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

Departing from Singapore to Washington, D.C. will take you 25h 11m. Airlines will cover a distance of 9651 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 $438. 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.

$550+ 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 August 24, 2026.

Thu 10/87:00 am -

3 stops46h 30m

Thu 10/159:58 am -

2 stops31h 17m

Deal found 8/24

$889

Thu 10/153:00 am -

2 stops28h 30m

Tue 10/2011:00 pm -

1 stop34h 55m

Deal found 8/22

$997

Sun 9/209:50 pm -

2 stops30h 39m

Sun 9/277:42 am -

2 stops34h 28m

Deal found 8/23

$1,056

Thu 9/35:55 pm -

1 stop37h 35m

Wed 9/163:10 pm -

1 stop30h 30m

Deal found 8/21

$1,067

Fri 10/29:00 am -

1 stop22h 30m

Mon 10/53:10 pm -

1 stop30h 30m

Deal found 8/24

$1,073

Tue 10/63:15 am -

2 stops30h 43m

Wed 10/145:40 am -

2 stops46h 05m

Deal found 8/23

$1,080

Thu 9/1011:25 pm -

1 stop32h 05m

Sun 9/203:10 pm -

1 stop30h 30m

Deal found 8/22

$1,088

Sun 10/47:00 am -

2 stops25h 25m

Sun 10/119:55 am -

2 stops31h 20m

Deal found 8/21

$1,103

Sun 10/47:00 am -

2 stops24h 59m

Sun 10/1111:00 am -

2 stops30h 15m

Deal found 8/21

$1,103

Mon 9/79:50 pm -

2 stops54h 39m

Thu 9/1010:17 am -

2 stops31h 53m

Deal found 8/24

$1,108

Sat 10/247:00 am -

2 stops44h 45m

Mon 11/25:15 pm -

2 stops48h 45m

Deal found 8/21

$1,112

Sat 10/31:55 am -

2 stops26h 34m

Sun 10/117:45 am -

2 stops28h 35m

Deal found 8/20

$1,120

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 August 24, 2026.

