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$327+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SIN
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
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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 December 22, 2024.

Round-trip from

$744
(oojo)

One-way from

$327
(FlightHub)
From Washington to Singapore Changi
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One-way flight from Washington to Singapore Changi
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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 December 22, 2024.

This Gurufare 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 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 12/21$915
This United 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/314:30 pmSEA - SIN
1 stop23h 30mUnited Airlines
Mon 1/2710:10 amSIN - SEA
2 stops28h 20mUnited Airlines
Deal found 12/21$1,141
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/317:00 amSEA - SIN
2 stops31h 40mJapan Airlines
Sun 1/262:20 amSIN - SEA
2 stops30h 39mJapan Airlines
Deal found 12/21$1,259
This Cheapflightsfares 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 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 12/21$1,261
This United 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2411:27 amPDX - SIN
1 stop28h 33mUnited Airlines
Tue 12/3110:10 amSIN - PDX
1 stop26h 13mUnited Airlines
Deal found 12/21$1,291
This oojo 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 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 12/21$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 12/21. 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 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 12/21$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 Gurufare 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/248:20 amPDX - SIN
2 stops23h 50mKorean Air
Tue 12/3110:30 pmSIN - PDX
2 stops33h 58mKorean Air
Deal found 12/21$2,062
This oojo 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 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 12/21$2,127

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 2,558,603 searches. Data last updated December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sun 1/19

12:45 pm-9:55 pm

1 stop41h 10m

Singapore Changi

Sat 2/1

1:55 am-10:55 am

1 stop25h 00m

$744

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Thu 2/6

11:00 am-12:10 am

1 stop21h 10m

Singapore Changi

Mon 2/24

10:30 pm-9:00 am

1 stop26h 30m

$746

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sat 3/22

9:40 am-5:40 pm

Nonstop17h 00m

Singapore Changi

Sun 3/30

9:00 am-8:45 am

Nonstop14h 45m

$774

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Tue 1/14

10:41 am-5:00 am

1 stop26h 19m

Singapore Changi

Tue 1/28

11:00 am-1:19 pm

1 stop18h 19m

$785

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 1/29

7:05 pm-11:15 am

2 stops24h 10m

Singapore Changi

Tue 2/11

10:00 am-10:07 pm

1 stop28h 07m

$882

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Tue 2/4

3:05 pm-4:20 pm

2 stops33h 15m

Singapore Changi

Tue 2/11

10:00 am-10:07 pm

1 stop28h 07m

$883

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Sun 1/19

11:30 am-6:40 am

2 stops51h 10m

Singapore Changi

Wed 1/22

2:20 am-10:35 am

2 stops48h 15m

$884

SeattleSingapore

SEA - SIN

SEASIN

Seattle/Tacoma Intl

Mon 1/13

7:00 am-8:15 pm

1 stop21h 15m

Singapore Changi

Tue 2/25

10:10 am-6:29 pm

1 stop24h 19m

$886

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 2/25

6:00 am-5:25 am

2 stops31h 25m

Singapore Changi

Sun 3/2

12:25 am-3:25 pm

2 stops31h 00m

$908

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 57 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 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 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 December 22, 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 December 22, 2024.
Get a feel of what it's like to fly with Asiana Airlines, Delta and Air Canada 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
129 reviews

Crew

9.3

Overall

9.1

Boarding

9.1

Food

8.9

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
129 reviews
STARLUX Airlines
9.1
Wonderful
129 reviews

Crew

9.3

Overall

9.1

Boarding

9.1

Food

8.9

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
1,263 reviews
STARLUX Airlines
9.1
Wonderful
129 reviews

Crew

9.3

Overall

9.1

Boarding

9.1

Food

8.9

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

Crew

9.3

Overall

9.1

Boarding

9.1

Food

8.9

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
844 reviews
STARLUX Airlines
9.1
Wonderful
129 reviews

Crew

9.3

Overall

9.1

Boarding

9.1

Food

8.9

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
1,440 reviews
STARLUX Airlines
9.1
Wonderful
129 reviews

Crew

9.3

Overall

9.1

Boarding

9.1

Food

8.9

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 40 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 Singapore Airlines ($327), Asiana Airlines ($386), and Korean Air ($416).

  • 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 $443. On average you can expect to pay $1,801. The most popular route, (Seattle/Tacoma Intl - Singapore Changi), can usually be booked for $639.

  • 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 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.

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See prices for flight routes from nearby airports that may be better suited for you.
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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 2,558,603 searches. Data last updated December 22, 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$1,352FlexibilityNo 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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