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Cheap Flights from Seattle to Singapore

Compare Seattle to Singapore flight deals

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

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Flight deals from Seattle to Singapore

Looking for a cheap last-minute deal or the best return flight from Seattle to Singapore? If you want to travel next month, return fares start from $1,635. Find the lowest prices on one-way and return tickets right here.
Singapore.$1,051 per passenger.Departing Fri, 4 Sep, returning Sun, 13 Sep.Return flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Fri, 4 Sep, arriving in Singapore Changi.Inbound indirect flight with Asiana Airlines, departs from Singapore Changi on Sun, 13 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,051, select.
Singapore.$1,054 per passenger.Departing Sat, 22 Aug, returning Sat, 12 Sep.Return flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Sat, 22 Aug, arriving in Singapore Changi.Inbound indirect flight with Asiana Airlines, departs from Singapore Changi on Sat, 12 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,054, select.
Singapore.$1,067 per passenger.Departing Sat, 2 Jan, returning Sun, 31 Jan.Return flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Sat, 2 Jan, arriving in Singapore Changi.Inbound indirect flight with Asiana Airlines, departs from Singapore Changi on Sun, 31 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,067, select.
Singapore.$1,067 per passenger.Departing Fri, 4 Dec, returning Thu, 4 Mar.Return flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Fri, 4 Dec, arriving in Singapore Changi.Inbound indirect flight with Asiana Airlines, departs from Singapore Changi on Thu, 4 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,067, select.
Singapore.$1,072 per passenger.Departing Tue, 29 Sep, returning Sat, 31 Oct.Return flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Tue, 29 Sep, arriving in Singapore Changi.Inbound indirect flight with Asiana Airlines, departs from Singapore Changi on Sat, 31 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,072, select.
Singapore.$1,304 per passenger.Departing Tue, 5 May, returning Wed, 13 May.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Tue, 5 May, arriving in Singapore Changi.Inbound indirect flight with United, departs from Singapore Changi on Wed, 13 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,304, select.
Singapore.$1,313 per passenger.Departing Thu, 20 Aug, returning Sun, 30 Aug.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Thu, 20 Aug, arriving in Singapore Changi.Inbound indirect flight with United, departs from Singapore Changi on Sun, 30 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,313, select.
Singapore.$1,317 per passenger.Departing Fri, 24 Apr, returning Sat, 2 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Fri, 24 Apr, arriving in Singapore Changi.Inbound indirect flight with Delta, departs from Singapore Changi on Sat, 2 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,317, select.
Singapore.$1,318 per passenger.Departing Tue, 10 Nov, returning Tue, 24 Nov.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Tue, 10 Nov, arriving in Singapore Changi.Inbound indirect flight with United, departs from Singapore Changi on Tue, 24 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,318, select.
Singapore.$1,318 per passenger.Departing Thu, 29 Oct, returning Thu, 5 Nov.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Thu, 29 Oct, arriving in Singapore Changi.Inbound indirect flight with United, departs from Singapore Changi on Thu, 5 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,318, select.
Singapore.$1,318 per passenger.Departing Wed, 7 Oct, returning Tue, 13 Oct.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Wed, 7 Oct, arriving in Singapore Changi.Inbound indirect flight with United, departs from Singapore Changi on Tue, 13 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,318, select.
Singapore.$1,327 per passenger.Departing Sat, 28 Nov, returning Sun, 6 Dec.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Seattle / Tacoma International on Sat, 28 Nov, arriving in Singapore Changi.Inbound indirect flight with Korean Air, departs from Singapore Changi on Sun, 6 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,327, select.
Singapore.$1,329 per passenger.Departing Sun, 12 Jul, returning Wed, 23 Sep.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Sun, 12 Jul, arriving in Singapore Changi.Inbound indirect flight with United, departs from Singapore Changi on Wed, 23 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,329, select.
Singapore.$1,418 per passenger.Departing Tue, 10 Nov, returning Tue, 24 Nov.Return flight with Singapore Airlines.Outbound direct flight with Singapore Airlines departs from Seattle / Tacoma International on Tue, 10 Nov, arriving in Singapore Changi.Inbound direct flight with Singapore Airlines departs from Singapore Changi on Tue, 24 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,418, select.
Singapore.$1,418 per passenger.Departing Thu, 29 Oct, returning Thu, 5 Nov.Return flight with Singapore Airlines.Outbound direct flight with Singapore Airlines departs from Seattle / Tacoma International on Thu, 29 Oct, arriving in Singapore Changi.Inbound direct flight with Singapore Airlines departs from Singapore Changi on Thu, 5 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,418, select.
Singapore.$1,478 per passenger.Departing Tue, 29 Sep, returning Sat, 31 Oct.Return flight with Singapore Airlines.Outbound direct flight with Singapore Airlines departs from Seattle / Tacoma International on Tue, 29 Sep, arriving in Singapore Changi.Inbound direct flight with Singapore Airlines departs from Singapore Changi on Sat, 31 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,478, select.

