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Cheap Flights from Seattle to Singapore Changi

Compare Seattle to Singapore Changi flight deals

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

Book the best Singapore Changi fare with no extra fees

Flight deals from Seattle to Singapore Changi Airport

Looking for a cheap last-minute deal or the best return flight from Seattle to Singapore Changi Airport? If you want to travel next month, return fares start from $1,325. Find the lowest prices on one-way and return tickets right here.
Singapore.$891 per passenger.Departing Thu, 3 Sep, returning Sat, 12 Sep.Return flight with Singapore Airlines.Outbound direct flight with Singapore Airlines departs from Seattle / Tacoma International on Thu, 3 Sep, arriving in Singapore Changi.Inbound direct flight with Singapore Airlines departs from Singapore Changi on Sat, 12 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $891, select.
Singapore.$1,045 per passenger.Departing Fri, 13 Nov, returning Mon, 16 Nov.Return flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Fri, 13 Nov, arriving in Singapore Changi.Inbound indirect flight with Asiana Airlines, departs from Singapore Changi on Mon, 16 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,045, select.
Singapore.$1,054 per passenger.Departing Tue, 18 Aug, returning Thu, 3 Sep.Return flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Tue, 18 Aug, arriving in Singapore Changi.Inbound indirect flight with Asiana Airlines, departs from Singapore Changi on Thu, 3 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,054, select.
Singapore.$1,068 per passenger.Departing Mon, 18 Jan, returning Wed, 24 Feb.Return flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Mon, 18 Jan, arriving in Singapore Changi.Inbound indirect flight with Asiana Airlines, departs from Singapore Changi on Wed, 24 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,068, select.
Singapore.$1,070 per passenger.Departing Wed, 30 Dec, returning Sun, 24 Jan.Return flight with Asiana Airlines.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Wed, 30 Dec, arriving in Singapore Changi.Inbound indirect flight with Asiana Airlines, departs from Singapore Changi on Sun, 24 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,070, 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.$1,299 per passenger.Departing Fri, 1 May, returning Tue, 5 May.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Fri, 1 May, arriving in Singapore Changi.Inbound indirect flight with United, departs from Singapore Changi on Tue, 5 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,299, select.
Singapore.$1,308 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 $1,308, select.
Singapore.$1,322 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 $1,322, select.
Singapore.$1,324 per passenger.Departing Sun, 26 Apr, returning Tue, 12 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Sun, 26 Apr, arriving in Singapore Changi.Inbound indirect flight with Delta, departs from Singapore Changi on Tue, 12 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,324, select.
Singapore.$1,324 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 $1,324, select.
Singapore.$1,325 per passenger.Departing Thu, 16 Apr, returning Thu, 23 Apr.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Seattle / Tacoma International on Thu, 16 Apr, arriving in Singapore Changi.Inbound indirect flight with Korean Air, departs from Singapore Changi on Thu, 23 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,325, select.
Singapore.$1,326 per passenger.Departing Thu, 14 May, returning Thu, 4 Jun.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Thu, 14 May, arriving in Singapore Changi.Inbound indirect flight with United, departs from Singapore Changi on Thu, 4 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,326, select.
Singapore.$1,382 per passenger.Departing Fri, 16 Oct, returning Fri, 23 Oct.Return flight with ANA (All Nippon Airways).Outbound indirect flight with ANA (All Nippon Airways), departs from Seattle / Tacoma International on Fri, 16 Oct, arriving in Singapore Changi.Inbound indirect flight with ANA (All Nippon Airways), departs from Singapore Changi on Fri, 23 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,382, select.
Singapore.$1,382 per passenger.Departing Sat, 13 Feb, returning Sat, 20 Feb.Return flight with ANA (All Nippon Airways).Outbound indirect flight with ANA (All Nippon Airways), departs from Seattle / Tacoma International on Sat, 13 Feb, arriving in Singapore Changi.Inbound indirect flight with ANA (All Nippon Airways), departs from Singapore Changi on Sat, 20 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,382, select.
Singapore.$1,425 per passenger.Departing Tue, 10 Nov, returning Tue, 17 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, 17 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,425, select.

Find the cheapest month to fly from Seattle to Singapore Changi

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Singapore Changi flights are currently cheapest in September.
Mar
from $2,384
Apr
from $1,325
May
from $1,299
Jun
from $1,815
Jul
from $1,865
Aug
from $1,308
Sep
from $891
Oct
from $1,382
Nov
from $1,045
Dec
Find prices
Jan
Find prices
Feb
from $1,382

Direct flights from Seattle to Singapore Changi

Seattle to Singapore Changi: Alternative routes

Compare routes from Seattle to Singapore below. You may find an airport to fly into that's cheaper, faster, or easier than Singapore Changi.

Seletar

14km from central Singapore
Closest
Search flights

Singapore Changi

18km from central Singapore
Cheapest
from $891
Search flights

Seattle to Singapore: Flight information

The things to know before you go.
Cheapest flight found$891
Cheapest month to flySeptember
Average flight time16 hrs, 47 mins
Most popular airlineSingapore Airlines
Average flights per week7

Finding cheap flights from Seattle to Singapore Changi: Frequently asked questions

The best price we found for a return flight from Seattle to Singapore Changi is $891. 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 Changi.
Singapore Airlines flies direct from Seattle to Singapore Changi.
As of March 2026, there are 7 flights per week flying from Seattle to Singapore Changi.
The cheapest month to fly from Seattle to Singapore Changi is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Singapore Changi Airport on Thursday, 3 September 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 Changi 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.
The cheapest airline that flies to Singapore Changi is Singapore Airlines .

