Skyscanner home

C$582 Cheap Flights from Singapore Changi to Seattle

Compare Singapore Changi to Seattle flight deals

Find the cheapest month or even day of the year to fly to Seattle

Book the best Seattle fare with no extra fees

TrustScore 4.5 out of 5 4.5 out of 5 based on 914 reviews Trustpilot

Flight deals from Singapore Changi to Seattle

Looking for a cheap last-minute deal or the best round-trip flight from Singapore Changi to Seattle? Find the lowest prices on one-way and round-trip tickets right here.
Seattle.C$582 per passenger.Departing Thu., Oct. 29.One-way flight with Singapore Airlines.Outbound direct flight with Singapore Airlines departs from Singapore Changi on Thu., Oct. 29, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$582, select.
Seattle.C$584 per passenger.Departing Tue., Nov. 10.One-way flight with Singapore Airlines.Outbound direct flight with Singapore Airlines departs from Singapore Changi on Tue., Nov. 10, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$584, select.
Seattle.C$592 per passenger.Departing Wed., Mar. 11.One-way flight with Hainan Airlines.Outbound indirect flight with Hainan Airlines, departs from Singapore Changi on Wed., Mar. 11, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$592, select.
Seattle.C$598 per passenger.Departing Wed., Apr. 22.One-way flight with Hainan Airlines.Outbound indirect flight with Hainan Airlines, departs from Singapore Changi on Wed., Apr. 22, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$598, select.
Seattle.C$631 per passenger.Departing Fri., May 15.One-way flight with Singapore Airlines.Outbound direct flight with Singapore Airlines departs from Singapore Changi on Fri., May 15, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$631, select.
Seattle.C$633 per passenger.Departing Sun., Jun. 7.One-way flight with Singapore Airlines.Outbound direct flight with Singapore Airlines departs from Singapore Changi on Sun., Jun. 7, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$633, select.
Seattle.C$642 per passenger.Departing Thu., Sep. 3.One-way flight with United.Outbound indirect flight with United, departs from Singapore Changi on Thu., Sep. 3, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$642, select.
Seattle.C$668 per passenger.Departing Wed., Jul. 1.One-way flight with AirAsia.Outbound indirect flight with AirAsia, departs from Singapore Changi on Wed., Jul. 1, arriving in Seattle / Tacoma International.Price includes taxes and charges.From C$668, select.

Find the cheapest month to fly from Singapore Changi to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Singapore Changi to Seattle flights are currently cheapest in October.
Feb.
from C$729
Mar.
from C$592
Apr.
from C$598
May
from C$631
Jun.
from C$633
Jul.
from C$668
Aug.
from C$740
Sep.
from C$642
Oct.
from C$582
Nov.
from C$584
Dec.
from C$751
Jan.
from C$718

Direct flights from Singapore Changi to Seattle

Alternative Singapore Changi to Seattle routes

Looking for the cheapest, fastest or easiest route from Singapore Changi to Seattle? You could fly into the following airports instead.

Seattle Lake Union SPB

2km from central Seattle
Closest
from C$781
Search flights

Seattle Boeing Fld

11km from central Seattle
from C$1,126
Search flights

Seattle / Tacoma International

20km from central Seattle
Cheapest
from C$582
Search flights

Paine Field

33km from central Seattle
from C$888
Search flights

Singapore to Seattle: Flight information

The things to know before you go.
Cheapest flight foundC$582
Cheapest month to flyOctober
Average flight time14 hrs, 22 mins
Most popular airlineSingapore Airlines
Average flights per week12

Check out these Seattle hotels

Ready to plan your stay? Other travellers rate these Seattle hotels for cleanliness, service and location.
Vermithor's Bronze Ember Sweet Suite
2.68 km from city centre
C$132
Per night
Populus Seattle
2.68 km from city centre
C$368
Per night
Modern Sustainable Design in Ballard
5.69 km from city centre
C$162
Per night
Vermithor's Bronze Ember Sweet Suite
2.68 km from city centre
C$132
Per night
Populus Seattle
2.68 km from city centre
C$368
Per night
Modern Sustainable Design in Ballard
5.69 km from city centre
C$162
Per night
Explore top-rated hotels

Finding cheap flights from Singapore Changi to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Singapore Changi to Seattle is C$1,021. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
14 hours and 22 minutes is the average flight time from Singapore Changi to Seattle.
Singapore Airlines flies direct from Singapore Changi to Seattle.
As of February 2026, there are 6 flights per week flying from Singapore Changi to Seattle.
The cheapest month to fly from Singapore Changi to Seattle is usually September.
If you're flying from Singapore Changi Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from C$1,021.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Singapore Changi Airport to Seattle on Tuesday, September 8, 2026.
Yes – the average flight time is 14 hours and 22 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In February, the average temperature is usually around 4°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, United and Singapore Airlines offer the cheapest flight tickets to Seattle.

