecting flights from Seattle to Singapore. You can compare airfare deals from 30 airlines and multiple travel sites from $424, book and save on cheap plane tickets and last minute offers. Also check out SEA-SIN flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Seattle to Singapore Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $424 (one-way), $727 (round-trip).
Direct flights
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Full flight schedule will help you in detecting at what time planes fly from Seattle to Singapore. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
01:40 — 18:35
+1 day
01:40 — 05:05 CI21 China Airlines
Seattle — Taipei
2h 10m stop
07:15 — 09:40 CI781 China Airlines
Taipei — Ho Chi Minh City
5h 55m stop
15:35 — 18:35 TR323 Tiger Airways
Ho Chi Minh City — Singapore
25h 55m
including layover
Find flight
from$478
01:40 — 21:15
+1 day
01:40 — 05:05 CI21 China Airlines
Seattle — Taipei
2h 10m stop
07:15 — 09:40 CI781 China Airlines
Taipei — Ho Chi Minh City
8h 35m stop
18:15 — 21:15 TR303 Tiger Airways
Ho Chi Minh City — Singapore
28h 35m
including layover
Find flight
from$489
07:00 — 18:25
+1 day
07:00 — 09:19 UA2640 United Airlines
Seattle — San Francisco
1h 26m stop
11:00 — 18:25 UA29 United Airlines
San Francisco — Singapore
20h 25m
including layover
Find flight
from$489
08:41 — 00:20
+2 days
08:41 — 09:38 JL6334 Japan Airlines - JAL
Seattle — Vancouver
4h 27m stop
13:50 — 15:50 JL17 Japan Airlines - JAL
Vancouver — Tokyo
2h 15m stop
18:05 — 00:20 JL711 Japan Airlines - JAL
Tokyo — Singapore
24h 39m
including layover
Find flight
from$465
10:15 — 17:35
+1 day
10:15 — 17:35 SQ27 Singapore Airlines
Seattle — Singapore
16h 20m
Find flight
from$429
13:20 — 23:40
+2 days
11:00 — 15:55 KE42 Korean Air
Seattle — Seoul
2h stop
18:35 — 00:10 KE645 Korean Air
Seoul — Singapore
19h 20m
including layover
Find flight
from$474
13:20 — 05:00
+2 days
11:00 — 15:55 KE42 Korean Air
Seattle — Seoul
6h 55m stop
23:10 — 05:00 KE647 Korean Air
Seoul — Singapore
24h 40m
including layover
Find flight
from$474
13:20 — 19:55
+2 days
11:00 — 15:55 KE42 Korean Air
Seattle — Seoul
22h 5m stop
14:35 — 20:25 KE643 Korean Air
Seoul — Singapore
39h 35m
including layover
Find flight
from$474
13:20 — 21:30
+2 days
12:50 — 16:40 KE42 Korean Air
Seattle — Seoul
23h 30m stop
16:10 — 21:30 OZ751 Asiana Airlines
Seoul — Singapore
41h 10m
including layover
Find flight
from$474
14:30 — 21:30
+2 days
12:40 — 17:50 OZ271 Asiana Airlines
Seattle — Seoul
22h 15m stop
16:20 — 21:55 OZ751 Asiana Airlines
Seoul — Singapore
40h
including layover
Find flight
from$429
16:30 — 06:40
+2 days
15:40 — 19:15 NH117 All Nippon Airways
Seattle — Tokyo
5h 40m stop
00:25 — 06:55 NH843 All Nippon Airways
Tokyo — Singapore
23h 10m
including layover
Find flight
from$471
16:30 — 17:15
+2 days
15:40 — 19:15 NH117 All Nippon Airways
Seattle — Tokyo
15h 55m stop
10:50 — 17:35 NH841 All Nippon Airways
Tokyo — Singapore
33h 45m
including layover
Find flight
from$472
16:30 — 00:45
+3 days
16:30 — 19:00 NH117 All Nippon Airways
Seattle — Tokyo
23h 40m stop
18:25 — 00:45 NH801 All Nippon Airways
Tokyo — Singapore
41h 15m
including layover
Find flight
from$486
21:40 — 23:40
+3 days
21:40 — 23:58 HA6897 Hawaiian Airlines
Seattle — San Francisco
13h 11m stop
13:10 — 17:20 KE24 Korean Air
San Francisco — Seoul
1h 20m stop
18:40 — 23:40 KE645 Korean Air
Seoul — Singapore
35h
including layover
Find flight
from$473
21:44 — 23:40
+3 days
21:44 — 23:59 AS1152 Alaska Airlines
Seattle — San Francisco
13h 11m stop
13:10 — 17:20 KE24 Korean Air
San Francisco — Seoul
1h 20m stop
18:40 — 23:40 KE645 Korean Air
Seoul — Singapore
34h 56m
including layover
Find flight
from$477
*Departure and arrival times - local. Updated on September 12, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Seattle to Singapore depends on and how to choose the most interesting flight option for you.

Distance between Seattle and Singapore is 12980 miles. Time difference between the cities is 4h. Airplanes depart 00:50 to 23:59 from 3 Seattle airports and arrive 00:50 to 23:59 to 4 Singapore airports. Average flight time is 16h 20m.

  • The fastest flight 16h 20m
  • Average flight time 16h 20m
  • The earliest flight 00:50
  • The latest flight 23:59
  • Distance 8066 ml

Popular Airlines on the Route

The flight Seattle — Singapore is served by 30 regular airlines and 4 low-cost airlines. Most of the flights on this route are operated by Japan Airlines - JAL - 20 departures per week at the price of from $ 465 . And the most expensive tickets are offered by Air Canada airline - from $ 1612.

Direct flights

There are 1 nonstop flights on the route. The fastest direct flight is SQ27 by Singapore Airlines takes 16h 20m.

  • SQ - Singapore Airlines
    from $429
    Find
See more direct flights

Connecting Flights

There are 999 flights with layovers on the route. The fastest connecting flight is PR125 by Philippine Airlines takes 18h 50m.

  • JL - Japan Airlines - JAL
    from $465
    Find
  • PR - Philippine Airlines
    from $535
    Find
  • UA - United Airlines
    from $489
    Find
  • HU - Hainan Airlines
    from $731
    Find
  • JX - Jambojet
    from $490
    Find
  • BR - EVA Airways Corporation
    from $547
    Find
  • KE - Korean Air
    from $474
    Find
  • MH - Malaysia Airlines
    from $951
    Find
  • WS - WestJet
    from $665
    Find
  • SQ - Singapore Airlines
    from $878
    Find
  • CA - Air China Limited
    from $943
    Find
  • QR - Qatar Airways
    from $571
    Find
See more connecting flights

Airports

You can fly from Seattle to Singapore from 3 airports (Boeing Field International Airport, Seattle-Tacoma Intl, Kenmore Air Harbor SPB).

Seattle airports

  • Boeing Field International Airport-BFI
    Find
  • Seattle-Tacoma Intl-SEA
    from $429
    Find
  • Kenmore Air Harbor SPB-LKE
    Find

Singapore airports

  • Changi-SIN
    Find
  • Paya Lebar-QPG
    Find
  • Seletar-XSP
    Find
  • Tengah-TGA
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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