Cheap flights from Singapore to Washington, D.C. from $689

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 9/19. 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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Recent round-trip flight deals from Singapore to Washington, D.C.

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Multiple Airlines Logo
5:40 am - 9:45 am
SIN
-
IAD
64h 05m
2 stops
Multiple Airlines Logo
9:00 pm - 8:50 am
IAD
-
SIN
23h 50m
1 stop
$1,135Multiple Airlines
พ., ก.ค. 8 - อา., ส.ค. 2
United Airlines Logo
9:00 am - 10:18 pm
SIN
-
IAD
25h 18m
1 stop
United Airlines Logo
10:20 pm - 6:35 pm
IAD
-
SIN
32h 15m
2 stops
$1,230United Airlines
พ., เม.ย. 22 - พ., พ.ค. 6
ANA Logo
11:05 am - 10:05 am
SIN
-
IAD
35h 00m
1 stop
ANA Logo
8:35 am - 11:20 pm
IAD
-
SIN
26h 45m
2 stops
$1,251ANA
อ., ก.ย. 1 - พ., ก.ย. 30
ANA Logo
11:05 am - 10:05 am
SIN
-
IAD
35h 00m
1 stop
ANA Logo
8:35 am - 11:20 pm
IAD
-
SIN
26h 45m
2 stops
$1,260ANA
อ., ก.ย. 1 - พ., ก.ย. 30
ANA Logo
11:05 am - 10:05 am
SIN
-
IAD
35h 00m
1 stop
ANA Logo
8:35 am - 11:20 pm
IAD
-
SIN
26h 45m
2 stops
$1,261ANA
อ., ก.ย. 1 - พ., ก.ย. 30
ANA Logo
10:00 pm - 3:50 pm
SIN
-
IAD
29h 50m
1 stop
ANA Logo
8:35 am - 11:20 pm
IAD
-
SIN
26h 45m
2 stops
$1,270ANA
อ., ก.ย. 1 - พ., ก.ย. 30
Multiple Airlines Logo
2:00 am - 5:05 pm
SIN
-
IAD
51h 05m
2 stops
Multiple Airlines Logo
7:00 am - 12:35 pm
IAD
-
SIN
41h 35m
2 stops
$1,298Multiple Airlines
อ., พ.ค. 19 - พฤ., ก.ย. 10
Multiple Airlines Logo
1:10 pm - 5:40 am
SIN
-
IAD
28h 30m
2 stops
Multiple Airlines Logo
11:05 am - 9:15 pm
IAD
-
SIN
22h 10m
1 stop
$1,301Multiple Airlines
อ., ก.ย. 1 - พ., ก.ย. 30
Multiple Airlines Logo
10:00 am - 9:45 am
SIN
-
IAD
35h 45m
3 stops
Multiple Airlines Logo
3:10 pm - 9:40 am
IAD
-
SIN
30h 30m
1 stop
$1,302Multiple Airlines
พฤ., พ.ค. 14 - ส., ส.ค. 8
Multiple Airlines Logo
6:45 pm - 3:40 pm
SIN
-
IAD
32h 55m
3 stops
Multiple Airlines Logo
3:10 pm - 9:40 am
IAD
-
SIN
30h 30m
1 stop
$1,310Multiple Airlines
พ., ก.ค. 8 - อา., ส.ค. 2

United Airlines flights from Singapore to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Singapore to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Apr 22
SIN9:00 amSingapore Changi
25h 18m
1 stop
IAD10:18 pmWashington, D.C. Dulles Intl
May 6
IAD10:20 pmWashington, D.C. Dulles Intl
32h 15m
2 stops
SIN6:35 pmSingapore Changi
$1,230
United Airlines
May 20
SIN9:00 amSingapore Changi
22h 12m
1 stop
IAD7:12 pmWashington, D.C. Dulles Intl
Sep 10
IAD12:50 pmWashington, D.C. Dulles Intl
29h 25m
2 stops
SIN6:15 amSingapore Changi
$1,334
United Airlines
May 7
SIN8:35 pmSingapore Changi
36h 36m
2 stops
IAD9:11 pmWashington, D.C. Dulles Intl
May 17
IAD8:30 amWashington, D.C. Dulles Intl
46h 05m
1 stop
SIN6:35 pmSingapore Changi
$1,389

