Cheap flights from Washington, D.C. to Singapore from $353

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 5/1. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
6:16 pm - 5:35 pm
BWI
-
SIN
35h 19m
1 stop
Singapore Airlines Logo
9:00 am - 6:21 am
SIN
-
BWI
33h 21m
1 stop
$1,123Singapore Airlines
Wed, Sep 16 - Tue, Oct 6
Qatar Airways Logo
9:00 pm - 10:15 am
IAD
-
SIN
25h 15m
2 stops
Qatar Airways Logo
3:15 am - 3:40 pm
SIN
-
IAD
24h 25m
1 stop
$1,140Qatar Airways
Mon, Sep 28 - Wed, Oct 7
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
$1,148Etihad Airways
Sun, Jun 7 - Sun, Jun 21
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
$1,153Etihad Airways
Tue, May 19 - Sun, May 24
Multiple Airlines Logo
9:00 pm - 11:25 am
IAD
-
SIN
26h 25m
2 stops
Multiple Airlines Logo
7:40 pm - 3:40 pm
SIN
-
IAD
32h 00m
1 stop
$1,162Multiple Airlines
Thu, May 7 - Tue, Jun 23
Multiple Airlines Logo
9:00 pm - 3:35 pm
IAD
-
SIN
30h 35m
2 stops
Multiple Airlines Logo
1:30 am - 6:20 pm
SIN
-
IAD
28h 50m
1 stop
$1,164Multiple Airlines
Sat, May 9 - Thu, May 21
Turkish Airlines Logo
9:45 pm - 5:55 pm
IAD
-
SIN
32h 10m
1 stop
Turkish Airlines Logo
11:05 pm - 11:35 am
SIN
-
IAD
24h 30m
1 stop
$1,165Turkish Airlines
Sun, Aug 23 - Thu, Sep 3
Turkish Airlines Logo
1:20 pm - 9:30 am
IAD
-
SIN
32h 10m
1 stop
Turkish Airlines Logo
10:25 am - 11:35 am
SIN
-
IAD
37h 10m
1 stop
$1,170Turkish Airlines
Mon, Sep 7 - Thu, Sep 10
Air Canada Logo
8:40 pm - 5:15 am
DCA
-
SIN
68h 35m
2 stops
Air Canada Logo
8:50 am - 12:19 pm
SIN
-
DCA
39h 29m
2 stops
$1,217Air Canada
Tue, Oct 13 - Tue, Oct 27
Air Canada Logo
12:40 pm - 5:15 am
DCA
-
SIN
52h 35m
2 stops
Air Canada Logo
8:50 am - 12:19 pm
SIN
-
DCA
39h 29m
2 stops
$1,220Air Canada
Mon, Oct 5 - Thu, Oct 29

Qatar Airways flights from Washington, D.C. to Singapore

Our best Qatar Airways deals on Washington, D.C. to Singapore flight tickets
Qatar Airways
Sep 28
IAD9:00 pmWashington, D.C. Dulles Intl
25h 15m
2 stops
SIN10:15 amSingapore Changi
Oct 7
SIN3:15 amSingapore Changi
24h 25m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
$1,140
Qatar Airways
Sep 19
IAD9:00 pmWashington, D.C. Dulles Intl
23h 50m
1 stop
SIN8:50 amSingapore Changi
Oct 14
SIN3:15 amSingapore Changi
24h 25m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
$1,141
Qatar Airways
May 1
IAD9:00 pmWashington, D.C. Dulles Intl
31h 15m
1 stop
SIN4:15 pmSingapore Changi
May 18
SIN9:15 pmSingapore Changi
33h 05m
2 stops
IAD6:20 pmWashington, D.C. Dulles Intl
$1,144

Etihad Airways flights from Washington, D.C. to Singapore

Our best Etihad Airways deals on Washington, D.C. to Singapore flight tickets
Etihad Airways
Jun 7
IAD3:10 pmWashington, D.C. Dulles Intl
30h 30m
1 stop
SIN9:40 amSingapore Changi
Jun 21
SIN9:00 pmSingapore Changi
24h 45m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$1,148
Etihad Airways
May 19
IAD3:10 pmWashington, D.C. Dulles Intl
30h 30m
1 stop
SIN9:40 amSingapore Changi
May 24
SIN9:00 pmSingapore Changi
24h 45m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$1,153
Etihad Airways
May 30
IAD3:10 pmWashington, D.C. Dulles Intl
30h 30m
1 stop
SIN9:40 amSingapore Changi
Jun 5
SIN9:00 pmSingapore Changi
24h 45m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$1,166

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 April 25, 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

Wed 9/16

6:16 pm-5:35 pm

1 stop35h 19m

Singapore Changi

Tue 10/6

9:00 am-6:21 am

1 stop33h 21m

$1,123
Quickest round-trip

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 9/28

9:00 pm-10:15 am

2 stops25h 15m

Singapore Changi

Wed 10/7

3:15 am-3:40 pm

1 stop24h 25m

$1,140

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 6/7

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Sun 6/21

9:00 pm-9:45 am

1 stop24h 45m

$1,148

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 5/19

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Sun 5/24

9:00 pm-9:45 am

1 stop24h 45m

$1,153

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 5/7

9:00 pm-11:25 am

2 stops26h 25m

Singapore Changi

Tue 6/23

7:40 pm-3:40 pm

1 stop32h 00m

$1,162

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 5/9

9:00 pm-3:35 pm

2 stops30h 35m

Singapore Changi

Thu 5/21

1:30 am-6:20 pm

1 stop28h 50m

$1,164

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 8/23

9:45 pm-5:55 pm

1 stop32h 10m

Singapore Changi

Thu 9/3

11:05 pm-11:35 am

1 stop24h 30m

$1,165

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 9/7

1:20 pm-9:30 am

1 stop32h 10m

Singapore Changi

Thu 9/10

10:25 am-11:35 am

1 stop37h 10m

$1,170

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 10/13

8:40 pm-5:15 am

2 stops68h 35m

Singapore Changi

Tue 10/27

8:50 am-12:19 pm

2 stops39h 29m

$1,217

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 10/5

12:40 pm-5:15 am

2 stops52h 35m

Singapore Changi

Thu 10/29

8:50 am-12:19 pm

2 stops39h 29m

$1,220

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 August is, on average, the cheapest month to fly to Singapore from Washington, D.C., with most prices found around $738. If you aren’t able to travel to Singapore during the month of August, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $952.

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 $1,278 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 $886 on momondo.

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

You could potentially save up to 12% 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

23h 45m

Direct flights

None
The fastest flight from Washington, D.C. to Singapore takes 23h 45m
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
1,213 reviews
Search Korean Air flights
Air IndiaPriceFrom $807Free CancellationRating
5.5
2,963 reviews
Search Air India flights
Etihad AirwaysPriceFrom $828Free CancellationRating
7.3
1,435 reviews
Search Etihad Airways flights
Turkish AirlinesPriceFrom $917Free CancellationRating
7.4
4,329 reviews
Search Turkish Airlines flights
Qatar AirwaysPriceFrom $1,063Free CancellationRating
7.4
3,727 reviews
Search Qatar Airways flights
United AirlinesPriceFrom $1,125Free CancellationRating
7.4
9,653 reviews
Search United Airlines flights
JetBluePriceFrom $1,245Free CancellationRating
7.1
2,955 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
Mon 5/25
Mon 6/1

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