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$407+ 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — SEA
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$638
(lol.travel)

One-way from

$417
(Orbitz)

Popular in

August

Cheapest in

February

Average price

$1,048

Good one-way deal

$462 or less
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. 10% potential increase in price ($106 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This lol.travel deal was found by Cheapflights users on 7/31. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/259:10 amSIN - SEA
1 stop20h 06mAir Canada
Thu 10/92:55 pmSEA - SIN
1 stop25h 10mAir Canada
Deal found 7/31$638
This Asiana Airlines deal was found by Cheapflights users on 7/29. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2811:10 pmSIN - SEA
1 stop30h 45mAsiana Airlines
Wed 1/1412:10 amSEA - SIN
1 stop29h 45mAsiana Airlines
Deal found 7/29$665
This oojo deal was found by Cheapflights users on 7/31. 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.
Sat 9/202:00 pmSIN - SEA
1 stop17h 10mSTARLUX Airlines
Sat 9/271:15 amSEA - SIN
1 stop20h 25mSTARLUX Airlines
Deal found 7/31$711
This Air Canada deal was found by Cheapflights users on 7/29. 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 10/19:45 amSIN - SEA
2 stops27h 31mMultiple Airlines
Mon 10/275:50 amSEA - SIN
2 stops28h 05mMultiple Airlines
Deal found 7/29$714
This Air Canada deal was found by Cheapflights users on 7/28. 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.
Thu 10/91:45 amSIN - PDX
2 stops22h 35mMultiple Airlines
Thu 11/201:00 pmPDX - SIN
2 stops26h 00mMultiple Airlines
Deal found 7/28$763
This Gotogate deal was found by Cheapflights users on 7/30. 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 9/142:40 pmSIN - PDX
2 stops33h 41mAir Canada
Sun 9/213:25 pmPDX - SIN
1 stop24h 40mAir Canada
Deal found 7/30$766
This Expedia deal was found by Cheapflights users on 7/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/112:00 pmSIN - PDX
2 stops23h 45mSTARLUX Airlines
Fri 11/218:38 pmPDX - SIN
2 stops24h 47mSTARLUX Airlines
Deal found 7/29$1,021
This KAYAK deal was found by Cheapflights users on 7/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/11:55 amSIN - PDX
2 stops34h 19mJapan Airlines
Tue 9/167:23 amPDX - SIN
2 stops25h 57mJapan Airlines
Deal found 7/31$1,148
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Sun 10/128:40 pmSIN - PDX
1 stop33h 02mUnited Airlines
Sat 11/227:38 pmPDX - SIN
1 stop32h 37mUnited Airlines
Deal found 7/30$1,365

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 July 31, 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

Thu 9/25

9:10 am-2:16 pm

1 stop20h 06m

Seattle/Tacoma Intl

Thu 10/9

2:55 pm-7:05 am

1 stop25h 10m

$638

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sun 12/28

11:10 pm-1:55 pm

1 stop30h 45m

Seattle/Tacoma Intl

Wed 1/14

12:10 am-9:55 pm

1 stop29h 45m

$665

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Sat 9/20

2:00 pm-4:10 pm

1 stop17h 10m

Seattle/Tacoma Intl

Sat 9/27

1:15 am-12:40 pm

1 stop20h 25m

$711

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Wed 10/1

9:45 am-10:16 pm

2 stops27h 31m

Seattle/Tacoma Intl

Mon 10/27

5:50 am-12:55 am

2 stops28h 05m

$714

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Thu 10/9

1:45 am-9:20 am

2 stops22h 35m

Portland

Thu 11/20

1:00 pm-7:00 am

2 stops26h 00m

$763

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Sun 9/14

2:40 pm-9:21 am

2 stops33h 41m

Portland

Sun 9/21

3:25 pm-7:05 am

1 stop24h 40m

$766

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Sat 10/11

2:00 pm-10:45 pm

2 stops23h 45m

Portland

Fri 11/21

8:38 pm-1:25 pm

2 stops24h 47m

$1,021

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Mon 9/1

1:55 am-9:14 pm

2 stops34h 19m

Portland

Tue 9/16

7:23 am-12:20 am

2 stops25h 57m

$1,148

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Sun 10/12

8:40 pm-2:42 pm

1 stop33h 02m

Portland

Sat 11/22

7:38 pm-8:15 pm

1 stop32h 37m

$1,365

SingaporeSeattle

SIN - SEA

SINSEA

Singapore Changi

Thu 10/23

9:00 am-8:45 am

Nonstop14h 45m

$407

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 25 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 June is currently the most expensive (average of $389). 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 July 31, 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.

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 July 31, 2025.
Read reviews from past customers who have flown STARLUX Airlines, EVA Air, and Korean Air from Singapore to Washington. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.0
Wonderful
199 reviews

Overall

9.0

Boarding

9.0

Food

8.8

Entertainment

8.9

Comfort

8.9

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.0
Wonderful
199 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Overall

9.0

Boarding

9.0

Food

8.8

Entertainment

8.9

Comfort

8.9

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very good
1,220 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Overall

9.0

Boarding

9.0

Food

8.8

Entertainment

8.9

Comfort

8.9

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,121 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Overall

9.0

Boarding

9.0

Food

8.8

Entertainment

8.9

Comfort

8.9

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
ANA
8.4
Very good
922 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Overall

9.0

Boarding

9.0

Food

8.8

Entertainment

8.9

Comfort

8.9

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Japan Airlines
8.3
Very good
1,536 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Overall

9.0

Boarding

9.0

Food

8.8

Entertainment

8.9

Comfort

8.9

Crew

9.3

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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 Singapore Airlines. According to our data, you can fly for as low as $417. Users have also found prices from $445 and $463 on Air Canada and United 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 June is currently the most expensive (average of $389). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Singapore to Washington

Discover the top 5 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$762Average$855FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$763Average$1,299FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$779Average$872FlexibilityNo cancel feeOn-time74%
STARLUX AirlinesCheapest$785Average$831FlexibilityNo cancel feeOn-timeN/A
ANACheapest$859Average$903FlexibilityNo cancel feeOn-time80%

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