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$261+ Cheap flights from Washington, D.C. (WAS) to Singapore

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
May 18 — May 251
Mon 5/18
Mon 5/25
1 adult, Economy
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Cheap 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 April 18, 2026.

This Ovago deal was found by Cheapflights users on 4/13. 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.
Fri 5/89:00 pm
IAD
-
SIN
1 stop24h 20m
Qatar Airways
Sat 5/231:05 am
SIN
-
IAD
1 stop29h 05m
Qatar Airways
Deal found 4/13$1,131
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/23:10 pm
IAD
-
SIN
1 stop30h 30m
Etihad Airways
Sat 6/139:00 pm
SIN
-
IAD
1 stop24h 45m
Etihad Airways
Deal found 4/16$1,133
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 9/309:00 pm
IAD
-
SIN
1 stop23h 50m
Qatar Airways
Thu 10/291:40 pm
SIN
-
IAD
2 stops31h 40m
Qatar Airways
Deal found 4/17$1,138
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:05 pm
IAD
-
SIN
2 stops31h 35m
Multiple Airlines
Thu 11/128:15 pm
SIN
-
IAD
1 stop32h 40m
Multiple Airlines
Deal found 4/16$1,139
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:00 pm
IAD
-
SIN
2 stops25h 15m
Qatar Airways
Wed 9/233:15 am
SIN
-
IAD
1 stop24h 25m
Qatar Airways
Deal found 4/16$1,140
This Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:00 pm
IAD
-
SIN
1 stop23h 50m
Qatar Airways
Sat 10/313:15 am
SIN
-
IAD
1 stop25h 40m
Qatar Airways
Deal found 4/17$1,141
This KAYAK deal was found by Cheapflights users on 4/13. 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.
Tue 4/141:20 pm
IAD
-
SIN
1 stop33h 50m
Turkish Airlines
Thu 5/1412:50 pm
SIN
-
IAD
1 stop34h 45m
Turkish Airlines
Deal found 4/13$1,143
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/59:00 pm
IAD
-
SIN
2 stops35h 25m
Qatar Airways
Sat 5/237:40 pm
SIN
-
IAD
1 stop34h 40m
Qatar Airways
Deal found 4/16$1,144
This FlightHub deal was found by Cheapflights users on 4/15. 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 5/99:00 pm
IAD
-
SIN
2 stops39h 10m
Multiple Airlines
Fri 5/227:40 pm
SIN
-
IAD
1 stop34h 30m
Multiple Airlines
Deal found 4/15$1,147
This oojo deal was found by Cheapflights users on 4/13. 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 4/169:00 pm
IAD
-
SIN
2 stops33h 15m
Qatar Airways
Thu 5/149:15 pm
SIN
-
IAD
2 stops32h 55m
Qatar Airways
Deal found 4/13$1,148
This Justfly.com deal was found by Cheapflights users on 4/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:59 am
DCA
-
SIN
2 stops59h 01m
Air Canada
Tue 12/18:50 am
SIN
-
DCA
2 stops40h 29m
Air Canada
Deal found 4/13$1,149
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2311:15 am
IAD
-
SIN
1 stop22h 00m
Qatar Airways
Sat 10/318:15 pm
SIN
-
IAD
1 stop32h 40m
Qatar Airways
Deal found 4/17$1,149

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

Keep the following information in mind while searching for Washington, D.C. to Singapore flight deals. Data was last updated April 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,131
(Ovago)

One-way from

$261
(FlightHub)

Popular in

December

Cheapest in

August

Average price

$1,226
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.
Search Deals
From Washington, D.C. (WAS) to Singapore
Search Deals
One-way flight from Washington, D.C. (WAS) to Singapore
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($218 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($72 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
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 April 18, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 9/21

