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Cheap flights from Singapore to Seattle from S$ 598

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 12-6. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — SEA
19 Apr — 26 Apr1
1 adult

Cheapflights Tip: The best prices from Singapore Changi to Seattle/Tacoma Intl are usually found in February or March, booked 47 days in advance, depart on a Wednesday or Monday and return on a Monday

Cheap 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 14 April 2025.

Round-trip from

S$ 911

One-way from

S$ 598

Popular in

August

Cheapest in

February

Average price

S$ 1,234

Good round-trip deal

S$ 1,594 or less
Asiana Airlines
  • Asiana Airlines
  • 14-5-22-7
  • 2 total stops
  • 68h 40m total
  • Singapore to Seattle
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United Airlines
  • United Airlines
  • 12-6
  • 1 total stop
  • 19h 37m total
  • Singapore to Seattle
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (S$ 134 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (S$ 29 potential savings vs. average return price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Singapore Changi to Seattle/Tacoma Intl.
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Find flight deals from Singapore to Seattle

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 14 April 2025.

Wed 14-522:50SIN - SEA
1 stop28h 40mAsiana Airlines
Tue 22-714:30SEA - SIN
1 stop40h 00mAsiana Airlines
Deal found 13-4S$ 911
Tue 10-620:40SIN - SEA
1 stop19h 19mUnited Airlines
Mon 11-817:10SEA - SIN
1 stop22h 05mUnited Airlines
Deal found 13-4S$ 955
Sun 11-502:00SIN - SEA
1 stop32h 30mChina Airlines
Thu 15-501:10SEA - SIN
1 stop20h 25mChina Airlines
Deal found 13-4S$ 969
Thu 22-514:00SIN - SEA
1 stop17h 10mSTARLUX Airlines
Wed 13-801:15SEA - SIN
1 stop20h 25mSTARLUX Airlines
Deal found 13-4S$ 1,038
Thu 15-513:10SIN - SEA
1 stop21h 20mEVA Air
Wed 23-702:10SEA - SIN
1 stop20h 40mEVA Air
Deal found 13-4S$ 1,046
Sun 15-609:10SIN - SEA
1 stop18h 48mAir Canada
Mon 11-805:35SEA - SIN
2 stops32h 25mAir Canada
Deal found 13-4S$ 1,047
Sun 1-609:10SIN - SEA
1 stop18h 48mMultiple Airlines
Thu 31-705:35SEA - SIN
2 stops28h 15mMultiple Airlines
Deal found 13-4S$ 1,062
Tue 13-501:10SIN - SEA
1 stop27h 25mDelta
Tue 22-712:55SEA - SIN
1 stop25h 05mDelta
Deal found 13-4S$ 1,156
Tue 10-608:05SIN - SEA
2 stops21h 48mJapan Airlines
Tue 24-608:10SEA - SIN
2 stops25h 10mJapan Airlines
Deal found 13-4S$ 1,322
Tue 29-422:10SIN - SEA
1 stop31h 15mANA
Mon 12-513:45SEA - SIN
2 stops25h 55mANA
Deal found 12-4S$ 1,367
Tue 1-701:10SIN - SEA
1 stop24h 40mKorean Air
Mon 11-813:20SEA - SIN
1 stop19h 20mKorean Air
Deal found 13-4S$ 1,534
Wed 14-520:45SIN - SEA
1 stop27h 11mSingapore Airlines
Tue 22-710:15SEA - SIN
Nonstop16h 20mSingapore Airlines
Deal found 13-4S$ 1,611

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 14 April 2025.
Use the filters below to find and compare flights from Singapore to Seattle that are best for you.

