Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Singapore to Seattle from S$ 651

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 8-9. 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

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 3 July 2025.

Round-trip from

S$ 830

One-way from

S$ 651

Popular in

August

Cheapest in

February

Average price

S$ 1,334
Asiana Airlines
  • Asiana Airlines
  • 19-11-25-11
  • 2 total stops
  • 60h 30m total
  • Singapore to Seattle
Search Deals
China Airlines
  • China Airlines
  • 8-9
  • 1 total stop
  • 21h 00m total
  • Singapore to Seattle
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (S$ 156 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (S$ 33 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 3 July 2025.

Wed 19-1123:10SIN - SEA
1 stop30h 45mAsiana Airlines
Tue 25-1100:10SEA - SIN
1 stop29h 45mAsiana Airlines
Deal found 30-6S$ 830
Wed 19-1110:00SIN - SEA
2 stops25h 16mMultiple Airlines
Wed 26-1120:00SEA - SIN
1 stop19h 55mMultiple Airlines
Deal found 30-6S$ 849
Sat 12-708:05SIN - SEA
1 stop17h 30mJapan Airlines
Tue 22-708:00SEA - SIN
2 stops42h 30mJapan Airlines
Deal found 30-6S$ 884
Fri 21-1110:00SIN - SEA
1 stop20h 26mAir Canada
Sun 30-1120:00SEA - SIN
2 stops40h 55mAir Canada
Deal found 1-7S$ 927
Sat 12-720:40SIN - SEA
1 stop27h 08mUnited Airlines
Fri 15-805:10SEA - SIN
1 stop22h 15mUnited Airlines
Deal found 1-7S$ 951
Wed 19-1114:45SIN - SEA
1 stop16h 20mSTARLUX Airlines
Wed 26-1123:45SEA - SIN
1 stop21h 40mSTARLUX Airlines
Deal found 30-6S$ 998
Mon 1-902:00SIN - SEA
1 stop32h 45mChina Airlines
Sat 27-901:10SEA - SIN
1 stop20h 25mChina Airlines
Deal found 30-6S$ 1,038
Tue 2-922:30SIN - SEA
1 stop27h 10mKorean Air
Sun 28-912:50SEA - SIN
1 stop19h 50mKorean Air
Deal found 30-6S$ 1,039

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 3 July 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 19-11

23:10-13:55

1 stop30h 45m

Seattle/Tacoma Intl

Tue 25-11

00:10-21:55

1 stop29h 45m

S$ 830

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 19-11

10:00-19:16

2 stops25h 16m

Seattle/Tacoma Intl

Wed 26-11

20:00-07:55

1 stop19h 55m

S$ 849

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Fri 21-11

10:00-14:26

1 stop20h 26m

Seattle/Tacoma Intl

Sun 30-11

20:00-04:55

2 stops40h 55m

S$ 927

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 13-7

08:45-00:59

1 stop31h 14m

Seattle/Tacoma Intl

Fri 15-8

07:00-18:25

1 stop20h 25m

S$ 951

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 19-11

14:45-15:05

1 stop16h 20m

Seattle/Tacoma Intl

Wed 26-11

23:45-13:25

1 stop21h 40m

S$ 998

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 1-9

02:00-19:45

1 stop32h 45m

Seattle/Tacoma Intl

Sat 27-9

01:10-12:35

1 stop20h 25m

S$ 1,038

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 2-9

22:30-10:40

1 stop27h 10m

Seattle/Tacoma Intl

Sun 28-9

12:50-23:40

1 stop19h 50m

S$ 1,039

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 8-9

13:45-19:45

1 stop21h 00m

S$ 651

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Mon 15-12

14:45-15:05

1 stop16h 20m

S$ 654

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 9-7

11:05-22:16

2 stops26h 11m

S$ 679

Flights are sorted by cheapest return flights first.

Deals found on 3-7

Showing 1-10 of 15 results
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?

Use this chart to determine the optimal time to book a return flight from Singapore to Seattle. Price data was last updated on 27 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 3 July 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 30% 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.

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 3 July 2025.
Get a feel of what it's like to fly with STARLUX Airlines, Korean Air, andANA 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
9.1
Wonderful
Check prices

Entertainment

9.0

Food

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

Overall

9.1

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
Check prices

Entertainment

9.0

Food

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

Overall

9.1

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.
Korean Air
8.4
Very Good
1,101 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Entertainment

9.0

Food

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

Overall

9.1

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.
ANA
8.4
Very Good
893 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Entertainment

9.0

Food

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

Overall

9.1

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.
China Airlines
8.3
Very Good
747 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Entertainment

9.0

Food

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

Overall

9.1

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.
Asiana Airlines
8.2
Very Good
452 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Entertainment

9.0

Food

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

Overall

9.1

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?

    Flights from Singapore Changi to Seattle/Tacoma Intl have been viewed 167 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$ 830. Additional round-trip tickets that might be worth considering are offered by Air Canada and United Airlines, with the lowest prices starting at S$ 927 and S$ 951, respectively. You may be able to fly from Singapore to Seattle for 30% 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 China Airlines, which is currently one of the cheapest options available, starting at S$ 651. STARLUX Airlines flights start at S$ 654 while deals on United Airlines start at S$ 679 one-way.

  • 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 3 July 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 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
ANACheapestS$ 914AverageS$ 1,265FlexibilityNo cancel feeOn-time80%
Search ANA flights
STARLUX AirlinesCheapestS$ 945AverageS$ 1,100FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
China AirlinesCheapestS$ 974AverageS$ 1,048FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
EVA AirCheapestS$ 1,005AverageS$ 1,175FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
United AirlinesCheapestS$ 1,021AverageS$ 1,085FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Korean AirCheapestS$ 1,048AverageS$ 1,313FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Singapore AirlinesCheapestS$ 1,086AverageS$ 1,558FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Japan AirlinesCheapestS$ 1,360AverageS$ 1,476FlexibilityNo cancel feeOn-time79%
Search Japan Airlines 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights