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

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Compare Singapore Changi to Seattle / Tacoma International flight deals

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

Book the best Seattle / Tacoma International fare with no extra fees

Flight deals from Singapore Changi to Seattle / Tacoma International

Looking for a cheap last-minute deal or the best return flight from Singapore Changi to Seattle / Tacoma International? Find the lowest prices on one-way and return tickets right here.
Seattle.$1,011 per passenger.Departing Tue, 15 Jul, returning Tue, 22 Jul.Return flight with Japan Airlines.Outbound indirect flight with Japan Airlines, departs from Singapore Changi on Tue, 15 Jul, arriving in Seattle / Tacoma International.Inbound indirect flight with Japan Airlines, departs from Seattle / Tacoma International on Tue, 22 Jul, arriving in Singapore Changi.Price includes taxes and charges.From $1,011, select.
Seattle.$1,073 per passenger.Departing Thu, 18 Sep, returning Sat, 27 Sep.Return flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Singapore Changi on Thu, 18 Sep, arriving in Seattle / Tacoma International.Inbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Sat, 27 Sep, arriving in Singapore Changi.Price includes taxes and charges.From $1,073, select.
Seattle.$1,083 per passenger.Departing Fri, 20 Jun, returning Fri, 4 Jul.Return flight with Japan Airlines.Outbound indirect flight with Japan Airlines, departs from Singapore Changi on Fri, 20 Jun, arriving in Seattle / Tacoma International.Inbound indirect flight with Japan Airlines, departs from Seattle / Tacoma International on Fri, 4 Jul, arriving in Singapore Changi.Price includes taxes and charges.From $1,083, select.
Seattle.$1,113 per passenger.Departing Thu, 16 Oct, returning Sun, 19 Oct.Return flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Singapore Changi on Thu, 16 Oct, arriving in Seattle / Tacoma International.Inbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Sun, 19 Oct, arriving in Singapore Changi.Price includes taxes and charges.From $1,113, select.
Seattle.$1,113 per passenger.Departing Fri, 20 Jun, returning Tue, 24 Jun.Return flight with Japan Airlines.Outbound indirect flight with Japan Airlines, departs from Singapore Changi on Fri, 20 Jun, arriving in Seattle / Tacoma International.Inbound indirect flight with Japan Airlines, departs from Seattle / Tacoma International on Tue, 24 Jun, arriving in Singapore Changi.Price includes taxes and charges.From $1,113, select.
Seattle.$1,147 per passenger.Departing Thu, 10 Jul, returning Wed, 20 Aug.Return flight with United.Outbound indirect flight with United, departs from Singapore Changi on Thu, 10 Jul, arriving in Seattle / Tacoma International.Inbound indirect flight with United, departs from Seattle / Tacoma International on Wed, 20 Aug, arriving in Singapore Changi.Price includes taxes and charges.From $1,147, select.
Seattle.$1,157 per passenger.Departing Sat, 7 Jun, returning Wed, 24 Sep.Return flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Singapore Changi on Sat, 7 Jun, arriving in Seattle / Tacoma International.Inbound indirect flight with STARLUX Airlines, departs from Seattle / Tacoma International on Wed, 24 Sep, arriving in Singapore Changi.Price includes taxes and charges.From $1,157, select.
Seattle.$1,158 per passenger.Departing Wed, 17 Sep, returning Wed, 1 Oct.Return flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Singapore Changi on Wed, 17 Sep, arriving in Seattle / Tacoma International.Inbound indirect flight with STARLUX Airlines, departs from Seattle / Tacoma International on Wed, 1 Oct, arriving in Singapore Changi.Price includes taxes and charges.From $1,158, select.

Find the cheapest month to fly from Singapore Changi to Seattle / Tacoma International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Singapore Changi to Seattle / Tacoma International flights are currently cheapest in July.
Jun
from $1,113
Jul
from $1,011
Aug
from $1,209
Sep
from $1,073
Oct
from $1,113
Nov
from $1,184
Dec
from $1,343
Jan
from $2,464
Feb
from $1,291
Mar
from $1,295
Apr
from $1,218
May
from $1,213

Direct flights from Singapore Changi to Seattle / Tacoma International

Singapore Changi to Seattle / Tacoma International: Alternative routes

Compare routes from Singapore Changi to Seattle below. You may find an airport to fly into that's cheaper, faster, or easier than Seattle / Tacoma International.