9:45 pm-5:55 pm

1 stop32h 10m

Singapore Changi

Thu 9/24

10:25 am-11:35 am

1 stop37h 10m

$1,169

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 10/2

11:15 am-9:15 pm

1 stop22h 00m

Singapore Changi

Sun 11/1

8:15 pm-3:55 pm

1 stop32h 40m

$1,181

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 5/12

9:45 pm-11:10 am

1 stop25h 25m

Singapore Changi

Wed 5/20

11:10 am-11:35 am

1 stop36h 25m

$1,184

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 5/12

9:00 pm-4:15 pm

1 stop31h 15m

Singapore Changi

Fri 5/22

7:40 pm-6:10 pm

1 stop34h 30m

$1,252

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 5/11

2:54 pm-9:20 am

2 stops30h 26m

Singapore Changi

Tue 5/19

1:05 am-11:28 pm

2 stops34h 23m

$1,440

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 5/31

9:00 pm-11:25 am

2 stops26h 25m

Singapore Changi

Sun 6/7

4:35 pm-6:10 pm

2 stops37h 35m

$1,451

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 5/30

9:00 pm-11:25 am

2 stops26h 25m

Singapore Changi

Wed 7/15

3:15 am-3:40 pm

1 stop24h 25m

$1,453

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 6/15

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Mon 7/13

9:00 pm-9:45 am

1 stop24h 45m

$1,511

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Sat 5/2

11:41 am-9:20 am

2 stops33h 39m

Singapore Changi

Wed 5/6

1:05 am-12:06 am

2 stops35h 01m

$1,633

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 8/10

9:00 pm-10:15 am

2 stops25h 15m

Singapore Changi

Fri 8/14

4:35 pm-8:45 am

2 stops28h 10m

$1,664

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/13

Showing 1-10 of 60 resultsSorted by cheapest first
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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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Singapore

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 $343). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of $1,073). 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.

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 April 18, 2026.
Read reviews from past customers who have flown Qatar Airways,United Airlines, andEtihad Airways from Washington, D.C. to Singapore. 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.
Qatar Airways
7.4
Good
3,730 reviews

Food

7.3

Comfort

7.3

Entertainment

7.3

Overall

7.4

Crew

7.9

Boarding

7.5

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Qatar Airways
7.4
Good
3,730 reviews
Qatar Airways
7.4
Good
3,730 reviews

Food

7.3

Comfort

7.3

Entertainment

7.3

Overall

7.4

Crew

7.9

Boarding

7.5

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
United Airlines
7.4
Good
9,605 reviews
Qatar Airways
7.4
Good
3,730 reviews

Food

7.3

Comfort

7.3

Entertainment

7.3

Overall

7.4

Crew

7.9

Boarding

7.5

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Etihad Airways
7.3
Good
1,431 reviews
Qatar Airways
7.4
Good
3,730 reviews

Food

7.3

Comfort

7.3

Entertainment

7.3

Overall

7.4

Crew

7.9

Boarding

7.5

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Turkish Airlines
7.3
Good
4,308 reviews
Qatar Airways
7.4
Good
3,730 reviews

Food

7.3

Comfort

7.3

Entertainment

7.3

Overall

7.4

Crew

7.9

Boarding

7.5

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
JetBlue
7.2
Good
2,946 reviews
Qatar Airways
7.4
Good
3,730 reviews

Food

7.3

Comfort

7.3

Entertainment

7.3

Overall

7.4

Crew

7.9

Boarding

7.5

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

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.

  • How long is the flight from Washington, D.C. to Singapore?

    Turkish Airlines, Qatar Airways, and United Airlines can get you from Washington, D.C. to Singapore in just under 22h. Your travel time can differ by up to 12h 20m. The distance between Washington, D.C. and Singapore is about 9644 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 ($433), Etihad Airways ($481), and Qatar Airways ($485).

  • 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.

  • 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 $343). Flying from Washington, D.C. to Singapore in December is currently the most expensive (average of $1,073). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 7 airlines flying from Washington, D.C. to Singapore

Discover the top 7 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 April 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$743Average$1,328FlexibilityNo cancel feeOn-time81%
Air IndiaCheapest$807Average$996FlexibilityNo cancel feeOn-timeN/A
Etihad AirwaysCheapest$828Average$985FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$917Average$1,105FlexibilityNo cancel feeOn-time77%
Qatar AirwaysCheapest$1,063Average$1,371FlexibilityNo cancel feeOn-time68%
United AirlinesCheapest$1,125Average$1,401FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$1,245Average$2,103FlexibilityNo cancel feeOn-time62%

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