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Cheap flights from Seattle to Singapore from C$ 473

SEA — SIN
25 Nov — 2 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Singapore

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Singapore

Mon 2/117:00 a.m. -
1 stop21h 15m
Mon 9/1110:20 p.m. -
1 stop18h 39m
Deal found 22/10C$ 1,109
Sun 8/113:40 p.m. -
1 stop23h 15m
Sun 22/1110:20 p.m. -
1 stop40h 58m
Deal found 23/10C$ 1,111
Wed 4/1111:00 a.m. -
1 stop26h 00m
Tue 10/111:40 a.m. -
1 stop23h 25m
Deal found 22/10C$ 1,115
Sat 24/107:25 p.m. -
1 stop33h 50m
Tue 10/1110:20 p.m. -
1 stop27h 20m
Deal found 22/10C$ 1,116
Sat 24/103:55 p.m. -
2 stops37h 20m
Sat 31/1010:45 a.m. -
1 stop18h 35m
Deal found 22/10C$ 1,123
Sun 8/113:40 p.m. -
1 stop23h 15m
Sun 11/411:05 a.m. -
1 stop18h 20m
Deal found 22/10C$ 1,125
Mon 16/116:00 a.m. -
2 stops25h 40m
Thu 19/1110:10 a.m. -
1 stop29h 08m
Deal found 22/10C$ 1,126
Wed 4/116:00 a.m. -
2 stops32h 55m
Mon 21/1210:10 a.m. -
2 stops27h 49m
Deal found 26/10C$ 1,129
Mon 26/1012:20 p.m. -
2 stops40h 55m
Sun 1/1110:45 a.m. -
2 stops27h 05m
Deal found 24/10C$ 1,130
Wed 4/116:00 a.m. -
2 stops26h 45m
Tue 10/1110:10 a.m. -
2 stops24h 59m
Deal found 22/10C$ 1,132

Find flight deals from Seattle to Singapore

Round-trip from

C$ 1,097

One-way from

C$ 473

Popular in

December

Cheapest in

November

Average price

C$ 1,074

Good round-trip deal

C$ 1,294 or less

Good one-way deal

C$ 589 or less
Korean Air
  • Korean Air
  • 16/3-25/3
  • 3 total stops
  • 56h 50m total
  • Seattle to Singapore
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Singapore Airlines
  • Singapore Airlines
  • 24/1-31/12
  • Nonstop
  • 17h 05m total
  • Seattle to Singapore
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Highest demand for flights based on searches. 17% potential increase in price (C$ 370 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease (C$ 130 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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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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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Mon 25/1

11:00 a.m.-12:15 a.m.

1 stop21h 15m

Singapore Changi

Wed 31/12

12:00 a.m.-8:30 a.m.

Nonstop0h 00m

C$ 517

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Wed 10/2

7:15 a.m.-5:00 a.m.

2 stops29h 45m

Singapore Changi

Wed 31/12

12:00 a.m.-8:30 a.m.

Nonstop0h 00m

C$ 517

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Tue 9/2

11:00 a.m.-12:15 a.m.

1 stop21h 15m

Singapore Changi

Wed 31/12

12:00 a.m.-8:30 a.m.

Nonstop0h 00m

C$ 517

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Sun 24/1

5:28 p.m.-8:15 p.m.

2 stops34h 47m

Singapore Changi

Wed 31/12

12:00 a.m.-8:30 a.m.

Nonstop0h 00m

C$ 525

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Thu 11/2

12:00 p.m.-8:25 p.m.

2 stops40h 25m

Singapore Changi

Wed 31/12

12:00 a.m.-8:30 a.m.

Nonstop0h 00m

C$ 527

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Sun 18/4

3:30 p.m.-6:45 a.m.

1 stop24h 15m

Singapore Changi

Wed 31/12

12:00 a.m.-8:30 a.m.

Nonstop0h 00m

C$ 529

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Mon 23/11

12:30 p.m.-5:00 a.m.

1 stop24h 30m

Singapore Changi

Wed 31/12

12:00 a.m.-8:30 a.m.

Nonstop0h 00m

C$ 534

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Sat 30/1

11:00 a.m.-8:25 p.m.

1 stop41h 25m

Singapore Changi

Wed 31/12

12:00 a.m.-8:30 a.m.

Nonstop0h 00m

C$ 535

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Sat 13/2

11:00 a.m.-5:00 a.m.

1 stop26h 00m

Singapore Changi

Wed 31/12

12:00 a.m.-8:30 a.m.

Nonstop0h 00m

C$ 535

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Sat 6/2

12:10 a.m.-8:25 p.m.

1 stop28h 15m

Singapore Changi

Wed 31/12

12:00 a.m.-8:30 a.m.

Nonstop0h 00m

C$ 535

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/10

Showing 1-10 of 23 resultsSorted by cheapest first
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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

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?

To ensure you get the cheapest price possible for a flight from Seattle to Singapore, you should look to book at least 60 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Seattle to Singapore (average of C$ 968). Flying from Seattle to Singapore in December is currently the most expensive (average of C$ 2,276). 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?

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.

How much does it cost to fly round-trip from Seattle to Singapore?

Airfare is typical for this route at the moment.

Seattle to Singapore flights typically cost between C$ 737 and C$ 1,199 in March.
The cheapest round-trip price found within the last 5 days was C$ 1,097 on Korean Air (17 Mar-28 Mar).

Reviews of airlines servicing Singapore

Check out reviews from past customers who have flown with Singapore Airlines 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.
Singapore Airlines
8.2
Very good
1,627 reviews
Check prices

Boarding

8.3

Crew

8.6

Entertainment

8.1

Food

7.8

Overall

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Judith,Sep 2026

SFO - SIN

Great except for giving me a dinner with rice in it that I didn’t order.
Singapore Airlines
8.2
Very good
1,627 reviews
Singapore Airlines
8.2
Very good
1,627 reviews
Check prices

Boarding

8.3

Crew

8.6

Entertainment

8.1

Food

7.8

Overall

8.2

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Judith,Sep 2026

SFO - SIN

Great except for giving me a dinner with rice in it that I didn’t order.

Related info for your journey

  • How popular is this Seattle to Singapore flight route?

    Flights from Seattle/Tacoma Intl to Singapore Changi have been viewed 418 times in the past calendar month.

  • How long is the flight from Seattle to Singapore?

    Korean Air and United Airlines can get you from Seattle to Singapore in just under 23h 10m. Your travel time can differ by up to 2h 50m. The distance between Seattle and Singapore is about 12970 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Singapore Airlines, at C$ 578, was found to be the cheapest airline from Seattle to Singapore.. Singapore Airlines is priced at 54% lower than the current average price of a flight leaving 3 months from now.

  • 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, November is the cheapest month in which you can book a flight from Seattle to Singapore (average of C$ 968). Flying from Seattle to Singapore in December is currently the most expensive (average of C$ 2,276). 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

Top airline flying from Seattle to Singapore

AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapestC$ 578AverageC$ 961FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

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Cheapflights helps you search for flights from Seattle to Singapore via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Singapore?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Singapore from Seattle.

Can Cheapflights find flights from Seattle to Singapore with no change fees?

Yes! Cheapflights helps users easily find flights from Seattle to Singapore with no change fees.

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Yes! Start tracking prices for Seattle to Singapore flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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