Flying from Seattle to Singapore Changi Airport (SIN): What you need to know

  • Planning your trip begins with working out where you'll fly out of in Seattle. Seattle-Tacoma International Airport (SEA) is the city's main airport, so explore your options for reserving a flight from Seattle to Singapore Changi Airport (SIN) leaving from here.

  • 16 hours 35 minutes is the average journey time for a direct Seattle to Singapore Changi Airport flight.

  • The timezone in Singapore is UTC+8, which is 16 hours ahead of Seattle. Singapore Changi Airport is located in Singapore.

  • The most popular route is from Seattle-Tacoma International Airport (SEA) to Singapore Changi Airport (SIN). There are 5 direct services each week. Singapore Airlines operates a 8:45am departure between SEA and SIN.

  • Give yourself enough time to catch your flight from Seattle to SIN. As a general rule, turn up at least two hours before international departures and an hour ahead for domestic flights.

  • Flying during a peak month like July? Popular periods (like Thanksgiving, Christmas/New Year and spring break) can add another hour at security. Be extra cautious and arrive up to four hours ahead of an international flight and two hours before a domestic departure.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • You can jump on a direct flight from Seattle to Singapore Changi Airport (SIN) out of Seattle-Tacoma International Airport (SEA).

  • When leaving from SEA, you can catch a direct flight from Seattle to Singapore Changi Airport with Singapore Airlines.

  • Singapore Airlines is the airline most travellers choose for flights from SEA to SIN.

  • The carrier with the most consistent on-time arrival rate on this route is Singapore Airlines.

  • Think about adding a stopover to find cheap flights from Seattle to SIN. Just deselect 'Direct flights only' when browsing departures from Seattle-Tacoma International Airport (SEA). Break the trip up (and maybe score a better deal) by stopping at one of these airports:

    • Manila Ninoy Aquino International Airport (MNL)

    • Taiwan Taoyuan International Airport (TPE)

    • Tokyo Narita International Airport (NRT)

  • The journey from central Seattle to SEA takes around 35 minutes on public transport. If you drive, ride-share or take a taxi, you'll cover the 23 kilometres in 25 minutes or so, depending on traffic.

  • Searching for a comfortable hotel near Seattle-Tacoma International Airport? If you've booked an early flight from Seattle to Singapore Changi Airport, these stays will have you sleeping conveniently close to check-in:

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

Seattle Paine Field International Airport (PAE)

  • Using public transport, you can travel from central Seattle to PAE in around 1 hour 30 minutes. The airport is roughly 40 kilometres away, and making the trip by car takes approximately 40 minutes.

  • Want to treat yourself to an extra night away before catching your Seattle to SIN flight? Unwind in a hotel near Seattle Paine Field International Airport before your holiday officially begins. These stays have a room with your name on it:

  • Flights from Seattle Paine Field International Airport have a track record for punctuality, with 80% of them touching down within the expected time frame.

About Singapore Changi Airport (SIN)

  • Have a late flight from Seattle to Singapore Changi Airport? Don't let your travel day stretch into tomorrow. Stay at one of these hotels near SIN and hit the pillow fast:

  • Lock in the best rate by reserving your vehicle around two weeks ahead of your Seattle to Singapore Changi Airport flight.

Getting from Singapore Changi Airport (SIN) to central Singapore

  • Singapore Changi Airport is around 19 kilometres from the centre of Singapore. It takes around 25 minutes or so to get to the city by car.

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

How to find the cheapest flights from Seattle to Singapore Changi Airport (SIN)

  • $520 is the best price for a one-way ticket from Seattle to Singapore Changi Airport. A return flight starts at $891. These prices may change based on demand.

  • Snap up cheap flights from Seattle to SIN by booking three months ahead. Based on our research, that's the ideal time frame for finding a bargain.

  • Organise your trip for August. That's the best month for landing the biggest deals on Seattle to Singapore Changi Airport tickets. If you're open to different travel dates, use the 'Whole month' tool to find the lowest price across every month.

  • You don't need to check back in every day to find out if prices have dropped when you create a Price Alert. We'll let you know when a better deal is available on plane tickets from Seattle to SIN.

  • Chase down a great fare on a flight from Seattle to Singapore Changi Airport with the help of the filters. Pick your ideal arrival and departure times, airlines and number of stops. You can also sort your results by 'Cheapest,' 'Fastest' or 'Best.'

The best time to fly from Seattle to Singapore Changi Airport (SIN)

  • It's time to work out your travel dates for your flight from Seattle to Singapore Changi Airport (SIN). February is the most popular month to visit Singapore. If a slower pace sounds more appealing, go in December.

  • Lock in a Seattle to SIN plane ticket departing in May if you want to visit the city during its warmest month. You can expect temperatures in Singapore to range from 25ºC to 31ºC.

  • January sees temperatures of between 24ºC and 30ºC. Search for cheap tickets from Seattle to Singapore Changi Airport around that time if you'd rather travel in cooler conditions.

More about Singapore

  • Start your Singapore trip off on the right foot by choosing the perfect place to stay. As soon as you've booked your flight from Seattle to Singapore Changi Airport, explore our range of hotels including:

  • Your Singapore trip should come with a side of sightseeing. Top attractions worth exploring include Marina Bay Sands, Marina Bay Sands Hotel Infinity Pool and Gardens by the Bay.

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.