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Cheap flights from Singapore to Seattle from S$ 638

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19-10. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — SEA
28 Aug — 4 Sep1
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
Explore the most affordable flight options available from Singapore to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 July 2026.

Thu 3-907:30
SIN
-
SEA
1 stop18h 10m
Korean Air
Tue 8-912:50
SEA
-
SIN
1 stop20h 05m
Korean Air
Deal found 27-7S$ 976
Fri 11-907:30
SIN
-
SEA
1 stop18h 10m
Korean Air
Fri 18-912:50
SEA
-
SIN
1 stop20h 05m
Korean Air
Deal found 28-7S$ 980
Thu 10-907:00
SIN
-
SEA
1 stop26h 32m
Air Canada
Tue 15-910:50
SEA
-
SIN
1 stop27h 25m
Air Canada
Deal found 25-7S$ 989
Tue 29-907:00
SIN
-
SEA
1 stop26h 32m
Air Canada
Wed 14-1015:00
SEA
-
SIN
2 stops29h 15m
Air Canada
Deal found 28-7S$ 996
Sat 26-907:00
SIN
-
SEA
1 stop18h 05m
Air Canada
Sun 11-1019:20
SEA
-
SIN
1 stop18h 55m
Air Canada
Deal found 25-7S$ 1,002
Sun 4-1007:00
SIN
-
SEA
1 stop26h 32m
Air Canada
Sun 11-1005:40
SEA
-
SIN
1 stop32h 35m
Air Canada
Deal found 27-7S$ 1,003
Tue 15-920:50
SIN
-
SEA
2 stops28h 15m
Air Canada
Fri 25-915:00
SEA
-
SIN
1 stop23h 15m
Air Canada
Deal found 27-7S$ 1,004
Sun 27-907:00
SIN
-
SEA
1 stop18h 05m
Air Canada
Mon 12-1019:20
SEA
-
SIN
2 stops28h 10m
Air Canada
Deal found 26-7S$ 1,005
Mon 28-906:15
SIN
-
SEA
2 stops23h 07m
Air Canada
Tue 13-1019:20
SEA
-
SIN
1 stop18h 55m
Air Canada
Deal found 27-7S$ 1,018

Find flight deals from Singapore to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Singapore (SIN) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 July 2026.

Round-trip from

S$ 976

One-way from

S$ 638

Popular in

May

Cheapest in

November

Average price

S$ 1,106
Korean Air
  • Korean Air
  • 3-9-8-9
  • 2 total stops
  • 38h 15m total
  • Singapore to Seattle
Search Deals
Korean Air
  • Korean Air
  • 19-10
  • 1 total stop
  • 18h 10m total
  • Singapore to Seattle
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (S$ 120 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (S$ 22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Singapore to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 29 July 2026.
Use the filters below to find and compare flights from Singapore to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 7-9

20:35-11:21

1 stop29h 46m

Seattle/Tacoma Intl

Tue 15-9

09:00-06:15

1 stop30h 15m

S$ 1,056

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 15-9

22:00-10:40

1 stop27h 40m

Seattle/Tacoma Intl

Thu 5-11

11:00-05:00

1 stop26h 00m

S$ 1,058

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 12-8

08:45-23:26

1 stop29h 41m

Seattle/Tacoma Intl

Fri 14-8

07:00-06:40

2 stops32h 40m

S$ 1,198

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 15-9

22:00-20:01

2 stops37h 01m

Seattle/Tacoma Intl

Thu 5-11

21:35-05:00

2 stops39h 25m

S$ 1,202
Fastest return journey

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 2-12

14:45-15:05

1 stop16h 20m

Seattle/Tacoma Intl

Wed 30-12

23:45-13:25

1 stop21h 40m

S$ 1,214

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 27-8

08:45-18:29

1 stop24h 44m

Seattle/Tacoma Intl

Mon 28-9

19:25-06:15

1 stop19h 50m

S$ 1,214

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 28-8

14:00-16:35

1 stop17h 35m

Seattle/Tacoma Intl

Fri 25-9

01:15-12:40

1 stop20h 25m

S$ 1,268

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 30-11

14:45-15:05

1 stop16h 20m

Seattle/Tacoma Intl

Sat 2-1

23:45-13:25

1 stop21h 40m

S$ 1,294

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 7-9

22:00-20:39

2 stops37h 39m

Seattle/Tacoma Intl

Mon 14-9

07:15-23:55

2 stops25h 40m

S$ 1,317
Cheapest one-way

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 26-8

20:35-18:29

1 stop36h 54m

S$ 653

Flights are sorted by cheapest return flights first.