Find the cheapest month to fly from Seattle to Singapore

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Singapore flights are currently cheapest in September.
Mar
from $2,393
Apr
from $1,635
May
from $1,304
Jun
from $1,822
Jul
from $1,868
Aug
from $1,313
Sep
from $1,051
Oct
from $1,318
Nov
from $1,318
Dec
Find prices
Jan
from $1,067
Feb
Find prices

Direct flights from Seattle to Singapore

Alternative Seattle to Singapore routes

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

Seletar

14km from central Singapore
Closest
Search flights

Singapore Changi

18km from central Singapore
Cheapest
from $1,051
Search flights

Seattle to Singapore: Flight information

The things to know before you go.
Cheapest flight found$1,051
Cheapest month to flySeptember
Average flight time16 hrs, 48 mins
Most popular airlineSingapore Airlines
Average flights per week11

Finding cheap flights from Seattle to Singapore: Frequently asked questions

There are 2 airports in Singapore: Seletar and Singapore Changi.
The best price we found for a return flight from Seattle to Singapore is $1,051. 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.
16 hours and 48 minutes is the average flight time from Seattle to Singapore.
Singapore Airlines flies direct from Seattle to Singapore.
As of March 2026, there are 7 flights per week flying from Seattle to Singapore.
The cheapest month to fly from Seattle to Singapore is usually September.
If you're flying from Seattle, the cheapest airport near Singapore is Singapore Changi – which is 17.9 km away from the centre of Singapore. We've found flights into this airport from $1,051.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Singapore on Friday, 4 September 2026.
Yes – the average flight time is 16 hours and 48 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 Singapore 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 Singapore is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 27°C. May is typically the warmest month in Singapore, when it usually averages around 30°C. You can expect the least rain in February. The coldest month is December, with temperatures averaging 25°C. The rainiest month is December.
The cheapest airline that flies to Singapore is Asiana Airlines. And the cheapest airline that flies to Singapore Changi Airport is Singapore Airlines.

Flying from Seattle to Singapore: what you need to know

  • Get your holiday planning started by considering where you'll board your flight from Seattle to Singapore. Seattle-Tacoma International Airport (SEA) and Lake Union Sea Plane Base Airport (LKE) are the main airports in Seattle.

  • Changi International Airport (SIN) and Seletar Airport (XSP) are Singapore's major gateways.

  • The average time for a direct Seattle to Singapore flight is 16 hours 40 minutes.

  • The timezone in Singapore is UTC+8, which is 15 hours ahead of Seattle.

  • The most popular route for flights from Seattle to Singapore is from Seattle-Tacoma International Airport (SEA) to Changi International Airport (SIN). Take your pick of five weekly services between these two airports. If you want to be on your way as soon as possible, the earliest flight from SEA to SIN is the 08:45 Singapore Airlines option. If you prefer to leave later in the day, the last scheduled departure is at 10:15 with Singapore Airlines.

  • To ensure you make it on your Seattle to Singapore flight, leave plenty of time for things like baggage drop and finding your gate. Arriving two hours ahead of international departures and an hour before domestic flights is a good rule of thumb.

