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Cheap flights from Singapore to Seattle from S$ 615

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 21-6. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — SEA
8 Jul — 15 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Singapore to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Singapore to Seattle
Explore the most affordable flight options available from Singapore to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 June 2026.

Wed 15-720:35
SIN
-
SEA
1 stop19h 54m
United Airlines
Thu 13-810:55
SEA
-
SIN
1 stop28h 20m
United Airlines
Deal found 8-6S$ 1,043
Fri 6-1108:50
SIN
-
SEA
1 stop25h 32m
Air Canada
Sun 15-1115:15
SEA
-
SIN
1 stop23h 45m
Air Canada
Deal found 8-6S$ 1,047
Sun 6-908:45
SIN
-
SEA
1 stop22h 29m
United Airlines
Mon 14-919:35
SEA
-
SIN
1 stop32h 00m
United Airlines
Deal found 4-6S$ 1,048
Thu 22-1007:00
SIN
-
SEA
1 stop22h 22m
Air Canada
Mon 26-1008:40
SEA
-
SIN
2 stops29h 15m
Air Canada
Deal found 6-6S$ 1,052
Thu 10-907:00
SIN
-
SEA
1 stop30h 42m
Air Canada
Wed 16-919:20
SEA
-
SIN
2 stops24h 55m
Air Canada
Deal found 4-6S$ 1,054
Tue 8-920:50
SIN
-
SEA
2 stops28h 02m
Air Canada
Sat 19-905:40
SEA
-
SIN
2 stops38h 35m
Air Canada
Deal found 4-6S$ 1,055
Sat 26-1208:50
SIN
-
SEA
1 stop29h 07m
Air Canada
Sat 9-108:40
SEA
-
SIN
2 stops28h 15m
Air Canada
Deal found 7-6S$ 1,056
Tue 13-1020:50
SIN
-
SEA
2 stops36h 42m
Air Canada
Sat 31-1015:15
SEA
-
SIN
2 stops46h 40m
Air Canada
Deal found 7-6S$ 1,059
Sun 5-706:15
SIN
-
SEA
2 stops27h 17m
Air Canada
Sun 12-710:45
SEA
-
SIN
1 stop27h 30m
Air Canada
Deal found 7-6S$ 1,063
Tue 8-920:50
SIN
-
SEA
2 stops28h 02m
Air Canada
Tue 15-905:40
SEA
-
SIN
2 stops28h 05m
Air Canada
Deal found 4-6S$ 1,069
Thu 10-907:00
SIN
-
SEA
1 stop26h 32m
Multiple Airlines
Thu 17-915:00
SEA
-
SIN
2 stops29h 45m
Multiple Airlines
Deal found 4-6S$ 1,073

Find flight deals from Singapore to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Singapore (SIN) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 8 June 2026.

Round-trip from

S$ 1,048

One-way from

S$ 615

Popular in

May

Cheapest in

October

Average price

S$ 1,086
United Airlines
  • United Airlines
  • 6-9-15-9
  • 2 total stops
  • 48h 28m total
  • Singapore to Seattle
Search Deals
Air Canada
  • Air Canada
  • 21-6
  • 1 total stop
  • 26h 32m total
  • Singapore to Seattle
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (S$ 82 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (S$ 25 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Singapore to Seattle 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 200,618 searches. Data last updated 8 June 2026.
Use the filters below to find and compare flights from Singapore to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 22-9

