Travelling from Seattle-Tacoma International Airport (SEA) to Changi International Airport (SIN): what you need to know
The average length of a direct flight from Seattle-Tacoma International Airport to Changi International Airport is 16 hours 40 minutes.
Singapore's timezone is UTC+8, which makes Singapore 15 hours ahead of Seattle.
Take your pick of six weekly Seattle-Tacoma International Airport to Changi International Airport flights. The 08:45 departure with Singapore Airlines is the earliest you can take. Singapore Airlines operates the latest service of the day at 10:15.
To ensure you get on your SEA to SIN 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 the general travel rule.
During popular months like July, you'll want to get to the airport well in advance. Plan to arrive two hours before domestic departures and four hours ahead of an international flight when you fly during peak periods in general.
Jetting into Singapore (and then exploring more of Singapore!) is easy with Singapore Airlines. This popular airline offers direct flights from Seattle-Tacoma International Airport to Changi International Airport.
The majority of passengers choose to fly with Singapore Airlines on this route.
The carrier with the most consistent on-time arrival rate for SEA to SIN flights is Singapore Airlines.
Think about adding a stopover when booking your ticket from Seattle-Tacoma International Airport to Changi International Airport. Just uncheck 'Direct flights only' to break up your trip, or perhaps explore a new destination along the way. Check out these options between SEA and SIN:
Ninoy Aquino International Airport
Narita International Airport
Taiwan Taoyuan International Airport
How to find the cheapest flights from Seattle-Tacoma International Airport (SEA) to Changi International Airport (SIN)
Right now, $353 is the lowest price we've found for a one-way Seattle-Tacoma International Airport to Changi International Airport flight. The best price for a return ticket is $812. Remember that fares could change due to availability when booking.
Book nine months before flying. After looking at the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from SEA to SIN.
Schedule your trip for August. That's the cheapest month for flights from Seattle-Tacoma International Airport to Changi International Airport. If you're flexible with your dates, use the 'Whole month' tool to see the lowest airfare across each month.
Spend less time searching for cheap flights from SEA to SIN by setting up a Price Alert. We'll send you an email or notification on the app when a new discounted fare appears.
Tailor your trip using filters. Pick your preferred arrival and departure times, airlines and total journey duration. You can also sort your results by 'Cheapest,' 'Fastest' or 'Best' flights from Seattle-Tacoma International Airport to Changi International Airport.
Handy information about Seattle-Tacoma International Airport (SEA)
Seattle-Tacoma International Airport has a strong on-time performance, so flight disruptions are less likely. Departures from SEA arrive at their destination as scheduled 81.27% of the time.
To get to Seattle-Tacoma International Airport from central Seattle, it'll take about 20 minutes if you're planning to drive. Of course, this depends on traffic. It's approximately 23 kilometres from the airport to the city centre.
Catching public transport? Expect a journey time of around 55 minutes.
Get your journey off to a leisurely start by staying near SEA. Whether you have an early flight from Seattle-Tacoma International Airport to Changi International Airport or just don't want to be rushed, these stays have you covered:
Arriving at Changi International Airport (SIN)
Consider booking a hotel close to SIN if you're catching a late Seattle-Tacoma International Airport to Changi International Airport flight. Choose one of these accommodation options and avoid the hassle of a long transfer:
Get your adventure underway by picking up a Changi International Airport rental car. Grab a set of wheels from Avis, Sixt or Green Motion and explore beyond Singapore's usual tourist stops.
Reserving your vehicle from Changi International Airport around two weeks in advance gives you the best shot at securing a great deal.
Getting from Changi International Airport (SIN) to central Singapore
Changi International Airport to the centre of Singapore has a drive time of around 20 minutes. It's approximately 21 kilometres away.
If you're travelling on public transport, expect a journey of around 1 hour.
When to fly to Changi International Airport (SIN)
April is the busiest month for flights from Seattle-Tacoma International Airport to Changi International Airport. For smaller crowds, travel to Singapore in February.
Book your flight from Seattle-Tacoma International Airport to Changi International Airport for May if you'd like to visit Singapore during its warmest month. You can expect temperatures of between 25ºC (77ºF) and 31ºC (88ºF).
Search for cheap tickets from SEA to SIN in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between 24ºC (75ºF) and 30ºC (86ºF) on average.
