Singapore

$443+ 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
nov. 29 — dic. 61
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Cheap 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 octubre 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,112
(Kiwi.com)

One-way from

$443
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$974
Provider with most accurate pricing for Washington, D.C. (WAS)-Singapore Changi flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Singapore Changi flights.
From Washington, D.C. (WAS) to Singapore
One-way flight from Washington, D.C. (WAS) to Singapore
Highest demand for flights based on searches. 15% potential increase in price ($214 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($65 potential savings vs. average RT price).
Average for round-trip flights in October 2025

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 octubre 30, 2025.

This oojo deal was found by Cheapflights users on 10/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/71:30 pmIAD - SIN
1 stop30h 15mTurkish Airlines
sáb. 11/155:15 amSIN - IAD
1 stop43h 30mTurkish Airlines
Deal found 10/30$1,122
This United Airlines deal was found by Cheapflights users on 10/27. 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.
mar. 11/115:59 pmDCA - SIN
1 stop25h 01mUnited Airlines
mar. 11/1810:20 pmSIN - DCA
2 stops26h 09mUnited Airlines
Deal found 10/27$1,124
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/3012:35 pmIAD - SIN
1 stop30h 25mUnited Airlines
mar. 11/1110:45 amSIN - IAD
1 stop41h 55mUnited Airlines
Deal found 10/29$1,124
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/293:59 pmIAD - SIN
2 stops27h 01mUnited Airlines
jue. 11/610:10 amSIN - IAD
1 stop24h 15mUnited Airlines
Deal found 10/29$1,125
This oojo deal was found by Cheapflights users on 10/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/126:38 pmDCA - SIN
2 stops28h 17mCathay Pacific
mié. 11/197:40 amSIN - DCA
2 stops24h 04mCathay Pacific
Deal found 10/29$1,128
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/411:00 amDCA - SIN
2 stops32h 00mUnited Airlines
jue. 12/1110:10 amSIN - DCA
2 stops26h 49mUnited Airlines
Deal found 10/28$1,129
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/121:30 pmIAD - SIN
2 stops38h 50mMultiple Airlines
mar. 11/1812:25 amSIN - IAD
2 stops33h 01mMultiple Airlines
Deal found 10/29$1,131
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/710:40 amIAD - SIN
1 stop21h 35mMultiple Airlines
mié. 11/129:15 pmSIN - IAD
2 stops31h 15mMultiple Airlines
Deal found 10/29$1,134
This oojo deal was found by Cheapflights users on 10/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/76:50 amDCA - SIN
2 stops33h 50mCathay Pacific
jue. 11/138:15 pmSIN - DCA
2 stops35h 29mCathay Pacific
Deal found 10/29$1,138
This Booking.com deal was found by Cheapflights users on 10/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/281:30 pmIAD - SIN
1 stop30h 15mMultiple Airlines
vie. 12/511:15 amSIN - IAD
2 stops45h 05mMultiple Airlines
Deal found 10/29$1,143
This Booking.com deal was found by Cheapflights users on 10/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/61:30 pmIAD - SIN
1 stop31h 30mMultiple Airlines
mié. 12/1011:15 amSIN - IAD
2 stops45h 05mMultiple Airlines
Deal found 10/30$1,145
This Trip.com deal was found by Cheapflights users on 10/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/29:59 amDCA - SIN
2 stops31h 26mMultiple Airlines
sáb. 11/812:30 pmSIN - DCA
2 stops44h 30mMultiple Airlines
Deal found 10/30$1,147

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 octubre 30, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Singapore that are best for you.

Fly from

Washington, D.C.

Fly to

Singapore

Route

Depart

Return

Price

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

mié. 11/12

5:59 pm-8:00 am

1 stop25h 01m

Singapore Changi

mar. 11/18

10:10 am-9:43 pm

1 stop24h 33m

$1,124

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

mar. 11/11

5:59 pm-8:00 am

1 stop25h 01m

Singapore Changi

mar. 11/18

10:20 pm-11:29 am

2 stops26h 09m

$1,124

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

lun. 3/9

5:00 pm-8:15 pm

2 stops39h 15m

Singapore Changi

jue. 3/12

10:20 pm-4:47 pm

1 stop30h 27m

$1,125

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

jue. 12/4

11:00 am-8:00 am

2 stops32h 00m

Singapore Changi

jue. 12/11

10:10 am-9:36 pm

1 stop24h 26m

$1,129

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

jue. 2/5

4:10 pm-8:00 am

1 stop26h 50m

Singapore Changi

mar. 2/10

10:10 am-11:18 pm

2 stops26h 08m

$1,129

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

sáb. 2/28

2:35 pm-12:25 pm

3 stops32h 50m

Singapore Changi

sáb. 3/7

10:30 am-9:05 am

3 stops35h 35m

$1,144

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

mar. 11/11

8:05 pm-6:35 pm

2 stops33h 30m

Singapore Changi

lun. 11/17

3:15 am-3:55 pm

1 stop25h 40m

$1,147

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

lun. 12/1

8:05 pm-8:45 am

1 stop23h 40m

Singapore Changi

mié. 12/17

5:25 pm-3:55 pm

2 stops35h 30m

$1,151

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

vie. 4/24

4:30 pm-12:35 am

2 stops44h 05m

Singapore Changi

lun. 5/4

2:00 am-5:49 am

2 stops39h 49m

$1,194

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

lun. 2/23

8:05 pm-2:55 pm

1 stop29h 50m

Singapore Changi

sáb. 3/14

3:15 am-10:15 pm

2 stops31h 00m

$1,244

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 48 results
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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, January is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of $786). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of $1,145). 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 SG?

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 octubre 30, 2025.

When flying from Washington, D.C. to Singapore, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 27% versus a flight in the evening.

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 Thursday at noon when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 octubre 30, 2025.
Read reviews from past customers who have flown Qatar Airways, United Airlines, and Turkish Airlines 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.

Overall

7.4

Boarding

7.5

Comfort

7.4

Crew

7.9

Food

7.3

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

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

Overall

7.4

Boarding

7.5

Comfort

7.4

Crew

7.9

Food

7.3

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

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

Overall

7.4

Boarding

7.5

Comfort

7.4

Crew

7.9

Food

7.3

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

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

Overall

7.4

Boarding

7.5

Comfort

7.4

Crew

7.9

Food

7.3

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

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

Overall

7.4

Boarding

7.5

Comfort

7.4

Crew

7.9

Food

7.3

Entertainment

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

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

Overall

7.4

Boarding

7.5

Comfort

7.4

Crew

7.9

Food

7.3

Entertainment

7.4

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?

    United Airlines and Qatar Airways can get you from Washington, D.C. to Singapore in just under 25h 01m. Your travel time can differ by up to 8h 29m. The distance between Washington, D.C. and Singapore is about 9651 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 IndiGo ($466), Etihad Airways ($483), and Cathay Pacific ($553).

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

  • 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, January is the cheapest month in which you can book a flight from Washington, D.C. to Singapore (average of $786). Flying from Washington, D.C. to Singapore in June is currently the most expensive (average of $1,145). 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.

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 octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest$807Average$996FlexibilityNo cancel feeOn-timeN/A
Etihad AirwaysCheapest$833Average$964FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$841Average$975FlexibilityNo cancel feeOn-time77%
Korean AirCheapest$944Average$1,199FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$996Average$1,301FlexibilityNo cancel feeOn-time68%
JetBlueCheapest$1,043Average$1,807FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$1,191Average$1,384FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$1,196Average$1,223FlexibilityNo cancel feeOn-time71%
ANACheapest$1,499Average$2,103FlexibilityNo cancel feeOn-time80%

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