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Cheap flights from Singapore to Washington, D.C. from $703

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Singapore to Washington, D.C. departing on 4/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:25 pm - 7:30 pm
SIN
-
IAD
32h 05m
1 stop
Multiple Airlines Logo
3:10 pm - 9:40 am
IAD
-
SIN
30h 30m
1 stop
$1,064Multiple Airlines
Thu, Apr 23 - Mon, May 4
Multiple Airlines Logo
11:25 pm - 7:30 pm
SIN
-
IAD
32h 05m
1 stop
Multiple Airlines Logo
3:10 pm - 9:40 am
IAD
-
SIN
30h 30m
1 stop
$1,074Multiple Airlines
Thu, Apr 23 - Sun, May 3
United Airlines Logo
8:35 pm - 7:50 am
SIN
-
IAD
23h 15m
1 stop
United Airlines Logo
10:30 pm - 6:35 pm
IAD
-
SIN
32h 05m
2 stops
$1,099United Airlines
Thu, Apr 23 - Mon, May 4
EVA Air Logo
1:10 pm - 7:34 am
SIN
-
IAD
30h 24m
2 stops
EVA Air Logo
6:14 pm - 11:55 am
IAD
-
SIN
29h 41m
2 stops
$1,147EVA Air
Thu, May 14 - Sat, Aug 8
United Airlines Logo
8:35 pm - 10:18 pm
SIN
-
IAD
37h 43m
1 stop
United Airlines Logo
10:30 pm - 6:35 pm
IAD
-
SIN
32h 05m
2 stops
$1,169United Airlines
Tue, Apr 14 - Sat, Apr 18
United Airlines Logo
9:00 am - 12:32 am
SIN
-
IAD
27h 32m
2 stops
United Airlines Logo
6:40 pm - 6:40 am
IAD
-
SIN
48h 00m
2 stops
$1,217United Airlines
Thu, Apr 23 - Sun, May 3
United Airlines Logo
8:35 pm - 7:26 am
SIN
-
IAD
46h 51m
3 stops
United Airlines Logo
6:30 am - 6:35 pm
IAD
-
SIN
24h 05m
1 stop
$1,222United Airlines
Tue, May 19 - Wed, May 27
Multiple Airlines Logo
3:20 pm - 7:34 am
SIN
-
IAD
28h 14m
2 stops
Multiple Airlines Logo
1:50 am - 11:55 am
IAD
-
SIN
22h 05m
1 stop
$1,226Multiple Airlines
Thu, May 14 - Fri, Aug 7
STARLUX Airlines Logo
2:00 pm - 7:34 am
SIN
-
IAD
29h 34m
2 stops
STARLUX Airlines Logo
5:38 pm - 12:40 pm
IAD
-
SIN
31h 02m
2 stops
$1,230STARLUX Airlines
Wed, May 20 - Wed, May 27
EVA Air Logo
3:20 pm - 7:34 am
SIN
-
IAD
28h 14m
2 stops
EVA Air Logo
1:50 am - 1:55 pm
IAD
-
SIN
24h 05m
1 stop
$1,246EVA Air
Thu, May 14 - Fri, Aug 7

EVA Air flights from Singapore to Washington, D.C. Dulles Intl Airport

Our best EVA Air deals on Singapore to Washington, D.C. Dulles Intl Airport flight tickets
EVA Air
May 14
SIN1:10 pmSingapore Changi
30h 24m
2 stops
IAD7:34 amWashington, D.C. Dulles Intl
Aug 8
IAD6:14 pmWashington, D.C. Dulles Intl
29h 41m
2 stops
SIN11:55 amSingapore Changi
$1,147
EVA Air
May 14
SIN3:20 pmSingapore Changi
28h 14m
2 stops
IAD7:34 amWashington, D.C. Dulles Intl
Aug 8
IAD6:14 pmWashington, D.C. Dulles Intl
29h 41m
2 stops
SIN11:55 amSingapore Changi
$1,239
EVA Air
May 14
SIN3:20 pmSingapore Changi
28h 14m
2 stops
IAD7:34 amWashington, D.C. Dulles Intl
Aug 7
IAD1:50 amWashington, D.C. Dulles Intl
24h 05m
1 stop
SIN1:55 pmSingapore Changi
$1,246

