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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

Book the best Singapore fare with no extra fees

Flight deals from Seattle to Singapore

Looking for a cheap last-minute deal or the best return flight from Seattle to Singapore? Find the lowest prices on one-way and return tickets right here.
Singapore.R 6,322 per passenger.Departing Tue, 16 Sep.One-way flight with Singapore Airlines.Outbound direct flight with Singapore Airlines departs from Seattle / Tacoma International on Tue, 16 Sep, arriving in Singapore Changi.Price includes taxes and charges.From R 6,322, select.
Singapore.R 6,396 per passenger.Departing Fri, 22 Aug.One-way flight with Singapore Airlines.Outbound direct flight with Singapore Airlines departs from Seattle / Tacoma International on Fri, 22 Aug, arriving in Singapore Changi.Price includes taxes and charges.From R 6,396, select.
Singapore.R 7,913 per passenger.Departing Thu, 5 Feb.One-way flight with Singapore Airlines.Outbound direct flight with Singapore Airlines departs from Seattle / Tacoma International on Thu, 5 Feb, arriving in Singapore Changi.Price includes taxes and charges.From R 7,913, select.
Singapore.R 7,923 per passenger.Departing Thu, 23 Oct.One-way flight with Singapore Airlines.Outbound direct flight with Singapore Airlines departs from Seattle / Tacoma International on Thu, 23 Oct, arriving in Singapore Changi.Price includes taxes and charges.From R 7,923, select.
Singapore.R 8,003 per passenger.Departing Sat, 11 Apr.One-way flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Sat, 11 Apr, arriving in Singapore Changi.Price includes taxes and charges.From R 8,003, select.
Singapore.R 8,003 per passenger.Departing Fri, 11 Jul.One-way flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Fri, 11 Jul, arriving in Singapore Changi.Price includes taxes and charges.From R 8,003, select.
Singapore.R 8,013 per passenger.Departing Sun, 15 Mar.One-way flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Sun, 15 Mar, arriving in Singapore Changi.Price includes taxes and charges.From R 8,013, select.
Singapore.R 8,077 per passenger.Departing Sat, 15 Nov.One-way flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Sat, 15 Nov, arriving in Singapore Changi.Price includes taxes and charges.From R 8,077, 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.
May
from R 8,608
Jun
from R 10,097
Jul
from R 8,003
Aug
from R 6,396
Sep
from R 6,322
Oct
from R 7,923
Nov
from R 8,077
Dec
from R 10,039
Jan
from R 8,246
Feb
from R 7,913
Mar
from R 8,013
Apr
from R 8,003

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.

Seattle to Singapore: Flight information

The things to know before you go.
Cheapest flight foundR 6,322
Cheapest month to flySeptember
Average flight time16 hrs, 47 mins
Most popular airlineSingapore Airlines
Average flights per week6

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 R 12,451. 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 47 minutes is the average flight time from Seattle to Singapore.
Singapore Airlines flies direct from Seattle to Singapore.
As of May 2025, there are 6 flights per week flying from Seattle to Singapore.
The cheapest month to fly from Seattle to Singapore is usually May 2025.
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 R 12,451.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Singapore on Thursday, 18 September 2025.
Yes – the average flight time is 16 hours and 47 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 May, the average temperature is usually around 28°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 Air Canada. And the cheapest airline that flies to Singapore Changi Airport is Singapore Airlines.

Travelling from Seattle to Singapore: what you need to know

  • Start your holiday planning by considering where you'll catch 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.

  • Hop off your plane in Singapore at Changi International Airport (SIN) or Seletar Airport (XSP).

  • Around 16 hours 40 minutes is how long you'll be travelling on a direct Seattle to Singapore flight.

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

  • Seattle-Tacoma International Airport (SEA) to Changi International Airport (SIN) is the most popular route between these two cities. There are five flights a week to choose from. If you prefer a later start to the day, the last flight from Seattle to Singapore is with Singapore Airlines at 10:15. Choose the first SEA to SIN departure operated by Singapore Airlines at 08:45 to maximise your time in Singapore.

  • For stress-free travel, turn up at the airport two hours ahead of international flights and an hour before domestic departures. That way, you won't have to rush to catch your Seattle to Singapore flight.

  • Popular months like July or high seasons such as spring break and Christmas will mean bigger queues at check-in and security. Play it safe and get to the terminal even earlier. Arriving two hours before a domestic flight and four hours ahead of international departures is a smart move.

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 departing from Seattle-Tacoma International Airport (SEA). Start your trip at SEA and arrive at Changi International Airport (SIN).

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

  • Consider adding a stopover to possibly find a cheaper Seattle to Singapore flight. Just deselect 'Direct flights only' when browsing departures from Seattle-Tacoma International Airport. Take a break from travelling at one of these airports:

    • Ninoy Aquino International Airport (MNL)

    • Narita International Airport (NRT)

    • Taiwan Taoyuan International Airport (TPE)

  • Located around 18 kilometres from central Seattle, SEA can be reached in about 20 minutes by car, depending on traffic. The journey on public transport will take roughly 55 minutes.

  • Need a handy hotel close to Seattle-Tacoma International Airport? If you've booked an early flight from Seattle to Singapore, these stays will have you sleeping moments from your departure gate:

  • Seattle-Tacoma International Airport scores top marks for on-time performance. 81.27% of flights that take off from SEA arrive at their destination without delay.

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 around 20 minutes to get to the centre driving.

  • It typically takes 1 hour to get there when travelling by public transport.

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

  • Travel at your own speed with a Changi International Airport rental car. Pick up a set of wheels from Avis, Sixt or Green Motion and chase adventure across Singapore and beyond.

  • Lock in the best possible rate by reserving your vehicle from Changi International Airport about two weeks in advance of your trip.

Seletar Airport (XSP)

  • Seletar Airport (XSP) is about 14 kilometres from the centre of Singapore. Once you've hopped off your flight from Seattle to Singapore, it takes approximately 25 minutes to get to the heart of the city in a cab or ride-share.

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

  • Place the 'Do not disturb' sign on your door and unwind at a hotel near XSP. Here are a few options where you can settle in after your flight from Seattle to Singapore:

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 (77ºF) to 31ºC (88ºF).

  • 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 (75ºF) and 30ºC (86ºF) on average.

More about Singapore

  • Start your Singapore trip right by choosing the ideal place to stay. As soon as you've booked your flight from Seattle to Singapore, explore our selection of accommodation options including:

  • Every great adventure has to include some sightseeing. Marina Bay Sands, Gardens by the Bay and Universal Studios Singapore are attractions you won't want to skip in Singapore.

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.