Wed 10/282:20 am -

2 stops30h 39m

Mon 11/26:00 am -

2 stops35h 40m

Deal found 8/19

$1,180

Fri 10/168:05 am -

2 stops25h 35m

Tue 10/207:45 am -

2 stops28h 35m

Deal found 8/22

$1,190

Wed 9/93:15 am -

2 stops32h 44m

Sun 9/209:00 pm -

1 stop30h 45m

Deal found 8/22

$1,196

Sun 10/48:35 pm -

2 stops25h 11m

Sun 10/115:59 pm -

1 stop36h 36m

Deal found 8/20

$1,285

Fri 9/410:35 am -

1 stop34h 15m

Mon 9/710:55 am -

1 stop33h 40m

Deal found 8/20

$1,516

Mon 12/2111:15 pm -

1 stop30h 50m

Mon 5/109:30 pm -

1 stop33h 10m

Deal found 8/20

$1,727

Wed 10/78:45 pm -

1 stop31h 52m

Wed 10/145:43 pm -

1 stop25h 57m

Deal found 8/23

$1,748

Tue 2/22:20 am -

2 stops31h 21m

Sun 2/76:30 am -

2 stops35h 10m

Deal found 8/22

$1,184

Sat 10/31:55 am -

2 stops25h 04m

Sun 10/117:17 am -

2 stops29h 03m

Deal found 8/20

$1,238

Sun 9/208:35 pm -

2 stops25h 11m

Sun 9/275:47 pm -

1 stop36h 48m

Deal found 8/23

$1,290

Tue 10/62:00 am -

2 stops33h 50m

Wed 10/146:15 am -

3 stops42h 15m

Deal found 8/23

$1,297

Fri 10/28:45 am -

1 stop25h 45m

Mon 10/52:40 pm -

2 stops27h 35m

Deal found 8/24

$1,356

Sat 9/59:00 pm -

1 stop23h 50m

Tue 9/810:55 am -

1 stop40h 05m

Deal found 8/21

$1,518

Thu 9/38:05 am -

2 stops25h 54m

Sun 9/68:00 am -

2 stops28h 20m

Deal found 8/20

$1,408

Wed 2/310:45 am -

2 stops44h 38m

Sun 2/76:00 pm -

1 stop37h 15m

Deal found 8/21

$1,410

Sun 10/48:35 pm -

2 stops27h 21m

Sun 10/116:50 pm -

1 stop23h 25m

Deal found 8/20

$1,412

Wed 9/212:50 am -

2 stops35h 40m

Sun 9/610:55 am -

1 stop33h 40m

Deal found 8/20

$1,735

Sat 9/51:10 pm -

3 stops34h 33m

Tue 9/87:15 pm -

2 stops28h 40m

Deal found 8/22

$1,467

Wed 10/711:25 pm -

2 stops30h 59m

Wed 10/149:30 pm -

1 stop33h 10m

Deal found 8/23

$2,009

Thu 10/296:35 am -

2 stops27h 22m

Mon 11/25:49 pm -

1 stop25h 11m

Deal found 8/19

$1,467

Wed 10/71:55 pm -

2 stops42h 05m

Wed 10/144:50 pm -

3 stops31h 40m

Deal found 8/23

$1,527

Fri 10/1611:25 pm -

1 stop32h 15m

Tue 10/208:16 pm -

2 stops31h 54m

Deal found 8/22

$2,116

Sun 10/257:25 pm -

1 stop26h 40m

Thu 11/262:35 pm -

1 stop30h 00m

Deal found 8/23

$4,681

Thu 9/38:45 am -

1 stop25h 45m

Wed 9/165:45 pm -

1 stop24h 30m

Deal found 8/20

$1,521

Sat 9/59:00 pm -

2 stops38h 00m

Tue 9/83:04 pm -

2 stops35h 01m

Deal found 8/21

$2,148

Thu 10/81:25 am -

1 stop21h 40m

Sun 10/2512:50 pm -

1 stop28h 10m

Deal found 8/24

$6,169

Sun 9/201:25 am -

1 stop21h 40m

Wed 9/301:15 pm -

1 stop22h 40m

Deal found 8/21

$6,191

Mon 9/78:05 am -

3 stops43h 35m

Thu 9/104:43 pm -

3 stops43h 37m

Deal found 8/24

$2,157

Thu 9/172:00 am -

2 stops42h 55m

Fri 9/2510:55 am -

1 stop39h 55m

Deal found 8/20

$7,093

Mon 10/1210:50 pm -

1 stop24h 15m

Thu 10/221:15 pm -

1 stop22h 40m

Deal found 8/21

$6,218

Last-minute flights from Singapore to Washington, D.C.
Discover last-minute flight deals from Singapore to Washington, D.C.. Data last updated August 24, 2026 and is based on user searches.

Wed 8/261:55 am -

2 stops27h 59m

Mon 9/77:03 am -

2 stops35h 07m

Deal found 8/21

$1,151

Thu 8/278:05 am -

2 stops26h 47m

Mon 9/77:00 am -

2 stops29h 20m

Deal found 8/20

$1,128

Wed 9/21:55 am -

2 stops26h 34m

Wed 9/167:42 am -

2 stops28h 38m

Deal found 8/20

$1,153

Thu 9/35:55 pm -

1 stop37h 35m

Wed 9/163:10 pm -

1 stop30h 30m

Deal found 8/21

$1,067

Fri 9/41:55 am -

2 stops29h 09m

Tue 9/87:03 am -

2 stops35h 07m

Deal found 8/22

$1,164

Mon 9/79:50 pm -

2 stops54h 39m

Thu 9/1010:17 am -

2 stops31h 53m

Deal found 8/24

$1,108

Mon 9/711:25 pm -

1 stop32h 05m

Thu 9/103:10 pm -

1 stop30h 30m

Deal found 8/24

$1,132

Wed 9/91:55 am -

2 stops26h 34m

Sun 9/206:30 am -

2 stops29h 50m

Deal found 8/22

$1,126

Wed 9/91:55 am -

2 stops27h 51m

Sun 9/206:01 am -

2 stops30h 19m

Deal found 8/22

$1,158

Thu 9/1011:25 pm -

1 stop32h 05m

Sun 9/203:10 pm -

1 stop30h 30m

Deal found 8/22

$1,088

Mon 9/145:55 pm -

1 stop37h 35m

Sun 9/273:10 pm -

1 stop30h 30m

Deal found 8/22

$1,135

Sun 9/209:50 pm -

2 stops30h 39m

Sun 9/277:42 am -

2 stops34h 28m

Deal found 8/23

$1,056

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 August 24, 2026.

Mon 11/211:55 pm -

1 stop31h 35m

Deal found 8/21

$550

Mon 10/265:45 pm -

1 stop37h 45m

Deal found 8/21

$578

Mon 9/145:55 pm -

1 stop37h 35m

Deal found 8/20

$585

Sat 11/149:05 am -

2 stops38h 47m

Deal found 8/22

$627

Sat 11/149:05 am -

2 stops40h 04m

Deal found 8/22

$629

Thu 12/245:45 pm -

1 stop37h 45m

Deal found 8/21

$649

Mon 2/155:45 pm -

1 stop37h 45m

Deal found 8/21

$654

Wed 9/3010:50 pm -

3 stops48h 43m

Deal found 8/21

$656

Wed 9/3010:50 pm -

3 stops49h 10m

Deal found 8/21

$656

Wed 9/3010:50 pm -

3 stops59h 09m

Deal found 8/21

$656

Wed 9/237:30 am -

3 stops37h 55m

Deal found 8/23

$677

Sun 9/209:20 pm -

3 stops37h 23m

Deal found 8/21

$678

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

Round-trip from	$889 (Trip.com)
One-way from	$550 (FlightHub)
Popular in	July
Cheapest in	September
Average price	$1,414

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. 17% potential increase in price ($308 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($97 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 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 - DCA Washington, D.C. Reagan-National

SINDCA

Singapore Changi

Wed 10/28

2:20 am-8:59 pm

2 stops30h 39m

Washington, D.C. Reagan-National

Mon 11/2

6:00 am-6:40 am

2 stops35h 40m

$1,180

SingaporeWashington, D.C.

