C$379 Cheap Flights from Seattle / Tacoma International to Singapore

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Flight deals from Seattle / Tacoma International to Singapore

Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International to Singapore? Find the lowest prices on one-way and return tickets right here.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle / Tacoma International to Singapore flights are currently cheapest in January.

Direct flights from Seattle / Tacoma International to Singapore

Alternative Seattle / Tacoma International to Singapore routes

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

Seattle to Singapore: Flight information

The things to know before you go.
Cheapest flight foundC$379
Cheapest month to flyJanuary
Average flight time16 hrs, 47 mins
Most popular airlineSingapore Airlines
Average flights per week6

Finding cheap flights from Seattle / Tacoma International 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 / Tacoma International to Singapore is C$796. 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 / Tacoma International to Singapore.
Singapore Airlines flies direct from Seattle / Tacoma International to Singapore.
As of September 2025, there are 6 flights per week flying from Seattle / Tacoma International to Singapore.
The cheapest month to fly from Seattle / Tacoma International to Singapore is usually February.
If you're flying from Seattle / Tacoma International Airport, 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 C$796.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to Singapore on Thursday, February 12, 2026.
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 September, 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.
Currently, Singapore Airlines offers the cheapest flight tickets to Singapore.

Travelling from Seattle-Tacoma International Airport (SEA) to Singapore: what you need to know

  • Around 14 hours 28 minutes is how long you'll be travelling on a direct flight from Seattle-Tacoma International Airport to Singapore.

  • Singapore is 15 hours ahead of Seattle, where Seattle-Tacoma International Airport is located. Singapore operates on the UTC+8 timezone.

  • Seattle-Tacoma International Airport (SEA) to Changi International Airport (SIN) is the most traveled route, with 6 weekly flights to pick from. If you have things to do before heading off, the last flight from SEA to SIN is with Singapore Airlines at 10:15. Choose the first departure with Singapore Airlines at 08:45 if you want to get on your way earlier.

  • Leave plenty of time to get on your flight from SEA to Singapore. A good rule of thumb is to arrive two hours before international departures and an hour ahead for domestic flights.

  • Peak months like July or high seasons such as Thanksgiving and Christmas/New Year will mean longer queues at check-in and security. Play it safe and get to the airport even earlier. Arriving two hours before domestic flights and up four hours ahead of international flights is a smart idea.

  • You can book a nonstop flight from Seattle-Tacoma International Airport to Singapore that arrives at Changi International Airport (SIN).

  • Singapore Airlines is a leading airline that offers direct flights from Seattle-Tacoma International Airport to Singapore.

  • A stopover is the ideal opportunity to break up your trip — and maybe even explore a different city. When searching for flights from SEA to Singapore, deselect the 'Direct flights only' box to see where you can visit along the way. Some popular options include:

    • Taiwan Taoyuan International Airport (TPE)

    • Ninoy Aquino International Airport (MNL)

    • Narita International Airport (NRT)

  • You can visit Singapore for tourism purposes without a visa if you have a passport from United States. But before reserving your flight tickets from Seattle-Tacoma International Airport to Singapore, double-check for the newest rules and regulations. Visa rules are subject to change, and you may require some travel documents if your trip is for business or another reason.

  • The journey from central Seattle to SEA takes approximately 54 minutes by public transport. If you drive, ride-share or take a cab, you'll cover the 23 kilometres in 18 minutes or so, depending on traffic.

  • Looking for a handy hotel near SEA? If you're boarding an early flight from Seattle-Tacoma International Airport to Singapore, these stays will put you moments from check-in:

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

  • C$379 is the lowest price for a one-way ticket from Seattle-Tacoma International Airport to Singapore. A return flight starts at C$796. These prices may change based on demand and availability.

  • It's a good idea to book as early as possible if you're looking for cheap tickets from SEA to Singapore. That's because flight prices are based on demand, which tends to rise closer to the departure date.

  • If you're willing to be flexible with your travel plans, use the 'Whole month' search tool. It'll find the cheapest price in each month when searching for your ticket from Seattle-Tacoma International Airport to Singapore.

  • Sign into your online account or use the app to create a Price Alert. We'll get in touch straight away if there's a better deal on this route. It doesn't take long, and it'll save you the hassle of checking for cheap tickets from SEA to Singapore every day.

  • Play around with the filters to find your ideal trip. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Seattle-Tacoma International Airport to Singapore, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and journey duration.

Airports in Singapore

Changi International Airport (SIN)

  • Changi International Airport (SIN) is around 21 kilometres from the centre of Singapore. With a car rental or if you're catching a cab, the drive is about 21 minutes.

  • Getting to the centre on public transport will take you roughly 1 hour.

  • If you're arriving on a late flight from Seattle-Tacoma International Airport to Singapore, few things beat the convenience of staying close to the terminal. Collect your bags from the carousel and then be showered and sleeping soon after at one of these hotels near SIN:

Seletar Airport (XSP)

  • After your flight from Seattle-Tacoma International Airport to Singapore has arrived, you can get to the city centre in around 23 minutes by car. Central Singapore is approximately 19 kilometres from Seletar Airport (XSP).

  • Travelling by public transport will take about 1 hour and 24 minutes.

  • After your flight from SEA to Singapore, settle in at a hotel near XSP. These are some great accommodation options that'll help you sink into relaxation mode:

Best time to go to Singapore

  • August is the most popular month to hop on a flight from Seattle-Tacoma International Airport to Singapore while February is the quietest. To work out the ideal time to go to Singapore, consider the pace you prefer to travel at.

  • Before booking a flight from Seattle-Tacoma International Airport to Singapore, think about the kind of weather you enjoy. May is the warmest month in Singapore, with the temperature ranging from 25ºC to 31ºC.

  • Search for cheap flights from SEA to Singapore in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between 24ºC and 30ºC on average.

More about Singapore

  • Once you've booked your flight from Seattle-Tacoma International Airport to Singapore, think about where you'll stay in this city. Make one of these accommodation options your base for exploring Singapore:

  • Marina Bay Sands and Gardens by the Bay are just two of the top attractions to add to your Singapore travel itinerary. Continue your sightseeing adventures at Universal Studios Singapore.

Complete your Singapore trip with a car rental

  • Finding you a cheap flight from Seattle-Tacoma International Airport to Singapore isn't the only trick up our sleeve. Check out our car rentals in Singapore and explore on your own terms. We search for deals from trusted car rental providers and put them all in one place. Instantly compare rates and then book with no fees.

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