What’s the cheapest layover airport for flights from Seattle to Singapore?

Incheon (ICN) is the most affordable 1-stop option, with an average round-trip price of $764.

What’s the top layover airport for flights from Seattle to Singapore?

Incheon (ICN) – chosen by Cheapflights users on 57% of 1-stop itineraries from Seattle to Singapore on Cheapflights.

What’s the fastest layover option from Seattle to Singapore?

Flights via Taipei City (TPE) have the shortest average one-way travel time for 1-stop routes: 20h 25m.

Which airport typically offers the quickest layover for flights from Seattle to Singapore?

Flights via San Francisco (SFO) offer the fastest connection on this route, with an average layover time of 3h 19m.

How popular is this Seattle to Singapore flight route?

Within the past month, 88 users have taken a look at flights from Seattle/Tacoma Intl to Singapore Changi.

How long is the flight from Seattle to Singapore?

United Airlines, Asiana Airlines, and Korean Air can get you from Seattle to Singapore in just under 20h 32m. Your travel time can differ by up to 10h 03m. 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 flying from Seattle to Singapore round-trip?

Singapore Airlines, at $598, was found to be the cheapest airline from Seattle to Singapore.Alternate airlines to your destination round-trip include Japan Airlines and Asiana Airlines. Singapore Airlines is priced at 36% lower than the current average price of a flight leaving 3 months from now.

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

For one-way options, check prices for Philippine Airlines. According to our data, you can fly for as low as $296. Users have also found prices from $370 and $387 on Asiana Airlines and Air Canada, respectively.

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.

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).

What are the cheapest flights from Seattle to Singapore?

Looking for the cheapest flight from Seattle to Singapore? While on average our users pay $2,133, our data indicates the cheapest price to be $284. The most popular route (Seattle/Tacoma Intl - Singapore Changi), is priced around $567.

What are the most popular airlines that fly from Seattle to Singapore?

Air Canada, Alaska Airlines and EVA Air are the most popular airlines when flying from Seattle to Singapore.

Where are the most common layover locations when flying from Seattle to Singapore?

Flights departing from Seattle and landing in Singapore layover in Seoul most frequently. Seoul is followed by Tokyo in terms of the most popular layover location on flights from Seattle to Singapore.

Where are the least popular layover locations for Seattle to Singapore flights?

The least popular layover on flights from Seattle to Singapore is San Francisco.

What are some popular things to do or see while on a layover in Seoul?

Dongdaemun Market, Lotte World, and Bukchon Hanok Village are currently the most popular points of interest in Seoul at the moment. Dongdaemun Market, Lotte World and Bukchon Hanok Village are located about 31.6 mi, 35.7 mi, and 30.6 mi, respectively from Incheon Intl if you are interested in checking them out. Those looking to explore during their layover in Seoul can rent a car from Incheon Intl for about $64 per day.

What are some popular points of interest to see during a layover in Tokyo?

Tokyo travelers tend to visit Akihabara Electric Town, Tsukiji Outer Market, and Tokyo Tower more than any other notable places. Akihabara Electric Town, Tsukiji Outer Market, and Tokyo Tower can be accessed by traveling approximately 34.6 mi, 35.3 mi, and 36.7 mi, respectively from Tokyo Narita. Travelers in need of a car in Tokyo can rent one for about $50 per day.

What is the cheapest day to fly round-trip from Seattle to Singapore?

Flying to your destination on a Sunday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Singapore. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from Seattle to Singapore?

Find a great deal and save up to 74% by booking at least 17 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Seattle to Singapore within the next two weeks, with the cheapest ticket starting at $806.

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

The best pricing can be found in the month of February. Prices to Singapore from Seattle average $945. You can even find prices in February for less than $945, as users have found deals to Singapore from as low as $594. The month of December appears to be one of the more expensive times to travel to Singapore from Seattle. Flying in the targeted month can save you up to 61%.

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.

$267+ Flights from Seattle to Singapore

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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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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Singapore Changi are usually found in February or March, booked 16 days in advance, depart on a Tuesday or Sunday and return on a Monday

Cheap flight deals from Seattle to Singapore

Round-trip from	$567 (oojo)
One-way from	$267 (FlightHub)
Popular in	December
Cheapest in	February
Average price	$822
Good round-trip deal	$718 or less
Good one-way deal	$346 or less

From Seattle/Tacoma Intl to Singapore Changi

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One-way flight from Seattle/Tacoma Intl to Singapore Changi

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($137 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($53 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Singapore Changi.

