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$405+ Cheap flights from Washington 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SIN
Nov 19 — Nov 261
1 adult
Tue 11/19
Tue 11/26
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Cheap flight deals from Washington to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from Washington (USWA) 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 November 14, 2024.

Find flight deals from Washington to Singapore

Cheapest flights from Washington to Singapore
Explore the most affordable flight options available from Washington to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 14, 2024.

This oojo deal was found by Cheapflights users on 11/12. 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.
Sun 11/1710:35 pmSEA - SIN
1 stop19h 00mPhilippine Airlines
Fri 11/2210:35 amSIN - SEA
1 stop23h 35mPhilippine Airlines
Deal found 11/12$782
This Gotogate deal was found by Cheapflights users on 11/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/112:45 pmSEA - SIN
1 stop19h 50mAsiana Airlines
Tue 12/1711:10 pmSIN - SEA
1 stop27h 45mAsiana Airlines
Deal found 11/14$835
This Gotogate deal was found by Cheapflights users on 11/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/511:00 amSEA - SIN
1 stop26h 00mKorean Air
Thu 12/1210:30 pmSIN - SEA
1 stop26h 30mKorean Air
Deal found 11/13$843
This United Airlines deal was found by Cheapflights users on 11/14. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/95:15 amSEA - SIN
1 stop23h 00mUnited Airlines
Sun 12/1510:20 pmSIN - SEA
1 stop30h 38mUnited Airlines
Deal found 11/14$875
This Delta deal was found by Cheapflights users on 11/13. 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.
Thu 11/2810:35 amSEA - SIN
1 stop21h 35mDelta
Thu 12/510:30 pmSIN - SEA
1 stop30h 43mDelta
Deal found 11/13$886
This Kissandfly.com deal was found by Cheapflights users on 11/12. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/95:15 amSEA - SIN
1 stop23h 00mLufthansa
Sun 12/1510:20 pmSIN - SEA
1 stop30h 38mLufthansa
Deal found 11/12$920
This Air Canada deal was found by Cheapflights users on 11/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/37:15 pmSEA - SIN
2 stops24h 40mMultiple Airlines
Tue 3/410:00 amSIN - SEA
1 stop24h 25mMultiple Airlines
Deal found 11/13$922
This Justfly.com deal was found by Cheapflights users on 11/13. 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.
Mon 12/27:15 pmSEA - SIN
2 stops24h 00mAir Canada
Fri 12/610:00 amSIN - SEA
1 stop28h 00mAir Canada
Deal found 11/13$927
This Air Canada deal was found by Cheapflights users on 11/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/43:25 pmPDX - SIN
1 stop24h 30mMultiple Airlines
Tue 12/1010:00 amSIN - PDX
2 stops24h 35mMultiple Airlines
Deal found 11/14$1,070
This Turkish Airlines deal was found by Cheapflights users on 11/14. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/307:00 pmSEA - SIN
1 stop45h 45mTurkish Airlines
Sun 12/2911:25 pmSIN - SEA
1 stop33h 40mTurkish Airlines
Deal found 11/14$1,071
This oojo deal was found by Cheapflights users on 11/13. 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.
Thu 11/2812:10 amSEA - SIN
1 stop20h 55mChina Airlines
Sat 12/72:00 amSIN - SEA
1 stop32h 15mChina Airlines
Deal found 11/13$1,086
This CrystalTravel deal was found by Cheapflights users on 11/13. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/314:05 pmSEA - SIN
1 stop24h 40mQatar Airways
Sun 1/263:15 amSIN - SEA
1 stop24h 25mQatar Airways
Deal found 11/13$1,098

Find flights from Washington to Singapore within your budget

Customize your flight search to find flights from Washington 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 2,752,363 searches. Data last updated November 14, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Mon 2/17

