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

Departing from Singapore to Washington, D.C. will take you 24h 45m. Airlines will cover a distance of 9644 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

The cheapest airline one-way is Air China, with whom users have recently found tickets for as low as $436. However, be on the lookout for offers from SWISS and EVA Air, as they are both options that can get you from Singapore to Washington, D.C. for a low price.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

When deciding which route to take from Singapore to Washington, D.C. consider Singapore Changi - Baltimore/Washington, Singapore Changi - Washington, D.C. Dulles Intl or Singapore Changi - Washington, D.C. Reagan-National as they are the most popular.

What are the most popular airlines that fly from Singapore to Washington, D.C.?

United Airlines, Air China and EVA Air are the most popular airlines when flying from Singapore to Washington, D.C..

What is the cheapest time of day to fly from SG to WAS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Singapore to Washington, D.C. as you normally would.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Singapore to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$489+ Cheap Flights from Singapore to Washington, D.C.

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

Cheapest

Best

Last-minute

One-way

Cheapest flights from Singapore to Washington, D.C.
Explore the most affordable flight options available from Singapore to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 8, 2026.

Mon 11/25:45 pm -

1 stop37h 45m

Tue 11/1710:00 pm -

1 stop34h 55m

Deal found 10/4

$796

Wed 11/42:20 am -

2 stops31h 40m

Thu 11/126:00 am -

2 stops29h 50m

Deal found 10/8

$935

Tue 11/38:15 am -

2 stops26h 34m

Tue 11/106:00 am -

2 stops35h 40m

Deal found 10/6

$958

Mon 11/23:00 am -

2 stops28h 30m

Tue 11/1010:00 pm -

1 stop29h 15m

Deal found 10/6

$984

Sun 10/1810:25 am -

1 stop37h 05m

Mon 11/210:20 pm -

1 stop21h 25m

Deal found 10/6

$990

Mon 10/1911:10 am -

1 stop36h 20m

Mon 11/22:30 pm -

1 stop30h 30m

Deal found 10/5

$991

Sat 11/74:35 am -

1 stop27h 50m

Mon 11/301:30 pm -

1 stop39h 10m

Deal found 10/5

$1,007

Thu 11/1910:25 am -

1 stop46h 00m

Thu 11/269:20 pm -

1 stop44h 30m

Deal found 10/5

$1,034

Sun 11/110:25 am -

1 stop47h 00m

Sun 11/89:20 pm -

1 stop22h 25m

Deal found 10/3

$1,040

Thu 11/55:10 am -

1 stop44h 35m

Thu 11/129:20 pm -

1 stop22h 25m

Deal found 10/8

$1,041

Sun 11/12:20 am -

2 stops26h 46m

Tue 11/176:00 am -

2 stops35h 40m

Deal found 10/4

$1,117

Thu 11/192:20 am -

2 stops48h 24m

Fri 11/276:00 am -

2 stops35h 40m

Deal found 10/5

$1,126

Best flights from Singapore to Washington, D.C.
Discover carefully curated flight deals from Singapore to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 8, 2026.

