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Cheap flights from Singapore to Washington, D.C. from $442

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 11/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Singapore to Washington, D.C.

Cheap round-trip flights

Air Canada Logo
8:50 am - 9:56 pmSIN-DCA
25h 06m2 stops
Air Canada Logo
4:10 pm - 7:00 amDCA-SIN
49h 50m2 stops
$867Air Canada
Find Deal
Sat, Nov 1 - Sat, Nov 8
Air Canada Logo
9:10 am - 9:38 amSIN-IAD
36h 28m2 stops
Air Canada Logo
9:35 am - 7:05 amIAD-SIN
33h 30m2 stops
$870Air Canada
Find Deal
Sun, Sep 28 - Sun, Oct 19
Air Canada Logo
9:10 am - 9:38 amSIN-IAD
36h 28m2 stops
Air Canada Logo
9:35 am - 7:05 amIAD-SIN
33h 30m2 stops
$871Air Canada
Find Deal
Sun, Oct 5 - Sun, Oct 19
ANA Logo
10:10 pm - 10:05 amSIN-IAD
23h 55m1 stop
ANA Logo
1:20 pm - 6:55 amIAD-SIN
53h 35m2 stops
$922ANA
Find Deal
Thu, Oct 9 - Sat, Oct 25
Multiple Airlines Logo
3:15 pm - 6:35 amSIN-BWI
27h 20m2 stops
Multiple Airlines Logo
2:30 pm - 2:00 pmBWI-SIN
34h 30m3 stops
$937Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Multiple Airlines Logo
4:05 pm - 10:50 amSIN-BWI
30h 45m3 stops
Multiple Airlines Logo
5:35 am - 12:50 amBWI-SIN
31h 15m2 stops
$954Multiple Airlines
Find Deal
Thu, Oct 16 - Fri, Oct 24
IndiGo Logo
7:45 pm - 7:45 pmSIN-IAD
36h 00m2 stops
IndiGo Logo
9:10 pm - 5:20 pmIAD-SIN
31h 10m2 stops
$975IndiGo
Find Deal
Thu, Oct 16 - Fri, Nov 7
IndiGo Logo
7:40 pm - 7:15 pmSIN-IAD
36h 35m2 stops
IndiGo Logo
9:10 pm - 5:20 pmIAD-SIN
31h 10m2 stops
$989IndiGo
Find Deal
Mon, Nov 17 - Sun, Nov 23
Korean Air Logo
1:35 am - 10:50 amSIN-IAD
21h 15m1 stop
Korean Air Logo
12:50 pm - 12:10 amIAD-SIN
23h 20m1 stop
$993Korean Air
Find Deal
Tue, Mar 10 - Sun, Mar 15
Korean Air Logo
1:35 am - 10:50 amSIN-IAD
21h 15m1 stop
Korean Air Logo
12:50 pm - 12:10 amIAD-SIN
23h 20m1 stop
$996Korean Air
Find Deal
Tue, Mar 10 - Sun, Mar 15

Delta flights from Singapore to Washington, D.C.

Our best Delta deals on Singapore to Washington, D.C. flight tickets
Delta
Oct 30
SIN10:40 amSingapore Changi
26h 00m
2 stops
IAD12:40 amWashington, D.C. Dulles Intl
Nov 6
IAD7:35 amWashington, D.C. Dulles Intl
27h 35m
2 stops
SIN12:10 amSingapore Changi
$994
Find similar
Delta
Nov 16
SIN1:35 amSingapore Changi
36h 19m
2 stops
IAD12:54 amWashington, D.C. Dulles Intl
Nov 23
IAD6:00 amWashington, D.C. Dulles Intl
34h 00m
2 stops
SIN5:00 amSingapore Changi
$998
Find similar
Delta
Oct 6
SIN1:10 amSingapore Changi
21h 45m
1 stop
IAD10:55 amWashington, D.C. Dulles Intl
Oct 16
IAD6:00 amWashington, D.C. Dulles Intl
29h 40m
2 stops
SIN11:40 pmSingapore Changi
$1,099
Find similar

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 1
SIN8:50 amSingapore Changi
25h 06m
2 stops
DCA9:56 pmWashington, D.C. Reagan-National
Nov 8
DCA4:10 pmWashington, D.C. Reagan-National
49h 50m
2 stops
SIN7:00 amSingapore Changi
$867
Find similar
Air Canada
Sep 28
SIN9:10 amSingapore Changi
36h 28m
2 stops
IAD9:38 amWashington, D.C. Dulles Intl
Oct 19
IAD9:35 amWashington, D.C. Dulles Intl
33h 30m
2 stops
SIN7:05 amSingapore Changi
$870
Find similar
Air Canada
Oct 5
SIN9:10 amSingapore Changi
36h 28m
2 stops
IAD9:38 amWashington, D.C. Dulles Intl
Oct 19
IAD9:35 amWashington, D.C. Dulles Intl
33h 30m
2 stops
SIN7:05 amSingapore Changi
$871
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 September 17, 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 - DCA

SINDCA

Singapore Changi

Sat 11/1

8:50 am-9:56 pm

2 stops25h 06m

Washington, D.C. Reagan-National

Sat 11/8

4:10 pm-7:00 am

2 stops49h 50m

$867

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 9/28

9:10 am-9:38 am

2 stops36h 28m

Washington, D.C. Dulles Intl

Sun 10/19

9:35 am-7:05 am

2 stops33h 30m

$870

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 10/5

9:10 am-9:38 am

2 stops36h 28m

Washington, D.C. Dulles Intl

Sun 10/19

9:35 am-7:05 am

2 stops33h 30m

$871

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 10/9

10:10 pm-10:05 am

1 stop23h 55m

Washington, D.C. Dulles Intl

Sat 10/25

1:20 pm-6:55 am

2 stops53h 35m

$922

SingaporeBaltimore

SIN - BWI

SINBWI

Singapore Changi

Thu 10/30

3:15 pm-6:35 am

2 stops27h 20m

Baltimore/Washington

Thu 11/6

2:30 pm-2:00 pm

3 stops34h 30m

$937

SingaporeBaltimore

SIN - BWI

SINBWI

Singapore Changi

Thu 10/16

4:05 pm-10:50 am

3 stops30h 45m

Baltimore/Washington

Fri 10/24

5:35 am-12:50 am

2 stops31h 15m

$954

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 10/16

7:45 pm-7:45 pm

2 stops36h 00m

Washington, D.C. Dulles Intl

Fri 11/7

9:10 pm-5:20 pm

2 stops31h 10m

$975

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 11/17

7:40 pm-7:15 pm

2 stops36h 35m

Washington, D.C. Dulles Intl

Sun 11/23

9:10 pm-5:20 pm

2 stops31h 10m

$989

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 3/10

1:35 am-10:50 am

1 stop21h 15m

Washington, D.C. Dulles Intl

Sun 3/15

12:50 pm-12:10 am

1 stop23h 20m

$993

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 3/10

1:35 am-10:50 am

1 stop21h 15m

Washington, D.C. Dulles Intl

Sun 3/15

12:50 pm-12:10 am

1 stop23h 20m

$996

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.

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.

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from Singapore when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $1,342 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Singapore for as low as $939 on momondo.

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

You could potentially save up to 3% 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 September 2025, prices for Singapore to Washington, D.C. flights are approximately 34% more expensive 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 21h 15m.

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

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

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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