  • Travelling over a peak time such as July? Major public holidays and other high seasons can lead to longer lines at security. Play it safe and arrive up to four hours ahead of an international flight and two hours before a domestic departure.

How to find the cheapest flights from Seattle to Singapore

  • To secure cheap Seattle to Singapore flights, reserve your trip five months ahead of your departure.

  • The best month for finding cheap plane tickets from Seattle to Singapore is August. Use the 'Whole month' tool to compare prices, then select the dates that offer the lowest fares.

  • Spend less time searching for cheap flights from Seattle to Singapore by creating a Price Alert. You'll get an email or notification through the app when a new discounted fare appears.

  • Save on your Seattle to Singapore flight with the help of our filters. Select your ideal times, airlines and number of stops, then sort the results by 'Cheapest' for the best deals.

Flying from Seattle

Seattle-Tacoma International Airport (SEA)

  • You can catch a direct flight from Seattle to Singapore leaving from Seattle-Tacoma International Airport (SEA). Start your journey at SEA and touch down at Changi International Airport (SIN).

  • Singapore Airlines is a leading airline that offers direct Seattle to Singapore plane tickets leaving from SEA.

  • We make it simple to find a Seattle to Singapore flight with a stopover. To see your options leaving from Seattle-Tacoma International Airport, uncheck 'Direct flights only.' Then, choose a flight that has a stop long enough to see the sights of your chosen city. Major stopovers include:

    • Ninoy Aquino International Airport (MNL)

    • Taiwan Taoyuan International Airport (TPE)

    • Narita International Airport (NRT)

  • Travelling from central Seattle to SEA takes around 55 minutes on public transport. If you ride-share, drive or get a cab, you'll cover the 18 kilometres in 20 minutes or so, depending on traffic.

  • Want a hassle-free start to your journey? Stay near Seattle-Tacoma International Airport. Whether you've booked an early flight from Seattle to Singapore or want to avoid feeling rushed, these hotels are the answer:

  • Seattle-Tacoma International Airport maintains a solid on-time record, reducing the likelihood of delays. Departures from SEA arrive on schedule 81.27% of the time.

Arriving in Singapore

Changi International Airport (SIN)

  • The distance from Changi International Airport (SIN) to central Singapore is approximately 18 kilometres. It'll take you about 20 minutes to reach the centre driving.

  • When travelling on public transport, expect a journey time of about 1 hour.

  • The last thing you want is a lengthy journey to your hotel if you're getting in late on a flight from Seattle to Singapore. Reserve one of these accommodation options near SIN instead:

  • Pick up a Changi International Airport rental car and discover Singapore and beyond with your own wheels. Avis, Sixt and Green Motion are leading providers you can book with here.

  • Secure the lowest price by reserving your vehicle from Changi International Airport around two weeks ahead of your trip.

Seletar Airport (XSP)

  • After your flight from Seattle to Singapore has hit the runway, you can get to the city centre in around 25 minutes by car. Central Singapore is roughly 14 kilometres from Seletar Airport (XSP).

  • You can expect the trip to take about 1 hour 25 minutes on public transport.

  • You'll find some great places to call home for the night near XSP. Unwind after your Seattle to Singapore flight at any of these perfectly located options:

Best time to go to Singapore

  • February is the quietest month for flights from Seattle to Singapore, while April is the busiest. Figure out the best time to go to Singapore based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • When booking your Seattle to Singapore tickets, consider what kind of weather works for you. May is the warmest month in Singapore, with temperatures ranging from 25ºC to 31ºC.

  • Look for cheap flights from Seattle to Singapore in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 24ºC and 30ºC on average.

More about Singapore

  • When it comes to searching for somewhere to lay your head, you'll find the top stays in Singapore right here. Browse these hotels after locking in your flight from Seattle to Singapore:

  • All great holidays should include a little sightseeing. Marina Bay Sands, Gardens by the Bay and Universal Studios Singapore are essential stops on your Singapore itinerary.

More travel options

Plan the rest of your trip from Seattle to Singapore

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