What airlines fly to Singapore?

Singapore Airlines, United Airlines and Air Canada are the top three most popular airlines that fly to Singapore from Seattle according to our data. Singapore Airlines is the first choice among our users, with 62% of people opting to fly with this airline when traveling to Singapore. Keep in mind that there are 12 different airlines that fly to Singapore on a routine basis, so you have a few additional options to choose from.

How often are flights from Seattle to Singapore delayed?

Historically, on average around 25% of flights between Seattle and Singapore have experienced a delay on any given week. The average delay length over the past 12 months has been 123 minutes.

Which airport is the most popular layover for flights between Seattle and Singapore?

Incheon (ICN) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

What day of the week experiences the fewest flight delays on this route?

Friday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which layover airport has the shortest connection time from Seattle to Singapore?

Tokyo (NRT) has the shortest average layover time for this route: 2h 20m.

Which layover airport has the shortest travel time from Seattle to Singapore?

Flights connecting via Manila (MNL) have the shortest average one-way travel time: 19h 15m.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Singapore Changi?

Singapore Airlines, Philippine Airlines, and Asiana Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Singapore Changi

What is the most punctual flight time for Seattle to Singapore flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Which layover airport offers the lowest fares from Seattle to Singapore?

Flights via Incheon (ICN) offer the lowest average round-trip price of $801.

Which airline has the best punctuality record on Seattle to Singapore flights?

According to our data, Singapore Airlines have had the least number of delays on this route over the last 12 months; with about 25% of their flights experiencing any sort of delay.

How many flights depart from Seattle to Singapore on average per week?

4 flights are operational weekly from Seattle to Singapore as of December 2025. The most popular departure day for this route is Tue, with 25% of flights per week taking off on this day.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Singapore Changi Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Singapore Changi Airport are updated daily.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Singapore Changi Airport?

The number of operators available for flights from Seattle/Tacoma Intl Airport to Singapore Changi Airport is 12 as of December 2025.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Singapore Changi Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Singapore Changi Airport.

What documentation or ID do you need to fly to Singapore Changi Airport?

The travel and health documents you'll need for your trip to Singapore Changi Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Singapore Changi Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$265 Cheap Flights from Seattle to Singapore in 2025/26

