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$327+ Cheap flights from Seattle (SEA) to Singapore (SIN)

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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SIN
Dec 28 — Jan 41
Sat 12/28
Sat 1/4
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Singapore Changi are usually found in November or October, booked 78 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from Seattle to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Singapore (SIN). 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 December 23, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$744
(oojo)

One-way from

$327
(FlightHub)

Popular in

December

Cheapest in

November

Average price

$1,730
Provider with most accurate pricing for Seattle/Tacoma Intl-Singapore Changi flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Singapore Changi flights.
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From Seattle/Tacoma Intl to Singapore Changi
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One-way flight from Seattle/Tacoma Intl to Singapore Changi
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High demand for flights, 4% potential price rise
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Best time to find cheap flights, 4% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Seattle to Singapore

Cheapest flights from Seattle to Singapore
Explore the most affordable flight options available from Seattle to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2024.

This Gurufare deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3112:45 pmSEA - SIN
1 stop41h 10mAsiana Airlines
Mon 1/2711:10 pmSIN - SEA
1 stop27h 45mAsiana Airlines
Deal found 12/22$915
This United deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:00 amSEA - SIN
1 stop23h 15mUnited Airlines
Mon 1/2710:10 amSIN - SEA
2 stops28h 20mUnited Airlines
Deal found 12/22$944
This Cheapflightsfares deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/314:05 pmSEA - SIN
2 stops34h 30mQatar Airways
Sun 1/263:15 amSIN - SEA
1 stop24h 25mQatar Airways
Deal found 12/22$1,261
This oojo deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:54 pmSEA - SIN
2 stops26h 01mCathay Pacific
Mon 1/272:05 pmSIN - SEA
3 stops35h 10mCathay Pacific
Deal found 12/22$1,561
This Ovago deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2610:00 amSEA - SIN
2 stops33h 25mHainan Airlines
Wed 1/112:15 pmSIN - SEA
1 stop35h 45mHainan Airlines
Deal found 12/21$1,885
This ScholarTrip deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/318:40 amSEA - SIN
Nonstop17h 00mSingapore Airlines
Mon 1/279:15 amSIN - SEA
1 stop19h 03mSingapore Airlines
Deal found 12/22$1,907
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2612:10 amSEA - SIN
2 stops42h 05mMultiple Airlines
Tue 12/318:15 amSIN - SEA
1 stop17h 35mMultiple Airlines
Deal found 12/21$1,917
This Delta deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2410:40 amSEA - SIN
1 stop21h 30mDelta
Fri 12/271:30 amSIN - SEA
1 stop27h 43mDelta
Deal found 12/21$1,920
This oojo deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3012:10 amSEA - SIN
1 stop32h 30mChina Airlines
Sun 1/262:00 amSIN - SEA
1 stop32h 15mChina Airlines
Deal found 12/22$2,127
This Justfly.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2510:35 amSEA - SIN
1 stop29h 20mAir Canada
Tue 12/3110:00 amSIN - SEA
2 stops27h 20mAir Canada
Deal found 12/21$2,178
This KLM deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/262:13 pmSEA - SIN
1 stop34h 02mKLM
Sat 12/289:20 pmSIN - SEA
2 stops30h 32mKLM
Deal found 12/21$2,444
This Ovago deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2212:05 amSEA - SIN
1 stop21h 20mSTARLUX Airlines
Wed 1/12:45 pmSIN - SEA
1 stop16h 20mSTARLUX Airlines
Deal found 12/21$2,522

Find flights from Seattle to Singapore within your budget

Customize your flight search to find flights from Seattle to Singapore 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 2,558,603 searches. Data last updated December 23, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Tue 1/21

