Cheap flights from Washington, D.C. to Singapore from $473

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Singapore departing on 8/18. 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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Find the cheapest flights from Washington, D.C. to Singapore

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:10 pm - 9:40 am
IAD
-
SIN
30h 30m
1 stop
Multiple Airlines Logo
9:00 am - 7:30 pm
SIN
-
IAD
22h 30m
1 stop
$1,020Multiple Airlines
Mon, Sep 14 - Fri, Sep 18
Etihad Airways Logo
3:10 pm - 9:40 am
IAD
-
SIN
30h 30m
1 stop
Etihad Airways Logo
7:25 pm - 10:05 am
SIN
-
IAD
26h 40m
1 stop
$1,035Etihad Airways
Mon, Oct 19 - Thu, Oct 29
Gulf Air Logo
2:55 pm - 12:45 pm
DCA
-
SIN
57h 50m
2 stops
Gulf Air Logo
8:00 pm - 10:57 pm
SIN
-
DCA
38h 57m
2 stops
$1,041Gulf Air
Tue, Oct 20 - Thu, Oct 29
Etihad Airways Logo
3:10 pm - 9:40 am
IAD
-
SIN
30h 30m
1 stop
Etihad Airways Logo
9:00 pm - 9:45 am
SIN
-
IAD
24h 45m
1 stop
$1,041Etihad Airways
Tue, Sep 15 - Tue, Sep 22
Multiple Airlines Logo
3:10 pm - 9:40 am
IAD
-
SIN
30h 30m
1 stop
Multiple Airlines Logo
5:55 pm - 7:30 pm
SIN
-
IAD
37h 35m
1 stop
$1,080Multiple Airlines
Sun, Aug 23 - Thu, Sep 3
Gulf Air Logo
2:55 pm - 12:45 pm
DCA
-
SIN
57h 50m
2 stops
Gulf Air Logo
8:00 pm - 10:57 pm
SIN
-
DCA
38h 57m
2 stops
$1,089Gulf Air
Sat, Oct 17 - Thu, Oct 29
Air Canada Logo
9:40 am - 5:15 am
DCA
-
SIN
31h 35m
2 stops
Air Canada Logo
7:00 am - 9:48 pm
SIN
-
DCA
26h 48m
2 stops
$1,103Air Canada
Tue, Aug 4 - Tue, Aug 25
Air Canada Logo
9:40 am - 5:15 am
DCA
-
SIN
31h 35m
2 stops
Air Canada Logo
7:00 am - 9:48 pm
SIN
-
DCA
26h 48m
2 stops
$1,104Air Canada
Tue, Aug 4 - Tue, Aug 25
STARLUX Airlines Logo
7:15 pm - 12:40 pm
BWI
-
SIN
29h 25m
2 stops
STARLUX Airlines Logo
2:00 pm - 6:30 am
SIN
-
BWI
28h 30m
2 stops
$1,290STARLUX Airlines
Wed, Aug 26 - Wed, Sep 9
STARLUX Airlines Logo
7:15 pm - 12:40 pm
BWI
-
SIN
29h 25m
2 stops
STARLUX Airlines Logo
2:10 pm - 6:30 am
SIN
-
BWI
28h 20m
2 stops
$1,294STARLUX Airlines
Tue, Sep 15 - Tue, Sep 22

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STARLUX Airlines flights from Washington, D.C. to Singapore

Our best STARLUX Airlines deals on Washington, D.C. to Singapore flight tickets
STARLUX Airlines
Aug 26
BWI7:15 pmBaltimore/Washington
29h 25m
2 stops
SIN12:40 pmSingapore Changi
Sep 9
SIN2:00 pmSingapore Changi
28h 30m
2 stops
BWI6:30 amBaltimore/Washington
$1,290
STARLUX Airlines
Sep 15
BWI7:15 pmBaltimore/Washington
29h 25m
2 stops
SIN12:40 pmSingapore Changi
Sep 22
SIN2:10 pmSingapore Changi
28h 20m
2 stops
BWI6:30 amBaltimore/Washington
$1,294
STARLUX Airlines
Oct 17
BWI7:00 amBaltimore/Washington
41h 40m
2 stops
SIN12:40 pmSingapore Changi
Oct 22
SIN2:00 pmSingapore Changi
27h 20m
2 stops
BWI5:20 amBaltimore/Washington
$1,304