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Price to beat on a one-way flight from Seattle/Tacoma Intl to Singapore Changi.

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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 September 11, 2025.

Tue 10/289:45 amSEA - SIN

Nonstop17h 00mSingapore Airlines

Tue 11/49:00 amSIN - SEA

Nonstop14h 10mSingapore Airlines

Deal found 9/11

$605

Sun 10/1211:35 pmSEA - SIN

1 stop22h 45mPhilippine Airlines

Sun 10/192:35 pmSIN - SEA

1 stop19h 40mPhilippine Airlines

Deal found 9/10

$617

Sun 10/2610:30 pmSEA - SIN

1 stop20h 05mPhilippine Airlines

Sat 11/112:40 amSIN - SEA

1 stop33h 55mPhilippine Airlines

Deal found 9/10

$629

Wed 9/2411:35 pmSEA - SIN

1 stop32h 45mPhilippine Airlines

Sat 10/188:00 pmSIN - SEA

1 stop38h 15mPhilippine Airlines

Deal found 9/10

$635

Sun 10/1211:35 pmSEA - SIN

1 stop18h 50mPhilippine Airlines

Tue 10/218:00 pmSIN - SEA

1 stop38h 15mPhilippine Airlines

Deal found 9/9

$636

Tue 11/118:45 amSEA - SIN

Nonstop17h 00mSingapore Airlines

Sat 11/229:00 amSIN - SEA

Nonstop14h 10mSingapore Airlines

Deal found 9/10

$639

Fri 11/148:45 amSEA - SIN

Nonstop17h 00mSingapore Airlines

Sat 11/229:00 amSIN - SEA

Nonstop14h 10mSingapore Airlines

Deal found 9/11

$649

Thu 10/309:45 amSEA - SIN

Nonstop17h 00mSingapore Airlines

Thu 11/139:00 amSIN - SEA

Nonstop14h 10mSingapore Airlines

Deal found 9/9

$654

Fri 11/219:30 pmSEA - SIN

1 stop20h 05mPhilippine Airlines

Thu 12/42:10 pmSIN - SEA

1 stop20h 25mPhilippine Airlines

Deal found 9/11

$655

Best flights from Seattle to Singapore
Discover carefully curated flight deals from Seattle to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Tue 10/287:28 pmSEA - SIN

1 stop20h 32mUnited Airlines

Tue 11/410:10 amSIN - SEA

1 stop19h 28mUnited Airlines

Deal found 9/11

$756

Mon 3/212:10 amSEA - SIN

1 stop29h 45mAsiana Airlines

Sat 6/2010:50 pmSIN - SEA

1 stop31h 05mAsiana Airlines

Deal found 9/10

$759

Thu 10/307:25 amSEA - SIN

2 stops30h 35mKorean Air

Wed 11/121:35 amSIN - SEA

2 stops30h 47mKorean Air

Deal found 9/9

$768

Mon 2/912:10 amSEA - SIN

1 stop29h 45mAsiana Airlines

Sun 2/1511:10 pmSIN - SEA

1 stop30h 45mAsiana Airlines

Deal found 9/10

$759

Wed 10/16:55 pmSEA - SIN

2 stops32h 30mUnited Airlines

Sat 10/118:45 amSIN - SEA

1 stop29h 30mUnited Airlines

Deal found 9/9

$798

Sun 9/282:15 pmSEA - SIN

1 stop40h 15mAsiana Airlines

Mon 10/610:50 pmSIN - SEA

1 stop28h 40mAsiana Airlines

Deal found 9/9

$793

Mon 2/99:25 amSEA - SIN

1 stop30h 35mUnited Airlines

Mon 2/1610:10 amSIN - SEA

1 stop26h 44mUnited Airlines

Deal found 9/10

$801

Sun 2/83:30 pmSEA - SIN

2 stops36h 45mUnited Airlines

Mon 2/1610:20 pmSIN - SEA

1 stop28h 50mUnited Airlines

Deal found 9/10

$805

Sun 2/83:30 pmSEA - SIN

2 stops36h 45mUnited Airlines

Tue 2/1710:10 amSIN - SEA

1 stop24h 07mUnited Airlines

Deal found 9/10

$805

Mon 2/93:30 pmSEA - SIN

2 stops36h 45mUnited Airlines

Thu 2/1910:20 pmSIN - SEA

1 stop18h 11mUnited Airlines

Deal found 9/10

$805

Fri 10/317:00 amSEA - SIN

1 stop22h 15mUnited Airlines

Mon 11/2410:10 amSIN - SEA

1 stop24h 15mUnited Airlines

Deal found 9/11

$806

Last-minute flights from Seattle to Singapore
Discover last-minute flight deals from Seattle to Singapore. Data last updated September 11, 2025 and is based on user searches.