Fly from

Singapore

Fly to

Seattle

Route

Depart

Return

Price

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 14-5

22:50-12:30

1 stop28h 40m

Seattle/Tacoma Intl

Tue 22-7

14:30-21:30

1 stop40h 00m

S$ 911

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 10-6

20:40-00:59

1 stop19h 19m

Seattle/Tacoma Intl

Mon 11-8

17:10-06:15

1 stop22h 05m

S$ 955

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 11-5

02:00-19:30

1 stop32h 30m

Seattle/Tacoma Intl

Thu 15-5

01:10-12:35

1 stop20h 25m

S$ 969

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 22-5

14:00-16:10

1 stop17h 10m

Seattle/Tacoma Intl

Wed 13-8

01:15-12:40

1 stop20h 25m

S$ 1,038

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 15-5

13:10-19:30

1 stop21h 20m

Seattle/Tacoma Intl

Wed 23-7

02:10-13:50

1 stop20h 40m

S$ 1,046

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 15-6

09:10-12:58

1 stop18h 48m

Seattle/Tacoma Intl

Mon 11-8

05:35-05:00

2 stops32h 25m

S$ 1,047

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 1-6

09:10-12:58

1 stop18h 48m

Seattle/Tacoma Intl

Thu 31-7

05:35-00:50

2 stops28h 15m

S$ 1,062

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 13-5

01:10-13:35

1 stop27h 25m

Seattle/Tacoma Intl

Tue 22-7

12:55-05:00

1 stop25h 05m

S$ 1,156

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 10-6

08:05-14:53

2 stops21h 48m

Seattle/Tacoma Intl

Tue 24-6

08:10-00:20

2 stops25h 10m

S$ 1,322

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 29-4

22:10-14:25

1 stop31h 15m

Seattle/Tacoma Intl

Mon 12-5

13:45-06:40

2 stops25h 55m

S$ 1,367

Flights are sorted by cheapest return flights first.

Deals found on 13-4

Showing 1-10 of 25 results
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2
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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?

Use this chart to determine the optimal time to book a return flight from Singapore to Seattle. Price data was last updated on 11 April 2025.

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 47 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 14 April 2025.

One of the essential ways to save on airfare from Singapore to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 33% on airfare.

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

Use this chart to determine the cheapest time to fly return from Singapore to Seattle. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Singapore to Seattle flight should consider departing on Friday at midday when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

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 14 April 2025.
STARLUX Airlines
9.1
Wonderful
Check prices

Boarding

9.0

Food

8.9

Overall

9.1

Entertainment

9.0

Comfort

9.0

Crew

9.3

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
STARLUX Airlines
9.1
Wonderful
STARLUX Airlines
9.1
Wonderful
Check prices

Boarding

9.0

Food

8.9

Overall

9.1

Entertainment

9.0

Comfort

9.0

Crew

9.3

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
EVA Air
8.4
Very Good
1,176 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Boarding

9.0

Food

8.9

Overall

9.1

Entertainment

9.0

Comfort

9.0

Crew

9.3

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Korean Air
8.4
Very Good
1,063 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Boarding

9.0

Food

8.9

Overall

9.1

Entertainment

9.0

Comfort

9.0

Crew

9.3

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Japan Airlines
8.3
Very Good
1,440 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Boarding

9.0

Food

8.9

Overall

9.1

Entertainment

9.0

Comfort

9.0

Crew

9.3

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
ANA
8.3
Very Good
840 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Boarding

9.0

Food

8.9

Overall

9.1

Entertainment

9.0

Comfort

9.0

Crew

9.3

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

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 192 times in the past calendar month.

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

    Flying on Asiana Airlines is currently your cheapest option to Seattle, with prices starting at S$ 911. Additional round-trip tickets that might be worth considering are offered by United Airlines and China Airlines, with the lowest prices starting at S$ 955 and S$ 969, respectively. You may be able to fly from Singapore to Seattle for 27% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at S$ 598. Air Canada flights start at S$ 639 while deals on China Airlines start at S$ 648 one-way.

  • What are the cheapest flights from Singapore to Seattle?

    On average you can expect to pay S$ 4,360 for a flight from Singapore to Seattle. The cheapest flight overall is S$ 1,109 while the most popular route, (Singapore Changi - Seattle/Tacoma Intl) is currently priced at S$ 911.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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 14 April 2025.
Singapore Airlines flights from Singapore Changi to Seattle/Tacoma Intl
United Airlines flights from Singapore Changi to Seattle/Tacoma Intl
Japan Airlines flights from Singapore Changi to Seattle/Tacoma Intl

Top 8 airlines flying from Singapore to Seattle

Discover the top 8 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 14 April 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestS$ 932AverageS$ 1,123FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
ANACheapestS$ 946AverageS$ 1,298FlexibilityNo cancel feeOn-time80%
Search ANA flights
STARLUX AirlinesCheapestS$ 981AverageS$ 1,164FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
China AirlinesCheapestS$ 1,007AverageS$ 1,093FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
EVA AirCheapestS$ 1,052AverageS$ 1,365FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Korean AirCheapestS$ 1,117AverageS$ 1,316FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Singapore AirlinesCheapestS$ 1,171AverageS$ 1,620FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Japan AirlinesCheapestS$ 1,251AverageS$ 1,508FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights

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

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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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