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$346+ Cheap flights from Seattle (SEA) to Singapore

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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SIN
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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Cheap flight deals from Seattle to Singapore

Keep the following information in mind while searching for Seattle to Singapore flight deals. Data was last updated June 18, 2025.

Round-trip from

$814
(Gotogate)

One-way from

$349
(FlightHub)

Popular in

December

Cheapest in

February

Average price

$1,212

Good round-trip deal

$748 or less

Good one-way deal

$348 or less
From Seattle/Tacoma Intl to Singapore
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One-way flight from Seattle/Tacoma Intl to Singapore
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Highest demand for flights based on searches. 9% potential increase in price ($104 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Singapore.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Singapore.
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Find flight deals from Seattle to Singapore

Cheapest flights from Seattle to Singapore
Explore the most affordable flight options available from Seattle to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.

This Gotogate deal was found by Cheapflights users on 6/15. 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.
Mon 7/142:30 pmSEA - SIN
1 stop40h 00mAsiana Airlines
Mon 7/2110:50 pmSIN - SEA
1 stop28h 55mAsiana Airlines
Deal found 6/15$814
This Air Canada deal was found by Cheapflights users on 6/16. 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.
Sun 9/77:15 pmSEA - SIN
2 stops38h 35mMultiple Airlines
Sun 9/219:45 amSIN - SEA
2 stops27h 31mMultiple Airlines
Deal found 6/16$815
This Air Canada deal was found by Cheapflights users on 6/16. 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.
Thu 7/32:55 pmSEA - SIN
1 stop25h 10mAir Canada
Sun 7/209:10 amSIN - SEA
1 stop18h 56mAir Canada
Deal found 6/16$819
This CrystalTravel deal was found by Cheapflights users on 6/16. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:28 amSEA - SIN
2 stops25h 12mKorean Air
Wed 9/177:30 amSIN - SEA
1 stop18h 10mKorean Air
Deal found 6/16$826
This Gurufare deal was found by Cheapflights users on 6/17. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/710:15 amSEA - SIN
Nonstop16h 20mSingapore Airlines
Sun 9/219:00 amSIN - SEA
Nonstop14h 45mSingapore Airlines
Deal found 6/17$839
This Delta deal was found by Cheapflights users on 6/17. 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.
Mon 11/2411:15 amSEA - SIN
1 stop41h 10mDelta
Mon 12/110:30 pmSIN - SEA
1 stop30h 50mDelta
Deal found 6/17$891
This United Airlines deal was found by Cheapflights users on 6/17. 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 7/1512:40 pmSEA - SIN
1 stop38h 45mUnited Airlines
Thu 8/288:45 amSIN - SEA
1 stop21h 29mUnited Airlines
Deal found 6/17$897
This oojo deal was found by Cheapflights users on 6/16. 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.
Tue 8/191:40 amSEA - SIN
1 stop19h 55mChina Airlines
Thu 9/111:45 pmSIN - SEA
1 stop21h 00mChina Airlines
Deal found 6/16$928
This KAYAK deal was found by Cheapflights users on 6/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/174:30 pmSEA - SIN
1 stop33h 45mANA
Sun 8/2410:10 pmSIN - SEA
1 stop31h 15mANA
Deal found 6/17$934
This FlightHub deal was found by Cheapflights users on 6/17. 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.
Thu 7/106:40 amSEA - SIN
2 stops31h 45mChina Eastern
Sat 7/1912:55 amSIN - SEA
2 stops30h 56mChina Eastern
Deal found 6/17$976
This CrystalTravel deal was found by Cheapflights users on 6/16. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/281:15 amSEA - SIN
1 stop20h 25mSTARLUX Airlines
Fri 9/52:00 pmSIN - SEA
1 stop17h 10mSTARLUX Airlines
Deal found 6/16$992

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Singapore 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 June 18, 2025.
Use the filters below to find and compare flights from Seattle to Singapore that are best for you.

