$472 Cheap Flights from Singapore (SIN) to Seattle (SEA)

View $472 flight on Wed, Sep 16, 2026Opens in a new window

Popular airlines from Singapore Changi Airport (SIN) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Singapore to Seattle (SIN-SEA)

Prices were available within the past 7 days and start at $472 for one-way flights and $792 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Thu, Nov 19 - Wed, Dec 2
SIN
Singapore
SEA
Seattle
$792 Roundtrip, found 4 days ago
$792
Roundtrip
found 4 days ago
Select Korean Air flight, departing Thu, Nov 19 from Singapore to Seattle, returning Wed, Dec 2, priced at $792 found 4 days ago
Delta
Tue, Sep 1 - Wed, Nov 18
SIN
Singapore
SEA
Seattle
$795 Roundtrip, found 15 hours ago
$795
Roundtrip
found 15 hours ago
Select Delta flight, departing Tue, Sep 1 from Singapore to Seattle, returning Wed, Nov 18, priced at $795 found 15 hours ago
Asiana Airlines
Thu, Nov 5 - Mon, Nov 9
SIN
Singapore
SEA
Seattle
$860 Roundtrip, found 2 days ago
$860
Roundtrip
found 2 days ago
Select Asiana Airlines flight, departing Thu, Nov 5 from Singapore to Seattle, returning Mon, Nov 9, priced at $860 found 2 days ago
All Nippon Airways
Thu, Sep 3 - Mon, Sep 14
SIN
Singapore
SEA
Seattle
$895 Roundtrip, found 3 days ago
$895
Roundtrip
found 3 days ago
Select All Nippon Airways flight, departing Thu, Sep 3 from Singapore to Seattle, returning Mon, Sep 14, priced at $895 found 3 days ago
United
Wed, Jun 24 - Tue, Aug 25
SIN
Singapore
SEA
Seattle
$901 Roundtrip, found 6 days ago
$901
Roundtrip
found 6 days ago
Select United flight, departing Wed, Jun 24 from Singapore to Seattle, returning Tue, Aug 25, priced at $901 found 6 days ago
STARLUX Airlines
Sun, Jan 31 - Mon, Feb 1
SIN
Singapore
SEA
Seattle
$965 Roundtrip, found 4 days ago
$965
Roundtrip
found 4 days ago
Select STARLUX Airlines flight, departing Sun, Jan 31 from Singapore to Seattle, returning Mon, Feb 1, priced at $965 found 4 days ago
Qatar Airways
Sun, Jul 26 - Mon, Aug 31
SIN
Singapore
SEA
Seattle
$1,002 Roundtrip, found 4 hours ago
$1,002
Roundtrip
found 4 hours ago
Select Qatar Airways flight, departing Sun, Jul 26 from Singapore to Seattle, returning Mon, Aug 31, priced at $1,002 found 4 hours ago
EVA Airways
Tue, Nov 3 - Sat, Jan 30
SIN
Singapore
SEA
Seattle
$1,004 Roundtrip, found 3 days ago
$1,004
Roundtrip
found 3 days ago
Select EVA Airways flight, departing Tue, Nov 3 from Singapore to Seattle, returning Sat, Jan 30, priced at $1,004 found 3 days ago
China Airlines
Sun, Jan 31 - Mon, Feb 1
SIN
Singapore
SEA
Seattle
$1,013 Roundtrip, found 4 days ago
$1,013
Roundtrip
found 4 days ago
Select China Airlines flight, departing Sun, Jan 31 from Singapore to Seattle, returning Mon, Feb 1, priced at $1,013 found 4 days ago
Japan Airlines
Wed, Sep 2 - Wed, Sep 30
SIN
Singapore
SEA
Seattle
$1,072 Roundtrip, found 1 day ago
$1,072
Roundtrip
found 1 day ago
Select Japan Airlines flight, departing Wed, Sep 2 from Singapore to Seattle, returning Wed, Sep 30, priced at $1,072 found 1 day ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $1,102
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $1,102

Frequently asked questions

How much does a flight from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from $472 and cheap return flights from $792 Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Expedia. One-way flights typically cost between $524 and $3904, and return flights often range between $951 and $6651. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest month to fly from SIN to SEA is November when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You can fly direct from SIN to SEA on Singapore Airlines, with around 7 flights per week.
What is the cheapest airline that flies from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Singapore Airlines is one of the cheapest airlines offering nonstop flights from Singapore (SIN) to Seattle (SEA), starting from around $899 for a round-trip ticket. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Singapore (SIN) to Seattle, WA (SEA) will differ from traveler to traveler. If you like to fly early, Singapore Airlines offers early morning flights. If price is the most important factor, Singapore Airlines typically offers the lowest fares. Cathay Pacific offers the most daily flights from Singapore to Seattle, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
On average, there are around 1 nonstop flights per day from Changi (SIN) to Seattle - Tacoma Intl. (SEA). For more options, look at flights that include layovers.
What is the earliest flight from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from SIN to SEA. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Singapore (SIN) to Seattle, WA (SEA) are from 9am to noon. About 32% of passengers prefer this time window. Many major carriers, including Singapore Airlines and United Airlines, offer flights during this window. This timing works well because it allows travelers to arrive in Seattle in the early afternoon, ready to explore the city.
How long does it take to fly from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Direct flights from SIN to SEA usually take about 14 hours 20 minutes, traveling roughly 8,066 miles. If you opt for a connecting flight, expect to add around 10 hours 10 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Business class is available on flights from SIN to SEA. Airlines that offer business class service on this route include:

  • Batik Air
  • Malaysia Airlines
  • Japan Airlines
  • Turkish Airlines
  • Korean Air
  • Emirates
  • All Nippon Airways
  • Cathay Pacific
  • China Airlines
  • Singapore Airlines

First class cabins are available on:

  • Emirates
  • British Airways
  • Japan Airlines
  • Starlux Airlines

How much is a business class flight from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A direct, return business class ticket from Singapore (SIN) to Seattle (SEA) typically costs between $10,374 - $12,175. A non-stop, one-way business class flight is usually around $3,350 - $6,027. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Changi (SIN)?
If you're planning to travel to Seattle from Changi (SIN), you can fly into Seattle - Tacoma Intl. (SEA) Some flights may connect through major hubs like Hong Kong Intl. (HKG), Narita Intl. (NRT), Dubai Intl. (DXB) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) Seattle Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Changi
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, Alaska Airlines, All Nippon Airways, Asiana Airlines, British Airways, Cathay Pacific, China Airlines, Delta, EVA Airways, Emirates, Japan Airlines, KLM, Korean Air, Lufthansa, Philippine Airlines, Qatar Airways, STARLUX Airlines, Singapore Airlines, Turkish Airlines, United
Roundtrip price
$792
Distance
8064 mi
Average flight time
15 hours 15 mins

Book with confidence

Singapore to Seattle Flights

The cheapest times to fly from Singapore to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Singapore to Seattle are during the month of November. You can find some of the cheapest flights from Singapore to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Singapore to Seattle

Sunday is one of the best days to book for cheap flights from Singapore to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Singapore to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Singapore to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $472 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Singapore to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Singapore to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Singapore to Seattle Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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