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CA $701 Cheap Flights from Singapore (SIN) to Seattle (SEA)

View CA $701 flight on Sun, Nov 1, 2026Opens in a new window

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

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Cheap flights from Singapore (SIN) to Seattle (SEA)

Prices were available within the past 7 days and start at CA $701 for one-way flights and CA $1,144 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, Dec 3 - Sun, Dec 13
SIN
Singapore
SEA
Seattle
CA $1,144 Roundtrip, found 3 days ago
CA $1,144
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Dec 3 from Singapore to Seattle, returning Sun, Dec 13, priced at CA $1,144 found 3 days ago
Air Canada
Sat, Oct 3 - Sun, Oct 18
SIN
Singapore
SEA
Seattle
CA $1,144 Roundtrip, found 4 days ago
CA $1,144
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sat, Oct 3 from Singapore to Seattle, returning Sun, Oct 18, priced at CA $1,144 found 4 days ago
Air Canada
Sat, Dec 12 - Thu, Dec 31
SIN
Singapore
SEA
Seattle
CA $1,146 Roundtrip, found 4 days ago
CA $1,146
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sat, Dec 12 from Singapore to Seattle, returning Thu, Dec 31, priced at CA $1,146 found 4 days ago
Cathay Pacific
Fri, Oct 2 - Tue, Oct 20
SIN
Singapore
SEA
Seattle
CA $1,179 Roundtrip, found 2 days ago
CA $1,179
Roundtrip
found 2 days ago
Select Cathay Pacific flight, departing Fri, Oct 2 from Singapore to Seattle, returning Tue, Oct 20, priced at CA $1,179 found 2 days ago
Delta
Fri, Oct 30 - Tue, Nov 3
SIN
Singapore
SEA
Seattle
CA $1,308 Roundtrip, found 6 days ago
CA $1,308
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Oct 30 from Singapore to Seattle, returning Tue, Nov 3, priced at CA $1,308 found 6 days ago
All Nippon Airways
Sun, Sep 6 - Sun, Sep 13
SIN
Singapore
SEA
Seattle
CA $1,359 Roundtrip, found 5 days ago
CA $1,359
Roundtrip
found 5 days ago
Select All Nippon Airways flight, departing Sun, Sep 6 from Singapore to Seattle, returning Sun, Sep 13, priced at CA $1,359 found 5 days ago
STARLUX Airlines
Fri, Dec 11 - Mon, Dec 28
SIN
Singapore
SEA
Seattle
CA $1,388 Roundtrip, found 4 days ago
CA $1,388
Roundtrip
found 4 days ago
Select STARLUX Airlines flight, departing Fri, Dec 11 from Singapore to Seattle, returning Mon, Dec 28, priced at CA $1,388 found 4 days ago
EVA Airways
Tue, Dec 1 - Tue, Jan 26
SIN
Singapore
SEA
Seattle
CA $1,412 Roundtrip, found 4 days ago
CA $1,412
Roundtrip
found 4 days ago
Select EVA Airways flight, departing Tue, Dec 1 from Singapore to Seattle, returning Tue, Jan 26, priced at CA $1,412 found 4 days ago
China Airlines
Tue, Dec 1 - Tue, Jan 26
SIN
Singapore
SEA
Seattle
CA $1,429 Roundtrip, found 4 days ago
CA $1,429
Roundtrip
found 4 days ago
Select China Airlines flight, departing Tue, Dec 1 from Singapore to Seattle, returning Tue, Jan 26, priced at CA $1,429 found 4 days ago
Philippine Airlines
Fri, Oct 2 - Tue, Oct 20
SIN
Singapore
SEA
Seattle
CA $1,453 Roundtrip, found 2 days ago
CA $1,453
Roundtrip
found 2 days ago
Select Philippine Airlines flight, departing Fri, Oct 2 from Singapore to Seattle, returning Tue, Oct 20, priced at CA $1,453 found 2 days ago

Find the cheapest month to fly from Singapore (SIN) to Seattle (SEA)

June is typically the cheapest month to fly

From CA $914 - CA $1,273 per traveller.