Fly from

Seattle

Fly to

Singapore

Route

Depart

Return

Price

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Mon 7/14

2:30 pm-9:30 pm

1 stop40h 00m

Singapore Changi

Mon 7/21

10:50 pm-12:45 pm

1 stop28h 55m

$814

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sun 9/7

7:15 pm-12:50 am

2 stops38h 35m

Singapore Changi

Sun 9/21

9:45 am-10:16 pm

2 stops27h 31m

$815

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Thu 7/3

2:55 pm-7:05 am

1 stop25h 10m

Singapore Changi

Sun 7/20

9:10 am-1:06 pm

1 stop18h 56m

$819

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 9/10

7:28 am-11:40 pm

2 stops25h 12m

Singapore Changi

Wed 9/17

7:30 am-10:40 am

1 stop18h 10m

$826

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sun 9/7

10:15 am-5:35 pm

Nonstop16h 20m

Singapore Changi

Sun 9/21

9:00 am-8:45 am

Nonstop14h 45m

$839

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 7/16

12:45 pm-5:00 am

1 stop25h 15m

Singapore Changi

Mon 8/25

10:30 pm-2:01 pm

1 stop30h 31m

$891

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Tue 7/15

12:40 pm-6:25 pm

1 stop38h 45m

Singapore Changi

Thu 8/28

8:45 am-3:14 pm

1 stop21h 29m

$897

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Tue 8/19

1:40 am-12:35 pm

1 stop19h 55m

Singapore Changi

Thu 9/11

1:45 pm-7:45 pm

1 stop21h 00m

$928

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Fri 9/5

1:30 pm-12:20 am

1 stop19h 50m

Singapore Changi

Sun 9/7

1:55 am-4:54 pm

2 stops29h 59m

$929

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Thu 7/17

4:30 pm-5:15 pm

1 stop33h 45m

Singapore Changi

Sun 8/24

10:10 pm-2:25 pm

1 stop31h 15m

$934

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/18

Showing 1-10 of 25 results
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Best time to book a flight from Seattle to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Seattle 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 Seattle to Singapore

What is the cheapest month to book a flight from Seattle to Singapore?

Currently, September is the cheapest month in which you can book a flight from Seattle to Singapore (average of $1,011). Flying from Seattle to Singapore in December is currently the most expensive (average of $1,684). 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 SEA to SG?

Find hourly flight availability from Seattle to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 18, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Singapore as you normally would.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Singapore. Price data was last updated on June 15, 2025.

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

Rainfall in Singapore by month

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

In terms of precipitation, rainfall in Singapore ranges from 5.9 - 10.6 inches per month. December is typically the wettest month, when rainfall can reach 10.6 in. July is typically the driest time to visit Singapore when rainfall is around 5.9 in.

Temperature in Singapore by month

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

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. 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 Singapore. Reviews last updated June 18, 2025.
Peruse reviews from past customers who have flown with STARLUX Airlines, EVA Air and Korean Air from Seattle to Singapore to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
180 reviews

Boarding

9.0

Entertainment

9.0

Food

8.9

Overall

9.1

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.1
Wonderful
180 reviews
STARLUX Airlines
9.1
Wonderful
180 reviews

Boarding

9.0

Entertainment

9.0

Food

8.9

Overall

9.1

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very good
1,205 reviews
STARLUX Airlines
9.1
Wonderful
180 reviews

Boarding

9.0

Entertainment

9.0

Food

8.9

Overall

9.1

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,090 reviews
STARLUX Airlines
9.1
Wonderful
180 reviews

Boarding

9.0

Entertainment

9.0

Food

8.9

Overall

9.1

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
China Airlines
8.3
Very good
742 reviews
STARLUX Airlines
9.1
Wonderful
180 reviews

Boarding

9.0

Entertainment

9.0

Food

8.9

Overall

9.1

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
ANA
8.3
Very good
886 reviews
STARLUX Airlines
9.1
Wonderful
180 reviews

Boarding

9.0

Entertainment

9.0

Food

8.9

Overall

9.1

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Singapore?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Singapore. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

  • How popular is this Seattle to Singapore flight route?

    Within the past month, 73 users have taken a look at flights from Seattle/Tacoma Intl to Singapore.

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

    For one-way options, check prices for Singapore Airlines. According to our data, you can fly for as low as $349. Users have also found prices from $426 and $448 on Asiana Airlines and Korean Air, respectively.

  • What are the cheapest flights from Seattle to Singapore?

    On average you can expect to pay $2,055 for a flight from Seattle to Singapore. The cheapest flight overall is $325 while the most popular route, (Seattle/Tacoma Intl - Singapore Changi) is currently priced at $549.

  • Can I find deals for flights from Seattle to Singapore that include hotel bookings?

    Yes. In addition to deals on Seattle to Singapore flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Singapore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Singapore.

  • Can I find deals for business class flights from Seattle to Singapore?

    Yes. Cheapflights offers flight deals from Seattle to Singapore 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 Seattle to Singapore?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Singapore (average of $1,011). Flying from Seattle to Singapore in December is currently the most expensive (average of $1,684). 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

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Seattle to Singapore

Discover the top 10 airlines that operate flights from Seattle to Singapore. 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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$683Average$1,096FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$692Average$788FlexibilityNo cancel feeOn-time76%
Philippine AirlinesCheapest$694Average$757FlexibilityNo cancel feeOn-time60%
Japan AirlinesCheapest$703Average$875FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$725Average$888FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$727Average$890FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$728Average$955FlexibilityNo cancel feeOn-time81%
DeltaCheapest$750Average$1,239FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$933Average$1,096FlexibilityNo cancel feeOn-time70%
STARLUX AirlinesCheapest$966Average$1,173FlexibilityNo cancel feeOn-timeN/A

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