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Cheap round-trip flights

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9:45 am - 5:45 pm

SEA

SIN

17h 00mnonstop

9:00 am - 8:45 am

SIN

SEA

14h 45mnonstop

$624Singapore Airlines

Fri, Mar 20 - Tue, Apr 7

12:10 am - 9:55 pm

SEA

SIN

29h 45m1 stop

11:10 pm - 1:55 pm

SIN

SEA

30h 45m1 stop

$655Asiana Airlines

Mon, Feb 23 - Sun, Mar 1

12:10 am - 9:55 pm

SEA

SIN

29h 45m1 stop

10:50 pm - 2:55 pm

SIN

SEA

31h 05m1 stop

$661Asiana Airlines

Sat, Feb 28 - Wed, May 13

9:45 am - 5:45 pm

SEA

SIN

17h 00mnonstop

9:00 am - 8:10 am

SIN

SEA

14h 10mnonstop

$667Singapore Airlines

Thu, Mar 12 - Fri, Mar 27

12:10 am - 9:55 pm

SEA

SIN

29h 45m1 stop

11:10 pm - 1:55 pm

SIN

SEA

30h 45m1 stop

$671Asiana Airlines

Wed, Feb 18 - Thu, Mar 5

8:45 am - 5:45 pm

SEA

SIN

17h 00mnonstop

9:00 am - 8:10 am

SIN

SEA

14h 10mnonstop

$679Singapore Airlines

Sun, Feb 15 - Thu, Mar 12

12:10 am - 9:55 pm

SEA

SIN

29h 45m1 stop

11:10 pm - 2:55 pm

SIN

SEA

30h 45m1 stop

$689Asiana Airlines

Sun, Feb 22 - Sun, Mar 15

9:45 am - 5:45 pm

SEA

SIN

17h 00mnonstop

8:45 pm - 8:59 am

SIN

SEA

27h 14m1 stop

$691Multiple Airlines

Fri, Mar 13 - Sun, Mar 29

12:10 am - 9:55 pm

SEA

SIN

29h 45m1 stop

11:10 pm - 1:55 pm

SIN

SEA

30h 45m1 stop

$700Asiana Airlines

Fri, Jan 23 - Thu, Feb 26

12:10 am - 9:55 pm

SEA

SIN

29h 45m1 stop

11:10 pm - 1:55 pm

SIN

SEA

30h 45m1 stop

$738Asiana Airlines

Fri, Feb 6 - Thu, Feb 26

Singapore Airlines flights from Seattle to Singapore

Our best Singapore Airlines deals on Seattle to Singapore flight tickets

Singapore Airlines

Mar 20

SEA9:45 amSeattle/Tacoma Intl

17h 00m

SIN5:45 pmSingapore Changi

Apr 7

SIN9:00 amSingapore Changi

14h 45m

SEA8:45 amSeattle/Tacoma Intl

$624

Find similar

Singapore Airlines

Mar 12

SEA9:45 amSeattle/Tacoma Intl

17h 00m

SIN5:45 pmSingapore Changi

Mar 27

SIN9:00 amSingapore Changi

14h 10m

SEA8:10 amSeattle/Tacoma Intl

$667

Find similar

Singapore Airlines

Feb 15

SEA8:45 amSeattle/Tacoma Intl

17h 00m

SIN5:45 pmSingapore Changi

Mar 12

SIN9:00 amSingapore Changi

14h 10m

SEA8:10 amSeattle/Tacoma Intl

$679

Find similar

Asiana Airlines flights from Seattle to Singapore

Our best Asiana Airlines deals on Seattle to Singapore flight tickets

Asiana Airlines

Feb 23

SEA12:10 amSeattle/Tacoma Intl

29h 45m

1 stop

SIN9:55 pmSingapore Changi

Mar 1

SIN11:10 pmSingapore Changi

30h 45m

1 stop

SEA1:55 pmSeattle/Tacoma Intl

$655

Find similar

Asiana Airlines

Feb 28

SEA12:10 amSeattle/Tacoma Intl

29h 45m

1 stop

SIN9:55 pmSingapore Changi

May 13

SIN10:50 pmSingapore Changi

31h 05m

1 stop

SEA2:55 pmSeattle/Tacoma Intl

$661

Find similar

Asiana Airlines

Feb 18

SEA12:10 amSeattle/Tacoma Intl

29h 45m

1 stop

SIN9:55 pmSingapore Changi

Mar 5

SIN11:10 pmSingapore Changi

30h 45m

1 stop

SEA1:55 pmSeattle/Tacoma Intl

$671

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Fri 3/20

9:45 am-5:45 pm

Nonstop17h 00m

Singapore Changi

Tue 4/7

9:00 am-8:45 am

Nonstop14h 45m

$624

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Mon 2/23

12:10 am-9:55 pm

1 stop29h 45m

Singapore Changi

Sun 3/1

11:10 pm-1:55 pm

1 stop30h 45m

$655

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sat 2/28

12:10 am-9:55 pm

1 stop29h 45m

Singapore Changi

Wed 5/13

10:50 pm-2:55 pm

1 stop31h 05m

$661

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Thu 3/12

9:45 am-5:45 pm

Nonstop17h 00m

Singapore Changi

Fri 3/27

9:00 am-8:10 am

Nonstop14h 10m

$667

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 2/18

12:10 am-9:55 pm

1 stop29h 45m

Singapore Changi

Thu 3/5

11:10 pm-1:55 pm

1 stop30h 45m

$671

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sun 2/15

8:45 am-5:45 pm

Nonstop17h 00m

Singapore Changi

Thu 3/12

9:00 am-8:10 am

Nonstop14h 10m

$679

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sun 2/22

12:10 am-9:55 pm

1 stop29h 45m

Singapore Changi

Sun 3/15

11:10 pm-2:55 pm

1 stop30h 45m

$689

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Fri 3/13

9:45 am-5:45 pm

Nonstop17h 00m

Singapore Changi

Sun 3/29

8:45 pm-8:59 am

1 stop27h 14m

$691

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Fri 1/23

12:10 am-9:55 pm

1 stop29h 45m

Singapore Changi

Thu 2/26

11:10 pm-1:55 pm

1 stop30h 45m

$700

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Fri 2/6

12:10 am-9:55 pm

1 stop29h 45m

Singapore Changi

Thu 2/26

11:10 pm-1:55 pm

1 stop30h 45m

$738

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How to get the cheapest flight ticket from Seattle to Singapore

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Layovers

Other information

What is the cheapest month to fly to Singapore?

