Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Singapore to Seattle from S$ 525

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
14 Nov — 21 Nov1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Singapore Changi to Seattle/Tacoma Intl are usually found in September or February, booked 5 days in advance, depart on a Wednesday or Monday and return on a Monday

Cheap 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 15 October 2025.

Round-trip from

S$ 816

One-way from

S$ 525

Popular in

June

Cheapest in

September

Average price

S$ 1,136

Good round-trip deal

S$ 1,269 or less
Philippine Airlines
  • Philippine Airlines
  • 31-10-16-11
  • 2 total stops
  • 50h 10m total
  • Singapore to Seattle
Search Deals
Philippine Airlines
  • Philippine Airlines
  • 19-10
  • 1 total stop
  • 19h 40m total
  • Singapore to Seattle
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (S$ 46 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (S$ 16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Singapore Changi to Seattle/Tacoma Intl.
Search Deals

Find 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 15 October 2025.

Fri 31-1014:10SIN - SEA
1 stop20h 30mPhilippine Airlines
Sun 16-1121:30SEA - SIN
1 stop29h 40mPhilippine Airlines
Deal found 14-10S$ 816
Thu 6-1100:40SIN - SEA
1 stop34h 00mPhilippine Airlines
Sun 23-1121:30SEA - SIN
1 stop29h 40mPhilippine Airlines
Deal found 13-10S$ 826
Tue 18-1100:40SIN - SEA
1 stop34h 00mPhilippine Airlines
Wed 26-1121:30SEA - SIN
1 stop23h 30mPhilippine Airlines
Deal found 13-10S$ 833
Wed 12-1114:10SIN - SEA
1 stop20h 30mPhilippine Airlines
Wed 26-1121:30SEA - SIN
1 stop34h 10mPhilippine Airlines
Deal found 13-10S$ 838
Sat 15-1100:40SIN - SEA
1 stop34h 00mPhilippine Airlines
Fri 28-1121:30SEA - SIN
1 stop29h 40mPhilippine Airlines
Deal found 14-10S$ 844
Mon 27-1023:10SIN - SEA
1 stop30h 45mAsiana Airlines
Sat 15-1100:10SEA - SIN
1 stop29h 45mAsiana Airlines
Deal found 14-10S$ 850
Fri 21-1114:10SIN - SEA
1 stop20h 30mPhilippine Airlines
Sun 30-1121:30SEA - SIN
1 stop29h 40mPhilippine Airlines
Deal found 13-10S$ 922
Mon 15-1214:25SIN - SEA
1 stop19h 45mChina Airlines
Mon 29-1200:10SEA - SIN
1 stop32h 30mChina Airlines
Deal found 13-10S$ 955

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 15 October 2025.
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 16-11

14:10-18:40

1 stop20h 30m

Seattle/Tacoma Intl

Fri 28-11

21:30-23:40

1 stop34h 10m

S$ 844

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 20-3

14:10-19:40

1 stop20h 30m

Seattle/Tacoma Intl

Thu 26-3

22:30-09:35

1 stop20h 05m

S$ 915

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 24-3

20:10-19:40

1 stop38h 30m

Seattle/Tacoma Intl

Fri 27-3

22:30-18:50

1 stop29h 20m

S$ 915

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 25-3

10:35-19:40

1 stop24h 05m

Seattle/Tacoma Intl

Wed 1-4

23:55-09:40

1 stop18h 45m

S$ 915

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 23-3

00:40-19:40

1 stop34h 00m

Seattle/Tacoma Intl

Wed 1-4

23:55-18:50

1 stop27h 55m

S$ 915

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 12-3

23:10-14:55

1 stop30h 45m

Seattle/Tacoma Intl

Sun 15-3

00:10-21:55

1 stop30h 45m

S$ 963

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 12-3

10:10-20:46

1 stop25h 36m

Seattle/Tacoma Intl

Mon 16-3

07:15-20:15

1 stop22h 00m

S$ 1,000

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 27-10

22:20-12:18

1 stop28h 58m

Seattle/Tacoma Intl

Sun 16-11

09:25-08:00

1 stop30h 35m

S$ 1,000

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 31-10

10:10-16:15

1 stop21h 05m

Seattle/Tacoma Intl

Thu 6-11

14:40-20:15

1 stop37h 35m

S$ 1,002

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 30-10

10:10-08:23

1 stop37h 13m

Seattle/Tacoma Intl

Thu 6-11

05:30-20:15

1 stop22h 45m

S$ 1,002

Flights are sorted by cheapest return flights first.

Deals found on 13-10

Showing 1-10 of 20 results
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?

Use this chart to determine the optimal time to book a return flight from Singapore to Seattle. Price data was last updated on 10 October 2025.

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 5 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$ 802). Flying from Singapore to Seattle in January is currently the most expensive (average of S$ 1,146). 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 15 October 2025.

One of the essential ways to save on airfare from Singapore to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 27% on airfare.

What is the cheapest day to fly from Singapore to Seattle?

Use this chart to determine the cheapest time to fly return from Singapore to Seattle. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Singapore to Seattle flight should consider departing on Friday at midday when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 15 October 2025.
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

Crew

9.2

Overall

8.9

Food

8.7

Comfort

8.9

Entertainment

8.8

Boarding

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sept 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
STARLUX Airlines
8.9
Very Good
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Overall

8.9

Food

8.7

Comfort

8.9

Entertainment

8.8

Boarding

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sept 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
EVA Air
8.4
Very Good
1,250 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Overall

8.9

Food

8.7

Comfort

8.9

Entertainment

8.8

Boarding

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sept 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
China Airlines
8.3
Very Good
768 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Overall

8.9

Food

8.7

Comfort

8.9

Entertainment

8.8

Boarding

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sept 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
Singapore Airlines
8.1
Very Good
1,380 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Overall

8.9

Food

8.7

Comfort

8.9

Entertainment

8.8

Boarding

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sept 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
United Airlines
7.4
Good
8,977 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.2

Overall

8.9

Food

8.7

Comfort

8.9

Entertainment

8.8

Boarding

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sept 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!

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 158 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 20h 30m. Fly via Philippine Airlines to get the fastest option. There are 12970 km between Singapore and Seattle.

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

    Flying on United Airlines is currently your cheapest option to Seattle, with prices starting at S$ 841. Additional round-trip tickets that might be worth considering are offered by STARLUX Airlines and China Airlines, with the lowest prices starting at S$ 965 and S$ 994, respectively. You may be able to fly from Singapore to Seattle for 27% less than the average price by searching for these airlines.

  • What are the cheapest flights from Singapore to Seattle?

    On average you can expect to pay S$ 1,360 for a flight from Singapore to Seattle. The cheapest flight overall is S$ 1,142 while the most popular route, (Singapore Changi - Seattle/Tacoma Intl) is currently priced at S$ 832.

  • 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$ 802). Flying from Singapore to Seattle in January is currently the most expensive (average of S$ 1,146). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 15 October 2025.
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 15 October 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestS$ 841AverageS$ 1,086FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
STARLUX AirlinesCheapestS$ 965AverageS$ 1,116FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
China AirlinesCheapestS$ 994AverageS$ 1,070FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
EVA AirCheapestS$ 1,018AverageS$ 1,164FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Korean AirCheapestS$ 1,070AverageS$ 1,212FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Singapore AirlinesCheapestS$ 1,175AverageS$ 1,525FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.