Wed 2/310:25 pm -

2 stops30h 34m

Sun 2/75:19 pm -

2 stops48h 21m

Deal found 10/7

$1,013

Sun 11/110:25 am -

1 stop47h 00m

Sun 11/89:20 pm -

1 stop22h 25m

Deal found 10/3

$1,045

Sun 10/189:50 pm -

2 stops26h 56m

Mon 11/27:50 am -

2 stops28h 00m

Deal found 10/6

$1,186

Wed 10/219:00 pm -

1 stop24h 45m

Sat 10/243:10 pm -

1 stop30h 25m

Deal found 10/6

$1,211

Tue 11/310:20 pm -

2 stops26h 24m

Tue 11/104:15 pm -

1 stop26h 45m

Deal found 10/6

$1,280

Mon 10/198:05 am -

2 stops33h 35m

Mon 11/27:46 am -

2 stops28h 04m

Deal found 10/5

$1,160

Sun 11/14:35 am -

1 stop28h 50m

Sun 11/87:05 am -

2 stops41h 05m

Deal found 10/3

$1,210

Mon 11/210:20 pm -

2 stops31h 08m

Tue 11/175:49 pm -

1 stop25h 11m

Deal found 10/4

$1,281

Thu 11/1211:15 pm -

1 stop25h 30m

Mon 11/161:30 pm -

1 stop31h 30m

Deal found 10/6

$1,318

Thu 11/128:15 am -

2 stops34h 29m

Mon 11/167:46 am -

2 stops28h 04m

Deal found 10/7

$1,241

Mon 10/198:45 pm -

2 stops31h 10m

Mon 11/22:25 pm -

3 stops34h 15m

Deal found 10/5

$1,255

Thu 11/1910:10 am -

1 stop25h 20m

Thu 11/2612:50 pm -

2 stops30h 10m

Deal found 10/4

$1,304

Sat 11/218:15 am -

2 stops34h 25m

Sun 12/66:00 am -

2 stops35h 40m

Deal found 10/8

$1,296

Fri 11/2010:20 pm -

2 stops32h 15m

Fri 11/2711:10 am -

1 stop30h 45m

Deal found 10/5

$1,307

Fri 11/2010:20 pm -

2 stops25h 09m

Fri 11/275:49 pm -

1 stop37h 26m

Deal found 10/5

$1,321

Sun 11/811:15 am -

3 stops34h 45m

Mon 11/307:40 pm -

3 stops30h 30m

Deal found 10/5

$1,442

Wed 2/310:45 am -

2 stops44h 59m

Sun 2/75:54 pm -

1 stop37h 21m

Deal found 10/5

$1,330

Sat 11/2110:20 pm -

2 stops29h 07m

Sat 11/287:45 am -

1 stop35h 15m

Deal found 10/7

$1,399

Last-minute flights from Singapore to Washington, D.C.
Discover last-minute flight deals from Singapore to Washington, D.C.. Data last updated October 8, 2026 and is based on user searches.

Sun 10/1810:25 am -

1 stop37h 05m

Mon 11/210:20 pm -

1 stop21h 25m

Deal found 10/6

$990

Mon 10/1911:10 am -

1 stop36h 20m

Mon 11/22:30 pm -

1 stop30h 30m

Deal found 10/5

$991

Sun 11/110:25 am -

1 stop47h 00m

Sun 11/89:20 pm -

1 stop22h 25m

Deal found 10/3

$1,040

Sun 11/12:20 am -

2 stops26h 46m

Tue 11/176:00 am -

2 stops35h 40m

Deal found 10/4

$1,117

Mon 11/25:45 pm -

1 stop37h 45m

Tue 11/1710:00 pm -

1 stop34h 55m

Deal found 10/4

$796

Mon 11/23:00 am -

2 stops28h 30m

Tue 11/1010:00 pm -

1 stop29h 15m

Deal found 10/6

$984

Tue 11/38:15 am -

2 stops26h 34m

Tue 11/106:00 am -

2 stops35h 40m

Deal found 10/6

$958

Wed 11/42:20 am -

2 stops31h 40m

Thu 11/126:00 am -

2 stops29h 50m

Deal found 10/8

$935

Thu 11/55:10 am -

1 stop44h 35m

Thu 11/129:20 pm -

1 stop22h 25m

Deal found 10/8

$1,041

Sat 11/74:35 am -

1 stop27h 50m

Mon 11/301:30 pm -

1 stop39h 10m

Deal found 10/5

$1,007

Thu 11/1910:25 am -

1 stop46h 00m

Thu 11/269:20 pm -

1 stop44h 30m

Deal found 10/5

$1,034

Thu 11/192:20 am -

2 stops48h 24m

Fri 11/276:00 am -

2 stops35h 40m

Deal found 10/5

$1,126

One-way flights from Singapore to Washington, D.C.
Search for one-way flight options from Singapore to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated October 8, 2026.