The month of September is, on average, the cheapest month to fly to Singapore from Seattle, with most prices found around $725. If you aren’t able to travel to Singapore during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $741.

What is the cheapest day to depart on your flight to Singapore?

The cheapest day to depart from Seattle to Singapore is on a Tuesday when prices can be found for as low as $981. The most expensive day to fly to Singapore is Wednesday, with ticket prices averaging around $1,173.

What is the cheapest Seattle/Tacoma Intl to Singapore Changi flight route?

Fly from Seattle/Tacoma Intl to Singapore Changi for the best Seattle/Tacoma Intl - Singapore Changi flight prices

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

You are more likely to see cheaper flights to Singapore from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Singapore for around $902 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Singapore from Seattle for as low as $788 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Singapore Changi flights?

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to Singapore Changi flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Seattle to Singapore flight prices changed over time?

As of December 2025, prices for Seattle to Singapore flights are approximately 42% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Singapore

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Singapore according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Singapore (SEA to SIN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Singapore

Best Price Found	$311
Fastest flight time	16h 20m
Direct flights	Mon, Wed, Fri, Sat and Sun
Airports in Singapore	1 airport

The best one-way flight to Singapore from Seattle in the past 72 hours is $311. The best round-trip flight deal from Seattle to Singapore found on momondo in the last 72 hours is $773.

The fastest flight from Seattle to Singapore takes 16h 20m

Direct flights go from Seattle to Singapore on Monday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Singapore Airlines.

There is 1 airport in Singapore. From Seattle there are direct flights to Singapore Changi (SIN).

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How far is Seattle/Tacoma Intl to Singapore Changi by plane?
Singapore Changi is 8059.6 mi away from Seattle/Tacoma Intl. Typically, this will take 16h 20m by plane in normal conditions.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Singapore Changi Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Singapore Changi Airport are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Singapore Changi Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Singapore Changi Airport is 12 as of December 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Singapore Changi Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Singapore Changi Airport.
What documentation or ID do you need to fly to Singapore Changi Airport?
The travel and health documents you'll need for your trip to Singapore Changi Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Singapore Changi Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Singapore?
Based on momondo bookings for flights between Seattle and Singapore, the leading plane model is Airbus A350-900, making up 80.42% of the total bookings. Other popular models include Boeing 777-300 with 15.83%, Boeing 787-9 Dreamliner with 1.67%, and Boeing 787-10 Dreamliner with 0.83%.
What is the most popular airline from Seattle to Singapore?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to Singapore is Singapore Airlines (52% of total bookings). The next most popular airlines are United Airlines (12%), Air Canada (11%), and Korean Air (9%).

Best airlines flying from Seattle to Singapore

Compare and see reviews for airlines that fly from Seattle to Singapore with momondo

Airline	Rating	Free Cancellation	Price
Singapore Airlines	PriceFrom $595	Free Cancellation	Rating 8.1 1,424 reviews	Search Singapore Airlines flights
Philippine Airlines	PriceFrom $648	Free Cancellation	Rating 7.3 944 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $662	Free Cancellation	Rating 8.2 502 reviews	Search Asiana Airlines flights
Japan Airlines	PriceFrom $687	Free Cancellation	Rating 8.3 1,663 reviews	Search Japan Airlines flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 10,571 reviews	Search Air Canada flights
ANA	PriceFrom $718	Free Cancellation	Rating 8.4 1,050 reviews	Search ANA flights
United Airlines	PriceFrom $724	Free Cancellation	Rating 7.4 9,124 reviews	Search United Airlines flights
Korean Air	PriceFrom $736	Free Cancellation	Rating 8.4 1,184 reviews	Search Korean Air flights
Delta	PriceFrom $750	Free Cancellation	Rating 7.9 8,012 reviews	Search Delta flights
China Airlines	PriceFrom $933	Free Cancellation	Rating 8.2 797 reviews	Search China Airlines flights

