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$436+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
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 January 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$873
(oojo)

One-way from

$443
(Trip.com)

Popular in

December

Cheapest in

November

Average price

$1,138
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
Highest demand for flights based on searches. 2% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals

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 January 21, 2025.

This oojo deal was found by Cheapflights users on 1/21. 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.
Thu 3/69:25 pmIAD - SIN
1 stop31h 10mTurkish Airlines
Mon 3/1711:25 pmSIN - IAD
1 stop33h 05mTurkish Airlines
Deal found 1/21$873
This Trip.com deal was found by Cheapflights users on 1/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2410:00 pmIAD - SIN
1 stop23h 45mEtihad Airways
Sun 5/48:55 pmSIN - IAD
1 stop31h 40mEtihad Airways
Deal found 1/21$886
This FlightHub deal was found by Cheapflights users on 1/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/277:10 pmIAD - SIN
1 stop32h 20mSAUDIA
Mon 4/75:15 pmSIN - IAD
1 stop34h 30mSAUDIA
Deal found 1/21$889
This FlightHub deal was found by Cheapflights users on 1/19. 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.
Sat 3/810:00 amIAD - SIN
1 stop32h 00mAir India
Fri 3/148:00 pmSIN - IAD
1 stop23h 50mAir India
Deal found 1/19$920
This Etihad Airways deal was found by Cheapflights users on 1/19. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1810:00 pmIAD - SIN
2 stops25h 30mMultiple Airlines
Mon 9/298:55 pmSIN - IAD
1 stop31h 40mMultiple Airlines
Deal found 1/19$937
This CrystalTravel deal was found by Cheapflights users on 1/20. 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 2/1111:50 amIAD - SIN
1 stop28h 10mKorean Air
Tue 2/181:30 amSIN - IAD
1 stop21h 20mKorean Air
Deal found 1/20$960
This eDestinos deal was found by Cheapflights users on 1/21. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/309:05 pmIAD - SIN
1 stop30h 40mQatar Airways
Wed 10/82:15 amSIN - IAD
1 stop25h 55mQatar Airways
Deal found 1/21$979
This Ovago deal was found by Cheapflights users on 1/21. 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.
Sat 3/14:35 pmIAD - SIN
2 stops40h 20mAir China
Mon 3/311:55 pmSIN - IAD
1 stop27h 15mAir China
Deal found 1/21$1,043
This eDestinos deal was found by Cheapflights users on 1/20. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/62:00 pmIAD - SIN
2 stops38h 20mIndiGo
Thu 3/137:40 pmSIN - IAD
2 stops36h 50mIndiGo
Deal found 1/20$1,045
This JetBlue deal was found by Cheapflights users on 1/20. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/139:05 pmIAD - SIN
1 stop23h 55mJetBlue
Sun 6/12:15 amSIN - IAD
1 stop25h 55mJetBlue
Deal found 1/20$1,065
This Travelocity deal was found by Cheapflights users on 1/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/196:56 pmBWI - SIN
2 stops61h 59mMultiple Airlines
Tue 2/251:55 amSIN - BWI
2 stops53h 01mMultiple Airlines
Deal found 1/20$1,111
This Air Canada deal was found by Cheapflights users on 1/20. 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 2/119:40 amDCA - SIN
2 stops33h 15mAir Canada
Tue 3/1110:00 amSIN - DCA
2 stops34h 57mAir Canada
Deal found 1/20$1,137

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 3/6

9:25 pm-5:35 pm

1 stop31h 10m

Singapore Changi

Mon 3/17

11:25 pm-8:30 pm

1 stop33h 05m

$873

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 4/24

10:00 pm-9:45 am

1 stop23h 45m

Singapore Changi

Sun 5/4

8:55 pm-4:35 pm

1 stop31h 40m

$886

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 3/27

7:10 pm-3:30 pm

1 stop32h 20m

Singapore Changi

Mon 4/7

5:15 pm-3:45 pm

1 stop34h 30m

$889

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 3/8

10:00 am-7:00 am

1 stop32h 00m

Singapore Changi

Fri 3/14

8:00 pm-7:50 am

1 stop23h 50m

$920

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 2/17

9:30 pm-6:15 am

2 stops43h 45m

Singapore Changi

Mon 2/24

5:00 pm-2:45 pm

1 stop34h 45m

$958

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 2/11

11:50 am-5:00 am

1 stop28h 10m

Singapore Changi

Tue 2/18

1:30 am-9:50 am

1 stop21h 20m

$960

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 2/16

8:05 pm-8:45 am

1 stop23h 40m

Singapore Changi

Mon 2/24

3:15 am-3:55 pm

1 stop25h 40m

$1,013

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 3/1

4:35 pm-9:55 pm

2 stops40h 20m

Singapore Changi

Mon 3/3

11:55 pm-2:10 pm

1 stop27h 15m

$1,043

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 3/6

2:00 pm-5:20 pm

2 stops38h 20m

Singapore Changi

Thu 3/13

7:40 pm-8:30 pm

2 stops36h 50m

$1,045

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 5/13

9:05 pm-9:00 am

1 stop23h 55m

Singapore Changi

Mon 6/2

6:45 pm-8:45 am

1 stop26h 00m

$1,065

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 January 17, 2025.

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 January 21, 2025.

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 January 21, 2025.
Read reviews from past customers who have flown ANA, Qatar Airways and Korean Air 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.
Korean Air
8.5
Very good
1,039 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.5

Food

8.1

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,039 reviews
Korean Air
8.5
Very good
1,039 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.5

Food

8.1

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

ANA
8.4
Very good
852 reviews
Korean Air
8.5
Very good
1,039 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.5

Food

8.1

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines
8.3
Very good
1,449 reviews
Korean Air
8.5
Very good
1,039 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.5

Food

8.1

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Emirates
8.1
Very good
3,360 reviews
Korean Air
8.5
Very good
1,039 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.5

Food

8.1

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Singapore Airlines
8.1
Very good
1,328 reviews
Korean Air
8.5
Very good
1,039 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.5

Food

8.1

Entertainment

8.2

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

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 ($873), SAUDIA ($889), and Etihad Airways ($897) 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 Qatar Airways ($487), Air India ($497), and Etihad Airways ($530).

  • 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 Washington, D.C. Reagan-National - Singapore Changi or Baltimore/Washington - 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, Katara Cultural Village, and Aspire Tower more than anywhere else. Museum of Islamic Art, Katara Cultural Village, and Aspire Tower can be accessed by traveling approximately 5.2 mi, 8.7 mi, and 10.6 mi, respectively from Doha Hamad Intl. Travelers in need of a car in Doha can rent one for about $30 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$834Average$1,044FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$904Average$1,697FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,009Average$1,401FlexibilityNo cancel feeOn-timeN/A
Qatar AirwaysCheapest$1,016Average$1,373FlexibilityNo cancel feeOn-time68%
American AirlinesCheapest$1,021Average$1,375FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$1,028Average$1,192FlexibilityNo cancel feeOn-time62%
Korean AirCheapest$1,100Average$1,332FlexibilityNo cancel feeOn-time81%
Singapore AirlinesCheapest$1,226Average$1,681FlexibilityNo cancel feeOn-time81%
EmiratesCheapest$1,666Average$1,719FlexibilityNo cancel feeOn-time75%
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