Wed 9/2411:35 pmSEA - SIN

1 stop32h 45mPhilippine Airlines

Sat 10/188:00 pmSIN - SEA

1 stop38h 15mPhilippine Airlines

Deal found 9/10

$635

Fri 10/311:35 pmSEA - SIN

1 stop28h 20mPhilippine Airlines

Sun 10/122:35 pmSIN - SEA

1 stop19h 40mPhilippine Airlines

Deal found 9/9

$656

Fri 10/311:35 pmSEA - SIN

1 stop32h 45mPhilippine Airlines

Tue 10/148:00 pmSIN - SEA

1 stop38h 15mPhilippine Airlines

Deal found 9/10

$673

Sun 10/1211:35 pmSEA - SIN

1 stop22h 45mPhilippine Airlines

Sun 10/192:35 pmSIN - SEA

1 stop19h 40mPhilippine Airlines

Deal found 9/10

$617

Sun 10/1211:35 pmSEA - SIN

1 stop18h 50mPhilippine Airlines

Tue 10/218:00 pmSIN - SEA

1 stop38h 15mPhilippine Airlines

Deal found 9/9

$636

Sun 10/2610:30 pmSEA - SIN

1 stop20h 05mPhilippine Airlines

Sat 11/112:40 amSIN - SEA

1 stop33h 55mPhilippine Airlines

Deal found 9/10

$629

Tue 10/289:45 amSEA - SIN

Nonstop17h 00mSingapore Airlines

Tue 11/49:00 amSIN - SEA

Nonstop14h 10mSingapore Airlines

Deal found 9/11

$605

Thu 10/309:45 amSEA - SIN

Nonstop17h 00mSingapore Airlines

Thu 11/139:00 amSIN - SEA

Nonstop14h 10mSingapore Airlines

Deal found 9/9

$654

Fri 10/319:45 amSEA - SIN

Nonstop17h 00mSingapore Airlines

Tue 11/259:00 amSIN - SEA

Nonstop14h 10mSingapore Airlines

Deal found 9/11

$666

One-way flights from Seattle to Singapore
Search for one-way flight options from Seattle to Singapore. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Sat 2/148:45 amSEA - SIN

Nonstop17h 00mSingapore Airlines

Deal found 9/8

$267

Wed 9/1711:35 pmSEA - SIN

1 stop18h 50mPhilippine Airlines

Deal found 9/9

$295

Wed 2/189:30 pmSEA - SIN

1 stop23h 30mPhilippine Airlines

Deal found 9/10

$296

Sun 10/2610:30 pmSEA - SIN

1 stop20h 05mPhilippine Airlines

Deal found 9/11

$297

Sat 2/78:45 amSEA - SIN

Nonstop17h 00mSingapore Airlines

Deal found 9/10

$303

Sun 10/1211:35 pmSEA - SIN

1 stop28h 20mPhilippine Airlines

Deal found 9/11

$307

Sun 9/2111:35 pmSEA - SIN

1 stop28h 20mPhilippine Airlines

Deal found 9/10

$315

Wed 9/2411:35 pmSEA - SIN

1 stop28h 20mPhilippine Airlines

Deal found 9/11

$316

Sun 9/2811:35 pmSEA - SIN

1 stop22h 45mPhilippine Airlines

Deal found 9/11

$319

Sun 2/159:30 pmSEA - SIN

1 stop29h 40mPhilippine Airlines

Deal found 9/11

$320

Tue 2/178:45 amSEA - SIN

Nonstop17h 00mSingapore Airlines

Deal found 9/11

$327

Fri 9/1911:35 pmSEA - SIN

1 stop18h 50mPhilippine Airlines

Deal found 9/10

$344

Fly from

Fly to

Route

Depart

Return

Price

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Tue 10/28

7:28 pm-7:00 am

1 stop20h 32m

Singapore Changi

Tue 11/4

10:10 am-1:38 pm

1 stop19h 28m

$756

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Mon 3/2

12:10 am-9:55 pm

1 stop29h 45m

Singapore Changi

Sat 6/20

10:50 pm-2:55 pm

1 stop31h 05m

$759

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Mon 2/9

12:10 am-9:55 pm

1 stop29h 45m

Singapore Changi

Sun 2/15

11:10 pm-1:55 pm

1 stop30h 45m

$759

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Thu 10/30

7:25 am-5:00 am

2 stops30h 35m

Singapore Changi

Wed 11/12

1:35 am-4:22 pm

2 stops30h 47m

$768

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sun 9/28

2:15 pm-9:30 pm

1 stop40h 15m

Singapore Changi

Mon 10/6

10:50 pm-12:30 pm

1 stop28h 40m

$793

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 10/1

6:55 pm-6:25 pm

2 stops32h 30m

Singapore Changi

Sat 10/11

8:45 am-11:15 pm

1 stop29h 30m

$798

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Mon 2/9

9:25 am-8:00 am

1 stop30h 35m

Singapore Changi

Mon 2/16

10:10 am-8:54 pm

1 stop26h 44m

$801

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sun 2/8

3:30 pm-8:15 pm

2 stops36h 45m

Singapore Changi

Mon 2/16

10:20 pm-11:10 am

1 stop28h 50m

$805

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sun 2/8

3:30 pm-8:15 pm

2 stops36h 45m

Singapore Changi

Tue 2/17

10:10 am-6:17 pm

1 stop24h 07m

$805

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Mon 2/9

3:30 pm-8:15 pm

2 stops36h 45m

Singapore Changi

Thu 2/19

10:20 pm-12:31 am

1 stop18h 11m

$805

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 21 results

The best insider tips for Seattle to Singapore flights

Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Singapore trip

Airports

SEA

Use SEA Spot Saver for free security screening appointments to reduce wait times. Reserve online a few days before your flight.

SIN

For quick city access, use the Grab rideshare app from SIN. It's faster and cheaper than taxis, especially from Terminal 4.

Our travel experts

Yulia Denisyuk

Expert on SIN

Brandon Schultz

Expert on SEA

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

Prices

How far ahead should I book a flight from Seattle to Singapore?

Booking 16 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Singapore. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, October is the cheapest month in which you can book a flight from Seattle to Singapore (average of $1,002). Flying from Seattle to Singapore in December is currently the most expensive (average of $1,665). 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 SIN?

It’s typically best to fly out from Seattle to Singapore at noon. Doing so could potentially save you 12% on the flight price compared to flying in the evening, which is usually more expensive.

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

Travelers seeking maximum savings on their Seattle to Singapore flight should consider departing on Tuesday at noon 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

Read through reviews of airlines operating flights from Seattle to Singapore, such as Korean Air, Asiana Airlines, and Singapore Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Korean Air

8.4

Very good

1,139 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Asiana Airlines

8.2

Very good

479 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Singapore Airlines

8.1

Very good

1,365 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

United Airlines

7.4

Good

8,937 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Air Canada

7.1

Good

10,000 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Related info for your journey