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

Our best ANA deals on Singapore to Washington, D.C. Dulles Intl Airport flight tickets
ANA
Sep 1
SIN11:05 amSingapore Changi
35h 00m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Sep 30
IAD8:35 amWashington, D.C. Dulles Intl
26h 45m
2 stops
SIN11:20 pmSingapore Changi
$1,251
ANA
Sep 1
SIN11:05 amSingapore Changi
35h 00m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Sep 30
IAD8:35 amWashington, D.C. Dulles Intl
26h 45m
2 stops
SIN11:20 pmSingapore Changi
$1,260
ANA
Sep 1
SIN11:05 amSingapore Changi
35h 00m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Sep 30
IAD8:35 amWashington, D.C. Dulles Intl
26h 45m
2 stops
SIN11:20 pmSingapore Changi
$1,261

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 เมษายน 11, 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

พ. 7/8

5:40 am-9:45 am

2 stops64h 05m

Washington, D.C. Dulles Intl

อา. 8/2

9:00 pm-8:50 am

1 stop23h 50m

$1,135

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

พ. 4/22

9:00 am-10:18 pm

1 stop25h 18m

Washington, D.C. Dulles Intl

พ. 5/6

10:20 pm-6:35 pm

2 stops32h 15m

$1,230

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

อ. 9/1

11:05 am-10:05 am

1 stop35h 00m

Washington, D.C. Dulles Intl

พ. 9/30

8:35 am-11:20 pm

2 stops26h 45m

$1,251

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

อ. 9/1

11:05 am-10:05 am

1 stop35h 00m

Washington, D.C. Dulles Intl

พ. 9/30

8:35 am-11:20 pm

2 stops26h 45m

$1,260

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

อ. 9/1

11:05 am-10:05 am

1 stop35h 00m

Washington, D.C. Dulles Intl

พ. 9/30

8:35 am-11:20 pm

2 stops26h 45m

$1,261

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

อ. 9/1

10:00 pm-3:50 pm

1 stop29h 50m

Washington, D.C. Dulles Intl

พ. 9/30

8:35 am-11:20 pm

2 stops26h 45m

$1,270

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

อ. 5/19

2:00 am-5:05 pm

2 stops51h 05m

Washington, D.C. Dulles Intl

พฤ. 9/10

7:00 am-12:35 pm

2 stops41h 35m

$1,298
Quickest round-trip

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

อ. 9/1

1:10 pm-5:40 am

2 stops28h 30m

Washington, D.C. Dulles Intl

พ. 9/30

11:05 am-9:15 pm

1 stop22h 10m

$1,301

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

พฤ. 5/14

10:00 am-9:45 am

3 stops35h 45m

Washington, D.C. Dulles Intl

ส. 8/8

3:10 pm-9:40 am

1 stop30h 30m

$1,302

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

พ. 7/8

6:45 pm-3:40 pm

3 stops32h 55m

Washington, D.C. Dulles Intl

อา. 8/2

3:10 pm-9:40 am

1 stop30h 30m

$1,310

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 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 25% on your flight if you consider stops on a Singapore to Washington, D.C. Dulles Intl Airport flight.

Cheap Singapore to Washington, D.C. Dulles Intl Airport 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

24h 00m

Direct flights

None
The fastest flight from Singapore to Washington, D.C. Dulles Intl Airport takes 24h 00m
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.

Frequently asked questions about flying from Singapore to Washington, D.C. Dulles Intl Airport

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Singapore 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
Manassas
Sterling
Tysons
Linthicum Heights
Bethesda
Fairfax

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Singapore to Washington, D.C. for you.

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

All flight searches from Singapore to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Singapore.

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 offers price alerts on flights to Washington, D.C. from Singapore. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

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1 adult
จ. 5/11
จ. 5/18

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