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$444+ 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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — SEA
Apr 13 — Apr 201
Sun 4/13
Sun 4/20
1 adult, Economy
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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

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3. Compare prices and book

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Cheapflights Tip: The best prices from Singapore Changi to Seattle/Tacoma Intl are usually found in February or March, booked 47 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 8, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$674
(Mytrip)

One-way from

$444
(United Airlines)

Popular in

August

Cheapest in

February

Average price

$937

Good one-way deal

$943 or less
Provider with most accurate pricing for Singapore Changi-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Singapore Changi-Seattle/Tacoma Intl flights.
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From Singapore Changi to Seattle/Tacoma Intl
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One-way flight from Singapore Changi to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($78 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a one-way flight from Singapore Changi to Seattle/Tacoma Intl.
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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 8, 2025.

This Mytrip deal was found by Cheapflights users on 4/7. 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.
Mon 5/192:15 amSIN - SEA
2 stops26h 58mMultiple Airlines
Tue 5/2710:00 amSEA - SIN
2 stops23h 45mMultiple Airlines
Deal found 4/7$674
This United Airlines deal was found by Cheapflights users on 4/8. 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.
Tue 6/108:40 pmSIN - SEA
1 stop27h 09mUnited Airlines
Mon 8/117:34 pmSEA - SIN
1 stop31h 51mUnited Airlines
Deal found 4/8$710
This CheapTickets deal was found by Cheapflights users on 4/7. 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.
Mon 6/162:00 amSIN - SEA
1 stop32h 30mChina Airlines
Mon 6/231:10 amSEA - SIN
1 stop20h 25mChina Airlines
Deal found 4/7$714
This FlightHub deal was found by Cheapflights users on 4/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1410:50 pmSIN - SEA
1 stop28h 40mAsiana Airlines
Tue 7/12:30 pmSEA - SIN
1 stop40h 00mAsiana Airlines
Deal found 4/8$765
This oojo deal was found by Cheapflights users on 4/8. 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.
Thu 5/222:00 pmSIN - SEA
1 stop17h 10mSTARLUX Airlines
Wed 8/131:15 amSEA - SIN
1 stop20h 25mSTARLUX Airlines
Deal found 4/8$769
This Gotogate deal was found by Cheapflights users on 4/8. 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.
Sat 5/179:10 amSIN - SEA
1 stop39h 08mAir Canada
Sun 5/2510:00 amSEA - SIN
1 stop30h 05mAir Canada
Deal found 4/8$788
This EVA Air deal was found by Cheapflights users on 4/8. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/143:45 pmSIN - SEA
1 stop18h 25mEVA Air
Sat 11/2212:10 amSEA - SIN
1 stop19h 55mEVA Air
Deal found 4/8$829
This oojo deal was found by Cheapflights users on 4/8. 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.
Wed 5/141:10 amSIN - SEA
1 stop24h 30mKorean Air
Thu 7/241:20 pmSEA - SIN
1 stop24h 40mKorean Air
Deal found 4/8$837
This Delta deal was found by Cheapflights users on 4/8. 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.
Sun 11/91:30 amSIN - SEA
1 stop27h 35mDelta
Sun 11/2311:15 amSEA - SIN
1 stop25h 45mDelta
Deal found 4/8$858
This Singapore Airlines deal was found by Cheapflights users on 4/8. 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.
Thu 11/139:00 amSIN - SEA
Nonstop14h 10mSingapore Airlines
Thu 11/208:45 amSEA - SIN
Nonstop17h 00mSingapore Airlines
Deal found 4/8$947
This Jetabroad deal was found by Cheapflights users on 4/7. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/141:55 amSIN - SEA
2 stops31h 37mJapan Airlines
Mon 6/308:10 amSEA - SIN
2 stops25h 10mJapan Airlines
Deal found 4/7$1,041

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 8, 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