Singapore to Seattle: Flight information

The things to know before you go.
Cheapest flight found$1,011
Cheapest month to flyJuly
Average flight time14 hrs, 22 mins
Most popular airlineSingapore Airlines
Average flights per week6

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

The best price we found for a return flight from Singapore Changi to Seattle / Tacoma International is $1,011. 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 / Tacoma International.
Singapore Airlines flies direct from Singapore Changi to Seattle / Tacoma International.
As of June 2025, there are 6 flights per week flying from Singapore Changi to Seattle / Tacoma International.
The cheapest month to fly from Singapore Changi to Seattle / Tacoma International is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Singapore Changi Airport to Seattle / Tacoma International Airport on Tuesday, 15 July 2025.
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 / Tacoma International 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.
Currently, Japan Airlines and Singapore Airlines offer the cheapest flight tickets to Seattle / Tacoma International.

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

  • Around 14 hours 30 minutes is how long you'll be travelling on a direct flight from Changi International Airport to Seattle-Tacoma International Airport.

  • Seattle is 15 hours behind Singapore and follows the UTC-7 timezone.

  • Flights from SIN to SEA start from 09:00 — the first with Singapore Airlines. The latest departure is at 09:05 with Singapore Airlines. Overall, there are 11 weekly Changi International Airport to Seattle-Tacoma International Airport flights.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Make sure you're at the airport on time to catch your SIN to SEA flight.

  • Travelling during a peak time such as April? Public holidays and other high seasons can result in longer lines at security. Play things extra safe and arrive up to four hours ahead of an international flight and two hours before a domestic departure.

  • Jetting into Seattle (and then exploring more of United States!) is a snap with Singapore Airlines. This popular carrier offers direct flights from Changi International Airport to Seattle-Tacoma International Airport.

  • The majority of passengers choose to fly with Singapore Airlines on this route.

  • The carrier with the most consistent on-time arrivals for SIN to SEA flights is Singapore Airlines.

  • Think about adding a stopover when booking your ticket from Changi International Airport to Seattle-Tacoma International Airport. Simply uncheck 'Direct flights only' to break up your journey, or perhaps see a new city along the way. Here are some options between SIN and SEA:

    • Ninoy Aquino International Airport

    • Narita International Airport

    • Vancouver International Airport

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

  • The cheapest price we've found for a one-way Changi International Airport to Seattle-Tacoma International Airport flight is $717. A return fare right now is $1,011. Depending on the availability and when you book, these fares can change.

  • Score cheap tickets from SIN to SEA by booking six months ahead. Based on our research, that's the sweet spot for bagging a bargain.

  • May is the cheapest month for flights from Changi International Airport to Seattle-Tacoma International Airport. If you prefer to travel during a different time of year, the 'Whole month' tool will give you the lowest prices for every month.

  • Cut down on the time spent looking for cheap flights from SIN to SEA by creating a Price Alert. You'll get an email or notification on the app when fares go down.

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

Handy information about Changi International Airport (SIN)

  • When it comes to the on-time performance of Changi International Airport, data shows 68.95% of flights arrive within the expected timeframe.

  • To get to Changi International Airport from central Singapore, it takes around 20 minutes if you're going by car. This depends on traffic, however. It's approximately 21 kilometres from the airport to the city centre.

  • The trip on public transport takes about 1 hour.

  • Have an early flight from Changi International Airport to Seattle-Tacoma International Airport? Avoid the hassle of rushing to the terminal (and enjoy a little extra shut-eye) by picking one of these stays near SIN:

Arriving at Seattle-Tacoma International Airport (SEA)

Getting from Seattle-Tacoma International Airport (SEA) to central Seattle

  • From Seattle-Tacoma International Airport, Seattle is approximately 23 kilometres away. It takes around 20 minutes to reach the centre driving.

  • If you're travelling on public transport, expect a journey time of roughly 55 minutes.

When to fly to Seattle-Tacoma International Airport (SEA)

  • It's time to pick your trip dates for your flight from Changi International Airport to Seattle-Tacoma International Airport. July is the most popular month to head to Seattle. If you like a more low-key vibe, go in May.

  • When booking your flight from Changi International Airport to Seattle-Tacoma International Airport, consider the kind of weather you enjoy. August is the warmest month in Seattle, with temperatures ranging from 12ºC (54ºF) to 28ºC (82ºF).

  • February has average temperatures of between -1ºC (30ºF) and 11ºC (52ºF). Look for cheap tickets from SIN to SEA sometime around then if you like cooler conditions.

Explore more of United States

  • Seattle has its own special appeal, but there are so many other parts of United States just waiting to be explored. Around 241 kilometres south of Seattle, a trip to Portland will keep you on the go. Don't miss top attractions like Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • Spokane is another essential stop in United States and is around 370 kilometres east of Seattle. No trip is complete without a visit to Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

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.