Cheap flights from Singapore to Seattle from S$ 544

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 17-9. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — SEA
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Singapore Changi to Seattle/Tacoma Intl are usually found in February or September, 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 12 September 2025.

Round-trip from

S$ 773

One-way from

S$ 544

Popular in

August

Cheapest in

February

Average price

S$ 1,117

Good round-trip deal

S$ 1,247 or less
Asiana Airlines
  • Asiana Airlines
  • 26-10-1-11
  • 2 total stops
  • 61h 30m total
  • Singapore to Seattle
Philippine Airlines
  • Philippine Airlines
  • 17-9
  • 1 total stop
  • 19h 40m total
  • Singapore to Seattle
Highest demand for flights based on searches. 1% potential increase in price (S$ 28 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (S$ 19 potential savings vs. average return price).
Average for round-trip flights in September 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 12 September 2025.

Sun 26-1023:10SIN - SEA
1 stop30h 45mAsiana Airlines
Sat 1-1100:10SEA - SIN
1 stop30h 45mAsiana Airlines
Deal found 11-9S$ 773
Mon 27-1023:10SIN - SEA
1 stop30h 45mAsiana Airlines
Sun 2-1100:10SEA - SIN
1 stop29h 45mAsiana Airlines
Deal found 12-9S$ 807
Sun 26-1003:00SIN - SEA
1 stop26h 55mMultiple Airlines
Sun 2-1100:10SEA - SIN
2 stops24h 00mMultiple Airlines
Deal found 12-9S$ 809
Mon 3-1123:10SIN - SEA
1 stop30h 45mAsiana Airlines
Tue 11-1100:10SEA - SIN
1 stop29h 45mAsiana Airlines
Deal found 11-9S$ 848
Sun 9-1123:10SIN - SEA
1 stop30h 45mAsiana Airlines
Tue 11-1100:10SEA - SIN
1 stop29h 45mAsiana Airlines
Deal found 11-9S$ 898
Tue 21-1007:30SIN - SEA
1 stop20h 00mMultiple Airlines
Mon 27-1000:10SEA - SIN
1 stop30h 15mMultiple Airlines
Deal found 11-9S$ 926
Mon 3-1123:10SIN - SEA
1 stop30h 45mAsiana Airlines
Sat 15-1100:10SEA - SIN
1 stop29h 45mAsiana Airlines
Deal found 11-9S$ 929
Thu 23-1003:15SIN - SEA
1 stop22h 25mMultiple Airlines
Sun 9-1111:00SEA - SIN
1 stop21h 10mMultiple Airlines
Deal found 11-9S$ 938

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 12 September 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 5-11

23:10-13:55

1 stop30h 45m

Seattle/Tacoma Intl

Tue 11-11

00:10-21:55

1 stop29h 45m

S$ 848

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 5-11

23:10-13:55

1 stop30h 45m

Seattle/Tacoma Intl

Sun 16-11

00:10-21:55

1 stop29h 45m

S$ 929

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 25-9

13:45-19:20

1 stop20h 35m

Seattle/Tacoma Intl

Sat 27-9

01:10-12:35

1 stop20h 25m

S$ 962

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 8-11

23:10-13:55

1 stop30h 45m

Seattle/Tacoma Intl

Tue 11-11

00:10-21:55

1 stop29h 45m

S$ 979

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 26-10

22:20-08:23

1 stop25h 03m

Seattle/Tacoma Intl

Sun 2-11

21:30-23:40

1 stop34h 10m

S$ 995

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 24-10

08:45-14:24

1 stop20h 39m

Seattle/Tacoma Intl

Sun 9-11

07:00-20:15

1 stop21h 15m

S$ 1,011

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 3-11

10:10-16:15

1 stop22h 05m

Seattle/Tacoma Intl

Wed 12-11

05:30-20:15

1 stop22h 45m

S$ 1,013

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 21-10

08:45-21:15

1 stop27h 30m

Seattle/Tacoma Intl

Tue 28-10

13:20-20:15

1 stop39h 55m

S$ 1,013

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 6-11

10:10-13:38

1 stop19h 28m

Seattle/Tacoma Intl

Tue 11-11

05:30-20:15

1 stop22h 45m

S$ 1,013

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 7-11

10:10-13:38

1 stop19h 28m

Seattle/Tacoma Intl

Mon 17-11

07:00-20:15

1 stop21h 15m

S$ 1,013

Flights are sorted by cheapest return flights first.

Deals found on 11-9

Showing 1-10 of 22 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 29 August 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 12 September 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 29% 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.

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 12 September 2025.
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

Entertainment

8.9

Food

8.8

Boarding

9.0

Comfort

8.9

Overall

8.9

Crew

9.2

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
8.9
Very Good
STARLUX Airlines
8.9
Very Good

Entertainment

8.9

Food

8.8

Boarding

9.0

Comfort

8.9

Overall

8.9

Crew

9.2

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
8.9
Very Good

Entertainment

8.9

Food

8.8

Boarding

9.0

Comfort

8.9

Overall

8.9

Crew

9.2

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
8.9
Very Good

Entertainment

8.9

Food

8.8

Boarding

9.0

Comfort

8.9

Overall

8.9

Crew

9.2

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
8.9
Very Good

Entertainment

8.9

Food

8.8

Boarding

9.0

Comfort

8.9

Overall

8.9

Crew

9.2

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
8.9
Very Good

Entertainment

8.9

Food

8.8

Boarding

9.0

Comfort

8.9

Overall

8.9

Crew

9.2

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?

  • How long is the flight from Singapore to Seattle?

    There are many flights that can get you from Singapore to Seattle in 20h 35m. Fly via Asiana Airlines or China 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 United Airlines is currently your cheapest option to Seattle, with prices starting at S$ 832. Additional round-trip tickets that might be worth considering are offered by ANA and STARLUX Airlines, with the lowest prices starting at S$ 921 and S$ 952, respectively. You may be able to fly from Singapore to Seattle for 29% 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 Singapore Airlines, which is currently one of the cheapest options available, starting at S$ 544. Philippine Airlines flights start at S$ 553 while deals on United Airlines start at S$ 595 one-way.

  • What are the cheapest flights from Singapore to Seattle?

    On average you can expect to pay S$ 1,323 for a flight from Singapore to Seattle. The cheapest flight overall is S$ 1,247 while the most popular route, (Singapore Changi - Seattle/Tacoma Intl) is currently priced at S$ 949.

  • 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 12 September 2025.

Top 7 airlines flying from Singapore to Seattle

Discover the top 7 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 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestS$ 832AverageS$ 1,089FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
ANACheapestS$ 921AverageS$ 1,265FlexibilityNo cancel feeOn-time80%
Search ANA flights
STARLUX AirlinesCheapestS$ 952AverageS$ 1,103FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
China AirlinesCheapestS$ 981AverageS$ 1,056FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
EVA AirCheapestS$ 1,005AverageS$ 1,144FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Korean AirCheapestS$ 1,056AverageS$ 1,196FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Singapore AirlinesCheapestS$ 1,160AverageS$ 1,558FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Fly with Cheapflights

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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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