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$504+ Cheap flights from Washington, D.C. (WAS) 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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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The best prices from Washington, D.C. to Singapore Changi are usually found in November or April, booked 68 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Washington, D.C. to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$869
(FlightHub)

One-way from

$537
(oojo)

Popular in

December

Cheapest in

November

Average price

$1,827
Provider with most accurate pricing for Washington, D.C. (WAS)-Singapore Changi flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Singapore Changi flights.
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From Washington, D.C. (WAS) to Singapore Changi
Search Deals
One-way flight from Washington, D.C. (WAS) to Singapore Changi
Search Deals
High demand for flights, 4% potential price rise
Search Deals
Best time to find cheap flights, 3% potential price drop
Search Deals
Average for round-trip flights in December 2024
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Find flight deals from Washington, D.C. to Singapore

Cheapest flights from Washington, D.C. to Singapore
Explore the most affordable flight options available from Washington, D.C. to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This FlightHub deal was found by Cheapflights users on 12/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3110:00 amIAD - SIN
1 stop39h 50mEthiopian Air
Fri 1/312:00 amSIN - IAD
2 stops30h 05mEthiopian Air
Deal found 12/17$1,379
This Air Canada deal was found by Cheapflights users on 12/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3111:00 amDCA - SIN
2 stops31h 55mAir Canada
Sat 2/110:00 amSIN - DCA
2 stops35h 57mAir Canada
Deal found 12/17$1,425
This Air Canada deal was found by Cheapflights users on 12/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/312:35 pmIAD - SIN
2 stops28h 20mAir Canada
Sat 2/110:00 amSIN - IAD
2 stops36h 46mAir Canada
Deal found 12/17$1,473
This CheapOair deal was found by Cheapflights users on 12/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3110:00 amIAD - SIN
1 stop39h 50mMultiple Airlines
Sat 2/15:00 pmSIN - IAD
1 stop34h 45mMultiple Airlines
Deal found 12/17$1,531
This United Airlines deal was found by Cheapflights users on 12/18. 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.
Sat 12/288:35 amIAD - SIN
2 stops34h 25mUnited Airlines
Mon 12/3010:20 pmSIN - IAD
2 stops35h 31mUnited Airlines
Deal found 12/18$1,595
This oojo deal was found by Cheapflights users on 12/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/317:00 amDCA - SIN
2 stops33h 40mCathay Pacific
Fri 1/311:25 amSIN - DCA
2 stops28h 16mCathay Pacific
Deal found 12/17$1,608
This United Airlines deal was found by Cheapflights users on 12/18. 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.
Sat 12/286:35 amBWI - SIN
2 stops36h 25mUnited Airlines
Mon 12/3010:20 pmSIN - BWI
2 stops36h 16mUnited Airlines
Deal found 12/18$1,715
This United Airlines deal was found by Cheapflights users on 12/18. 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.
Sat 12/285:59 pmDCA - SIN
1 stop25h 01mUnited Airlines
Mon 12/3010:20 pmSIN - DCA
1 stop31h 32mUnited Airlines
Deal found 12/18$1,772
This KLM deal was found by Cheapflights users on 12/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:35 pmIAD - SIN
2 stops26h 25mKLM
Fri 1/311:40 amSIN - IAD
2 stops28h 22mKLM
Deal found 12/17$1,802
This Air France deal was found by Cheapflights users on 12/17. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:42 pmBWI - SIN
2 stops26h 18mMultiple Airlines
Fri 1/311:40 amSIN - BWI
2 stops28h 16mMultiple Airlines
Deal found 12/17$1,980
This CheapOair deal was found by Cheapflights users on 12/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/287:40 amDCA - SIN
2 stops32h 20mKorean Air
Mon 12/3010:30 pmSIN - DCA
2 stops32h 49mKorean Air
Deal found 12/18$2,385
This Delta deal was found by Cheapflights users on 12/18. 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.
Fri 12/2711:50 amIAD - SIN
1 stop28h 10mDelta
Sat 1/111:30 amSIN - IAD
2 stops32h 35mDelta
Deal found 12/18$2,430

Find flights from Washington, D.C. to Singapore within your budget

Customize your flight search to find flights from Washington, D.C. 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 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 1/21

2:00 pm-5:35 pm

1 stop38h 35m

Singapore Changi

Thu 1/30

10:25 am-11:35 am

1 stop38h 10m

$869

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 1/18

6:10 pm-3:30 pm

1 stop32h 20m

Singapore Changi

Wed 3/5

5:00 pm-2:45 pm

1 stop34h 45m

$870

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 2/11

8:05 pm-2:55 pm

1 stop29h 50m

Singapore Changi

Tue 2/18

3:15 am-3:55 pm

1 stop25h 40m

$958

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 4/18

10:00 pm-9:45 am

1 stop23h 45m

Singapore Changi

Sun 5/4

8:55 pm-4:35 pm

1 stop31h 40m

$964

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 3/17

10:00 am-12:10 am

2 stops26h 10m

Singapore Changi

Tue 3/25

11:00 am-11:29 pm

2 stops24h 29m

$992

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 3/17

6:05 am-12:10 am

2 stops30h 05m

Singapore Changi

Tue 3/25

11:00 am-11:33 pm

2 stops24h 33m

$992

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 2/11

8:05 pm-4:40 pm

2 stops31h 35m

Singapore Changi

Wed 2/19

8:25 pm-3:55 pm

1 stop32h 30m

$1,012

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 5/14

10:55 am-8:45 pm

1 stop21h 50m

Singapore Changi

Sat 5/31

2:15 am-4:10 pm

1 stop25h 55m

$1,065

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 1/13

8:05 pm-2:55 pm

1 stop29h 50m

Singapore Changi

Thu 1/23

3:15 am-3:55 pm

1 stop25h 40m

$1,148

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 3/15

5:35 pm-9:55 pm

2 stops40h 20m

Singapore Changi

Fri 3/21

11:55 pm-3:10 pm

1 stop27h 15m

$1,154

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 results
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Compare providers for flights from Washington, D.C. 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 Washington, D.C. to Singapore in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice 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 Washington, D.C.-Singapore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Singapore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Singapore flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Singapore flights, Cheapflights users trust FlightHub the most. FlightHub 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 Washington, D.C.-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 Washington, D.C. to Singapore

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

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

How far ahead should I book a flight from Washington, D.C. to Singapore?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Singapore. Price data was last updated on December 13, 2024.

