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Cheap flights from Singapore to Seattle from S$ 534

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 28-1. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — SEA
20 Feb — 27 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Singapore Changi to Seattle/Tacoma Intl are usually found in October or September, booked 25 days in advance, depart on a Wednesday or Tuesday and return on a Monday

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 21 January 2026.

Wed 4-316:30
SIN
-
SEA
2 stops31h 35m
Hainan Airlines
Thu 12-311:05
SEA
-
SIN
2 stops25h 05m
Hainan Airlines
Deal found 19-1S$ 883
Sun 15-314:25
SIN
-
SEA
1 stop19h 45m
China Airlines
Tue 24-301:10
SEA
-
SIN
1 stop20h 55m
China Airlines
Deal found 20-1S$ 928
Mon 16-214:25
SIN
-
SEA
1 stop19h 45m
China Airlines
Sun 22-200:10
SEA
-
SIN
1 stop20h 55m
China Airlines
Deal found 18-1S$ 931
Mon 23-314:25
SIN
-
SEA
1 stop19h 45m
China Airlines
Mon 6-401:15
SEA
-
SIN
1 stop20h 20m
China Airlines
Deal found 19-1S$ 946
Mon 16-202:00
SIN
-
SEA
1 stop32h 10m
China Airlines
Mon 23-200:10
SEA
-
SIN
1 stop20h 55m
China Airlines
Deal found 20-1S$ 949
Wed 4-312:15
SIN
-
SEA
2 stops35h 50m
Multiple Airlines
Thu 12-309:45
SEA
-
SIN
Nonstop17h 00m
Multiple Airlines
Deal found 19-1S$ 953
Wed 18-316:30
SIN
-
SEA
2 stops31h 35m
Multiple Airlines
Sun 22-309:45
SEA
-
SIN
Nonstop17h 00m
Multiple Airlines
Deal found 18-1S$ 964
Thu 14-513:45
SIN
-
SEA
1 stop20h 30m
China Airlines
Thu 11-601:10
SEA
-
SIN
1 stop20h 25m
China Airlines
Deal found 19-1S$ 978
Wed 10-602:00
SIN
-
SEA
1 stop32h 15m
China Airlines
Mon 22-601:15
SEA
-
SIN
1 stop20h 20m
China Airlines
Deal found 19-1S$ 980
Mon 16-210:10
SIN
-
SEA
1 stop26h 51m
United Airlines
Sun 1-317:20
SEA
-
SIN
1 stop34h 55m
United Airlines
Deal found 19-1S$ 998
Wed 18-210:10
SIN
-
SEA
1 stop26h 51m
United Airlines
Wed 25-205:05
SEA
-
SIN
1 stop34h 55m
United Airlines
Deal found 19-1S$ 1,000
Wed 10-602:00
SIN
-
SEA
1 stop32h 15m
China Airlines
Sat 20-601:15
SEA
-
SIN
1 stop32h 20m
China Airlines
Deal found 19-1S$ 1,008

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 21 January 2026.

Round-trip from

S$ 883

One-way from

S$ 534

Popular in

January

Cheapest in

October

Average price

S$ 1,217

Good round-trip deal

S$ 1,676 or less
Hainan Airlines
  • Hainan Airlines
  • 4-3-12-3
  • 4 total stops
  • 56h 40m total
  • Singapore to Seattle
Search Deals
Hainan Airlines
  • Hainan Airlines
  • 28-1
  • 2 total stops
  • 31h 35m total
  • Singapore to Seattle
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (S$ 49 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (S$ 13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Singapore Changi to Seattle/Tacoma Intl.
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 21 January 2026.
Use the filters below to find and compare flights from Singapore to Seattle that are best for you.