Fri 12/257:25 pm -

1 stop26h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/8

$489

Sun 12/207:25 pm -

1 stop26h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/4

$491

Wed 12/237:25 pm -

1 stop26h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/3

$492

Thu 12/247:25 pm -

1 stop26h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/8

$506

Mon 12/75:45 pm -

1 stop37h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/6

$538

Mon 11/305:45 pm -

1 stop37h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/8

$549

Thu 12/105:45 pm -

1 stop37h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/8

$551

Mon 3/15:45 pm -

1 stop37h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/4

$581

Thu 12/35:45 pm -

1 stop37h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/7

$593

Mon 3/11:35 pm -

2 stops32h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/4

$635

Thu 12/311:55 pm -

3 stops57h 16m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/7

$638

Sun 11/2911:15 pm -

1 stop25h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/4

$642

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

Round-trip from	$796 (Booking.com)
One-way from	$489 (SmartFares)
Popular in	July
Cheapest in	October
Average price	$1,079

From Singapore to Washington, D.C. (WAS)

Search Deals

One-way flight from Singapore to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($251 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($92 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SingaporeWashington, D.C.

SIN Singapore Changi - IAD Washington, D.C. Dulles Intl

SINIAD

Singapore Changi

Sun 12/13

11:15 pm-7:25 pm

1 stop33h 10m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:30 pm

Nonstop0h 00m

$729

SingaporeWashington, D.C.

SIN Singapore Changi - DCA Washington, D.C. Reagan-National

SINDCA

Singapore Changi

Mon 10/26

2:25 pm-4:25 pm

2 stops38h 00m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:30 pm

Nonstop0h 00m

$765

SingaporeWashington, D.C.

SIN Singapore Changi - IAD Washington, D.C. Dulles Intl

SINIAD

Singapore Changi

Sat 11/28

10:25 am-7:25 pm

1 stop46h 00m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:30 pm

Nonstop0h 00m

$829

SingaporeWashington, D.C.

SIN Singapore Changi - DCA Washington, D.C. Reagan-National

SINDCA

Singapore Changi

Sat 1/23

6:25 pm-8:00 pm

3 stops38h 35m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:30 pm

Nonstop0h 00m

$835

SingaporeWashington, D.C.

SIN Singapore Changi - DCA Washington, D.C. Reagan-National

SINDCA

Singapore Changi

Sun 1/24

1:15 pm-8:00 pm

2 stops43h 45m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:30 pm

Nonstop0h 00m

$847

SingaporeWashington, D.C.

SIN Singapore Changi - IAD Washington, D.C. Dulles Intl

SINIAD

Singapore Changi

Sun 1/24

11:55 pm-2:30 pm

1 stop27h 35m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:30 pm

Nonstop0h 00m

$853

SingaporeWashington, D.C.

SIN Singapore Changi - IAD Washington, D.C. Dulles Intl

SINIAD

Singapore Changi

Fri 1/22

11:55 pm-2:30 pm

1 stop27h 35m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:30 pm

Nonstop0h 00m

$853

SingaporeWashington, D.C.

SIN Singapore Changi - DCA Washington, D.C. Reagan-National

SINDCA

Singapore Changi

Sun 1/17

2:25 pm-9:59 pm

2 stops44h 34m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-12:30 pm

Nonstop0h 00m

$876

SingaporeWashington, D.C.

SIN Singapore Changi - IAD Washington, D.C. Dulles Intl

SINIAD

Singapore Changi

Sun 12/27

7:25 pm-9:00 am

1 stop26h 35m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:30 pm

Nonstop0h 00m

$891

SingaporeWashington, D.C.

SIN Singapore Changi - IAD Washington, D.C. Dulles Intl

SINIAD

Singapore Changi

Sun 1/24

6:35 pm-8:15 pm

3 stops38h 40m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:30 pm

Nonstop0h 00m

$906

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/8

Showing 1-10 of 38 resultsSorted by cheapest first

Best time to book a flight from Singapore to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Singapore with our price prediction graph.

SIN-IAD

SIN-DCA

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 Singapore to Washington, D.C.

SG0-WAS

SIN-IAD

SIN-DCA

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

Currently, October is the cheapest month in which you can book a flight from Singapore to Washington, D.C. (average of $1,079). Flying from Singapore to Washington, D.C. in July is currently the most expensive (average of $2,488). 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 Washington, D.C.

