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$265+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SIN
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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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 October 27, 2025.

This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1612:10 amSEA - SIN
1 stop29h 45mAsiana Airlines
Mon 11/2411:10 pmSIN - SEA
1 stop30h 45mAsiana Airlines
Deal found 10/27$708
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.
Wed 11/193:40 pmSEA - SIN
2 stops27h 35mAir Canada
Thu 11/278:50 amSIN - SEA
1 stop26h 26mAir Canada
Deal found 10/26$736
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/173:40 pmSEA - SIN
2 stops27h 35mAir Canada
Mon 11/249:00 pmSIN - SEA
2 stops28h 31mAir Canada
Deal found 10/27$738
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.
Sun 11/2312:10 amSEA - SIN
1 stop29h 45mAsiana Airlines
Mon 12/111:10 pmSIN - SEA
1 stop30h 45mAsiana Airlines
Deal found 10/26$739
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.
Mon 11/172:40 pmSEA - SIN
1 stop25h 20mUnited Airlines
Mon 11/2410:10 amSIN - SEA
1 stop24h 15mUnited Airlines
Deal found 10/27$755
This Korean Air 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/111:00 amSEA - SIN
1 stop21h 10mKorean Air
Tue 12/2310:30 pmSIN - SEA
1 stop26h 30mKorean Air
Deal found 10/27$758
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.
Tue 12/93:40 pmSEA - SIN
1 stop23h 15mUnited Airlines
Tue 12/1610:20 pmSIN - SEA
1 stop26h 04mUnited Airlines
Deal found 10/25$761
This Korean Air 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:10 amSEA - SIN
2 stops29h 50mKorean Air
Wed 12/2410:30 pmSIN - SEA
1 stop26h 30mKorean Air
Deal found 10/26$764
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:28 pmSEA - SIN
1 stop32h 47mUnited Airlines
Wed 11/2610:20 pmSIN - SEA
2 stops29h 19mUnited Airlines
Deal found 10/26$766
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/168:00 pmSEA - SIN
2 stops26h 50mAir Canada
Tue 11/258:50 amSIN - SEA
1 stop16h 41mAir Canada
Deal found 10/25$767

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 October 27, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$706
(oojo)

One-way from

$265
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$759

Good round-trip deal

$698 or less

Good one-way deal

$309 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Singapore Changi flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Singapore Changi flights.
Search Deals
From Seattle/Tacoma Intl to Singapore
Search Deals
One-way flight from Seattle/Tacoma Intl to Singapore
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($154 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($61 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 Seattle/Tacoma Intl to Singapore.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Singapore.
Search Deals

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 October 27, 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 2/16

12:10 am-9:55 pm

1 stop29h 45m

Singapore Changi

Sat 2/28

11:10 pm-1:55 pm

1 stop30h 45m

$758

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 3/11

12:10 am-9:55 pm

1 stop30h 45m

Singapore Changi

Sun 3/29

10:50 pm-2:55 pm

1 stop31h 05m

$758

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 12/3

3:45 pm-8:15 pm

2 stops36h 30m

Singapore Changi

Wed 12/24

10:20 pm-1:58 pm

2 stops31h 38m

$760

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Tue 11/18

5:05 am-8:00 am

2 stops34h 55m

Singapore Changi

Thu 11/27

10:10 am-4:10 pm

2 stops22h 00m

$760

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sun 1/11

3:30 pm-8:15 pm

2 stops36h 45m

Singapore Changi

Tue 2/3

10:20 pm-12:59 am

1 stop18h 39m

$760

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Thu 12/4

7:10 am-5:00 am

2 stops29h 50m

Singapore Changi

Wed 12/24

10:30 pm-9:00 am

1 stop26h 30m

$764

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 2/11

12:10 am-9:55 pm

1 stop29h 45m

Singapore Changi

Thu 2/26

11:10 pm-1:55 pm

1 stop30h 45m

$792

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sat 2/14

12:10 am-9:55 pm

1 stop29h 45m

Singapore Changi

Sat 2/21

11:10 pm-1:55 pm

1 stop30h 45m

$792

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Tue 1/13

11:00 am-12:10 am

1 stop21h 10m

Singapore Changi

Tue 2/3

1:35 am-9:00 am

1 stop23h 25m

$803

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 2/18

2:55 pm-8:00 am

2 stops25h 05m

Singapore Changi

Mon 3/2

10:45 am-1:20 pm

1 stop18h 35m

$804

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Showing 1-10 of 23 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 $547). Flying from Seattle to Singapore in December is currently the most expensive (average of $810). 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 October 27, 2025.

One of the essential ways to save on airfare from Seattle to Singapore is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 47% on airfare.

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 October 26, 2025.

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

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 October 27, 2025.
Get a feel of what it's like to fly with Korean Air, Asiana Airlines, and Singapore Airlines from Seattle to Singapore by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,153 reviews

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,153 reviews
Korean Air
8.4
Very good
1,153 reviews

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Asiana Airlines
8.2
Very good
483 reviews
Korean Air
8.4
Very good
1,153 reviews

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Singapore Airlines
8.1
Very good
1,388 reviews
Korean Air
8.4
Very good
1,153 reviews

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
United Airlines
7.4
Good
8,996 reviews
Korean Air
8.4
Very good
1,153 reviews

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Air Canada
7.1
Good
10,370 reviews
Korean Air
8.4
Very good
1,153 reviews

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

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, 101 users have taken a look at flights from Seattle/Tacoma Intl to Singapore.

  • How long is the flight from Seattle to Singapore?

    Asiana Airlines and United Airlines can get you from Seattle to Singapore in just under 29h 45m. Your travel time can differ by up to 6h 45m. The distance from Seattle to Singapore is about 8059 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $265. Users have also found prices from $302 and $368 on Philippine Airlines and Asiana Airlines, respectively.

  • What are the cheapest flights from Seattle to Singapore?

    On average you can expect to pay $2,170 for a flight from Seattle to Singapore. The cheapest flight overall is $277 while the most popular route, (Seattle/Tacoma Intl - Singapore Changi) is currently priced at $594.

  • 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 $547). Flying from Seattle to Singapore in December is currently the most expensive (average of $810). 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 October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$596Average$855FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$650Average$706FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$662Average$783FlexibilityNo cancel feeOn-time76%
Japan AirlinesCheapest$687Average$793FlexibilityNo cancel feeOn-time79%
Air CanadaCheapest$712Average$870FlexibilityNo cancel feeOn-time67%
ANACheapest$718Average$1,127FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$724Average$888FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$744Average$967FlexibilityNo cancel feeOn-time81%
DeltaCheapest$750Average$948FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$933Average$1,169FlexibilityNo cancel feeOn-time70%

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