Mon 5/19

2:15 am-2:13 pm

2 stops26h 58m

Seattle/Tacoma Intl

Tue 5/27

10:00 am-12:45 am

2 stops23h 45m

$674

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 6/10

8:40 pm-8:49 am

1 stop27h 09m

Seattle/Tacoma Intl

Mon 8/11

7:34 pm-6:25 pm

1 stop31h 51m

$710

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 6/16

2:00 am-7:30 pm

1 stop32h 30m

Seattle/Tacoma Intl

Mon 6/23

1:10 am-12:35 pm

1 stop20h 25m

$714

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 5/22

2:00 pm-4:10 pm

1 stop17h 10m

Seattle/Tacoma Intl

Wed 8/13

1:15 am-12:40 pm

1 stop20h 25m

$769

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 5/22

10:50 pm-12:30 pm

1 stop28h 40m

Seattle/Tacoma Intl

Thu 5/29

2:15 pm-9:30 pm

1 stop40h 15m

$778

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 5/17

9:10 am-9:18 am

1 stop39h 08m

Seattle/Tacoma Intl

Sun 5/25

10:00 am-7:05 am

1 stop30h 05m

$788

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

$837

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 5/8

3:10 pm-7:30 pm

1 stop19h 20m

Seattle/Tacoma Intl

Thu 5/22

1:50 am-12:00 pm

1 stop19h 10m

$848

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 5/14

1:10 am-1:35 pm

1 stop27h 25m

Seattle/Tacoma Intl

Thu 7/24

6:15 am-11:40 pm

2 stops26h 25m

$962

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 7/2

11:05 am-6:36 pm

2 stops22h 31m

Seattle/Tacoma Intl

Mon 8/11

4:30 pm-6:40 am

1 stop23h 10m

$1,068

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/7

Showing 1-10 of 23 results
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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*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Singapore-Seattle flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 4, 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 47 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 $411). 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 8, 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 8, 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
149 reviews

Crew

9.3

Food

8.9

Overall

9.1

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
STARLUX Airlines
9.1
Wonderful
149 reviews
STARLUX Airlines
9.1
Wonderful
149 reviews

Crew

9.3

Food

8.9

Overall

9.1

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
EVA Air
8.4
Very good
1,173 reviews
STARLUX Airlines
9.1
Wonderful
149 reviews

Crew

9.3

Food

8.9

Overall

9.1

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Korean Air
8.4
Very good
1,056 reviews
STARLUX Airlines
9.1
Wonderful
149 reviews

Crew

9.3

Food

8.9

Overall

9.1

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Japan Airlines
8.3
Very good
1,439 reviews
STARLUX Airlines
9.1
Wonderful
149 reviews

Crew

9.3

Food

8.9

Overall

9.1

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
ANA
8.3
Very good
834 reviews
STARLUX Airlines
9.1
Wonderful
149 reviews

Crew

9.3

Food

8.9

Overall

9.1

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

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, United Airlines ($711), China Airlines ($714), and Asiana Airlines ($769) offers the cheapest pricing from Singapore to Seattle. United Airlines is priced at 25% 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 $444 on United Airlines. Other airlines that offer cheap prices include China Airlines from $470 and STARLUX Airlines from $499 one-way.

  • What are the cheapest flights from Singapore to Seattle?

    On average you can expect to pay $1,665 for a flight from Singapore to Seattle. The cheapest flight overall is $813 while the most popular route, (Singapore Changi - Seattle/Tacoma Intl) is currently priced at $711.

  • 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 $411). 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
Lakewood
Renton
Lacey
Ocean Shores
Leavenworth
Federal Way
Olympia
Cle Elum
Centralia
Mukilteo
Aberdeen
Shoreline
Lynnwood
Shelton
Silverdale
Redmond
Monroe

Browse thousands of different options on Cheapflights for your next trip

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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 7 airlines flying from Singapore to Seattle

Discover the top 7 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 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$762Average$884FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$763Average$1,416FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$781Average$1,033FlexibilityNo cancel feeOn-time74%
STARLUX AirlinesCheapest$801Average$931FlexibilityNo cancel feeOn-timeN/A
ANACheapest$859Average$980FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$864Average$1,145FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$990Average$1,190FlexibilityNo cancel feeOn-time71%

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