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Cheap flights from Singapore to Seattle from £347

SIN — SEA
17 Oct — 24 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Singapore to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Singapore to Seattle

Mon 21/922:00 -
1 stop27h 40m
Sat 7/1111:00 -
1 stop26h 00m
Deal found 14/9£651
Sun 4/1002:00 -
1 stop32h 15m
Tue 6/1001:15 -
1 stop32h 20m
Deal found 16/9£652
Wed 7/1021:00 -
2 stops42h 36m
Sat 17/1022:15 -
2 stops44h 25m
Deal found 17/9£687
Wed 14/1021:00 -
2 stops40h 42m
Wed 21/1023:55 -
2 stops42h 45m
Deal found 15/9£688
Mon 5/1008:45 -
1 stop20h 32m
Wed 7/1020:29 -
1 stop31h 06m
Deal found 15/9£708
Sun 20/901:25 -
1 stop27h 12m
Sat 7/1121:35 -
2 stops34h 40m
Deal found 17/9£727

Find flight deals from Singapore to Seattle

Round-trip from

£651

One-way from

£347

Popular in

September

Cheapest in

November

Average price

£761
Korean Air
  • Korean Air
  • 21/10-26/10
  • 2 total stops
  • 69h 05m total
  • Singapore to Seattle
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Singapore Airlines
  • Singapore Airlines
  • 11/11-31/12
  • Nonstop
  • 14h 10m total
  • Singapore to Seattle
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£46 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Singapore to Seattle that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Wed 23/9

20:35-18:44

1 stop37h 09m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:30

Nonstop0h 00m

£381

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Tue 22/9

20:35-11:21

1 stop29h 46m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:30

Nonstop0h 00m

£381

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Tue 29/9

20:35-14:22

1 stop32h 47m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:30

Nonstop0h 00m

£381

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Wed 11/11

22:20-16:27

1 stop34h 07m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:30

Nonstop0h 00m

£381

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Fri 2/10

08:45-01:15

1 stop31h 30m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:30

Nonstop0h 00m

£381
Fastest return journey

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Tue 27/10

10:10-23:31

1 stop28h 21m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:30

Nonstop0h 00m

£385

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Tue 22/9

21:00-22:37

2 stops40h 37m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:30

Nonstop0h 00m

£389

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Wed 14/10

21:00-22:42

2 stops40h 42m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:30

Nonstop0h 00m

£390

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Thu 15/10

21:00-22:42

2 stops40h 42m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:30

Nonstop0h 00m

£390

SingaporeSeattle

SIN Singapore Changi - SEA Seattle/Tacoma Intl

SINSEA

Singapore Changi

Thu 1/10

21:00-22:37

2 stops40h 37m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:30

Nonstop0h 00m

£416

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Singapore to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Singapore with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Singapore to Seattle

How far ahead should I book a flight from Singapore to Seattle?

The price you pay for your flight from Singapore to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 7 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Singapore to Seattle?

Currently, November is the cheapest month in which you can book a flight from Singapore to Seattle (average of £585). Flying from Singapore to Seattle in September is currently the most expensive (average of £761). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SIN to SEA?

When flying from Singapore to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Singapore to Seattle?

Airfare is typical for this route at the moment.

Singapore to Seattle flights typically cost between £633 and £853 in October.
The cheapest return price found within the last 5 days was £651 on Korean Air (11 Oct–25 Oct).

Related info for your journey

  • How popular is this Singapore to Seattle flight route?

    This flight path from Singapore Changi to Seattle/Tacoma Intl was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Singapore to Seattle?

    There are many flights that can get you from Singapore to Seattle in 20h 32m. Fly via Korean Air, China Airlines, or United Airlines to get the fastest option. Airlines will cover a distance of 8059 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Singapore to Seattle that include hotel bookings?

    Yes. In addition to deals on Singapore to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Singapore to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Singapore to Seattle.

  • Can I find deals for business class flights from Singapore to Seattle?

    Yes. Cheapflights offers flight deals from Singapore to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Singapore to Seattle?

    Currently, November is the cheapest month in which you can book a flight from Singapore to Seattle (average of £585). Flying from Singapore to Seattle in September is currently the most expensive (average of £761). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Federal Way
SeaTac

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

How does Cheapflights help users find flights from Singapore to Seattle?

When you search for this flight from Singapore to Seattle, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Singapore to Seattle?

Cheapflights simply makes it quick and affordable to book flights from Singapore to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Singapore to Seattle with no change fees?

Certainly. Search results for flights to Seattle from Singapore shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Singapore to Seattle become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Singapore today and book when prices fit your budget.

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