Fly from

Singapore

Fly to

Seattle

Route

Depart

Return

Price

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 15-3

14:25-19:10

1 stop19h 45m

Seattle/Tacoma Intl

Tue 24-3

01:10-13:05

1 stop20h 55m

S$ 928

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 16-2

02:00-18:10

1 stop32h 10m

Seattle/Tacoma Intl

Mon 23-2

00:10-13:05

1 stop20h 55m

S$ 949

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 10-6

02:00-19:15

1 stop32h 15m

Seattle/Tacoma Intl

Sun 21-6

01:15-00:35

1 stop32h 20m

S$ 980

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 14-6

13:45-19:15

1 stop20h 30m

Seattle/Tacoma Intl

Sun 21-6

01:10-12:35

1 stop20h 25m

S$ 980

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 16-2

10:10-21:01

1 stop26h 51m

Seattle/Tacoma Intl

Sun 1-3

17:20-20:15

1 stop34h 55m

S$ 998

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 18-2

10:10-21:01

1 stop26h 51m

Seattle/Tacoma Intl

Wed 25-2

05:05-08:00

1 stop34h 55m

S$ 1,000

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 13-6

02:00-19:15

1 stop32h 15m

Seattle/Tacoma Intl

Sat 20-6

01:15-12:35

1 stop20h 20m

S$ 1,008

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 14-6

02:00-19:15

1 stop32h 15m

Seattle/Tacoma Intl

Sat 20-6

01:15-12:35

1 stop20h 20m

S$ 1,008

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 17-2

14:25-18:10

1 stop19h 45m

Seattle/Tacoma Intl

Tue 24-2

08:45-17:45

Nonstop17h 00m

S$ 1,010

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 25-3

02:00-19:10

1 stop32h 10m

Seattle/Tacoma Intl

Sun 29-3

01:15-00:35

1 stop32h 20m

S$ 1,010

Flights are sorted by cheapest return flights first.

Deals found on 17-1

Showing 1-10 of 21 results
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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
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?

Use this chart to determine the optimal time to book a return flight from Singapore to Seattle. Price data was last updated on 16 January 2026.

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 25 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, October is the cheapest month in which you can book a flight from Singapore to Seattle (average of S$ 760). Flying from Singapore to Seattle in January is currently the most expensive (average of S$ 1,144). 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 21 January 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.

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 21 January 2026.
Get a feel of what it's like to fly with STARLUX Airlines, EVA Air, andChina 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
8.9
Very Good
Check prices

Overall

8.9

Food

8.6

Crew

9.1

Entertainment

8.8

Comfort

8.8

Boarding

8.9

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
STARLUX Airlines
8.9
Very Good
STARLUX Airlines
8.9
Very Good
Check prices

Overall

8.9

Food

8.6

Crew

9.1

Entertainment

8.8

Comfort

8.8

Boarding

8.9

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
EVA Air
8.4
Very Good
1,327 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Overall

8.9

Food

8.6

Crew

9.1

Entertainment

8.8

Comfort

8.8

Boarding

8.9

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
China Airlines
8.3
Very Good
799 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Overall

8.9

Food

8.6

Crew

9.1

Entertainment

8.8

Comfort

8.8

Boarding

8.9

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
Singapore Airlines
8.1
Very Good
1,433 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Overall

8.9

Food

8.6

Crew

9.1

Entertainment

8.8

Comfort

8.8

Boarding

8.9

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
United Airlines
7.4
Good
9,183 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Overall

8.9

Food

8.6

Crew

9.1

Entertainment

8.8

Comfort

8.8

Boarding

8.9

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.

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 94 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 19h 45m. Fly via China Airlines or United Airlines 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$ 536. Additional round-trip tickets that might be worth considering are offered by United Airlines and STARLUX Airlines, with the lowest prices starting at S$ 831 and S$ 953, respectively. You may be able to fly from Singapore to Seattle for 51% 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 United Airlines, which is currently one of the cheapest options available, starting at S$ 560. Singapore Airlines flights start at S$ 587 while deals on STARLUX Airlines start at S$ 607 one-way.

  • What are the cheapest flights from Singapore to Seattle?

    On average you can expect to pay S$ 1,940 for a flight from Singapore to Seattle. The cheapest flight overall is S$ 1,599 while the most popular route, (Singapore Changi - Seattle/Tacoma Intl) is currently priced at S$ 883.

  • 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, October is the cheapest month in which you can book a flight from Singapore to Seattle (average of S$ 760). Flying from Singapore to Seattle in January is currently the most expensive (average of S$ 1,144). 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 21 January 2026.
Singapore Airlines flights from Singapore Changi to Seattle/Tacoma Intl
United Airlines flights from Singapore Changi to Seattle/Tacoma Intl

Top 5 airlines flying from Singapore to Seattle

Discover the top 5 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 21 January 2026.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapestS$ 536AverageS$ 1,030FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
United AirlinesCheapestS$ 831AverageS$ 1,069FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
STARLUX AirlinesCheapestS$ 953AverageS$ 1,104FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapestS$ 956AverageS$ 1,111FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Singapore AirlinesCheapestS$ 1,248AverageS$ 1,561FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines 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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