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Cheap flights from Singapore to Seattle from S$ 631

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 29-9. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — SEA
4 Sep — 11 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 5 August 2026.

Fri 11-907:30 -
1 stop18h 10m
Sun 27-912:50 -
1 stop20h 05m
Deal found 31-7S$ 971
Thu 10-907:00 -
1 stop26h 32m
Tue 15-910:50 -
1 stop27h 25m
Deal found 31-7S$ 972
Thu 10-922:00 -
1 stop27h 40m
Tue 15-912:50 -
1 stop20h 05m
Deal found 2-8S$ 975
Fri 27-1108:40 -
1 stop16h 47m
Mon 7-1210:10 -
2 stops33h 05m
Deal found 1-8S$ 993
Thu 10-907:00 -
1 stop22h 22m
Fri 18-915:00 -
1 stop23h 15m
Deal found 31-7S$ 995
Sun 4-1007:00 -
1 stop17h 52m
Mon 19-1019:20 -
2 stops28h 10m
Deal found 2-8S$ 1,002
Sun 4-1007:00 -
1 stop30h 42m
Sun 18-1019:20 -
1 stop18h 55m
Deal found 4-8S$ 1,004
Thu 10-907:00 -
1 stop30h 47m
Tue 15-915:00 -
2 stops29h 45m
Deal found 2-8S$ 1,009
Sat 3-1022:50 -
2 stops34h 42m
Sun 18-1015:00 -
1 stop23h 15m
Deal found 1-8S$ 1,012

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 5 August 2026.

Round-trip from

S$ 971

One-way from

S$ 631

Popular in

May

Cheapest in

November

Average price

S$ 1,130
Korean Air
  • Korean Air
  • 11-9-27-9
  • 2 total stops
  • 38h 15m total
  • Singapore to Seattle
Search Deals
Singapore Airlines
  • Singapore Airlines
  • 29-9
  • Nonstop
  • 14h 45m total
  • Singapore to Seattle
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (S$ 117 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (S$ 23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 5 August 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 19-10

07:30-10:40

1 stop18h 10m

Seattle/Tacoma Intl

Mon 2-11

11:00-00:10

1 stop21h 10m

S$ 1,109

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 13-9

21:00-20:44

2 stops38h 44m

Seattle/Tacoma Intl

Sun 20-9

23:42-09:40

2 stops42h 58m

S$ 1,177

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 15-9

21:00-20:44

2 stops38h 44m

Seattle/Tacoma Intl

Thu 5-11

06:12-09:35

2 stops35h 23m

S$ 1,177

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 4-11

19:25-00:35

2 stops45h 10m

Seattle/Tacoma Intl

Sun 15-11

06:12-09:35

2 stops35h 23m

S$ 1,180

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 17-8

22:50-18:32

2 stops34h 42m

Seattle/Tacoma Intl

Fri 28-8

10:40-05:15

1 stop27h 35m

S$ 1,193

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 4-11

01:35-09:00

1 stop23h 25m

Seattle/Tacoma Intl

Thu 21-1

17:55-20:25

2 stops34h 30m

S$ 1,195

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 21-9

21:00-20:44

2 stops38h 44m

Seattle/Tacoma Intl

Sat 7-11

06:12-09:35

2 stops35h 23m

S$ 1,218

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 25-9

21:00-22:37

2 stops40h 37m

Seattle/Tacoma Intl

Sat 10-10

06:12-09:40

2 stops36h 28m

S$ 1,226

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 23-9

14:00-16:10

1 stop17h 10m

Seattle/Tacoma Intl

Sat 26-9

01:15-12:40

1 stop20h 25m

S$ 1,265
Fastest return journey

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 26-12

09:00-07:10

Nonstop14h 10m

Seattle/Tacoma Intl

Sat 9-1

08:45-17:45

Nonstop17h 00m

S$ 1,404

Flights are sorted by cheapest return flights first.

Deals found on 31-7

Showing 1-10 of 20 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$ 1,034). Flying from Singapore to Seattle in May is currently the most expensive (average of S$ 1,321). 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 5 August 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$ 1,077 and S$ 1,261 in September.
The cheapest return price found within the last 5 days was S$ 972 on Air Canada (10 Sept–15 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 5 August 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

Boarding

8.9

Comfort

8.8

Crew

9.1

Entertainment

8.7

Food

8.6

Overall

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
STARLUX Airlines
8.8
Very Good
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.8

Crew

9.1

Entertainment

8.7

Food

8.6

Overall

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
EVA Air
8.5
Very Good
1,512 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.8

Crew

9.1

Entertainment

8.7

Food

8.6

Overall

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
Singapore Airlines
8.2
Very Good
1,584 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.8

Crew

9.1

Entertainment

8.7

Food

8.6

Overall

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
United Airlines
7.4
Good
10,068 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.8

Crew

9.1

Entertainment

8.7

Food

8.6

Overall

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
Air Canada
7.1
Good
11,429 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.8

Crew

9.1

Entertainment

8.7

Food

8.6

Overall

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

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 48 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 18h 10m. Fly via Korean Air or Air Canada 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$ 535. Additional round-trip tickets that might be worth considering are offered by United Airlines and Air Canada, with the lowest prices starting at S$ 721 and S$ 830, 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$ 513. Air Canada flights start at S$ 587 while deals on ANA start at S$ 664 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$ 1,034). Flying from Singapore to Seattle in May is currently the most expensive (average of S$ 1,321). 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 5 August 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 5 August 2026.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapestS$ 535AverageS$ 1,110FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
United AirlinesCheapestS$ 721AverageS$ 1,014FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestS$ 830AverageS$ 1,067FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Singapore AirlinesCheapestS$ 894AverageS$ 1,328FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
STARLUX AirlinesCheapestS$ 1,020AverageS$ 1,139FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapestS$ 1,064AverageS$ 1,251FlexibilityNo 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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