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Cheap flights from Seattle to Singapore from C$ 558

SEA — SIN
10 Oct — 17 Oct1
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

Wed 23/910:50 a.m. -
1 stop22h 40m
Wed 14/106:15 a.m. -
2 stops23h 07m
Deal found 6/9C$ 1,066
Wed 23/95:20 p.m. -
1 stop21h 55m
Wed 14/108:45 a.m. -
1 stop20h 32m
Deal found 6/9C$ 1,118
Mon 7/97:11 a.m. -
1 stop32h 04m
Tue 15/98:45 a.m. -
2 stops27h 46m
Deal found 6/9C$ 1,121
Sun 18/101:19 p.m. -
1 stop25h 56m
Wed 11/1110:10 a.m. -
1 stop22h 17m
Deal found 6/9C$ 1,133
Mon 2/117:35 p.m. -
1 stop20h 25m
Mon 9/116:35 a.m. -
2 stops24h 04m
Deal found 7/9C$ 1,136
Wed 14/1012:50 p.m. -
1 stop25h 10m
Sun 8/1110:30 p.m. -
1 stop26h 35m
Deal found 5/9C$ 1,137
Mon 19/106:05 p.m. -
2 stops33h 30m
Wed 11/1110:10 a.m. -
1 stop22h 17m
Deal found 6/9C$ 1,139
Sat 17/107:25 p.m. -
1 stop32h 10m
Tue 10/1110:10 a.m. -
1 stop24h 16m
Deal found 6/9C$ 1,140
Sat 24/107:25 p.m. -
1 stop33h 50m
Tue 10/1110:20 p.m. -
1 stop27h 20m
Deal found 10/9C$ 1,142
Tue 13/107:16 a.m. -
2 stops30h 44m
Tue 20/1010:00 p.m. -
1 stop27h 40m
Deal found 10/9C$ 1,146
Sun 25/1012:28 p.m. -
2 stops27h 27m
Sun 1/1110:45 a.m. -
1 stop18h 35m
Deal found 7/9C$ 1,147
Sun 4/106:05 p.m. -
2 stops33h 30m
Sun 11/1011:05 a.m. -
1 stop18h 20m
Deal found 6/9C$ 1,148

Find flight deals from Seattle to Singapore

Round-trip from

C$ 1,066

One-way from

C$ 558

Popular in

December

Cheapest in

November

Average price

C$ 1,136

Good round-trip deal

C$ 1,445 or less

Good one-way deal

C$ 680 or less
Air Canada
  • Air Canada
  • 23/9-14/10
  • 3 total stops
  • 45h 47m total
  • Seattle to Singapore
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United Airlines
  • United Airlines
  • 20/9-31/12
  • 2 total stops
  • 35h 05m total
  • Seattle to Singapore
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 264 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease (C$ 109 potential savings vs. average RT price).
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Average for round-trip flights in September 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

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Tue 22/9

3:30 p.m.-6:15 a.m.

1 stop23h 45m

Singapore Changi

Wed 31/12

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

Nonstop0h 00m

C$ 558

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Thu 22/10

6:43 p.m.-6:35 p.m.

2 stops32h 52m

Singapore Changi

Wed 31/12

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

Nonstop0h 00m

C$ 558

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Wed 16/9

5:00 a.m.-6:15 a.m.

2 stops34h 15m

Singapore Changi

Wed 31/12

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

Nonstop0h 00m

C$ 558

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Sat 30/1

12:40 p.m.-8:25 p.m.

1 stop39h 45m

Singapore Changi

Wed 31/12

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

Nonstop0h 00m

C$ 563
Quickest round-trip

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Mon 5/10

4:30 p.m.-6:40 a.m.

1 stop23h 10m

Singapore Changi

Wed 31/12

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

Nonstop0h 00m

C$ 565

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Sat 7/11

12:20 p.m.-8:15 p.m.

3 stops39h 55m

Singapore Changi

Wed 31/12

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

Nonstop0h 00m

C$ 567

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Sat 14/11

12:20 p.m.-8:15 p.m.

2 stops39h 55m

Singapore Changi

Wed 31/12

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

Nonstop0h 00m

C$ 567

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Thu 26/11

4:39 p.m.-8:15 p.m.

2 stops35h 36m

Singapore Changi

Wed 31/12

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

Nonstop0h 00m

C$ 567

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Wed 25/11

12:20 p.m.-8:15 p.m.

3 stops39h 55m

Singapore Changi

Wed 31/12

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

Nonstop0h 00m

C$ 567

SeattleSingapore

SEA Seattle/Tacoma Intl - SIN Singapore Changi

SEASIN

Seattle/Tacoma Intl

Fri 23/10

6:05 p.m.-8:15 p.m.

2 stops35h 10m

Singapore Changi

Wed 31/12

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

Nonstop0h 00m

C$ 567

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 19 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 62 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$ 971). Flying from Seattle to Singapore in December is currently the most expensive (average of C$ 2,072). 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$ 1,000 and C$ 1,333 in September.
The cheapest round-trip price found within the last 5 days was C$ 1,066 on Air Canada (23 Sep-14 Oct).

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
1,599 reviews
Check prices

Boarding

8.3

Food

7.8

Entertainment

8.1

Overall

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.
Singapore Airlines
8.2
Very good
1,599 reviews
Singapore Airlines
8.2
Very good
1,599 reviews
Check prices

Boarding

8.3

Food

7.8

Entertainment

8.1

Overall

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Ketan,Nov 2024

SEA - SIN

Sin to amd was not good flight. Food was bad. It was like few days old.

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 448 times in the past calendar month.

  • How long is the flight from Seattle to Singapore?

    United Airlines can get you from Seattle to Singapore in just under 21h 55m. Your travel time can differ by up to . The distance between Seattle and Singapore is about 12970 km.

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

    Singapore Airlines, at C$ 569, was found to be the cheapest airline from Seattle to Singapore.. Singapore Airlines is priced at 53% 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$ 971). Flying from Seattle to Singapore in December is currently the most expensive (average of C$ 2,072). 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$ 569AverageC$ 946FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Fly with Cheapflights

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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.

Can Cheapflights notify me if prices for flights from Seattle to Singapore become cheaper?

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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