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$476+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SIN
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$792
(Air Canada)

One-way from

$476
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,096

Good round-trip deal

$931 or less

Good one-way deal

$350 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Singapore Changi flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Singapore Changi flights.
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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. 6% potential increase in price ($68 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($50 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This Air Canada deal was found by Cheapflights users on 4/29. 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.
Fri 11/145:50 amSEA - SIN
1 stop34h 05mAir Canada
Sun 11/2310:00 amSIN - SEA
1 stop20h 26mAir Canada
Deal found 4/29$774
This ScholarTrip deal was found by Cheapflights users on 4/29. 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/179:25 pmSEA - SIN
1 stop29h 40mSingapore Airlines
Tue 11/259:00 amSIN - SEA
Nonstop14h 10mSingapore Airlines
Deal found 4/29$778
This KAYAK deal was found by Cheapflights users on 5/1. 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.
Wed 11/1911:55 pmSEA - SIN
1 stop21h 45mPhilippine Airlines
Fri 12/510:30 amSIN - SEA
1 stop25h 05mPhilippine Airlines
Deal found 5/1$781
This Air Canada deal was found by Cheapflights users on 4/30. 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.
Tue 6/35:30 amSEA - SIN
2 stops28h 20mMultiple Airlines
Tue 6/109:10 amSIN - SEA
1 stop18h 48mMultiple Airlines
Deal found 4/30$796
This oojo deal was found by Cheapflights users on 4/30. 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.
Mon 9/12:15 pmSEA - SIN
1 stop40h 15mAsiana Airlines
Sun 9/710:50 pmSIN - SEA
1 stop28h 40mAsiana Airlines
Deal found 4/30$831
This oojo deal was found by Cheapflights users on 4/30. 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 5/2112:50 pmSEA - SIN
1 stop19h 50mKorean Air
Tue 5/271:10 amSIN - SEA
1 stop24h 30mKorean Air
Deal found 4/30$847
This Delta deal was found by Cheapflights users on 5/1. 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 stop20h 55mDelta
Tue 12/911:00 amSIN - SEA
1 stop18h 05mDelta
Deal found 5/1$889
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sun 5/115:13 pmSEA - SIN
2 stops34h 12mUnited Airlines
Thu 5/298:45 amSIN - SEA
2 stops27h 23mUnited Airlines
Deal found 4/30$894
This oojo deal was found by Cheapflights users on 4/30. 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.
Sun 9/141:30 pmSEA - SIN
1 stop19h 50mJapan Airlines
Mon 9/298:05 amSIN - SEA
1 stop17h 20mJapan Airlines
Deal found 4/30$912
This Gurufare deal was found by Cheapflights users on 4/30. 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.
Mon 5/197:20 amSEA - SIN
2 stops31h 05mChina Eastern
Sat 5/2412:55 amSIN - SEA
2 stops30h 50mChina Eastern
Deal found 4/30$930
This FlightHub deal was found by Cheapflights users on 4/29. 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.
Wed 5/287:10 pmSEA - SIN
1 stop31h 45mTurkish Airlines
Fri 6/1310:15 amSIN - SEA
1 stop39h 20mTurkish Airlines
Deal found 4/29$949
This StudentUniverse deal was found by Cheapflights users on 4/30. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/211:15 amSEA - SIN
1 stop20h 25mSTARLUX Airlines
Mon 10/62:00 pmSIN - SEA
1 stop17h 10mSTARLUX Airlines
Deal found 4/30$952

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 May 1, 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

Fri 5/23

7:15 pm-7:05 am

1 stop20h 50m

Singapore Changi

Sat 6/14

9:10 am-2:13 pm

1 stop20h 03m

$792

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Tue 6/3

5:30 am-12:50 am

2 stops28h 20m

Singapore Changi

Tue 6/10

9:10 am-12:58 pm

1 stop18h 48m

$796

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 10/1

7:00 am-5:15 am

1 stop31h 15m

Singapore Changi

Sat 10/11

9:00 am-8:45 am

Nonstop14h 45m

$798

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 10/1

11:35 pm-9:25 am

1 stop18h 50m

Singapore Changi

Sat 10/11

8:00 pm-7:15 pm

1 stop38h 15m

$829

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Mon 9/1

2:15 pm-9:30 pm

1 stop40h 15m

Singapore Changi

Sun 9/7

10:50 pm-12:30 pm

1 stop28h 40m

$831

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 5/21

12:50 pm-11:40 pm

1 stop19h 50m

Singapore Changi

Wed 5/28

10:30 pm-10:40 am

1 stop27h 10m

$847

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Tue 5/13

12:40 pm-7:55 pm

1 stop40h 15m

Singapore Changi

Wed 5/28

1:10 am-1:35 pm

1 stop27h 25m

$889

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Mon 5/12

5:05 am-6:25 pm

1 stop22h 20m

Singapore Changi

Wed 5/28

8:40 pm-12:59 am

1 stop19h 19m

$890

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sun 9/14

1:30 pm-12:20 am

1 stop19h 50m

Singapore Changi

Mon 9/29

8:05 am-10:25 am

1 stop17h 20m

$912

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Mon 5/19

7:20 am-5:25 am

2 stops31h 05m

Singapore Changi

Sat 5/24

12:55 am-4:45 pm

2 stops30h 50m

$930

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 34 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 May 1, 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 March 30, 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 May 1, 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
161 reviews

Boarding

9.0

Comfort

9.0

Food

8.9

Entertainment

9.0

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

Boarding

9.0

Comfort

9.0

Food

8.9

Entertainment

9.0

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
1,186 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Boarding

9.0

Comfort

9.0

Food

8.9

Entertainment

9.0

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
1,068 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Boarding

9.0

Comfort

9.0

Food

8.9

Entertainment

9.0

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
1,464 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Boarding

9.0

Comfort

9.0

Food

8.9

Entertainment

9.0

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
732 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Boarding

9.0

Comfort

9.0

Food

8.9

Entertainment

9.0

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 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, 55 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 United Airlines. According to our data, you can fly for as low as $477. Users have also found prices from $480 and $483 on Korean Air and Singapore Airlines, respectively.

  • What are the cheapest flights from Seattle to Singapore?

    On average you can expect to pay $2,078 for a flight from Seattle to Singapore. The cheapest flight overall is $327 while the most popular route, (Seattle/Tacoma Intl - Singapore Changi) is currently priced at $694.

  • 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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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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$685Average$1,116FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$689Average$779FlexibilityNo cancel feeOn-time76%
Philippine AirlinesCheapest$694Average$782FlexibilityNo cancel feeOn-time60%
Japan AirlinesCheapest$716Average$1,147FlexibilityNo cancel feeOn-time79%
Korean AirCheapest$722Average$884FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$725Average$917FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$728Average$901FlexibilityNo cancel feeOn-time67%
DeltaCheapest$750Average$1,234FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$899Average$1,057FlexibilityNo cancel feeOn-time70%
Alaska AirlinesCheapest$972Average$1,075FlexibilityNo cancel feeOn-time75%

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