Singapore Airlines Flights From Seattle to Singapore
Across 4 Singapore Airlines flights from Seattle to Singapore this week, the average price was $842, with the best Singapore Airlines deals starting from $595 round-trip. 1,424 users have rated Singapore Airlines on momondo, with an average score of 8.1/10.

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Singapore?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Singapore. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seattle to Singapore with flexible booking policies on momondo?

All flight searches from Seattle to Singapore on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Singapore?

Once all potential Seattle to Singapore flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Singapore right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Singapore, momondo offers a useful price alert feature which will track prices for flights to Singapore from Seattle and alert you when they change.

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Cheap flights from Seattle to Singapore from $265

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Singapore departing on 3/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Seattle to Singapore

What is the cheapest month to fly to Singapore?

What is the cheapest day to depart on your flight to Singapore?

The cheapest day to depart from Seattle to Singapore is on a Tuesday when prices can be found for as low as $981. The most expensive day to fly to Singapore is Wednesday, with ticket prices averaging around $1,173.

What is the cheapest Seattle/Tacoma Intl to Singapore Changi flight route?

Fly from Seattle/Tacoma Intl to Singapore Changi for the best Seattle/Tacoma Intl - Singapore Changi flight prices

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

What cabin class options are available on Seattle/Tacoma Intl to Singapore Changi flights?

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to Singapore Changi flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Seattle to Singapore flight prices changed over time?

As of December 2025, prices for Seattle to Singapore flights are approximately 42% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Singapore Changi?

Singapore Airlines, Philippine Airlines, and Asiana Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Singapore Changi

What airlines fly to Singapore?

How often are flights from Seattle to Singapore delayed?

Historically, on average around 25% of flights between Seattle and Singapore have experienced a delay on any given week. The average delay length over the past 12 months has been 123 minutes.

What is the most punctual flight time for Seattle to Singapore flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Friday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Seattle to Singapore flights?

According to our data, Singapore Airlines have had the least number of delays on this route over the last 12 months; with about 25% of their flights experiencing any sort of delay.

Which airport is the most popular layover for flights between Seattle and Singapore?

Incheon (ICN) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Seattle to Singapore?

Flights via Incheon (ICN) offer the lowest average round-trip price of $801.

Which layover airport has the shortest travel time from Seattle to Singapore?

Flights connecting via Manila (MNL) have the shortest average one-way travel time: 19h 15m.

Which layover airport has the shortest connection time from Seattle to Singapore?

Tokyo (NRT) has the shortest average layover time for this route: 2h 20m.

How many flights depart from Seattle to Singapore on average per week?

4 flights are operational weekly from Seattle to Singapore as of December 2025. The most popular departure day for this route is Tue, with 25% of flights per week taking off on this day.

When to book flights from Seattle to Singapore

Cheap Seattle to Singapore (SEA to SIN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Singapore

Best Price Found

Fastest flight time

Direct flights

Airports in Singapore

How far is Seattle/Tacoma Intl to Singapore Changi by plane?

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Singapore Changi Airport?

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Singapore Changi Airport?

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Singapore Changi Airport?

What documentation or ID do you need to fly to Singapore Changi Airport?

What is the most popular plane model from Seattle to Singapore?

What is the most popular airline from Seattle to Singapore?

Best airlines flying from Seattle to Singapore

Compare and see reviews for airlines that fly from Seattle to Singapore with momondo

Singapore Airlines Flights From Seattle to Singapore

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Singapore?

Can I find flights from Seattle to Singapore with flexible booking policies on momondo?

How can momondo help me find flights from Seattle to Singapore?

I’m not ready to book a flight from Seattle to Singapore right now. Can momondo alert me if prices change?

An easier way to manage your Singapore trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.