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Cheap flights from Singapore to Seattle from S$ 648

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 13-5. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — SEA
26 May — 2 Jun1
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 26 April 2026.

Wed 13-501:25
SIN
-
SEA
1 stop26h 46m
Delta
Thu 9-713:05
SEA
-
SIN
1 stop19h 50m
Delta
Deal found 22-4S$ 1,017
Thu 29-1001:35
SIN
-
SEA
1 stop23h 25m
Korean Air
Mon 2-1111:00
SEA
-
SIN
1 stop41h 25m
Korean Air
Deal found 23-4S$ 1,018
Wed 7-1022:50
SIN
-
SEA
1 stop31h 25m
Asiana Airlines
Sun 11-1000:10
SEA
-
SIN
1 stop30h 20m
Asiana Airlines
Deal found 24-4S$ 1,045
Thu 10-922:50
SIN
-
SEA
1 stop31h 25m
Asiana Airlines
Mon 21-900:10
SEA
-
SIN
1 stop30h 20m
Asiana Airlines
Deal found 23-4S$ 1,050
Thu 10-907:30
SIN
-
SEA
1 stop18h 10m
Multiple Airlines
Tue 22-913:30
SEA
-
SIN
2 stops32h 45m
Multiple Airlines
Deal found 23-4S$ 1,060
Mon 15-622:00
SIN
-
SEA
1 stop31h 25m
ANA
Wed 15-716:30
SEA
-
SIN
1 stop23h 10m
ANA
Deal found 26-4S$ 1,135
Tue 12-522:00
SIN
-
SEA
1 stop30h 11m
Delta
Tue 7-713:05
SEA
-
SIN
1 stop39h 10m
Delta
Deal found 22-4S$ 1,151
Fri 16-1022:00
SIN
-
SEA
1 stop27h 40m
Delta
Sat 31-1007:20
SEA
-
SIN
2 stops30h 40m
Delta
Deal found 24-4S$ 1,153

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 26 April 2026.

Round-trip from

S$ 1,017

One-way from

S$ 648

Popular in

January

Cheapest in

October

Average price

S$ 1,167
Delta
  • Delta
  • 13-5-9-7
  • 2 total stops
  • 46h 36m total
  • Singapore to Seattle
Search Deals
Delta
  • Delta
  • 13-5
  • 1 total stop
  • 20h 41m total
  • Singapore to Seattle
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (S$ 56 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (S$ 14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 26 April 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

Sun 19-7

19:40-12:25

1 stop31h 45m

Seattle/Tacoma Intl

Tue 21-7

16:25-15:45

1 stop32h 20m

S$ 1,287

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 26-7

03:15-12:25

1 stop24h 10m

Seattle/Tacoma Intl

Tue 25-8

16:25-15:45

1 stop32h 20m

S$ 1,290
Fastest return journey

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 16-7

14:00-16:35

1 stop17h 35m

Seattle/Tacoma Intl

Thu 13-8

01:15-12:50

1 stop20h 35m

S$ 1,295

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 27-9

03:15-19:07

2 stops30h 52m

Seattle/Tacoma Intl

Thu 1-10

16:25-15:45

1 stop32h 20m

S$ 1,305

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 22-5

01:30-14:45

1 stop28h 15m

Seattle/Tacoma Intl

Sat 6-6

17:05-09:20

1 stop25h 15m

S$ 1,352

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 23-5

21:15-14:45

2 stops56h 30m

Seattle/Tacoma Intl

Sat 30-5

17:05-09:20

1 stop25h 15m

S$ 1,366

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 22-5

01:30-14:45

1 stop28h 15m

Seattle/Tacoma Intl

Sat 30-5

17:05-11:25

2 stops27h 20m

S$ 1,378

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 12-5

22:00-13:11

1 stop30h 11m

Seattle/Tacoma Intl

Sat 11-7

05:25-23:55

2 stops27h 30m

S$ 1,401

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 6-5

09:00-21:58

2 stops27h 58m

Seattle/Tacoma Intl

Mon 3-8

10:29-00:45

2 stops47h 16m

S$ 1,424
Cheapest one-way

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 18-5

22:00-13:11

1 stop30h 11m

S$ 648

Flights are sorted by cheapest return flights first.