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 CA $701 and cheap return flights from CA $1,144 SIN to SEA with Expedia. One-way flights typically cost between CA$806 and CA$4943. 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 SIN to SEA ticket fares go up or down.
What is the cheapest month to fly from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest months to fly from SIN to SEA are typically during off-peak season 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 are 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.)?
Only one airline offers direct flights from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.). Singapore Airlines operates 7 direct flights from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) every 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 return flights from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with tickets starting from around CA$1248 for flights that can be booked for departure within the next year. Air India offers one of the cheapest connecting return flights from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with a layover in Indira Gandhi Intl. (DEL), starting from around CA$1681. These prices are per adult for economy/coach class. 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.
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 (SIN) to Seattle, WA (SEA), 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.)?
While direct flights are limited, you'll find around 85 connecting flights per day from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.). This gives you plenty of options to choose from. Some common connection points include Hong Kong Intl. (HKG), Taoyuan Intl. (TPE), and Incheon Intl. (ICN).
What is the earliest flight from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs around 12:05 AM local time. This service is operated by Singapore Airlines and Lufthansa. This is a seasonal service, active in April, May, June, July, August, September, and October. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll find the most flights from Singapore Changi (SIN) to Seattle - Tacoma Intl. (SEA) on Wednesdays, with around 62 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Cathay Pacific, Singapore Airlines, and Korean Air. Flight options are notably more plentiful on Wednesdays compared to other days of the week, offering you a better selection.
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-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are in the late evening, from 9pm to midnight. Many major carriers, including British Airways, Korean Air and United, offer flights during this window. This timing works well because you can maximize your time in Singapore before your evening flight, and you'll arrive in Seattle in the morning, ready to start your day.
How long does it take to fly from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A non-stop flight from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically takes around 14 hours 50 minutes. This route covers a distance of approximately 12,981 kilometres. If you opt for a flight with one stop, your travel time will be longer, usually around 18 hours 18 minutes. Flights with two or more stops will take even longer, averaging about 24 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from Singapore (SIN-Changi) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Yes, you can fly business class or first class between SIN and SEA.Airlines that offer business class service on this route include:
  • Korean Air
  • KLM
  • Thai Airways International
  • China Eastern Airlines
  • Garuda Indonesia
  • Lufthansa
  • Air France
  • British Airways
  • Turkish Airlines
  • Alaska Airlines
  • Asiana Airlines
  • Qatar Airways
  • Cathay Pacific
  • China Airlines
  • Emirates
  • Etihad Airways
  • Air Canada
  • Philippine Airlines
  • Malaysia Airlines
  • Juneyao Airlines
  • Japan Airlines
  • Singapore Airlines
  • Air India
  • Air Japan Company
  • Starlux Airlines
  • EVA Airways
  • Finnair
  • All Nippon Airways
  • Malindo Air
First class cabins are available on British Airways, Emirates, Japan Airlines, and Starlux Airlines.
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, WA (SEA) from Singapore (SIN)?
If you're planning to travel to Seattle from Changi (SIN), you can fly directly into Seattle - Tacoma Intl. (SEA) which offers international flights and connections. Some flights may connect through major hubs like Hong Kong Intl. (HKG), Narita Intl. (NRT), or 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.) flight and hotel package 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, EVA Airways, Emirates, Lufthansa, Philippine Airlines, Qatar Airways, Singapore Airlines
Roundtrip price
CA $1,143
Distance
12903 km
Average flight time
15 hours 45 mins

Book with confidence

Singapore to Seattle Flights

The easy way to book your flights from Singapore to Seattle 

With Expedia, it’s simple to find and book flights to Seattle from Singapore whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Seattle - Tacoma Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Singapore to Seattle today, tomorrow, or this week.  

 

Save dollars with cheap flights from Changi, SIN to Seattle - Tacoma Intl., SEA 

Sort your search results by price to find great deals on your flight from Singapore to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Singapore currently is just CA $1,144 rising to CA $1,453.  

Here are more money-saving tips: 

  • Fly in December when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Seattle  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Seattle from Singapore 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Seattle with Expedia today.

Singapore to Seattle Flights

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*Available to Expedia members.