Deals found on 27-7

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 24 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 S$ 1,042). Flying from Singapore to Seattle in May is currently the most expensive (average of S$ 1,331). 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?

Find hourly flight availability from Singapore to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 July 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Singapore to Seattle as you normally would.

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

Airfare is below average for this route at the moment.

Singapore to Seattle flights typically cost between S$ 1,086 and S$ 1,270 in September.
The cheapest return price found within the last 5 days was S$ 976 on Korean Air (3 Sept–8 Sept).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 29 July 2026.
Get a feel of what it's like to fly with STARLUX Airlines,EVA Air, andSingapore Airlines from Singapore to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.8
Very Good
Check prices

Food

8.6

Overall

8.8

Boarding

8.9

Entertainment

8.7

Comfort

8.8

Crew

9.1

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
STARLUX Airlines
8.8
Very Good
STARLUX Airlines
8.8
Very Good
Check prices

Food

8.6

Overall

8.8

Boarding

8.9

Entertainment

8.7

Comfort

8.8

Crew

9.1

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
EVA Air
8.5
Very Good
1,506 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Food

8.6

Overall

8.8

Boarding

8.9

Entertainment

8.7

Comfort

8.8

Crew

9.1

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
Singapore Airlines
8.2
Very Good
1,584 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Food

8.6

Overall

8.8

Boarding

8.9

Entertainment

8.7

Comfort

8.8

Crew

9.1

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
United Airlines
7.4
Good
10,051 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Food

8.6

Overall

8.8

Boarding

8.9

Entertainment

8.7

Comfort

8.8

Crew

9.1

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
Air Canada
7.1
Good
11,402 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Food

8.6

Overall

8.8

Boarding

8.9

Entertainment

8.7

Comfort

8.8

Crew

9.1

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.

Related info for your journey

Find useful and relevant information for your journey from Singapore to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Singapore to Seattle flight route?

    Flights from Singapore Changi to Seattle/Tacoma Intl have been viewed 49 times in the past calendar month.

  • How long is the flight from Singapore to Seattle?

    There are many flights that can get you from Singapore to Seattle in 27h 40m. Fly via United Airlines or Korean Air to get the fastest option. There are 12970 km between Singapore and Seattle. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Singapore to Seattle round-trip?

    Flying on China Airlines is currently your cheapest option to Seattle, with prices starting at S$ 540. Additional round-trip tickets that might be worth considering are offered by Air Canada and United Airlines, with the lowest prices starting at S$ 837 and S$ 837, respectively. You may be able to fly from Singapore to Seattle for 52% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Singapore to Seattle one-way?

    To fly one-way, consider booking your trip with Singapore Airlines, which is currently one of the cheapest options available, starting at S$ 517. Air Canada flights start at S$ 592 while deals on ANA start at S$ 670 one-way.

  • 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 S$ 1,042). Flying from Singapore to Seattle in May is currently the most expensive (average of S$ 1,331). 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
Leavenworth

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Fly from Singapore to Seattle on these airlines

Choose from the following airlines for your flight from Singapore to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 29 July 2026.
Singapore Airlines flights from Singapore Changi to Seattle/Tacoma Intl
United Airlines flights from Singapore Changi to Seattle/Tacoma Intl

Top 6 airlines flying from Singapore to Seattle

Discover the top 6 airlines that operate flights from Singapore to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 29 July 2026.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapestS$ 540AverageS$ 1,118FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
Air CanadaCheapestS$ 837AverageS$ 1,075FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestS$ 837AverageS$ 1,082FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Singapore AirlinesCheapestS$ 901AverageS$ 1,353FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
STARLUX AirlinesCheapestS$ 1,028AverageS$ 1,146FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapestS$ 1,072AverageS$ 1,261FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from Singapore today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Singapore to Seattle for you. Better yet — we are completely free to use.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Singapore to Seattle flexibly with Cheapflights today.

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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