Flying from Changi International Airport (SIN) to Seattle: what you need to know

  • Around 16 hours 38 minutes is how long you'll be travelling on a direct flight from Changi International Airport to Seattle.

  • Seattle is 15 hours behind Singapore, where Changi International Airport is located. Seattle operates on the UTC-7 timezone.

  • The most popular route is from Changi International Airport (SIN) to Seattle-Tacoma International Airport (SEA). You can select from 11 services every week between these two airports. If you want to get on your way as soon as you can, the earliest flight from SIN to SEA is the 09:00 Singapore Airlines option. If you prefer to travel later, the last departure is at 09:05 with Singapore Airlines.

  • Leave enough time to catch your flight from SIN to Seattle. Generally, it's best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Flying during a popular month such as August? School holidays and other high seasons can lead to longer lines and delays at check-in and security. Be extra cautious and get there up to four hours ahead of an international flight and two hours before a domestic departure.

  • Nonstop flights from Changi International Airport (SIN) to Seattle are available for booking. Seattle-Tacoma International Airport (SEA) is where you'll arrive.

  • Singapore Airlines is a popular airline that offers direct flights from Changi International Airport to Seattle.

  • We make it easy to find a flight from SIN to Seattle with a stopover. To see all your options, deselect 'Direct flights only.' Next, choose a flight that has a stop long enough to tour your chosen city. Top stopovers include:

    • Ninoy Aquino International Airport (MNL)

    • Narita International Airport (NRT)

    • Vancouver International Airport (YVR)

  • You will need an ETA for United States if you hold a passport from Singapore and are visiting for tourism purposes. Travel documentation and visa requirements can change. So before booking your cheap ticket from Changi International Airport to Seattle, check with your airline and your destination country's local consulate or embassy for the latest information.

  • SIN is around 21 kilometres from central Singapore. If you're catching a cab, driving or ride-sharing from the centre, it'll take you 21 minutes or so to get there, depending on the traffic. If you're taking public transport, expect the trip time to be approximately 1 hour.

  • Searching for a handy hotel close to SIN? If you're boarding an early flight from Changi International Airport to Seattle, these stays will have you sleeping moments from check-in:

How to find the cheapest flights from Changi International Airport (SIN) to Seattle

  • The best price we've seen for a one-way ticket from Changi International Airport to Seattle is C$582. The cheapest price for a return flight is C$1,021. Keep in mind fares may change due to availability at the time of booking.

  • Lock in cheap tickets from SIN to Seattle by booking 9 months ahead. According to our research, that's the sweet spot for bagging a bargain.

  • May is the cheapest month for tickets from Changi International Airport to Seattle. If you'd like to travel during a different time of year, the 'Whole month' tool will show you the lowest prices for every month.

  • Sign into your online account or use the app to set up a Price Alert. You'll be notified straight away if there's a cheaper deal on this route. It's simple to do, and it'll save you from searching for cheap tickets from SIN to Seattle every day.

  • Tailor your trip with filters. Pick your ideal departure and arrival times, airlines and total journey duration. You can also sort the results by 'Cheapest,' 'Best' or 'Fastest' flights from Changi International Airport to Seattle.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) to central Seattle is roughly 23 kilometres. It'll take you about 18 minutes to reach the centre driving.

  • If you're taking public transport, expect a journey of around 54 minutes.

  • If you're arriving on a late flight from Changi International Airport to Seattle, nothing beats the convenience of staying close to the terminal. Collect your bags from the carousel and then be showered and resting soon after at one of these accommodation options near SEA:

Lake Union Sea Plane Base Airport (LKE)

Best time to go to Seattle

  • July is the most popular month to board a flight from Changi International Airport to Seattle while May is the quietest. To work out the best time to visit Seattle, consider whether you like a lively atmosphere or a quieter vibe.

  • The warmest month in Seattle is August, with temperatures ranging between 12ºC and 28ºC. Lock in your flights from Changi International Airport to Seattle in this month if this is the type of weather you enjoy.

  • Search for cheap flights from SIN to Seattle in February if you like cooler conditions. Temperatures are at their lowest around then, ranging between -1ºC and 11ºC on average.

More about Seattle

  • When it comes to searching for somewhere to rest your head, you'll find the best stays in Seattle right here. Explore these options once you've booked your flight from Changi International Airport to Seattle:

  • All great journeys should include a little sightseeing. Gas Works - Lake View Point, Queen Anne Bowl Playfield and LMN Architects are must-do's during your Seattle adventure.

Complete your Seattle trip with a car rental

  • We use the same magic that helped you find your cheap flight from Changi International Airport to Seattle to track down deals on car rentals. Search for your ride in seconds and compare offers in one place. Plus you'll find all the info on car rentals in Seattle, from the most popular rental company to the average daily price.

Plan the rest of your trip from Singapore to Seattle

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.