To ensure you get the cheapest price possible for a flight from Washington, D.C. to Singapore, you should look to book at least 68 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Washington, D.C. to Singapore?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of $1,011). Flying from Washington, D.C. 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 WAS to SIN?

Find hourly flight availability from Washington, D.C. 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 18, 2024.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Singapore at noon. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from Washington, D.C. to Singapore?

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

Travelers seeking maximum savings on their Washington, D.C. to Singapore flight should consider departing on Monday evenings when fares are most often at their lowest. Friday at noon 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 18, 2024.
Read reviews from past customers who have flown Japan Airlines, United Airlines and British Airways from Washington, D.C. to Singapore. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very good
839 reviews

Entertainment

7.9

Comfort

8.2

Overall

8.4

Food

7.7

Boarding

8.6

Crew

8.7

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

ANA
8.4
Very good
839 reviews
ANA
8.4
Very good
839 reviews

Entertainment

7.9

Comfort

8.2

Overall

8.4

Food

7.7

Boarding

8.6

Crew

8.7

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Korean Air
8.4
Very good
1,018 reviews
ANA
8.4
Very good
839 reviews

Entertainment

7.9

Comfort

8.2

Overall

8.4

Food

7.7

Boarding

8.6

Crew

8.7

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Japan Airlines
8.3
Very good
1,443 reviews
ANA
8.4
Very good
839 reviews

Entertainment

7.9

Comfort

8.2

Overall

8.4

Food

7.7

Boarding

8.6

Crew

8.7

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Emirates
8.1
Very good
3,412 reviews
ANA
8.4
Very good
839 reviews

Entertainment

7.9

Comfort

8.2

Overall

8.4

Food

7.7

Boarding

8.6

Crew

8.7

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Singapore Airlines
8.1
Very good
1,329 reviews
ANA
8.4
Very good
839 reviews

Entertainment

7.9

Comfort

8.2

Overall

8.4

Food

7.7

Boarding

8.6

Crew

8.7

Reviews

1 / 10

Your hospitality was excellent, very polite and kind. The meal was tasty and good. The buns were cold. Who likes cold buns?

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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, D.C.?

    For a flight from Washington, D.C. to Singapore, you will be flying into Changi. Singapore Changi (SIN) is just 10.5 mi from the center of the city. Changi is the only Singapore airport and it handles 0 inbound flights from Washington, D.C. per day. 9 airlines have flights to Singapore Changi from Washington, D.C. on a regular basis.

  • What are the cheapest airlines flying from Washington, D.C. to Singapore round-trip?

    According to our current data, Turkish Airlines ($869), SAUDIA ($870), and Air India ($889) offers the cheapest pricing from Washington, D.C. to Singapore. Users have found that Turkish Airlines is 32% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. to Singapore one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. to Singapore are Turkish Airlines ($537), IndiGo ($561), and Delta ($585).

  • What are the most popular routes from Washington, D.C. to Singapore?

    The most popular route from Washington, D.C. to Singapore is Washington, D.C. Dulles Intl - Singapore Changi. You may also consider Baltimore/Washington - Singapore Changi or Washington, D.C. Reagan-National - Singapore Changi.

  • Where are the most common layover locations when flying from Washington, D.C. to Singapore?

    Flights departing from Washington, D.C. and landing in Singapore layover in Doha most frequently.

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

    Doha travelers tend to visit Museum of Islamic Art, Aspire Tower, and Katara Cultural Village more than anywhere else. Museum of Islamic Art, Aspire Tower, and Katara Cultural Village can be accessed by traveling approximately 5.2 mi, 10.6 mi, and 8.7 mi, respectively from Doha Hamad Intl. Travelers in need of a car in Doha can rent one for about $36 per day.

  • Where are the least popular layover locations for Washington, D.C. to Singapore flights?

    Washington, D.C. to Singapore flights have a layover in Istanbul the least frequently.

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

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

  • How can I find direct flights from Washington, D.C. to Singapore?

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

  • Can I find deals for business class flights from Washington, D.C. to Singapore?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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 Washington, D.C. to Singapore?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of $1,011). Flying from Washington, D.C. 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington, D.C. to Singapore

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Singapore flights
Reagan-National to Singapore flights

Top 9 airlines flying from Washington, D.C. to Singapore

Discover the top 9 airlines that operate flights from Washington, D.C. 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 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$835Average$1,051FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$904Average$1,708FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,001Average$1,632FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,021Average$1,385FlexibilityNo cancel feeOn-time71%
Qatar AirwaysCheapest$1,027Average$1,416FlexibilityNo cancel feeOn-time68%
JetBlueCheapest$1,028Average$1,206FlexibilityNo cancel feeOn-time62%
Korean AirCheapest$1,100Average$1,346FlexibilityNo cancel feeOn-time81%
Singapore AirlinesCheapest$1,226Average$1,681FlexibilityNo cancel feeOn-time81%
EmiratesCheapest$1,666Average$1,779FlexibilityNo cancel feeOn-time75%
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