Singapore Airlines flights from Washington, D.C. to Singapore

Our best Singapore Airlines deals on Washington, D.C. to Singapore flight tickets
Singapore Airlines
Oct 21
BWI5:43 pmBaltimore/Washington
25h 57m
1 stop
SIN7:40 amSingapore Changi
Nov 20
SIN7:00 pmSingapore Changi
23h 29m
1 stop
BWI5:29 amBaltimore/Washington
$1,433
Singapore Airlines
Sep 10
BWI5:44 pmBaltimore/Washington
25h 56m
1 stop
SIN7:40 amSingapore Changi
Sep 14
SIN8:45 pmSingapore Changi
31h 50m
1 stop
BWI4:35 pmBaltimore/Washington
$1,435
Singapore Airlines
Oct 9
BWI5:43 pmBaltimore/Washington
25h 57m
1 stop
SIN7:40 amSingapore Changi
Oct 12
SIN8:45 pmSingapore Changi
31h 52m
1 stop
BWI4:37 pmBaltimore/Washington
$1,501

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Singapore 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 June 26, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 9/14

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Fri 9/18

9:00 am-7:30 pm

1 stop22h 30m

$1,020

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 10/19

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Thu 10/29

7:25 pm-10:05 am

1 stop26h 40m

$1,035

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 10/20

2:55 pm-12:45 pm

2 stops57h 50m

Singapore Changi

Thu 10/29

8:00 pm-10:57 pm

2 stops38h 57m

$1,041

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 9/15

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Tue 9/22

9:00 pm-9:45 am

1 stop24h 45m

$1,041

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 8/23

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Thu 9/3

5:55 pm-7:30 pm

1 stop37h 35m

$1,080

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Sat 10/17

2:55 pm-12:45 pm

2 stops57h 50m

Singapore Changi

Thu 10/29

8:00 pm-10:57 pm

2 stops38h 57m

$1,089

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 8/4

9:40 am-5:15 am

2 stops31h 35m

Singapore Changi

Tue 8/25

7:00 am-9:48 pm

2 stops26h 48m

$1,103

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 8/4

9:40 am-5:15 am

2 stops31h 35m

Singapore Changi

Tue 8/25

7:00 am-9:48 pm

2 stops26h 48m

$1,104

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Wed 8/26

7:15 pm-12:40 pm

2 stops29h 25m

Singapore Changi

Wed 9/9

2:00 pm-6:30 am

2 stops28h 30m

$1,290

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Tue 9/15

7:15 pm-12:40 pm

2 stops29h 25m

Singapore Changi

Tue 9/22

2:10 pm-6:30 am

2 stops28h 20m

$1,294

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 Singapore from

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

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 Singapore?

The month of September is, on average, the cheapest month to fly to Singapore from Washington, D.C., with most prices found around $343. If you aren’t able to travel to Singapore during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $674.

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

You are more likely to see cheaper flights to Singapore from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Singapore for around $1,327 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Singapore from Washington, D.C. for as low as $1,122 on momondo.

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

You could potentially save up to 3% on your flight if you consider stops on a Washington, D.C. to Singapore flight.

Cheap Washington, D.C. to Singapore flight deals and tips

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

Fastest flight time

21h 25m

Direct flights

None
The fastest flight from Washington, D.C. to Singapore takes 21h 25m
There are no direct flights from Washington, D.C. to Singapore. There are no popular flight routes from Washington, D.C. to Singapore.

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

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

    Prices for flights from Washington, D.C. to Singapore were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. to Singapore?

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

    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 Washington, D.C. to Singapore.

  • What documentation or ID do you need to fly to Singapore?

    The necessary travel and health documents for your Singapore trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Washington, D.C. to Singapore

Compare and see reviews for airlines that fly from Washington, D.C. to Singapore with momondo
Airline
Rating
Free Cancellation
Price
Korean AirPriceFrom $743Free CancellationRating
8.4
1,218 reviews
Search Korean Air flights
Etihad AirwaysPriceFrom $828Free CancellationRating
7.3
1,465 reviews
Search Etihad Airways flights
Turkish AirlinesPriceFrom $939Free CancellationRating
7.4
4,424 reviews
Search Turkish Airlines flights
Qatar AirwaysPriceFrom $1,041Free CancellationRating
7.3
3,735 reviews
Search Qatar Airways flights
United AirlinesPriceFrom $1,124Free CancellationRating
7.4
9,897 reviews
Search United Airlines flights
JetBluePriceFrom $1,245Free CancellationRating
7.1
3,013 reviews
Search JetBlue flights

Why use momondo?

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

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 Washington, D.C. to Singapore for you.

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

Yes. All flights to Singapore from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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 Singapore from Washington, D.C..

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

Price alerts on flights to Singapore from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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1 adult
Sun 7/26
Sun 8/2

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