12:45 pm-12:35 am

1 stop19h 50m

Singapore Changi

Mon 2/3

1:55 am-10:55 am

1 stop25h 00m

$744

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 2/5

11:00 am-5:00 am

1 stop26h 00m

Singapore Changi

Wed 2/12

10:30 pm-9:00 am

1 stop26h 30m

$750

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sun 1/26

10:41 am-12:10 am

1 stop21h 29m

Singapore Changi

Wed 2/12

11:00 am-1:30 pm

1 stop18h 30m

$785

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sat 3/8

8:40 am-5:40 pm

Nonstop17h 00m

Singapore Changi

Thu 3/13

9:15 am-1:53 pm

1 stop19h 38m

$830

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Thu 2/20

6:10 am-5:25 am

2 stops31h 15m

Singapore Changi

Fri 2/28

12:25 am-3:00 pm

2 stops30h 35m

$833

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 2/5

8:03 am-12:35 am

2 stops24h 32m

Singapore Changi

Tue 2/11

1:55 am-10:55 am

1 stop25h 00m

$865

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sun 2/9

5:15 pm-8:15 pm

1 stop35h 00m

Singapore Changi

Tue 2/18

10:10 am-6:07 pm

2 stops23h 57m

$878

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 1/22

7:00 pm-5:35 pm

1 stop30h 35m

Singapore Changi

Wed 1/29

11:25 pm-5:05 pm

1 stop33h 40m

$884

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 1/29

7:05 pm-7:55 am

1 stop20h 50m

Singapore Changi

Tue 2/11

1:55 am-2:30 pm

2 stops28h 35m

$887

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Tue 1/21

8:03 am-6:40 am

2 stops30h 37m

Singapore Changi

Tue 2/4

8:15 am-9:55 am

1 stop17h 40m

$888

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 28 results
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Compare providers for flights from Seattle to Singapore

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Singapore in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
KAYAKPrice Accuracy-Trust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
ScholarTripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Singapore flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-Singapore flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Seattle-Singapore flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Singapore flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Singapore flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Seattle with our price prediction graph.
Estimated round-trip 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.

Travel insights for flights from Seattle to Singapore

Get recent, data-driven insights about flights from Seattle to Singapore including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Seattle to Singapore?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Singapore. Price data was last updated on December 20, 2024.

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Singapore. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Singapore?

Currently, September is the cheapest month in which you can book a flight from Seattle to Singapore (average of $1,011). Flying from Seattle to Singapore in December is currently the most expensive (average of $1,684). 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 SEA to SIN?

Find hourly flight availability from Seattle to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2024.

It’s typically best to fly out from Seattle to Singapore at noon. Doing so could potentially save you 12% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Seattle to Singapore?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Singapore. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Singapore flight should consider departing on Monday mornings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Singapore by month

Plan your trip to Singapore by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Singapore ranges from 5.9 - 10.6 inches per month. December is typically the wettest month, when rainfall can reach 10.6 in. July is typically the driest time to visit Singapore when rainfall is around 5.9 in.

Temperature in Singapore by month

Plan your trip to Singapore by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. 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 Singapore. Reviews last updated December 23, 2024.
Peruse reviews from past customers who have flown with Asiana Airlines, Singapore Airlines and Delta from Seattle to Singapore to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
129 reviews

Entertainment

9.1

Crew

9.3

Comfort

9.0

Food

8.9

Boarding

9.1

Overall

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

STARLUX Airlines
9.1
Wonderful
129 reviews
STARLUX Airlines
9.1
Wonderful
129 reviews

Entertainment

9.1

Crew

9.3

Comfort

9.0

Food

8.9

Boarding

9.1

Overall

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

EVA Air
8.4
Very good
1,263 reviews
STARLUX Airlines
9.1
Wonderful
129 reviews

Entertainment

9.1

Crew

9.3

Comfort

9.0

Food

8.9

Boarding

9.1

Overall

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

Korean Air
8.4
Very good
1,025 reviews
STARLUX Airlines
9.1
Wonderful
129 reviews

Entertainment

9.1

Crew

9.3

Comfort

9.0

Food

8.9

Boarding

9.1

Overall

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

ANA
8.4
Very good
844 reviews
STARLUX Airlines
9.1
Wonderful
129 reviews

Entertainment

9.1

Crew

9.3

Comfort

9.0

Food

8.9

Boarding

9.1

Overall

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

Japan Airlines
8.3
Very good
1,440 reviews
STARLUX Airlines
9.1
Wonderful
129 reviews

Entertainment

9.1

Crew

9.3

Comfort

9.0

Food

8.9

Boarding

9.1

Overall

9.1

Reviews

1 / 3

Delicious food! I thought my first leg from SFO to Taipei was good, but this second from Taipei to Sapporo was even better. I liked the configuration of the plane 2 x 3 x 2. Although I wish it was made clear that folks needed to have their seats up during meal times. I had to remind the individual in front of me each time, which was awkward.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Singapore. 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 Seattle to Singapore flight route?

