Cheap Flights from Seattle / Tacoma International to Singapore

Compare Seattle / Tacoma International 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 / Tacoma International to Singapore

Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International Airport to Singapore? If you want to travel next month, return fares start from Rs250,932. 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 August.

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 foundRs100,450
Cheapest month to flyAugust
Average flight time16 hrs, 48 mins
Most popular airlineSingapore Airlines
Average flights per week7

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 Rs235,599. 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 / Tacoma International to Singapore.
Singapore Airlines flies direct from Seattle / Tacoma International to Singapore.
As of April 2026, there are 7 flights per week flying from Seattle / Tacoma International to Singapore.
The cheapest month to fly from Seattle / Tacoma International to Singapore is usually September.
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 Rs235,599.
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 Tuesday, 29 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 April, 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.
Currently, Singapore Airlines offers the cheapest flight tickets to Singapore.

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

  • Expect to be in the air for 14 hours 30 minutes. That's the average duration of a direct flight from Seattle-Tacoma International Airport to Singapore.

  • The timezone in Singapore is UTC+8. The city is 16 hours ahead of Seattle, where Seattle-Tacoma International Airport is located.

  • With five departures a week between the two airports, Seattle-Tacoma International Airport (SEA) to Singapore Changi Airport (SIN) is the busiest route. Board Singapore Airlines's 08:45 flight to get your trip from SEA to SIN underway.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to board your SEA to Singapore flight.

  • During popular months like July, it's a good idea to get to the airport earlier than usual. Plan to arrive two hours before a domestic departure and four hours ahead for an international flight whenever you're travelling during peak periods in general.

  • Start your trip at SEA and fly nonstop to Singapore Changi Airport (SIN). That's where you can expect to land when searching for Seattle-Tacoma International Airport to Singapore tickets.

  • Singapore Airlines is a well-known carrier that offers direct flights from Seattle-Tacoma International Airport to Singapore.

  • Stopovers are the ideal opportunity to take a break from travelling and possibly even visit a new city. When searching for plane tickets from SEA to Singapore, uncheck the 'Direct flights only' box to see where you can visit along the way. Consider one of these popular options:

    • Manila Ninoy Aquino International Airport (MNL)

    • Taiwan Taoyuan International Airport (TPE)

    • Tokyo Narita International Airport (NRT)

  • SEA is around 18 kilometres from central Seattle. If you're catching a taxi, driving or ride-sharing from the centre, it'll take 25 minutes or so to get there, depending on traffic conditions. If you're using public transport, expect the travel time to be around 35 minutes.

  • Want a relaxed start to your travels? Stay near SEA. Whether you've booked an early flight from Seattle-Tacoma International Airport to Singapore or don't want departure day to feel hectic, these hotels put convenience first:

  • 80% of flights departing from Seattle-Tacoma International Airport reach their destination according to schedule. With its strong on-time stats, delays are unlikely when taking off from SEA.

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

  • Rs100,450 is the cheapest price we've seen for a one-way Seattle-Tacoma International Airport to Singapore flight. A round-trip ticket right now is Rs235,599. Depending on the availability and when you book, these fares may change.

  • Score cheap flights from SEA to Singapore by booking three months ahead. According to our research, that's the best time for finding the biggest deals.

  • The best month for finding cheap Seattle-Tacoma International Airport to Singapore tickets is August. Use the 'Whole month' tool to compare all available prices, then choose the dates that offer the biggest savings.

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

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

Airports in Singapore

Singapore Changi Airport (SIN)

  • The distance from Singapore Changi Airport (SIN) to central Singapore is roughly 19 kilometres. It'll take you about 25 minutes to get to the centre driving.

  • It typically takes 40 minutes to get there using public transport.

  • The last thing you want is a long journey to your hotel if you're landing late on a flight from Seattle-Tacoma International Airport to Singapore. Reserve one of these accommodation options near SIN instead:

  • Get the best deal by booking your vehicle from Singapore Changi Airport around two weeks in advance of your flight from SEA to Singapore.

Seletar Airport (XSP)

  • If you're staying in central Singapore (or just want to explore straight away), the city is around 14 kilometres from Seletar Airport (XSP). Keep an eye out for any information desks to help direct you after disembarking your flight from Seattle-Tacoma International Airport to Singapore.

  • There are some great places to drop your things at near XSP. Kick back and get cosy after your SEA to Singapore flight at any of these well-located options:

Best time to go to Singapore

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

  • Before locking in your Seattle-Tacoma International Airport to Singapore plane ticket, think about what kind of weather works for you. May is the warmest month in Singapore, with temperatures ranging from 25ºC to 31ºC.

  • Look for cheap tickets from SEA to Singapore in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 24ºC and 30ºC on average.

More about Singapore

  • Once you've booked your flight from Seattle-Tacoma International Airport to Singapore, choose a hotel that combines comfort with a great location. Make one of these accommodation options your base for exploring Singapore:

  • There are so many things to discover in this city it can be hard to work out where to begin. Marina Bay Sands Hotel Infinity Pool, Marina Bay Sands and Gardens by the Bay are leading attractions which should be on any good Singapore itinerary.

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