Deals found on 23-4

Showing 1-10 of 18 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 22 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$ 932). Flying from Singapore to Seattle in January is currently the most expensive (average of S$ 1,208). 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 26 April 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?

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 26 April 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

Entertainment

8.8

Overall

8.9

Comfort

8.9

Boarding

8.9

Food

8.6

Crew

9.2

Reviews

1 / 11
8.0
Excellent

Anonymous,Apr 2026

PHX - TPE

After about 10 hours the seat turns into a 2 x4! Maybe pitch the front up 1-2 degrees so the posterior occupies the whole surface instead of sliding out forward--you would think it would be more comfortable.
STARLUX Airlines
8.9
Very Good
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Comfort

8.9

Boarding

8.9

Food

8.6

Crew

9.2

Reviews

1 / 11
8.0
Excellent

Anonymous,Apr 2026

PHX - TPE

After about 10 hours the seat turns into a 2 x4! Maybe pitch the front up 1-2 degrees so the posterior occupies the whole surface instead of sliding out forward--you would think it would be more comfortable.
EVA Air
8.5
Very Good
1,432 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Comfort

8.9

Boarding

8.9

Food

8.6

Crew

9.2

Reviews

1 / 11
8.0
Excellent

Anonymous,Apr 2026

PHX - TPE

After about 10 hours the seat turns into a 2 x4! Maybe pitch the front up 1-2 degrees so the posterior occupies the whole surface instead of sliding out forward--you would think it would be more comfortable.
China Airlines
8.3
Very Good
819 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Comfort

8.9

Boarding

8.9

Food

8.6

Crew

9.2

Reviews

1 / 11
8.0
Excellent

Anonymous,Apr 2026

PHX - TPE

After about 10 hours the seat turns into a 2 x4! Maybe pitch the front up 1-2 degrees so the posterior occupies the whole surface instead of sliding out forward--you would think it would be more comfortable.
Singapore Airlines
8.2
Very Good
1,502 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Comfort

8.9

Boarding

8.9

Food

8.6

Crew

9.2

Reviews

1 / 11
8.0
Excellent

Anonymous,Apr 2026

PHX - TPE

After about 10 hours the seat turns into a 2 x4! Maybe pitch the front up 1-2 degrees so the posterior occupies the whole surface instead of sliding out forward--you would think it would be more comfortable.
United Airlines
7.4
Good
9,659 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Overall

8.9

Comfort

8.9

Boarding

8.9

Food

8.6

Crew

9.2

Reviews

1 / 11
8.0
Excellent

Anonymous,Apr 2026

PHX - TPE

After about 10 hours the seat turns into a 2 x4! Maybe pitch the front up 1-2 degrees so the posterior occupies the whole surface instead of sliding out forward--you would think it would be more comfortable.

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 73 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 17h 35m. Fly via Qatar Airways or STARLUX 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$ 533. Additional round-trip tickets that might be worth considering are offered by United Airlines and Singapore Airlines, with the lowest prices starting at S$ 826 and S$ 925, 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 Singapore Airlines, which is currently one of the cheapest options available, starting at S$ 510. STARLUX Airlines flights start at S$ 566 while deals on ANA start at S$ 666 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, October is the cheapest month in which you can book a flight from Singapore to Seattle (average of S$ 932). Flying from Singapore to Seattle in January is currently the most expensive (average of S$ 1,208). 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

Browse thousands of different options on Cheapflights for your next trip

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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 26 April 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 26 April 2026.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapestS$ 533AverageS$ 1,104FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
United AirlinesCheapestS$ 826AverageS$ 1,044FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Singapore AirlinesCheapestS$ 925AverageS$ 1,414FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
STARLUX AirlinesCheapestS$ 984AverageS$ 1,081FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapestS$ 1,056AverageS$ 1,108FlexibilityNo 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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