    Within the past month, 40 users have taken a look at flights from Seattle/Tacoma Intl to Singapore Changi.

  • What are the cheapest airlines flying from Seattle to Singapore round-trip?

    Asiana Airlines, at $744, was found to be the cheapest airline from Seattle to Singapore.Alternate airlines to your destination round-trip include Korean Air and Singapore Airlines. Asiana Airlines is priced at 37% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Singapore one-way?

    For one-way options, check prices for Singapore Airlines. According to our data, you can fly for as low as $327. Users have also found prices from $386 and $416 on Asiana Airlines and Korean Air, respectively.

  • What are the cheapest flights from Seattle to Singapore?

    Looking for the cheapest flight from Seattle to Singapore? While on average our users pay $1,801, our data indicates the cheapest price to be $443. The most popular route (Seattle/Tacoma Intl - Singapore Changi), is priced around $685.

  • Where are the most common layover locations when flying from Seattle to Singapore?

    Flights departing from Seattle and landing in Singapore layover in Incheon most frequently. Incheon is followed by San Francisco in terms of the most popular layover location on flights from Seattle to Singapore.

  • What are some popular things to do or see while on a layover in Incheon?

    Wolmido Amusement Park, G Tower, and Moraenae Market are currently the most popular points of interest in Incheon at the moment. Wolmido Amusement Park, G Tower and Moraenae Market are located about 8.3 mi, 10.7 mi, and 14.7 mi, respectively from Incheon Intl if you are interested in checking them out. Those looking to explore during their layover in Incheon can rent a car from Incheon Intl for about $60 per day.

  • What are some popular points of interest to see during a layover in San Francisco?

    San Francisco travelers tend to visit Fisherman's Wharf, Union Square, and Bill Graham Civic Auditorium more than any other notable places. Fisherman's Wharf, Union Square, and Bill Graham Civic Auditorium can be accessed by traveling approximately 13.0 mi, 11.6 mi, and 11.1 mi, respectively from San Francisco. Travelers in need of a car in San Francisco can rent one for about $50 per day.

  • Where are the least popular layover locations for Seattle to Singapore flights?

    The least popular layover on flights from Seattle to Singapore is Tokyo.

  • Can I find deals for flights from Seattle to Singapore that include hotel bookings?

    Yes. In addition to deals on Seattle to Singapore flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Singapore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Singapore.

  • Can I find deals for business class flights from Seattle to Singapore?

    Yes. Cheapflights offers flight deals from Seattle to Singapore 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 Seattle to Singapore?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Singapore (average of $1,011). Flying from Seattle to Singapore in December is currently the most expensive (average of $1,684). 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.

See more FAQs

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Alternative routes for Seattle to Singapore

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Singapore flights
Spokane to Singapore flights

Top 10 airlines flying from Seattle to Singapore

Discover the top 10 airlines that operate flights from Seattle to Singapore. 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 2,558,603 searches. Data last updated December 23, 2024.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$694Average$786FlexibilityNo cancel feeOn-time76%
Philippine AirlinesCheapest$728Average$793FlexibilityNo cancel feeOn-time60%
Korean AirCheapest$748Average$998FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$790Average$1,053FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$815Average$1,135FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$817Average$1,210FlexibilityNo cancel feeOn-time81%
DeltaCheapest$882Average$1,251FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$899Average$1,003FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$911Average$1,277FlexibilityNo cancel feeOn-time67%
Turkish AirlinesCheapest$953Average$1,385FlexibilityNo cancel feeOn-time77%
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