Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Singapore to Washington, D.C. from $457

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 11/24. 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
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Singapore to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Etihad Airways Logo
7:25 pm - 9:05 amSIN-IAD
26h 40m1 stop
Etihad Airways Logo
3:35 pm - 9:15 amIAD-SIN
29h 40m1 stop
$960Etihad Airways
Find Deal
Sun, Mar 1 - Thu, Apr 30
Etihad Airways Logo
7:25 pm - 9:05 amSIN-IAD
26h 40m1 stop
Etihad Airways Logo
3:35 pm - 9:15 amIAD-SIN
29h 40m1 stop
$961Etihad Airways
Find Deal
Sun, Mar 1 - Thu, Apr 30
Multiple Airlines Logo
2:00 am - 5:49 amSIN-IAD
39h 49m2 stops
Multiple Airlines Logo
7:18 pm - 12:35 pmIAD-SIN
29h 17m2 stops
$968Multiple Airlines
Find Deal
Mon, May 11 - Tue, Jun 30
Etihad Airways Logo
7:25 pm - 10:05 amSIN-IAD
26h 40m1 stop
Etihad Airways Logo
3:35 pm - 9:35 amIAD-SIN
30h 00m1 stop
$980Etihad Airways
Find Deal
Wed, Mar 11 - Sun, Mar 15
Air Canada Logo
8:50 am - 8:54 pmSIN-IAD
25h 04m2 stops
Air Canada Logo
5:50 pm - 7:00 amIAD-SIN
48h 10m2 stops
$984Air Canada
Find Deal
Tue, Nov 25 - Mon, Dec 8
Air Canada Logo
8:50 am - 10:23 amSIN-DCA
37h 33m2 stops
Air Canada Logo
8:40 pm - 7:00 amDCA-SIN
46h 20m2 stops
$984Air Canada
Find Deal
Thu, Mar 12 - Mon, Mar 16
Air China Logo
5:15 pm - 6:30 pmSIN-IAD
38h 15m1 stop
Air China Logo
10:00 pm - 4:25 pmIAD-SIN
29h 25m1 stop
$1,017Air China
Find Deal
Thu, Nov 27 - Fri, Jan 16
Air China Logo
5:55 pm - 6:30 pmSIN-IAD
37h 35m1 stop
Air China Logo
10:00 pm - 4:25 pmIAD-SIN
29h 25m1 stop
$1,036Air China
Find Deal
Thu, Dec 25 - Tue, Dec 30
Multiple Airlines Logo
7:25 pm - 3:30 pmSIN-IAD
33h 05m1 stop
Multiple Airlines Logo
1:30 pm - 5:35 pmIAD-SIN
39h 05m1 stop
$1,073Multiple Airlines
Find Deal
Tue, Nov 25 - Mon, Dec 8
Japan Airlines Logo
1:55 am - 2:20 pmSIN-DCA
24h 25m2 stops
Japan Airlines Logo
6:00 am - 6:10 amDCA-SIN
36h 10m2 stops
$1,147Japan Airlines
Find Deal
Mon, May 11 - Tue, Jun 30

Air Canada flights from Singapore to Washington, D.C.

Our best Air Canada deals on Singapore to Washington, D.C. flight tickets
Air Canada
Nov 25
SIN8:50 amSingapore Changi
25h 04m
2 stops
IAD8:54 pmWashington, D.C. Dulles Intl
Dec 8
IAD5:50 pmWashington, D.C. Dulles Intl
48h 10m
2 stops
SIN7:00 amSingapore Changi
$984
Find similar
Air Canada
Mar 12
SIN8:50 amSingapore Changi
37h 33m
2 stops
DCA10:23 amWashington, D.C. Reagan-National
Mar 16
DCA8:40 pmWashington, D.C. Reagan-National
46h 20m
2 stops
SIN7:00 amSingapore Changi
$985
Find similar
Air Canada
Nov 27
SIN8:50 amSingapore Changi
38h 36m
2 stops
DCA10:26 amWashington, D.C. Reagan-National
Jan 16
DCA6:00 amWashington, D.C. Reagan-National
36h 00m
2 stops
SIN7:00 amSingapore Changi
$1,059
Find similar

Air China flights from Singapore to Washington, D.C.

