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Cheap flights from Singapore to Seattle from S$ 664

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 14-7. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — SEA
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from Singapore Changi to Seattle/Tacoma Intl are usually found in February or March, booked 41 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 13 June 2025.

Round-trip from

S$ 978

One-way from

S$ 664

Popular in

August

Cheapest in

February

Average price

S$ 1,336

Good round-trip deal

S$ 9,218 or less
Japan Airlines
  • Japan Airlines
  • 1-9-30-9
  • 3 total stops
  • 43h 15m total
  • Singapore to Seattle
ANA
  • ANA
  • 14-7
  • 1 total stop
  • 31h 15m total
  • Singapore to Seattle
Highest demand for flights based on searches. 9% potential increase in price (S$ 158 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (S$ 34 potential savings vs. average return price).
Average for round-trip flights in June 2025
Price to beat on a round-trip flight from Singapore Changi to Seattle/Tacoma Intl.

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 13 June 2025.

Mon 1-908:05SIN - SEA
1 stop17h 20mJapan Airlines
Tue 30-907:25SEA - SIN
2 stops25h 55mJapan Airlines
Deal found 11-6S$ 978
Sat 12-722:50SIN - SEA
1 stop28h 55mAsiana Airlines
Tue 22-714:30SEA - SIN
1 stop40h 00mAsiana Airlines
Deal found 11-6S$ 1,025
Mon 16-614:00SIN - SEA
1 stop17h 10mSTARLUX Airlines
Sun 10-801:15SEA - SIN
1 stop20h 25mSTARLUX Airlines
Deal found 11-6S$ 1,030
Tue 24-613:10SIN - SEA
1 stop21h 20mEVA Air
Sat 5-701:10SEA - SIN
1 stop21h 40mEVA Air
Deal found 12-6S$ 1,048
Thu 26-609:10SIN - SEA
1 stop39h 11mAir Canada
Thu 10-705:30SEA - SIN
1 stop34h 35mAir Canada
Deal found 12-6S$ 1,051
Tue 24-613:45SIN - SEA
1 stop20h 45mChina Airlines
Sat 5-701:40SEA - SIN
1 stop31h 55mChina Airlines
Deal found 12-6S$ 1,059
Thu 20-1100:30SIN - SEA
1 stop35h 05mPhilippine Airlines
Sun 30-1123:55SEA - SIN
1 stop21h 45mPhilippine Airlines
Deal found 12-6S$ 1,064
Thu 11-908:45SIN - SEA
1 stop19h 43mUnited Airlines
Tue 23-917:35SEA - SIN
1 stop21h 40mUnited Airlines
Deal found 11-6S$ 1,068
Mon 1-922:30SIN - SEA
1 stop27h 10mKorean Air
Tue 30-912:50SEA - SIN
1 stop19h 50mKorean Air
Deal found 11-6S$ 1,073
Sun 10-809:10SIN - SEA
1 stop28h 06mMultiple Airlines
Fri 15-819:15SEA - SIN
2 stops38h 35mMultiple Airlines
Deal found 11-6S$ 1,128
Mon 16-622:10SIN - SEA
2 stops33h 37mANA
Mon 11-807:00SEA - SIN
2 stops26h 45mANA
Deal found 12-6S$ 1,169
Fri 21-1109:00SIN - SEA
Nonstop14h 10mSingapore Airlines
Sun 30-1108:45SEA - SIN
Nonstop17h 00mSingapore Airlines
Deal found 11-6S$ 1,205

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 13 June 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

Mon 1-9

08:05-10:25

1 stop17h 20m

Seattle/Tacoma Intl

Tue 30-9

07:25-00:20

2 stops25h 55m

S$ 978

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 12-7

22:50-12:45

1 stop28h 55m

Seattle/Tacoma Intl

Tue 22-7

14:30-21:30

1 stop40h 00m

S$ 1,025

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 16-6

14:00-16:10

1 stop17h 10m

Seattle/Tacoma Intl

Sun 10-8

01:15-12:40

1 stop20h 25m

S$ 1,030

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 24-6

13:10-19:30

1 stop21h 20m

Seattle/Tacoma Intl

Sat 5-7

01:10-13:50

1 stop21h 40m

S$ 1,048

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 26-6

09:10-09:21

1 stop39h 11m

Seattle/Tacoma Intl

Thu 10-7

05:30-07:05

1 stop34h 35m

S$ 1,051

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 24-6

13:45-19:30

1 stop20h 45m

Seattle/Tacoma Intl

Sat 5-7

01:40-00:35

1 stop31h 55m

S$ 1,059

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 11-9

08:45-13:28

1 stop19h 43m

Seattle/Tacoma Intl

Tue 23-9

17:35-06:15

1 stop21h 40m

S$ 1,068

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 1-9

22:30-10:40

1 stop27h 10m

Seattle/Tacoma Intl

Tue 30-9

12:50-23:40

1 stop19h 50m

S$ 1,073

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 10-8

09:10-22:16

1 stop28h 06m

Seattle/Tacoma Intl

Fri 15-8

19:15-00:50

2 stops38h 35m

S$ 1,128

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 16-6

22:10-16:47

2 stops33h 37m

Seattle/Tacoma Intl

Mon 11-8

07:00-00:45

2 stops26h 45m

S$ 1,169

Flights are sorted by cheapest return flights first.

Deals found on 12-6

Showing 1-10 of 27 results
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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 9 June 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 41 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 13 June 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 13 June 2025.
Get a feel of what it's like to fly with STARLUX Airlines, EVA Air and Korean Air from Singapore to Seattle by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful

Entertainment

8.9

Overall

9.1

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.1
Wonderful
STARLUX Airlines
9.1
Wonderful

Entertainment

8.9

Overall

9.1

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.1
Wonderful

Entertainment

8.9

Overall

9.1

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.1
Wonderful

Entertainment

8.9

Overall

9.1

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.1
Wonderful

Entertainment

8.9

Overall

9.1

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.1
Wonderful

Entertainment

8.9

Overall

9.1

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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?

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

    Flying on Japan Airlines is currently your cheapest option to Seattle, with prices starting at S$ 978. Additional round-trip tickets that might be worth considering are offered by Asiana Airlines and STARLUX Airlines, with the lowest prices starting at S$ 1,025 and S$ 1,030, respectively. You may be able to fly from Singapore to Seattle for 19% 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 ANA, which is currently one of the cheapest options available, starting at S$ 664. United Airlines flights start at S$ 676 while deals on China Airlines start at S$ 689 one-way.

  • What are the cheapest flights from Singapore to Seattle?

    On average you can expect to pay S$ 9,218 for a flight from Singapore to Seattle. The cheapest flight overall is S$ 8,171 while the most popular route, (Singapore Changi - Seattle/Tacoma Intl) is currently priced at S$ 863.

  • 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

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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 13 June 2025.

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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
ANACheapestS$ 833AverageS$ 1,272FlexibilityNo cancel feeOn-time80%
Search ANA flights
STARLUX AirlinesCheapestS$ 951AverageS$ 1,128FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
China AirlinesCheapestS$ 979AverageS$ 1,054FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
EVA AirCheapestS$ 1,011AverageS$ 1,242FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
United AirlinesCheapestS$ 1,021AverageS$ 1,090FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Korean AirCheapestS$ 1,054AverageS$ 1,320FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Singapore AirlinesCheapestS$ 1,138AverageS$ 1,568FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Japan AirlinesCheapestS$ 1,367AverageS$ 1,532FlexibilityNo 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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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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