HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$488+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — SEA
May 4 — May 111
Sun 5/4
Sun 5/11
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 February or March, booked 85 days in advance, depart on a Monday or Tuesday 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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$534
(FlightHub)

One-way from

$488
(Mytrip)

Popular in

August

Cheapest in

February

Average price

$926

Good one-way deal

$785 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. 7% potential increase in price ($79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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 April 29, 2025.

This Flightnetwork deal was found by Cheapflights users on 4/27. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2210:50 pmSIN - SEA
1 stop28h 40mAsiana Airlines
Sun 6/12:15 pmSEA - SIN
1 stop40h 15mAsiana Airlines
Deal found 4/27$541
This Mytrip deal was found by Cheapflights users on 4/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/212:15 amSIN - SEA
1 stop23h 25mMultiple Airlines
Sun 6/11:20 pmSEA - SIN
1 stop20h 25mMultiple Airlines
Deal found 4/27$734
This Jettzy deal was found by Cheapflights users on 4/28. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/172:00 amSIN - SEA
1 stop32h 30mChina Airlines
Thu 5/221:10 amSEA - SIN
1 stop20h 25mChina Airlines
Deal found 4/28$740
This Gotogate deal was found by Cheapflights users on 4/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/212:00 pmSIN - SEA
1 stop17h 10mSTARLUX Airlines
Sat 5/241:15 amSEA - SIN
1 stop20h 25mSTARLUX Airlines
Deal found 4/27$778
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/129:10 amSIN - SEA
1 stop18h 48mAir Canada
Thu 6/195:30 amSEA - SIN
1 stop34h 35mAir Canada
Deal found 4/28$789
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 6/58:45 amSIN - SEA
1 stop31h 14mUnited Airlines
Wed 8/67:00 amSEA - SIN
1 stop20h 25mUnited Airlines
Deal found 4/28$819
This Gotogate deal was found by Cheapflights users on 4/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/71:10 amSIN - SEA
1 stop24h 30mKorean Air
Tue 5/1312:50 pmSEA - SIN
1 stop40h 05mKorean Air
Deal found 4/28$823
This Jettzy deal was found by Cheapflights users on 4/28. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/123:10 pmSIN - SEA
1 stop19h 40mEVA Air
Fri 8/82:10 amSEA - SIN
1 stop18h 50mEVA Air
Deal found 4/28$839
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2111:00 amSIN - SEA
1 stop18h 05mDelta
Sun 11/3011:15 amSEA - SIN
1 stop20h 55mDelta
Deal found 4/28$848
This Singapore Airlines deal was found by Cheapflights users on 4/28. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/219:00 amSIN - SEA
Nonstop14h 10mSingapore Airlines
Sun 11/308:45 amSEA - SIN
Nonstop17h 00mSingapore Airlines
Deal found 4/28$921
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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.
Thu 5/1511:05 amSIN - SEA
1 stop18h 20mANA
Thu 7/247:00 amSEA - SIN
2 stops26h 45mANA
Deal found 4/28$941
This Japan Airlines deal was found by Cheapflights users on 4/28. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/258:05 amSIN - SEA
2 stops21h 53mJapan Airlines
Wed 7/28:10 amSEA - SIN
2 stops25h 10mJapan Airlines
Deal found 4/28$1,030

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 April 29, 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