Air Canada flights from Singapore to Washington, D.C. Dulles Intl Airport

Our best Air Canada deals on Singapore to Washington, D.C. Dulles Intl Airport flight tickets
Air Canada
Jun 2
SIN7:00 amSingapore Changi
26h 26m
2 stops
IAD9:26 pmWashington, D.C. Dulles Intl
Jul 8
IAD10:14 pmWashington, D.C. Dulles Intl
43h 01m
2 stops
SIN5:15 amSingapore Changi
$1,279
Air Canada
Apr 14
SIN7:00 amSingapore Changi
26h 18m
2 stops
IAD9:18 pmWashington, D.C. Dulles Intl
Apr 26
IAD8:20 amWashington, D.C. Dulles Intl
28h 35m
2 stops
SIN12:55 amSingapore Changi
$4,452
Air Canada
Apr 14
SIN7:00 amSingapore Changi
26h 18m
2 stops
IAD9:18 pmWashington, D.C. Dulles Intl
Apr 22
IAD9:55 amWashington, D.C. Dulles Intl
27h 00m
2 stops
SIN12:55 amSingapore Changi
$4,469

momondo Fare Finder

 
Customize your flight search to find flights from Singapore to Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated April 1, 2026.
Use the filters below to find and compare flights from Singapore to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 4/23

11:25 pm-7:30 pm

1 stop32h 05m

Washington, D.C. Dulles Intl

Mon 5/4

3:10 pm-9:40 am

1 stop30h 30m

$1,064

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 4/23

11:25 pm-7:30 pm

1 stop32h 05m

Washington, D.C. Dulles Intl

Sun 5/3

3:10 pm-9:40 am

1 stop30h 30m

$1,074

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 4/23

8:35 pm-7:50 am

1 stop23h 15m

Washington, D.C. Dulles Intl

Mon 5/4

10:30 pm-6:35 pm

2 stops32h 05m

$1,099

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 5/14

1:10 pm-7:34 am

2 stops30h 24m

Washington, D.C. Dulles Intl

Sat 8/8

6:14 pm-11:55 am

2 stops29h 41m

$1,147

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 4/14

8:35 pm-10:18 pm

1 stop37h 43m

Washington, D.C. Dulles Intl

Sat 4/18

10:30 pm-6:35 pm

2 stops32h 05m

$1,169

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 4/23

9:00 am-12:32 am

2 stops27h 32m

Washington, D.C. Dulles Intl

Sun 5/3

6:40 pm-6:40 am

2 stops48h 00m

$1,217

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 5/19

8:35 pm-7:26 am

3 stops46h 51m

Washington, D.C. Dulles Intl

Wed 5/27

6:30 am-6:35 pm

1 stop24h 05m

$1,222
Quickest round-trip

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 5/14

3:20 pm-7:34 am

2 stops28h 14m

Washington, D.C. Dulles Intl

Fri 8/7

1:50 am-11:55 am

1 stop22h 05m

$1,226

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 5/20

2:00 pm-7:34 am

2 stops29h 34m

Washington, D.C. Dulles Intl

Wed 5/27

5:38 pm-12:40 pm

2 stops31h 02m

$1,230

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 5/14

3:20 pm-7:34 am

2 stops28h 14m

Washington, D.C. Dulles Intl

Fri 8/7

1:50 am-1:55 pm

1 stop24h 05m

$1,246

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Singapore to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Singapore and Washington, D.C. Dulles Intl Airport?

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, February is the cheapest month to fly from Singapore to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $924. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $941.

Can stopping save me money on Singapore to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 26% on your flight if you consider stops on a Singapore to Washington, D.C. Dulles Intl Airport flight.

How have Singapore to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of April 2026, prices for Singapore to Washington, D.C. Dulles Intl Airport flights are approximately 22% cheaper when compared to flights at the same time last year.

When to book flights from Singapore to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Singapore to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Singapore to Washington, D.C. Dulles Intl Airport (SIN to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Singapore to Washington, D.C. Dulles Intl Airport

Fastest flight time

21h 20m

Direct flights

None
The fastest flight from Singapore to Washington, D.C. Dulles Intl Airport takes 21h 20m
There are no direct flights from Singapore to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Singapore to Washington, D.C. Dulles Intl Airport.
Search flight deals

  • How far is Singapore Changi to Washington, D.C. Dulles Intl by plane?

    The distance between Singapore Changi and Washington, D.C. Dulles Intl is about 9647.6 mi. By plane, this route typically takes 21h 20m.

  • When did momondo last update prices for flights from Singapore Changi Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Singapore Changi Airport to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Singapore Changi Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Singapore Changi Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Laurel
Colonial Beach
Gaithersburg
Towson
Silver Spring
Fredericksburg
Rockville
Tysons
Manassas
Sterling
Linthicum Heights
Springfield
Bethesda

Why use momondo?

Why should I use momondo to find a flight deal from Singapore to Washington, D.C.?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Singapore to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Singapore to Washington, D.C. with flexible booking policies on momondo?

momondo does allow users to show only those flights to Washington, D.C. from Singapore which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Singapore to Washington, D.C.?

Once all potential Singapore to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Singapore to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Singapore to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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