08:45-11:44

3 stops41h 59m

Seattle/Tacoma Intl

Thu 24-9

08:46-06:15

1 stop30h 29m

S$ 1,168

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 22-10

14:00-16:10

1 stop17h 10m

Seattle/Tacoma Intl

Sun 25-10

00:45-13:25

1 stop21h 40m

S$ 1,186

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 28-8

06:15-17:42

2 stops26h 27m

Seattle/Tacoma Intl

Sun 30-8

19:35-06:15

1 stop19h 40m

S$ 1,206

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 15-7

08:45-01:29

1 stop31h 44m

Seattle/Tacoma Intl

Thu 16-7

05:15-18:35

1 stop22h 20m

S$ 1,207
Fastest return journey

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 18-7

14:10-16:35

1 stop17h 25m

Seattle/Tacoma Intl

Tue 21-7

01:15-12:40

1 stop20h 25m

S$ 1,217

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 1-10

20:35-21:59

2 stops40h 24m

Seattle/Tacoma Intl

Sat 3-10

13:22-18:35

1 stop38h 13m

S$ 1,229

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 27-8

14:00-16:35

1 stop17h 35m

Seattle/Tacoma Intl

Wed 4-11

23:45-13:25

1 stop21h 40m

S$ 1,270

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 27-8

13:10-19:10

1 stop21h 00m

Seattle/Tacoma Intl

Tue 3-11

00:10-14:30

1 stop22h 20m

S$ 1,295

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 9-8

08:45-17:59

2 stops48h 14m

Seattle/Tacoma Intl

Mon 24-8

13:22-18:35

1 stop38h 13m

S$ 1,373

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 2-8

14:00-16:35

1 stop17h 35m

Seattle/Tacoma Intl

Fri 28-8

01:15-12:40

1 stop20h 25m

S$ 1,448

Flights are sorted by cheapest return flights first.

Deals found on 4-6

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Singapore to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Singapore with our price prediction graph.
Estimated return 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 Singapore to Seattle

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

The price you pay for your flight from Singapore to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 67 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, October is the cheapest month in which you can book a flight from Singapore to Seattle (average of S$ 1,007). Flying from Singapore to Seattle in May is currently the most expensive (average of S$ 1,336). 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 SIN to SEA?

Find hourly flight availability from Singapore to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 June 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Singapore to Seattle as you normally would.

How much does it cost for a return flight from Singapore to Seattle?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 8 June 2026.
Get a feel of what it's like to fly with STARLUX Airlines,EVA Air, andChina Airlines from Singapore to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Overall

8.9

Crew

9.1

Food

8.6

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat
STARLUX Airlines
8.9
Very Good
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Overall

8.9

Crew

9.1

Food

8.6

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat
EVA Air
8.5
Very Good
1,466 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Overall

8.9

Crew

9.1

Food

8.6

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat
China Airlines
8.3
Very Good
828 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Overall

8.9

Crew

9.1

Food

8.6

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat
Singapore Airlines
8.2
Very Good
1,534 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Overall

8.9

Crew

9.1

Food

8.6

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat
United Airlines
7.4
Good
9,780 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Overall

8.9

Crew

9.1

Food

8.6

Reviews

1 / 13
10.0
Excellent

Anonymous,Jun 2026

LAX - TPE

New flight, very nice inflight service, very nice seat and comfortable seat

Related info for your journey

Find useful and relevant information for your journey from Singapore to Seattle. 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 Singapore to Seattle flight route?

    Flights from Singapore Changi to Seattle/Tacoma Intl have been viewed 67 times in the past calendar month.

  • How long is the flight from Singapore to Seattle?

    There are many flights that can get you from Singapore to Seattle in 17h 10m. Fly via United Airlines or STARLUX Airlines to get the fastest option. There are 12970 km between Singapore and Seattle. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Flying on China Airlines is currently your cheapest option to Seattle, with prices starting at S$ 538. Additional round-trip tickets that might be worth considering are offered by United Airlines and Singapore Airlines, with the lowest prices starting at S$ 835 and S$ 935, respectively. You may be able to fly from Singapore to Seattle for 52% less than the average price by searching for these airlines.

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

    Yes. In addition to deals on Singapore to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Singapore to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Singapore to Seattle.

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

    Yes. Cheapflights offers flight deals from Singapore to Seattle 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 Singapore to Seattle?

    Currently, October is the cheapest month in which you can book a flight from Singapore to Seattle (average of S$ 1,007). Flying from Singapore to Seattle in May is currently the most expensive (average of S$ 1,336). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth

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Fly from Singapore to Seattle on these airlines

Choose from the following airlines for your flight from Singapore to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 8 June 2026.
Singapore Airlines flights from Singapore Changi to Seattle/Tacoma Intl
United Airlines flights from Singapore Changi to Seattle/Tacoma Intl

Top 5 airlines flying from Singapore to Seattle

Discover the top 5 airlines that operate flights from Singapore to Seattle. 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 200,618 searches. Data last updated 8 June 2026.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapestS$ 538AverageS$ 1,116FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
United AirlinesCheapestS$ 835AverageS$ 1,080FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Singapore AirlinesCheapestS$ 935AverageS$ 1,360FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
STARLUX AirlinesCheapestS$ 1,026AverageS$ 1,125FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapestS$ 1,070AverageS$ 1,123FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Singapore to Seattle?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from Singapore today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Singapore to Seattle for you. Better yet — we are completely free to use.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Singapore to Seattle flexibly with Cheapflights today.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Singapore today and book when prices fit your budget.

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