Get a feel of what it's like to fly with United Airlines from Singapore to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

10,316 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

United Airlines

7.4

Good

10,316 reviews

United Airlines

7.4

Good

10,316 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

How long is the flight from Singapore to Washington, D.C.?
Departing from Singapore to Washington, D.C. will take you 24h 45m. Airlines will cover a distance of 9644 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines to fly from Singapore to Washington, D.C. one-way?
The cheapest airline one-way is Air China, with whom users have recently found tickets for as low as $436. However, be on the lookout for offers from SWISS and EVA Air, as they are both options that can get you from Singapore to Washington, D.C. for a low price.
What are the most popular routes from Singapore to Washington, D.C.?
When deciding which route to take from Singapore to Washington, D.C. consider Singapore Changi - Baltimore/Washington, Singapore Changi - Washington, D.C. Dulles Intl or Singapore Changi - Washington, D.C. Reagan-National as they are the most popular.
Can I find deals for flights from Singapore to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Singapore to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Singapore to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Singapore to Washington, D.C..
Can I find deals for business class flights from Singapore to Washington, D.C.?
Yes. Cheapflights offers flight deals from Singapore to Washington, D.C. 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 Singapore to Washington, D.C.?
Currently, October is the cheapest month in which you can book a flight from Singapore to Washington, D.C. (average of $1,079). Flying from Singapore to Washington, D.C. in July is currently the most expensive (average of $2,488). 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

Alexandria

Arlington

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Owings Mills

Lanham

Herndon

Tysons

Reston

Hyattsville

Rockville

Springfield

Fredericksburg

Falls Church

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Hunt Valley

Waldorf

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Alternative routes for Singapore to Washington, D.C.

Top 3 airlines flying from Singapore to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Air China	Cheapest$1,079	Average$1,246	FlexibilityNo cancel fee	On-time67%
EVA Air	Cheapest$1,188	Average$1,489	FlexibilityNo cancel fee	On-time74%
United Airlines	Cheapest$1,219	Average$1,584	FlexibilityNo cancel fee	On-time69%

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$489+ Cheap flights from Singapore to Washington, D.C. (WAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Singapore to Washington, D.C. with Cheapflights

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

Cheapest flights from Singapore to Washington, D.C.Explore the most affordable flight options available from Singapore to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 8, 2026.

Explore the most affordable flight options available from Singapore to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 8, 2026.

Best flights from Singapore to Washington, D.C.Discover carefully curated flight deals from Singapore to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 8, 2026.

Discover carefully curated flight deals from Singapore to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 8, 2026.

Last-minute flights from Singapore to Washington, D.C.Discover last-minute flight deals from Singapore to Washington, D.C.. Data last updated October 8, 2026 and is based on user searches.

Discover last-minute flight deals from Singapore to Washington, D.C.. Data last updated October 8, 2026 and is based on user searches.

One-way flights from Singapore to Washington, D.C.Search for one-way flight options from Singapore to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated October 8, 2026.

Search for one-way flight options from Singapore to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated October 8, 2026.

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

Round-trip from

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Popular in

Cheapest in

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Cheapflights Fare Finder

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

Best time to book a flight from Singapore to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Singapore with our price prediction graph.

Cheapflights Insights

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

Reviews of airlines servicing Washington, D.C.

Get a feel of what it's like to fly with United Airlines from Singapore to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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

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

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

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

Traveling to a place near Washington, D.C.?

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Alternative routes for Singapore to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Washington, D.C. by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Singapore to Washington, D.C. by cabin class

Find flights from Singapore to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.

Singapore and Washington, D.C. flights

Browse other Singapore and Washington, D.C. flight options. Last updated on October 8, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Other flights to Washington, D.C.

Explore flights to Washington, D.C. departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 8, 2026.

Top 3 airlines flying from Singapore to Washington, D.C.

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Cheapest flights from Singapore to Washington, D.C.
Explore the most affordable flight options available from Singapore to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 8, 2026.

Best flights from Singapore to Washington, D.C.
Discover carefully curated flight deals from Singapore to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 8, 2026.

Last-minute flights from Singapore to Washington, D.C.
Discover last-minute flight deals from Singapore to Washington, D.C.. Data last updated October 8, 2026 and is based on user searches.

One-way flights from Singapore to Washington, D.C.
Search for one-way flight options from Singapore to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated October 8, 2026.