Our best Air China deals on Singapore to Washington, D.C. flight tickets
Air China
Nov 27
SIN5:15 pmSingapore Changi
38h 15m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
Jan 16
IAD10:00 pmWashington, D.C. Dulles Intl
29h 25m
1 stop
SIN4:25 pmSingapore Changi
$1,017
Find similar
Air China
Dec 15
SIN5:55 pmSingapore Changi
37h 35m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
Jan 6
IAD10:00 pmWashington, D.C. Dulles Intl
34h 55m
1 stop
SIN9:55 pmSingapore Changi
$1,060
Find similar
Air China
Dec 25
SIN5:55 pmSingapore Changi
37h 35m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
Dec 30
IAD10:00 pmWashington, D.C. Dulles Intl
29h 25m
1 stop
SIN4:25 pmSingapore Changi
$1,095
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Singapore to Washington, D.C. 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 November 13, 2025.
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

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 3/1

7:25 pm-9:05 am

1 stop26h 40m

Washington, D.C. Dulles Intl

Thu 4/30

3:35 pm-9:15 am

1 stop29h 40m

$960

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 3/1

7:25 pm-9:05 am

1 stop26h 40m

Washington, D.C. Dulles Intl

Thu 4/30

3:35 pm-9:15 am

1 stop29h 40m

$961

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 5/11

2:00 am-5:49 am

2 stops39h 49m

Washington, D.C. Dulles Intl

Tue 6/30

7:18 pm-12:35 pm

2 stops29h 17m

$968

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 3/11

7:25 pm-10:05 am

1 stop26h 40m

Washington, D.C. Dulles Intl

Sun 3/15

3:35 pm-9:35 am

1 stop30h 00m

$980

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 11/25

8:50 am-8:54 pm

2 stops25h 04m

Washington, D.C. Dulles Intl

Mon 12/8

5:50 pm-7:00 am

2 stops48h 10m

$984

SingaporeWashington, D.C.

SIN - DCA

SINDCA

Singapore Changi

Thu 3/12

8:50 am-10:23 am

2 stops37h 33m

Washington, D.C. Reagan-National

Mon 3/16

8:40 pm-7:00 am

2 stops46h 20m

$984

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 11/27

5:15 pm-6:30 pm

1 stop38h 15m

Washington, D.C. Dulles Intl

Fri 1/16

10:00 pm-4:25 pm

1 stop29h 25m

$1,017

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 12/25

5:55 pm-6:30 pm

1 stop37h 35m

Washington, D.C. Dulles Intl

Tue 12/30

10:00 pm-4:25 pm

1 stop29h 25m

$1,036

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 11/25

7:25 pm-3:30 pm

1 stop33h 05m

Washington, D.C. Dulles Intl

Mon 12/8

1:30 pm-5:35 pm

1 stop39h 05m

$1,073

SingaporeWashington, D.C.

SIN - DCA

SINDCA

Singapore Changi

Mon 5/11

1:55 am-2:20 pm

2 stops24h 25m

Washington, D.C. Reagan-National

Tue 6/30

6:00 am-6:10 am

2 stops36h 10m

$1,147

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Washington, D.C. from

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

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.?

The month of September is, on average, the cheapest month to fly to Washington, D.C. from Singapore, with most prices found around $1,010. If you’re not able to fly to Washington, D.C. in September, then August is your next best option. Flight prices from Singapore to Washington, D.C. during August average around $1,025.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Singapore is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,114. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Singapore to Washington, D.C. for around $1,472.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the afternoon is the cheapest time of day to fly from Singapore to Washington, D.C. when you can find flight prices for as low as $1,059. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $1,410. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You could potentially save up to 8% on your flight if you consider stops on a Singapore to Washington, D.C. flight.

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

As of November 2025, prices for Singapore to Washington, D.C. 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.

Are you open to changing your travel dates? Check out the ideal times to fly from Singapore to Washington, D.C. 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. (SIN to WAS) flight deals and tips

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

Direct flights

None
There are no direct flights from Singapore to Washington, D.C.. There are no popular flight routes from Singapore to Washington, D.C..
Search flight deals

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

    There are 9651.2 mi between Singapore Changi and Washington, D.C.. In terms of flight time, this usually takes a little over 22h 05m.

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

    Prices for flights from Singapore Changi Airport to Washington, D.C. are updated daily.

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

    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..

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

    The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Reston
Manassas
Gaithersburg
Fairfax
Glen Burnie
Linthicum Heights
Springfield

Why use momondo?

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

Finding the right flight to Washington, D.C. from Singapore is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Singapore with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Singapore to Washington, D.C..

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

If you are not ready to book a flight from Singapore to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 12/13
Sat 12/20
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport