Cheap flights from Singapore to Seattle from S$ 521
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21-1. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — SEA
24 Jan — 31 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Singapore Changi to Seattle/Tacoma Intl are usually found in October or September, booked 25 days in advance, depart on a Wednesday or Monday and return on a Monday
Cheap flight deals from Singapore to Seattle
Enter your travel dates to find the best prices.
Cheapest flights from Singapore to Seattle
Explore the most affordable flight options available from Singapore to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 December 2025.
Tue 30-1208:15SIN - SEA
1 stop17h 35mJapan Airlines
Mon 30-1111:50SEA - SIN
1 stop21h 00mJapan Airlines
Deal found 23-12S$ 1,575
Tue 30-1213:15SIN - SEA
1 stop20h 55mEVA Air
Thu 26-1100:10SEA - SIN
1 stop22h 20mEVA Air
Deal found 23-12S$ 1,611
Tue 30-1208:15SIN - SEA
2 stops41h 02mJapan Airlines
Tue 1-1211:50SEA - SIN
1 stop21h 00mJapan Airlines
Deal found 23-12S$ 1,681
Tue 30-1208:15SIN - SEA
2 stops41h 02mJapan Airlines
Thu 26-1111:50SEA - SIN
1 stop21h 00mJapan Airlines
Deal found 23-12S$ 1,781
Tue 30-1208:15SIN - SEA
2 stops41h 02mJapan Airlines
Sat 28-1111:50SEA - SIN
1 stop21h 00mJapan Airlines
Deal found 23-12S$ 2,159
Wed 31-1215:45SIN - SEA
1 stop18h 25mEVA Air
Tue 24-1100:10SEA - SIN
1 stop19h 55mEVA Air
Deal found 23-12S$ 2,183
Wed 31-1208:15SIN - SEA
1 stop17h 35mJapan Airlines
Mon 30-1111:50SEA - SIN
1 stop21h 00mJapan Airlines
Deal found 23-12S$ 2,192
Wed 31-1208:15SIN - SEA
2 stops23h 24mJapan Airlines
Sun 29-1111:50SEA - SIN
1 stop21h 00mJapan Airlines
Deal found 23-12S$ 2,672
Wed 31-1208:15SIN - SEA
2 stops23h 24mJapan Airlines
Thu 26-1111:50SEA - SIN
1 stop21h 00mJapan Airlines
Deal found 23-12S$ 2,771
Tue 30-1223:05SIN - SEA
2 stops38h 59mBritish Airways
Tue 1-1213:25SEA - SIN
2 stops39h 10mBritish Airways
Deal found 23-12S$ 2,822
Wed 31-1222:50SIN - SEA
1 stop28h 35mMultiple Airlines
Sat 28-1113:40SEA - SIN
2 stops34h 35mMultiple Airlines
Deal found 23-12S$ 2,895
Tue 30-1201:40SIN - SEA
2 stops29h 18mKLM
Sat 28-1113:40SEA - SIN
2 stops34h 35mKLM
Deal found 23-12S$ 2,950
Best flights from Singapore to Seattle
Discover carefully curated flight deals from Singapore to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 December 2025.
Sat 21-314:25SIN - SEA
1 stop19h 45mChina Airlines
Mon 30-301:15SEA - SIN
1 stop20h 20mChina Airlines
Deal found 23-12S$ 983
Fri 6-310:10SIN - SEA
1 stop29h 18mUnited Airlines
Tue 10-305:00SEA - SIN
1 stop35h 00mUnited Airlines
Deal found 22-12S$ 995
Sun 8-222:30SIN - SEA
1 stop30h 50mDelta
Sun 15-211:25SEA - SIN
1 stop20h 45mDelta
Deal found 25-12S$ 1,007
Wed 4-310:40SIN - SEA
1 stop38h 20mKorean Air
Tue 31-312:50SEA - SIN
1 stop19h 50mKorean Air
Deal found 24-12S$ 1,010
Sun 8-214:25SIN - SEA
1 stop19h 45mMultiple Airlines
Sun 15-208:45SEA - SIN
Nonstop17h 00mMultiple Airlines
Deal found 25-12S$ 1,036
Mon 13-414:00SIN - SEA
1 stop17h 10mSTARLUX Airlines
Wed 13-501:15SEA - SIN
1 stop20h 25mSTARLUX Airlines
Deal found 23-12S$ 1,081
Wed 25-210:10SIN - SEA
1 stop41h 09mUnited Airlines
Thu 12-309:20SEA - SIN
1 stop30h 40mUnited Airlines
Deal found 24-12S$ 998
Thu 26-214:25SIN - SEA
1 stop19h 45mChina Airlines
Thu 12-301:10SEA - SIN
1 stop20h 55mChina Airlines
Deal found 25-12S$ 1,015
Thu 26-214:25SIN - SEA
1 stop19h 45mMultiple Airlines
Fri 13-309:45SEA - SIN
Nonstop17h 00mMultiple Airlines
Deal found 25-12S$ 1,097
Direct flights from Singapore to Seattle
Explore direct flight options from Singapore to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 25 December 2025.
Fri 6-209:00SIN - SEA
Nonstop14h 10mSingapore Airlines
Fri 20-208:45SEA - SIN
Nonstop17h 00mSingapore Airlines
Deal found 24-12S$ 1,161
Sat 21-309:00SIN - SEA
Nonstop14h 10mSingapore Airlines
Tue 31-310:15SEA - SIN
Nonstop16h 20mSingapore Airlines
Deal found 24-12S$ 1,163
Fri 13-209:00SIN - SEA
Nonstop14h 10mSingapore Airlines
Fri 20-208:45SEA - SIN
Nonstop17h 00mSingapore Airlines
Deal found 24-12S$ 1,409
Thu 26-209:00SIN - SEA
Nonstop14h 10mSingapore Airlines
Fri 13-309:45SEA - SIN
Nonstop17h 00mSingapore Airlines
Deal found 25-12S$ 1,441
Sun 8-209:00SIN - SEA
Nonstop14h 10mSingapore Airlines
Sun 15-208:45SEA - SIN
Nonstop17h 00mSingapore Airlines
Deal found 25-12S$ 1,676
Tue 20-109:00SIN - SEA
Nonstop14h 10mSingapore Airlines
Tue 27-108:45SEA - SIN
Nonstop17h 00mSingapore Airlines
Deal found 22-12S$ 1,726
Fri 6-309:00SIN - SEA
Nonstop14h 10mSingapore Airlines
Tue 10-309:45SEA - SIN
Nonstop17h 00mSingapore Airlines
Deal found 22-12S$ 2,401
Sat 7-209:00SIN - SEA
Nonstop14h 10mSingapore Airlines
Sat 14-208:45SEA - SIN
Nonstop17h 00mSingapore Airlines
Deal found 24-12S$ 3,109
Last-minute flights from Singapore to Seattle
Discover last-minute flight deals from Singapore to Seattle. Data last updated 25 December 2025 and is based on user searches.
Sun 11-108:50SIN - SEA
1 stop29h 16mAir Canada
Tue 27-120:00SEA - SIN
1 stop19h 00mAir Canada
Deal found 24-12S$ 1,200
Sun 11-114:25SIN - SEA
1 stop19h 45mChina Airlines
Sat 16-501:15SEA - SIN
1 stop20h 20mChina Airlines
Deal found 24-12S$ 1,363
Tue 13-115:45SIN - SEA
1 stop18h 25mEVA Air
Sun 25-100:10SEA - SIN
1 stop19h 55mEVA Air
Deal found 23-12S$ 1,097
Tue 13-122:20SIN - SEA
2 stops38h 55mUnited Airlines
Mon 26-119:30SEA - SIN
1 stop32h 45mUnited Airlines
Deal found 23-12S$ 1,110
Tue 13-122:30SIN - SEA
2 stops38h 02mDelta
Mon 26-117:40SEA - SIN
2 stops38h 30mDelta
Deal found 23-12S$ 1,134
Mon 19-102:00SIN - SEA
1 stop32h 10mMultiple Airlines
Tue 27-108:45SEA - SIN
Nonstop17h 00mMultiple Airlines
Deal found 22-12S$ 1,219
Tue 20-110:10SIN - SEA
1 stop21h 34mUnited Airlines
Tue 27-109:25SEA - SIN
1 stop42h 50mUnited Airlines
Deal found 22-12S$ 995
Tue 20-110:45SIN - SEA
2 stops26h 27mANA
Tue 27-106:18SEA - SIN
2 stops32h 37mANA
Deal found 22-12S$ 1,197
One-way flights from Singapore to Seattle
Search for one-way flight options from Singapore to Seattle. Find affordable one-way fares based on user searches. Data last updated 25 December 2025.
Wed 21-116:30SIN - SEA
2 stops31h 35mHainan Airlines
Deal found 22-12S$ 521
Wed 28-116:30SIN - SEA
2 stops31h 35mHainan Airlines
Deal found 24-12S$ 547
Wed 1-412:05SIN - SEA
2 stops36h 00mHainan Airlines
Deal found 25-12S$ 577
Wed 4-316:30SIN - SEA
2 stops31h 35mHainan Airlines
Deal found 24-12S$ 586
Tue 17-303:00SIN - SEA
3 stops53h 09mMultiple Airlines
Deal found 22-12S$ 606
Thu 5-214:25SIN - SEA
1 stop19h 45mChina Airlines
Deal found 24-12S$ 611
Sat 24-114:25SIN - SEA
1 stop19h 45mChina Airlines
Deal found 25-12S$ 613
Mon 19-121:30SIN - SEA
2 stops33h 35mMultiple Airlines
Deal found 23-12S$ 622
Thu 22-121:30SIN - SEA
2 stops33h 35mMultiple Airlines
Deal found 23-12S$ 624
Sun 8-214:25SIN - SEA
1 stop19h 45mChina Airlines
Deal found 25-12S$ 628
Find flight deals from Singapore to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Singapore (SIN) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 25 December 2025.
Customise your flight search to find flights from Singapore to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 25 December 2025.
Use the filters below to find and compare flights from Singapore to Seattle that are best for you.
Fly from
Singapore
Fly to
Seattle
Route
Depart
Return
Price
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Sat 21-3
14:25-19:10
1 stop19h 45m
Seattle/Tacoma Intl
Mon 30-3
01:15-12:35
1 stop20h 20m
S$ 983
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Fri 6-3
10:10-23:28
1 stop29h 18m
Seattle/Tacoma Intl
Tue 10-3
05:00-07:00
1 stop35h 00m
S$ 995
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Wed 25-2
10:10-11:19
1 stop41h 09m
Seattle/Tacoma Intl
Thu 12-3
09:20-07:00
1 stop30h 40m
S$ 998
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Sun 8-2
22:30-13:20
1 stop30h 50m
Seattle/Tacoma Intl
Sun 15-2
11:25-00:10
1 stop20h 45m
S$ 1,007
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Wed 4-3
10:40-09:00
1 stop38h 20m
Seattle/Tacoma Intl
Tue 31-3
12:50-23:40
1 stop19h 50m
S$ 1,010
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Thu 26-2
14:25-18:10
1 stop19h 45m
Seattle/Tacoma Intl
Thu 12-3
01:10-13:05
1 stop20h 55m
S$ 1,015
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Sun 8-2
14:25-18:10
1 stop19h 45m
Seattle/Tacoma Intl
Sun 15-2
08:45-17:45
Nonstop17h 00m
S$ 1,036
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Mon 13-4
14:00-16:10
1 stop17h 10m
Seattle/Tacoma Intl
Wed 13-5
01:15-12:40
1 stop20h 25m
S$ 1,081
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Thu 26-2
14:25-18:10
1 stop19h 45m
Seattle/Tacoma Intl
Fri 13-3
09:45-17:45
Nonstop17h 00m
S$ 1,097
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Sat 23-5
13:45-19:15
1 stop20h 30m
S$ 611
Flights are sorted by cheapest return flights first.
Deals found on 23-12
Showing 1-10 of 20 results
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Best time to book a flight from Singapore to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Singapore with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Singapore to Seattle
Prices
Delays
More
How far ahead should I book a flight from Singapore to Seattle?
Use this chart to determine the optimal time to book a return flight from Singapore to Seattle. Price data was last updated on 19 December 2025.
The price you pay for your flight from Singapore to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 25 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Singapore to Seattle?
Currently, October is the cheapest month in which you can book a flight from Singapore to Seattle (average of S$ 760). Flying from Singapore to Seattle in January is currently the most expensive (average of S$ 1,143). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SIN to SEA?
Find hourly flight availability from Singapore to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 December 2025.
One of the essential ways to save on airfare from Singapore to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 26% on airfare.
What is the cheapest day to fly from Singapore to Seattle?
Use this chart to determine the cheapest time to fly return from Singapore to Seattle. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their Singapore to Seattle flight should consider departing on Friday at midday when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Singapore to Seattle delayed?
About 21% of weekly flights between Singapore and Seattle have experienced delays in the past year, with the average delay time being 99 minutes.
What is the most punctual flight time for Singapore to Seattle flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Friday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Singapore to Seattle flights?
Over the past year, Singapore Airlines have had the lowest number of delays on this route, with just 21% of flights being delayed.
What’s the top stopover airport for flights from Singapore to Seattle?
Share of one-stop return flights from Singapore to Seattle chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Taipei City (TPE) – chosen by Cheapflights users on 60% of one-stop itineraries from Singapore to Seattle on Cheapflights.
What’s the cheapest stopover airport for flights from Singapore to Seattle?
Average return fare for one-stop flights from Singapore to Seattle, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
San Francisco (SFO) is the most affordable one-stop option, with an average return flight price of S$ 1,096.
What’s the fastest stopover option from Singapore to Seattle?
Shortest average travel time for one-stop one-way flights from Singapore to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Tokyo (NRT) have the shortest average one-way travel time for one-stop routes: 17h 26m.
Which airport typically offers the quickest stopover for flights from Singapore to Seattle?
Average stopover duration for one-stop one-way flights from Singapore to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Tokyo (NRT) offer the fastest connection on this route, with an average stopover time of 2h 07m.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 25 December 2025.
Get a feel of what it's like to fly with STARLUX Airlines, EVA Air, andChina Airlines from Singapore to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Starlux Airlines was amazing. No complaints on anything with them
Related info for your journey
Find useful and relevant information for your journey from Singapore to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How popular is this Singapore to Seattle flight route?
Flights from Singapore Changi to Seattle/Tacoma Intl have been viewed 108 times in the past calendar month.
How long is the flight from Singapore to Seattle?
There are many flights that can get you from Singapore to Seattle in 19h 45m. Fly via China Airlines or United Airlines to get the fastest option. There are 12970 km between Singapore and Seattle. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Singapore to Seattle round-trip?
Flying on United Airlines is currently your cheapest option to Seattle, with prices starting at S$ 831. Additional round-trip tickets that might be worth considering are offered by STARLUX Airlines and EVA Air, with the lowest prices starting at S$ 953 and S$ 955, respectively. You may be able to fly from Singapore to Seattle for 25% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Singapore to Seattle one-way?
To fly one-way, consider booking your trip with Singapore Airlines, which is currently one of the cheapest options available, starting at S$ 503. United Airlines flights start at S$ 560 while deals on STARLUX Airlines start at S$ 606 one-way.
Can I find deals for flights from Singapore to Seattle that include hotel bookings?
Yes. In addition to deals on Singapore to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Singapore to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Singapore to Seattle.
Can I find deals for business class flights from Singapore to Seattle?
Yes. Cheapflights offers flight deals from Singapore to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Singapore to Seattle?
Currently, October is the cheapest month in which you can book a flight from Singapore to Seattle (average of S$ 760). Flying from Singapore to Seattle in January is currently the most expensive (average of S$ 1,143). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
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Fly from Singapore to Seattle on these airlines
Choose from the following airlines for your flight from Singapore to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 25 December 2025.
Discover the top 6 airlines that operate flights from Singapore to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 25 December 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Singapore to Seattle?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from Singapore today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Singapore to Seattle?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Singapore to Seattle for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Singapore to Seattle with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Singapore to Seattle flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Singapore to Seattle become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Singapore today and book when prices fit your budget.
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