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

SINDCA

Singapore Changi

Tue 2/2

2:20 am-8:41 pm

2 stops31h 21m

Washington, D.C. Reagan-National

Sun 2/7

6:30 am-6:40 am

2 stops35h 10m

$1,184

SingaporeWashington, D.C.

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

SINDCA

Singapore Changi

Fri 10/16

8:05 am-9:40 pm

2 stops25h 35m

Washington, D.C. Reagan-National

Tue 10/20

7:45 am-12:20 am

2 stops28h 35m

$1,190

SingaporeWashington, D.C.

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

SINIAD

Singapore Changi

Wed 9/9

3:15 am-11:59 pm

2 stops32h 44m

Washington, D.C. Dulles Intl

Sun 9/20

9:00 pm-3:45 pm

1 stop30h 45m

$1,196

SingaporeBaltimore

SIN Singapore Changi - BWI Baltimore/Washington

SINBWI

Singapore Changi

Sat 10/3

1:55 am-2:59 pm

2 stops25h 04m

Baltimore/Washington

Sun 10/11

7:17 am-12:20 am

2 stops29h 03m

$1,238

SingaporeWashington, D.C.

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

SINDCA

Singapore Changi

Sun 10/4

8:35 pm-9:46 am

2 stops25h 11m

Washington, D.C. Reagan-National

Sun 10/11

5:59 pm-6:35 pm

1 stop36h 36m

$1,285

SingaporeWashington, D.C.

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

SINDCA

Singapore Changi

Sun 9/20

8:35 pm-9:46 am

2 stops25h 11m

Washington, D.C. Reagan-National

Sun 9/27

5:47 pm-6:35 pm

1 stop36h 48m

$1,290

SingaporeBaltimore

SIN Singapore Changi - BWI Baltimore/Washington

SINBWI

Singapore Changi

Tue 10/6

2:00 am-11:50 pm

2 stops33h 50m

Baltimore/Washington

Wed 10/14

6:15 am-12:30 pm

3 stops42h 15m

$1,297

SingaporeWashington, D.C.

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

SINDCA

Singapore Changi

Fri 10/2

8:45 am-10:30 pm

1 stop25h 45m

Washington, D.C. Reagan-National

Mon 10/5

2:40 pm-6:15 am

2 stops27h 35m

$1,356

SingaporeWashington, D.C.

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

SINDCA

Singapore Changi

Thu 9/3

8:05 am-9:59 pm

2 stops25h 54m

Washington, D.C. Reagan-National

Sun 9/6

8:00 am-12:20 am

2 stops28h 20m

$1,408

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/24

Showing 1-10 of 49 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-DCA

SIN-IAD

SIN-BWI

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-DCA

SIN-IAD

SIN-BWI

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

Currently, February is the cheapest month in which you can book a flight from Singapore to Washington, D.C. (average of $1,127). Flying from Singapore to Washington, D.C. in November is currently the most expensive (average of $3,125). 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

10,116 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

10,116 reviews

United Airlines

7.4

Good

10,116 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 25h 11m. Airlines will cover a distance of 9651 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 $438. 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, February is the cheapest month in which you can book a flight from Singapore to Washington, D.C. (average of $1,127). Flying from Singapore to Washington, D.C. in November is currently the most expensive (average of $3,125). 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

Owings Mills

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Tysons

Lanham

Reston

Herndon

Rockville

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Falls Church

Hanover

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Hunt Valley

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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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$550+ Cheap flights from Singapore to Washington, D.C. (WAS)

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.

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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 August 24, 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 August 24, 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 August 24, 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 August 24, 2026.

Last-minute flights from Singapore to Washington, D.C.Discover last-minute flight deals from Singapore to Washington, D.C.. Data last updated August 24, 2026 and is based on user searches.

Discover last-minute flight deals from Singapore to Washington, D.C.. Data last updated August 24, 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 August 24, 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 August 24, 2026.

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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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.?

Browse thousands of different options on Cheapflights for your next trip

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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 August 24, 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 August 24, 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 August 24, 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 August 24, 2026.

Last-minute flights from Singapore to Washington, D.C.
Discover last-minute flight deals from Singapore to Washington, D.C.. Data last updated August 24, 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 August 24, 2026.