12:45 pm-12:35 am

1 stop19h 50m

Singapore Changi

Wed 3/12

11:10 pm-11:55 am

1 stop27h 45m

$784

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Tue 1/21

12:30 pm-12:50 am

1 stop20h 20m

Singapore Changi

Wed 2/19

8:15 am-9:55 am

1 stop17h 40m

$788

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Wed 1/22

12:30 pm-12:50 am

1 stop20h 20m

Singapore Changi

Wed 1/29

8:15 am-9:55 am

1 stop17h 40m

$798

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Fri 11/29

10:35 pm-9:35 am

1 stop19h 00m

Singapore Changi

Sat 12/7

8:00 pm-6:10 pm

1 stop38h 10m

$811

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Thu 1/9

6:55 am-12:50 am

2 stops25h 55m

Singapore Changi

Wed 1/22

8:15 am-9:55 am

1 stop17h 40m

$818

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Thu 12/5

11:00 am-5:00 am

1 stop26h 00m

Singapore Changi

Wed 12/11

1:30 am-9:00 am

1 stop23h 30m

$843

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Mon 1/20

7:00 pm-5:35 pm

1 stop30h 35m

Singapore Changi

Fri 1/31

10:25 am-5:05 pm

1 stop46h 40m

$873

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Mon 12/9

5:15 am-8:15 pm

1 stop23h 00m

Singapore Changi

Sun 12/15

10:20 pm-12:58 pm

1 stop30h 38m

$875

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Thu 11/28

10:35 am-12:10 am

1 stop21h 35m

Singapore Changi

Thu 12/5

10:30 pm-1:13 pm

1 stop30h 43m

$886

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Tue 1/21

7:05 pm-2:50 pm

2 stops27h 45m

Singapore Changi

Thu 1/30

10:00 am-6:25 pm

1 stop24h 25m

$900

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/14

Showing 1-10 of 49 results
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Best time to book a flight from Washington to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Washington 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 Washington to Singapore

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

What is the cheapest month to book a flight from State of Washington to Singapore?

Currently, September is the cheapest month in which you can book a flight from State of Washington to Singapore (average of $1,011). Flying from State of Washington to Singapore in June is currently the most expensive (average of $1,556). 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 WA to SIN?

Find hourly flight availability from Washington 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 November 14, 2024.

When flying from State of Washington to Singapore, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 November 14, 2024.
Get a feel of what it's like to fly with Asiana Airlines, Japan Airlines and American Airlines from Washington to Singapore by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
124 reviews

Food

9.0

Crew

9.3

Overall

9.1

Boarding

9.1

Entertainment

9.1

Comfort

9.0

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
124 reviews
STARLUX Airlines
9.1
Wonderful
124 reviews

Food

9.0

Crew

9.3

Overall

9.1

Boarding

9.1

Entertainment

9.1

Comfort

9.0

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
8.5
Very good
1,036 reviews
STARLUX Airlines
9.1
Wonderful
124 reviews

Food

9.0

Crew

9.3

Overall

9.1

Boarding

9.1

Entertainment

9.1

Comfort

9.0

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
1,316 reviews
STARLUX Airlines
9.1
Wonderful
124 reviews

Food

9.0

Crew

9.3

Overall

9.1

Boarding

9.1

Entertainment

9.1

Comfort

9.0

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
836 reviews
STARLUX Airlines
9.1
Wonderful
124 reviews

Food

9.0

Crew

9.3

Overall

9.1

Boarding

9.1

Entertainment

9.1

Comfort

9.0

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
1,460 reviews
STARLUX Airlines
9.1
Wonderful
124 reviews

Food

9.0

Crew

9.3

Overall

9.1

Boarding

9.1

Entertainment

9.1

Comfort

9.0

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 Washington to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Singapore from Washington?

    If you book a flight to Singapore from Washington, you will be flying to Changi, which is the city’s only airport. Singapore Changi (SIN) is located 10.5 mi from the center of Singapore.

  • How popular is this State of Washington to Singapore flight route?

    The Washington to Singapore Changi flight path was viewed by 48 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from State of Washington to Singapore one-way?

    The cheapest airlines for a one-way flight from State of Washington to Singapore are Asiana Airlines ($405), Japan Airlines ($443), and American Airlines ($463).

  • What are the most popular routes from State of Washington to Singapore?

    While some choose either Portland - Singapore Changi or Spokane - Singapore Changi, Seattle/Tacoma Intl - Singapore Changi is the most popular route from State of Washington to Singapore.

  • What are the cheapest flights from State of Washington to Singapore?

    The cheapest flight price from State of Washington to Singapore is $411. On average you can expect to pay $1,796. The most popular route, (Seattle/Tacoma Intl - Singapore Changi), can usually be booked for $712.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Singapore?

    Currently, September is the cheapest month in which you can book a flight from State of Washington to Singapore (average of $1,011). Flying from State of Washington to Singapore in June is currently the most expensive (average of $1,556). 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 Washington to Singapore

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Top 10 airlines flying from Washington to Singapore

Discover the top 10 airlines that operate flights from Washington 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 2,752,363 searches. Data last updated November 14, 2024.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$728Average$794FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$735Average$799FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$748Average$998FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$815Average$1,346FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$819Average$1,247FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$822Average$1,081FlexibilityNo cancel feeOn-time79%
DeltaCheapest$882Average$1,251FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$899Average$1,003FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$911Average$1,248FlexibilityNo cancel feeOn-time67%
STARLUX AirlinesCheapest$976Average$1,097FlexibilityNo cancel feeOn-timeN/A
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