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$454+ Cheap flights from Singapore to Washington

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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — SEA
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Singapore to Washington

Keep the following information in mind while searching for Singapore to Washington flight deals. Data was last updated April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$701
(FlightHub)

One-way from

$454
(United Airlines)

Popular in

August

Cheapest in

February

Average price

$937

Good one-way deal

$785 or less
Provider with most accurate pricing for Singapore Changi-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Singapore Changi-Seattle/Tacoma Intl flights.
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From Singapore to Washington
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One-way flight from Singapore to Washington
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Highest demand for flights based on searches. 7% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a one-way flight from Singapore to Washington.
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Find flight deals from Singapore to Washington

Cheapest flights from Singapore to Washington
Explore the most affordable flight options available from Singapore to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Gotogate deal was found by Cheapflights users on 4/17. 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.
Wed 5/1410:50 pmSIN - SEA
1 stop28h 40mAsiana Airlines
Sun 5/182:15 pmSEA - SIN
1 stop40h 15mAsiana Airlines
Deal found 4/17$709
This Trip.com deal was found by Cheapflights users on 4/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/212:00 amSIN - SEA
1 stop32h 30mChina Airlines
Mon 7/141:40 amSEA - SIN
1 stop31h 55mChina Airlines
Deal found 4/17$726
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Tue 6/108:40 pmSIN - SEA
1 stop19h 19mUnited Airlines
Mon 8/117:00 amSEA - SIN
1 stop20h 25mUnited Airlines
Deal found 4/17$733
This Gotogate deal was found by Cheapflights users on 4/17. 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.
Wed 5/142:00 pmSIN - SEA
1 stop17h 10mSTARLUX Airlines
Sat 5/171:15 amSEA - SIN
1 stop20h 25mSTARLUX Airlines
Deal found 4/17$781
This Mytrip deal was found by Cheapflights users on 4/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/132:15 amSIN - SEA
1 stop25h 15mMultiple Airlines
Sun 5/182:15 pmSEA - SIN
2 stops26h 00mMultiple Airlines
Deal found 4/17$825
This Gotogate deal was found by Cheapflights users on 4/16. 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 6/19:10 amSIN - SEA
1 stop39h 08mAir Canada
Sun 6/85:35 amSEA - SIN
1 stop34h 30mAir Canada
Deal found 4/16$828
This CheapTickets deal was found by Cheapflights users on 4/17. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/73:10 pmSIN - SEA
1 stop19h 20mEVA Air
Fri 6/1312:50 amSEA - SIN
1 stop22h 00mEVA Air
Deal found 4/17$838
This Gotogate deal was found by Cheapflights users on 4/17. 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 5/1110:30 pmSIN - SEA
1 stop27h 10mKorean Air
Tue 5/2712:50 pmSEA - SIN
1 stop19h 50mKorean Air
Deal found 4/17$851
This Delta deal was found by Cheapflights users on 4/17. 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.
Wed 5/141:10 amSIN - SEA
1 stop27h 25mDelta
Thu 7/2412:55 pmSEA - SIN
1 stop19h 45mDelta
Deal found 4/17$879
This BYOjet deal was found by Cheapflights users on 4/17. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/19:10 amSIN - PDX
1 stop28h 45mAir Canada
Sun 6/83:25 pmPDX - SIN
1 stop24h 40mAir Canada
Deal found 4/17$894
This Gotogate deal was found by Cheapflights users on 4/17. 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 6/12:00 pmSIN - PDX
2 stops20h 00mSTARLUX Airlines
Sun 6/87:45 pmPDX - SIN
2 stops25h 55mSTARLUX Airlines
Deal found 4/17$921
This Flightnetwork deal was found by Cheapflights users on 4/17. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/110:10 pmSIN - SEA
1 stop31h 15mANA
Sun 5/47:00 amSEA - SIN
2 stops26h 45mANA
Deal found 4/17$972

Cheapflights Fare Finder

Customize your flight search to find flights from Singapore to Washington 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 April 17, 2025.
Use the filters below to find and compare flights from Singapore to Washington that are best for you.