How popular is this Seattle to Singapore flight route?
Within the past month, 88 users have taken a look at flights from Seattle/Tacoma Intl to Singapore Changi.
How long is the flight from Seattle to Singapore?
United Airlines, Asiana Airlines, and Korean Air can get you from Seattle to Singapore in just under 20h 32m. Your travel time can differ by up to 10h 03m. 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 flying from Seattle to Singapore round-trip?
Singapore Airlines, at $598, was found to be the cheapest airline from Seattle to Singapore.Alternate airlines to your destination round-trip include Japan Airlines and Asiana Airlines. Singapore Airlines is priced at 36% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Seattle to Singapore one-way?
For one-way options, check prices for Philippine Airlines. According to our data, you can fly for as low as $296. Users have also found prices from $370 and $387 on Asiana Airlines and Air Canada, respectively.
What are the cheapest flights from Seattle to Singapore?
Looking for the cheapest flight from Seattle to Singapore? While on average our users pay $2,133, our data indicates the cheapest price to be $284. The most popular route (Seattle/Tacoma Intl - Singapore Changi), is priced around $567.
Where are the most common layover locations when flying from Seattle to Singapore?
Flights departing from Seattle and landing in Singapore layover in Seoul most frequently. Seoul is followed by Tokyo in terms of the most popular layover location on flights from Seattle to Singapore.
What are some popular things to do or see while on a layover in Seoul?
Dongdaemun Market, Lotte World, and Bukchon Hanok Village are currently the most popular points of interest in Seoul at the moment. Dongdaemun Market, Lotte World and Bukchon Hanok Village are located about 31.6 mi, 35.7 mi, and 30.6 mi, respectively from Incheon Intl if you are interested in checking them out. Those looking to explore during their layover in Seoul can rent a car from Incheon Intl for about $64 per day.
What are some popular points of interest to see during a layover in Tokyo?
Tokyo travelers tend to visit Akihabara Electric Town, Tsukiji Outer Market, and Tokyo Tower more than any other notable places. Akihabara Electric Town, Tsukiji Outer Market, and Tokyo Tower can be accessed by traveling approximately 34.6 mi, 35.3 mi, and 36.7 mi, respectively from Tokyo Narita. Travelers in need of a car in Tokyo can rent one for about $50 per day.
Where are the least popular layover locations for Seattle to Singapore flights?
The least popular layover on flights from Seattle to Singapore is San Francisco.
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, October is the cheapest month in which you can book a flight from Seattle to Singapore (average of $1,002). Flying from Seattle to Singapore in December is currently the most expensive (average of $1,665). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Seattle to Singapore

Portland to Singapore flights

Spokane to Singapore flights

Other flights to Singapore

Top 10 airlines flying from Seattle to Singapore

Airline	Cheapest	Average	Flexibility	On-time
Singapore Airlines	Cheapest$598	Average$973	FlexibilityNo cancel fee	On-time81%
Japan Airlines	Cheapest$687	Average$827	FlexibilityNo cancel fee	On-time79%
Asiana Airlines	Cheapest$689	Average$783	FlexibilityNo cancel fee	On-time76%
Philippine Airlines	Cheapest$694	Average$750	FlexibilityNo cancel fee	On-time60%
Air Canada	Cheapest$713	Average$877	FlexibilityNo cancel fee	On-time67%
ANA	Cheapest$718	Average$1,081	FlexibilityNo cancel fee	On-time80%
United Airlines	Cheapest$724	Average$888	FlexibilityNo cancel fee	On-time69%
Korean Air	Cheapest$744	Average$981	FlexibilityNo cancel fee	On-time81%
Delta	Cheapest$750	Average$938	FlexibilityNo cancel fee	On-timeN/A
China Airlines	Cheapest$933	Average$1,113	FlexibilityNo cancel fee	On-time70%

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$267+ Cheap flights from Seattle (SEA) to Singapore (SIN)

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 2/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Singapore with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Singapore Changi are usually found in February or March, booked 16 days in advance, depart on a Tuesday or Sunday and return on a Monday

Cheap flight deals from Seattle to Singapore

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Seattle to Singapore

Cheapest flights from Seattle to SingaporeExplore 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 September 11, 2025.

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 September 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Singapore that are best for you.

The best insider tips for Seattle to Singapore flights

Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Singapore trip

Airports

SEA

SIN

Our travel experts

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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Singapore

How far ahead should I book a flight from Seattle to Singapore?

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

What is the cheapest time of day to fly from SEA to SIN?

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

What’s the top layover airport for flights from Seattle to Singapore?

What’s the fastest layover option from Seattle to Singapore?

What’s the fastest layover option from Seattle to Singapore?

Which airport typically offers the quickest layover for flights from Seattle to Singapore?

Reviews of airlines servicing Singapore

Read through reviews of airlines operating flights from Seattle to Singapore, such as Korean Air, Asiana Airlines, and Singapore Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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.

How popular is this Seattle to Singapore flight route?

How long is the flight from Seattle to Singapore?

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

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

What are the cheapest flights from Seattle to Singapore?

Where are the most common layover locations when flying from Seattle to Singapore?

What are some popular things to do or see while on a layover in Seoul?

What are some popular points of interest to see during a layover in Tokyo?

Where are the least popular layover locations for Seattle to Singapore flights?

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

How can I find direct flights from Seattle to Singapore?

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

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

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Alternative routes for Seattle to Singapore

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Top 10 airlines flying from Seattle to Singapore

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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 September 11, 2025.