HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$404+ Cheap flights from Singapore (SIN) to Seattle (SEA)

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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — SEA
nov. 26 — dic. 31
mié. 11/26
mié. 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Singapore to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 Thursday or Monday and return on a Tuesday

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 octubre 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$650
(CheapTickets)

One-way from

$404
(Mytrip)

Popular in

June

Cheapest in

September

Average price

$874

Good round-trip deal

$946 or less

Good one-way deal

$471 or less
Provider with most accurate pricing for Singapore Changi-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Singapore Changi-Seattle/Tacoma Intl flights.
Search Deals
From Singapore Changi to Seattle/Tacoma Intl
Search Deals
One-way flight from Singapore Changi to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT 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
Price to beat on a one-way flight from Singapore Changi to Seattle/Tacoma Intl.
Search Deals

Find flight deals from Singapore to Seattle

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 octubre 27, 2025.

This CheapTickets deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/188:10 pmSIN - SEA
1 stop38h 30mPhilippine Airlines
mar. 11/259:30 pmSEA - SIN
1 stop34h 10mPhilippine Airlines
Deal found 10/27$650
This Philippine Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/192:10 pmSIN - SEA
1 stop20h 30mPhilippine Airlines
vie. 11/289:30 pmSEA - SIN
1 stop29h 40mPhilippine Airlines
Deal found 10/27$704
This CheapTickets deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/172:25 pmSIN - SEA
1 stop19h 45mChina Airlines
dom. 11/2312:10 amSEA - SIN
1 stop20h 55mChina Airlines
Deal found 10/25$767
This CheapTickets deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/172:00 amSIN - SEA
1 stop32h 10mChina Airlines
lun. 11/2412:10 amSEA - SIN
1 stop20h 55mChina Airlines
Deal found 10/27$768
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/1510:20 pmSIN - SEA
1 stop26h 03mUnited Airlines
lun. 11/247:28 pmSEA - SIN
1 stop20h 32mUnited Airlines
Deal found 10/25$770
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/1510:20 pmSIN - SEA
1 stop26h 03mUnited Airlines
dom. 11/232:40 pmSEA - SIN
1 stop25h 20mUnited Airlines
Deal found 10/27$771
This Cheapflightsfares deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/1610:35 amSIN - SEA
1 stop24h 05mPhilippine Airlines
dom. 11/239:30 pmSEA - SIN
1 stop20h 05mPhilippine Airlines
Deal found 10/26$772
This oojo deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/32:00 amSIN - SEA
1 stop32h 10mChina Airlines
jue. 1/812:10 amSEA - SIN
1 stop32h 30mChina Airlines
Deal found 10/26$775
This Trip.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/2812:40 amSIN - SEA
1 stop34h 00mMultiple Airlines
jue. 10/3011:05 amSEA - SIN
2 stops25h 05mMultiple Airlines
Deal found 10/25$781
This Air Canada deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/98:50 amSIN - SEA
1 stop16h 41mAir Canada
dom. 11/3010:05 amSEA - SIN
1 stop28h 55mAir Canada
Deal found 10/26$786
This Expedia deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/28:50 amSIN - SEA
1 stop16h 41mAir Canada
sáb. 11/88:00 pmSEA - SIN
2 stops23h 15mAir Canada
Deal found 10/26$787
This Air Canada deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/318:50 amSIN - SEA
1 stop28h 16mAir Canada
vie. 11/73:40 pmSEA - SIN
2 stops27h 35mAir Canada
Deal found 10/26$788

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated octubre 27, 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

mié. 11/19

2:10 pm-6:40 pm

1 stop20h 30m

Seattle/Tacoma Intl

mié. 11/26

9:30 pm-1:00 pm

1 stop23h 30m

$704

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

vie. 11/21

2:10 pm-6:40 pm

1 stop20h 30m

Seattle/Tacoma Intl

vie. 11/28

9:30 pm-7:10 pm

1 stop29h 40m

$704

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

lun. 11/17

10:20 pm-12:59 am

1 stop18h 39m

Seattle/Tacoma Intl

jue. 11/27

7:00 am-8:15 pm

1 stop21h 15m

$770

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

dom. 11/16

10:20 pm-12:59 am

1 stop18h 39m

Seattle/Tacoma Intl

sáb. 11/22

5:20 pm-8:15 pm

1 stop34h 55m

$770

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

mar. 11/18

10:10 am-1:38 pm

1 stop19h 28m

Seattle/Tacoma Intl

dom. 11/23

2:40 pm-8:00 am

1 stop25h 20m

$771

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

jue. 11/20

10:10 am-4:15 pm

1 stop22h 05m

Seattle/Tacoma Intl

mar. 11/25

5:20 pm-8:00 am

1 stop22h 40m

$771

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

mar. 11/18

10:10 am-12:59 am

1 stop30h 49m

Seattle/Tacoma Intl

vie. 11/28

7:00 am-8:15 pm

1 stop21h 15m

$771

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

dom. 11/16

10:20 pm-12:59 am

1 stop18h 39m

Seattle/Tacoma Intl

mar. 11/25

1:20 pm-8:00 am

1 stop26h 40m

$771

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

lun. 11/17

10:10 am-11:44 pm

1 stop29h 34m

Seattle/Tacoma Intl

mar. 11/25

5:30 am-8:15 pm

1 stop22h 45m

$771

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

lun. 11/17

10:10 am-12:59 am

1 stop30h 49m

Seattle/Tacoma Intl

dom. 11/23

7:28 pm-8:00 am

1 stop20h 32m

$771

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 22 results
1
2
3

Compare providers for flights from Singapore to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Singapore to Seattle in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Singapore-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Singapore-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Singapore-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Singapore-Seattle flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Singapore-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from Singapore to Seattle. Price data was last updated on October 24, 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 $617). Flying from Singapore to Seattle in January is currently the most expensive (average of $882). 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 octubre 27, 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 noon could potentially save you up to 30% on airfare.

How much does it cost to fly round-trip from Singapore to Seattle?

The best insider tips for Singapore to Seattle flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Singapore to Seattle trip
Airports
SIN

For early check-in, use Jewel's desks up to 24 hours before your flight, avoiding queues at SIN.

Read more about SINby Yulia Denisyuk
SEA

Use the Link light rail from SEA to downtown Seattle for a cost-effective and convenient 40-minute journey.

Read more about SEAby Brandon Schultz
Our travel experts
Yulia Denisyuk

Yulia Denisyuk

Expert on SIN

Yulia Denisyuk

Yulia Denisyuk

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

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 octubre 27, 2025.
See what other customers who have flown with STARLUX Airlines, EVA Air, and Singapore Airlines from Singapore to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.9
Very good
219 reviews

Crew

9.2

Boarding

8.9

Overall

8.9

Entertainment

8.8

Food

8.7

Comfort

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 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
219 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Crew

9.2

Boarding

8.9

Overall

8.9

Entertainment

8.8

Food

8.7

Comfort

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 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
1,261 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Crew

9.2

Boarding

8.9

Overall

8.9

Entertainment

8.8

Food

8.7

Comfort

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 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
1,388 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Crew

9.2

Boarding

8.9

Overall

8.9

Entertainment

8.8

Food

8.7

Comfort

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 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
8,997 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Crew

9.2

Boarding

8.9

Overall

8.9

Entertainment

8.8

Food

8.7

Comfort

8.9

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 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?

    The Singapore Changi to Seattle/Tacoma Intl flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Singapore to Seattle?

    For as low as $770, Philippine Airlines can have you in Seattle from Singapore in 18h 39m. The distance between Singapore and Seattle is about 8059 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, United Airlines ($761), Singapore Airlines ($763), and EVA Air ($779) offers the cheapest pricing from Singapore to Seattle. United Airlines is priced at 14% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest flights from Singapore to Seattle?

    On average you can expect to pay $2,585 for a flight from Singapore to Seattle. The cheapest flight overall is $463 while the most popular route, (Singapore Changi - Seattle/Tacoma Intl) is currently priced at $656.

  • 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 vacation 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 $617). Flying from Singapore to Seattle in January is currently the most expensive (average of $882). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Federal Way
Cle Elum
Marysville
Puyallup
Chehalis
Fife
Issaquah

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.

Alternative routes for Singapore to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Singapore to Portland flights

Top 4 airlines flying from Singapore to Seattle

Discover the top 4 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 2,558,603 searches. Data last updated octubre 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$761Average$808FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$763Average$1,181FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$779Average$864FlexibilityNo cancel feeOn-time74%
STARLUX AirlinesCheapest$785Average$836FlexibilityNo cancel feeOn-timeN/A

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.