Thu 5/22

10:50 pm-12:30 pm

1 stop28h 40m

Seattle/Tacoma Intl

Sun 6/1

2:15 pm-9:30 pm

1 stop40h 15m

$541

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 5/21

2:15 am-10:40 am

1 stop23h 25m

Seattle/Tacoma Intl

Sun 6/1

1:20 pm-12:45 am

1 stop20h 25m

$734

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 5/17

2:00 am-7:30 pm

1 stop32h 30m

Seattle/Tacoma Intl

Thu 5/22

1:10 am-12:35 pm

1 stop20h 25m

$740

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 5/21

2:00 pm-4:10 pm

1 stop17h 10m

Seattle/Tacoma Intl

Sat 5/24

1:15 am-12:40 pm

1 stop20h 25m

$778

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 6/5

8:45 am-12:59 am

1 stop31h 14m

Seattle/Tacoma Intl

Wed 8/6

7:00 am-6:25 pm

1 stop20h 25m

$819

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 5/14

1:10 am-10:40 am

1 stop24h 30m

Seattle/Tacoma Intl

Thu 7/24

1:20 pm-5:00 am

1 stop24h 40m

$825

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 6/10

9:10 am-6:33 pm

1 stop24h 23m

Seattle/Tacoma Intl

Tue 6/24

5:30 am-7:05 am

1 stop34h 35m

$837

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 7/12

3:10 pm-7:50 pm

1 stop19h 40m

Seattle/Tacoma Intl

Fri 8/8

2:10 am-12:00 pm

1 stop18h 50m

$839

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 5/15

11:05 am-2:25 pm

1 stop18h 20m

Seattle/Tacoma Intl

Thu 7/24

7:00 am-12:45 am

2 stops26h 45m

$941

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 5/14

1:10 am-4:08 pm

2 stops29h 58m

Seattle/Tacoma Intl

Thu 7/24

1:20 pm-5:00 am

1 stop24h 40m

$960

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Singapore-Seattle flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 April 25, 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 85 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, January is the cheapest month in which you can book a flight from Singapore to Seattle (average of $238). Flying from Singapore to Seattle in July is currently the most expensive (average of $405). 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 April 29, 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 47% on airfare.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 April 29, 2025.
Get a feel of what it's like to fly with STARLUX Airlines, EVA Air and Korean Air 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
9.1
Wonderful
161 reviews

Entertainment

9.0

Comfort

9.0

Boarding

9.0

Food

8.9

Crew

9.3

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
STARLUX Airlines
9.1
Wonderful
161 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Entertainment

9.0

Comfort

9.0

Boarding

9.0

Food

8.9

Crew

9.3

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
EVA Air
8.4
Very good
1,184 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Entertainment

9.0

Comfort

9.0

Boarding

9.0

Food

8.9

Crew

9.3

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Korean Air
8.4
Very good
1,063 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Entertainment

9.0

Comfort

9.0

Boarding

9.0

Food

8.9

Crew

9.3

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Japan Airlines
8.3
Very good
1,459 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Entertainment

9.0

Comfort

9.0

Boarding

9.0

Food

8.9

Crew

9.3

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
China Airlines
8.3
Very good
729 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Entertainment

9.0

Comfort

9.0

Boarding

9.0

Food

8.9

Crew

9.3

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.

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.

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

    According to our current data, Asiana Airlines ($534), United Airlines ($736), and China Airlines ($740) offers the cheapest pricing from Singapore to Seattle. Asiana Airlines is priced at 44% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Singapore to Seattle one-way?

    One-way options have recently been found by users for as low as $503 on China Airlines. Other airlines that offer cheap prices include STARLUX Airlines from $509 and United Airlines from $521 one-way.

  • What are the cheapest flights from Singapore to Seattle?

    On average you can expect to pay $898 for a flight from Singapore to Seattle. The cheapest flight overall is $488 while the most popular route, (Singapore Changi - Seattle/Tacoma Intl) is currently priced at $534.

  • 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, January is the cheapest month in which you can book a flight from Singapore to Seattle (average of $238). Flying from Singapore to Seattle in July is currently the most expensive (average of $405). 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 Singapore?

Book flights to Singapore if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Renton
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Kent
Aberdeen
Lynnwood
Shelton
Silverdale
Redmond
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 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 2,558,603 searches. Data last updated April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$763Average$1,371FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$781Average$1,033FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$799Average$874FlexibilityNo cancel feeOn-time69%
STARLUX AirlinesCheapest$801Average$931FlexibilityNo cancel feeOn-timeN/A
ANACheapest$859Average$985FlexibilityNo cancel feeOn-time80%
American AirlinesCheapest$990Average$1,190FlexibilityNo cancel feeOn-time71%

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.