Fly from

Singapore

Fly to

Washington

Route

Depart

Return

Price

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 5/14

10:50 pm-12:30 pm

1 stop28h 40m

Seattle/Tacoma Intl

Sun 5/18

2:15 pm-9:30 pm

1 stop40h 15m

$709

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 6/21

2:00 am-7:30 pm

1 stop32h 30m

Seattle/Tacoma Intl

Mon 7/14

1:40 am-12:35 am

1 stop31h 55m

$726

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 6/10

8:40 pm-12:59 am

1 stop19h 19m

Seattle/Tacoma Intl

Mon 8/11

7:00 am-6:25 pm

1 stop20h 25m

$733

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 5/14

2:00 pm-4:10 pm

1 stop17h 10m

Seattle/Tacoma Intl

Sat 5/17

1:15 am-12:40 pm

1 stop20h 25m

$781

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Tue 5/13

2:15 am-12:30 pm

1 stop25h 15m

Seattle/Tacoma Intl

Sun 5/18

2:15 pm-7:15 am

2 stops26h 00m

$825

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 6/1

9:10 am-9:18 am

1 stop39h 08m

Seattle/Tacoma Intl

Sun 6/8

5:35 am-7:05 am

1 stop34h 30m

$828

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 6/7

3:10 pm-7:30 pm

1 stop19h 20m

Seattle/Tacoma Intl

Fri 6/13

12:50 am-1:50 pm

1 stop22h 00m

$838

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 5/11

10:30 pm-10:40 am

1 stop27h 10m

Seattle/Tacoma Intl

Tue 5/27

12:50 pm-11:40 pm

1 stop19h 50m

$851

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 5/14

1:10 am-1:35 pm

1 stop27h 25m

Seattle/Tacoma Intl

Thu 7/24

12:55 pm-11:40 pm

1 stop19h 45m

$879

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Sun 6/1

9:10 am-10:55 pm

1 stop28h 45m

Portland

Sun 6/8

3:25 pm-7:05 am

1 stop24h 40m

$894

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 37 results
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Best time to book a flight from Singapore to Washington

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

Cheapflights Insights

Everything you need to know about your flight from Singapore to Washington

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

Currently, January is the cheapest month in which you can book a flight from Singapore to State of Washington (average of $238). Flying from Singapore to State of Washington in July is currently the most expensive (average of $411). 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 SG to WA?

Find hourly flight availability from Singapore to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Singapore to State of Washington as you normally would.

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated April 17, 2025.
Read through reviews of airlines operating flights from Singapore to Washington, such as STARLUX Airlines, EVA Air and Korean Air. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
154 reviews

Entertainment

9.0

Boarding

9.0

Comfort

9.0

Overall

9.1

Crew

9.3

Food

8.9

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
STARLUX Airlines
9.1
Wonderful
154 reviews
STARLUX Airlines
9.1
Wonderful
154 reviews

Entertainment

9.0

Boarding

9.0

Comfort

9.0

Overall

9.1

Crew

9.3

Food

8.9

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
EVA Air
8.4
Very good
1,177 reviews
STARLUX Airlines
9.1
Wonderful
154 reviews

Entertainment

9.0

Boarding

9.0

Comfort

9.0

Overall

9.1

Crew

9.3

Food

8.9

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Korean Air
8.4
Very good
1,064 reviews
STARLUX Airlines
9.1
Wonderful
154 reviews

Entertainment

9.0

Boarding

9.0

Comfort

9.0

Overall

9.1

Crew

9.3

Food

8.9

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Japan Airlines
8.3
Very good
1,440 reviews
STARLUX Airlines
9.1
Wonderful
154 reviews

Entertainment

9.0

Boarding

9.0

Comfort

9.0

Overall

9.1

Crew

9.3

Food

8.9

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
ANA
8.3
Very good
844 reviews
STARLUX Airlines
9.1
Wonderful
154 reviews

Entertainment

9.0

Boarding

9.0

Comfort

9.0

Overall

9.1

Crew

9.3

Food

8.9

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Related info for your journey

Find useful and relevant information for your journey from Singapore to Washington. 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 State of Washington flight route?

    The Singapore to Washington flight path was viewed by 1 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 Singapore to State of Washington one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $454. Users have also found prices from $495 and $502 on China Airlines and STARLUX Airlines, respectively.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Singapore to State of Washington (average of $238). Flying from Singapore to State of Washington in July is currently the most expensive (average of $411). 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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Top 7 airlines flying from Singapore to Washington

Discover the top 7 airlines that operate flights from Singapore to Washington. 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$763Average$1,396FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$781Average$1,033FlexibilityNo cancel feeOn-time74%
STARLUX AirlinesCheapest$801Average$931FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$802Average$874FlexibilityNo cancel feeOn-time69%
ANACheapest$859Average$980FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$864Average$1,145FlexibilityNo cancel feeOn-time79%
American AirlinesCheapest$990Average$1,190FlexibilityNo cancel feeOn-time71%

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