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 8/23. 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

Discover deals from 900+ travel sites with momondo.

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.

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
6:12 pm - 5:45 pm
BWI
-
SIN
34h 33m
1 stop
Singapore Airlines Logo
9:00 am - 5:40 am
SIN
-
BWI
33h 40m
1 stop
$947Singapore Airlines
Tue, Nov 3 - Tue, Nov 17
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
$1,042Multiple Airlines
Mon, Aug 31 - Mon, Sep 7
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
$1,089Multiple Airlines
Sun, Aug 23 - Thu, Sep 3
Air Canada Logo
9:40 am - 5:15 am
DCA
-
SIN
31h 35m
2 stops
Air Canada Logo
7:00 am - 10:20 am
SIN
-
DCA
39h 20m
2 stops
$1,104Air Canada
Thu, Sep 10 - Thu, Sep 17
Air Canada Logo
3:45 pm - 5:15 am
IAD
-
SIN
25h 30m
2 stops
Air Canada Logo
7:00 am - 8:24 pm
SIN
-
IAD
25h 24m
2 stops
$1,109Air Canada
Tue, Aug 11 - Tue, Aug 18
Air Canada Logo
12:40 pm - 5:15 am
DCA
-
SIN
52h 35m
2 stops
Air Canada Logo
8:10 am - 10:20 am
SIN
-
DCA
38h 10m
2 stops
$1,118Air Canada
Wed, Sep 9 - Wed, Sep 23
Qatar Airways Logo
9:00 pm - 3:45 pm
IAD
-
SIN
30h 45m
1 stop
Qatar Airways Logo
7:40 pm - 8:45 am
SIN
-
IAD
25h 05m
1 stop
$1,125Qatar Airways
Mon, Aug 31 - Mon, Sep 7
Turkish Airlines Logo
9:45 pm - 5:55 pm
IAD
-
SIN
32h 10m
1 stop
Turkish Airlines Logo
11:10 am - 11:35 am
SIN
-
IAD
36h 25m
1 stop
$1,169Turkish Airlines
Sun, Aug 30 - Wed, Sep 9
Qatar Airways Logo
11:54 am - 3:45 pm
BWI
-
SIN
39h 51m
2 stops
Qatar Airways Logo
7:40 pm - 9:30 pm
SIN
-
BWI
37h 50m
2 stops
$1,243Qatar Airways
Tue, Sep 1 - Tue, Sep 8
Finnair Logo
6:25 pm - 6:30 pm
BWI
-
SIN
36h 05m
2 stops
Finnair Logo
9:35 pm - 10:59 pm
SIN
-
BWI
37h 24m
2 stops
$1,322Finnair
Tue, Sep 1 - Sat, Sep 12

Finnair flights from Washington, D.C. to Singapore

Our best Finnair deals on Washington, D.C. to Singapore flight tickets
Finnair
Sep 1
BWI6:25 pmBaltimore/Washington
36h 05m
2 stops
SIN6:30 pmSingapore Changi
Sep 12
SIN9:35 pmSingapore Changi
37h 24m
2 stops
BWI10:59 pmBaltimore/Washington
$1,322
Finnair
Aug 23
BWI6:39 pmBaltimore/Washington
35h 51m
2 stops
SIN6:30 pmSingapore Changi
Sep 3
SIN9:35 pmSingapore Changi
38h 08m
2 stops
BWI11:43 pmBaltimore/Washington
$1,363
Finnair
Jun 18
DCA6:40 pmWashington, D.C. Reagan-National
35h 50m
2 stops
SIN6:30 pmSingapore Changi
Jun 23
SIN9:35 pmSingapore Changi
37h 39m
2 stops
DCA11:14 pmWashington, D.C. Reagan-National
$1,442

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

Our best Turkish Airlines deals on Washington, D.C. to Singapore flight tickets
Turkish Airlines
Aug 30
IAD9:45 pmWashington, D.C. Dulles Intl
32h 10m
1 stop
SIN5:55 pmSingapore Changi
Sep 9
SIN11:10 amSingapore Changi
36h 25m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$1,169
Turkish Airlines
Aug 27
IAD1:20 pmWashington, D.C. Dulles Intl
40h 35m
1 stop
SIN5:55 pmSingapore Changi
Sep 6
SIN10:25 amSingapore Changi
37h 10m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$1,179
Turkish Airlines
Sep 2
IAD9:45 pmWashington, D.C. Dulles Intl
23h 00m
1 stop
SIN8:45 amSingapore Changi
Sep 8
SIN10:25 amSingapore Changi
37h 10m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$1,195

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 5, 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

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Tue 11/3

6:12 pm-5:45 pm

1 stop34h 33m

Singapore Changi

Tue 11/17

9:00 am-5:40 am

1 stop33h 40m

$947

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 8/31

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Mon 9/7

5:55 pm-7:30 pm

1 stop37h 35m

$1,042

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

$1,089

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Thu 9/10

9:40 am-5:15 am

2 stops31h 35m

Singapore Changi

Thu 9/17

7:00 am-10:20 am

2 stops39h 20m

$1,104
Quickest round-trip

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 8/11

3:45 pm-5:15 am

2 stops25h 30m

Singapore Changi

Tue 8/18

7:00 am-8:24 pm

2 stops25h 24m

$1,109

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Wed 9/9

12:40 pm-5:15 am

2 stops52h 35m

Singapore Changi

Wed 9/23

8:10 am-10:20 am

2 stops38h 10m

$1,118

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 8/31

9:00 pm-3:45 pm

1 stop30h 45m

Singapore Changi

Mon 9/7

7:40 pm-8:45 am

1 stop25h 05m

$1,125

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 8/30

9:45 pm-5:55 pm

1 stop32h 10m

Singapore Changi

Wed 9/9

11:10 am-11:35 am

1 stop36h 25m

$1,169

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Tue 9/1

11:54 am-3:45 pm

2 stops39h 51m

Singapore Changi

Tue 9/8

7:40 pm-9:30 pm

2 stops37h 50m

$1,243

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Tue 9/1

6:25 pm-6:30 pm

2 stops36h 05m

Singapore Changi

Sat 9/12

9:35 pm-10:59 pm

2 stops37h 24m

$1,322

Flights are sorted by cheapest round-trip flights first.

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

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 $1,295 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 $961 on momondo.

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

You could potentially save up to 10% 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

22h 10m

Direct flights

None
The fastest flight from Washington, D.C. to Singapore takes 22h 10m
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
1,445 reviews
Search Etihad Airways flights
Turkish AirlinesPriceFrom $939Free CancellationRating
7.4
4,408 reviews
Search Turkish Airlines flights
Qatar AirwaysPriceFrom $1,041Free CancellationRating
7.4
3,730 reviews
Search Qatar Airways flights
United AirlinesPriceFrom $1,124Free CancellationRating
7.4
9,774 reviews
Search United Airlines flights
JetBluePriceFrom $1,245Free CancellationRating
7.1
2,982 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.

An easier way to manage your Singapore 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 7/5
Sun 7/12

Find better results for your trip to Singapore

Popular cities in Singapore

Popular flights according to clicks in the last 7 days on momondo