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Cheap flights from Washington, D.C. Dulles Intl Airport to Singapore from $421

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. Dulles Intl Airport to Singapore departing on 9/22. 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 Washington, D.C. Dulles Intl Airport to Singapore

Cheap round-trip flights

IndiGo Logo
2:30 pm - 5:20 pmIAD-SIN
38h 50m2 stops
IndiGo Logo
7:40 pm - 7:15 pmSIN-IAD
36h 35m2 stops
$949IndiGo
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Thu, Oct 30 - Wed, Nov 12
IndiGo Logo
9:40 pm - 5:15 pmIAD-SIN
31h 35m2 stops
IndiGo Logo
7:45 pm - 7:45 pmSIN-IAD
36h 00m2 stops
$967IndiGo
Find Deal
Sun, Oct 12 - Mon, Oct 20
Singapore Airlines Logo
6:13 pm - 5:45 pmIAD-SIN
34h 32m1 stop
Singapore Airlines Logo
9:00 am - 6:23 amSIN-IAD
34h 23m1 stop
$969Singapore Airlines
Find Deal
Sat, Nov 8 - Tue, Nov 18
Multiple Airlines Logo
10:10 pm - 5:20 pmIAD-SIN
31h 10m2 stops
Multiple Airlines Logo
11:55 pm - 6:30 pmSIN-IAD
31h 35m1 stop
$976Multiple Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Turkish Airlines Logo
9:40 pm - 5:55 pmIAD-SIN
32h 15m1 stop
Turkish Airlines Logo
10:25 am - 11:45 amSIN-IAD
38h 20m1 stop
$1,035Turkish Airlines
Find Deal
Tue, Oct 14 - Tue, Jan 20
Etihad Airways Logo
10:05 pm - 9:40 amIAD-SIN
23h 35m1 stop
Etihad Airways Logo
7:25 pm - 4:50 pmSIN-IAD
33h 25m1 stop
$1,036Etihad Airways
Find Deal
Sun, Oct 19 - Sat, Nov 1
Etihad Airways Logo
10:05 pm - 9:40 amIAD-SIN
23h 35m1 stop
Etihad Airways Logo
7:25 pm - 4:50 pmSIN-IAD
33h 25m1 stop
$1,039Etihad Airways
Find Deal
Mon, Oct 20 - Sat, Nov 1
Turkish Airlines Logo
10:10 pm - 5:35 pmIAD-SIN
31h 25m1 stop
Turkish Airlines Logo
5:25 am - 7:15 pmSIN-IAD
26h 50m1 stop
$1,045Turkish Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Qatar Airways Logo
11:00 am - 9:00 pmIAD-SIN
22h 00m1 stop
Qatar Airways Logo
6:45 pm - 3:40 pmSIN-IAD
32h 55m1 stop
$1,057Qatar Airways
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Fri, Sep 26 - Sat, Oct 4
Qatar Airways Logo
11:00 am - 9:00 pmIAD-SIN
22h 00m1 stop
Qatar Airways Logo
6:45 pm - 3:40 pmSIN-IAD
32h 55m1 stop
$1,058Qatar Airways
Find Deal
Sun, Sep 28 - Sun, Oct 5

Qatar Airways flights from Washington, D.C. Dulles Intl Airport to Singapore

Our best Qatar Airways deals on Washington, D.C. Dulles Intl Airport to Singapore flight tickets
Qatar Airways
Sep 23
IAD9:00 pmWashington, D.C. Dulles Intl
30h 45m
1 stop
SIN3:45 pmSingapore Changi
Sep 30
SIN3:10 amSingapore Changi
24h 30m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
$1,033
Find similar
Qatar Airways
Sep 21
IAD11:00 amWashington, D.C. Dulles Intl
22h 00m
1 stop
SIN9:00 pmSingapore Changi
Oct 5
SIN3:10 amSingapore Changi
24h 30m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
$1,047
Find similar
Qatar Airways
Sep 22
IAD9:00 pmWashington, D.C. Dulles Intl
30h 45m
1 stop
SIN3:45 pmSingapore Changi
Sep 29
SIN3:10 amSingapore Changi
24h 30m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
$1,054
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Air Canada flights from Washington, D.C. Dulles Intl Airport to Singapore

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Singapore flight tickets
Air Canada
Oct 15
IAD5:22 pmWashington, D.C. Dulles Intl
49h 43m
2 stops
SIN7:05 amSingapore Changi
Oct 30
SIN8:50 amSingapore Changi
24h 09m
2 stops
IAD8:59 pmWashington, D.C. Dulles Intl
$1,080
Find similar
Air Canada
Nov 11
IAD9:45 amWashington, D.C. Dulles Intl
26h 10m
2 stops
SIN12:55 amSingapore Changi
Nov 18
SIN8:50 amSingapore Changi
25h 04m
2 stops
IAD8:54 pmWashington, D.C. Dulles Intl
$1,086
Find similar
Air Canada
Feb 16
IAD9:00 amWashington, D.C. Dulles Intl
30h 55m
2 stops
SIN4:55 amSingapore Changi
Feb 24
SIN8:50 amSingapore Changi
25h 09m
2 stops
IAD8:59 pmWashington, D.C. Dulles Intl
$1,087
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 September 16, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 10/30

2:30 pm-5:20 pm

2 stops38h 50m

Singapore Changi

Wed 11/12

7:40 pm-7:15 pm

2 stops36h 35m

$949

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 10/12

9:40 pm-5:15 pm

2 stops31h 35m

Singapore Changi

Mon 10/20

7:45 pm-7:45 pm

2 stops36h 00m

$967

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 11/8

6:13 pm-5:45 pm

1 stop34h 32m

Singapore Changi

Tue 11/18

9:00 am-6:23 am

1 stop34h 23m

$969

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 10/30

10:10 pm-5:20 pm

2 stops31h 10m

Singapore Changi

Thu 11/6

11:55 pm-6:30 pm

1 stop31h 35m

$976

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 10/14

9:40 pm-5:55 pm

1 stop32h 15m

Singapore Changi

Tue 1/20

10:25 am-11:45 am

1 stop38h 20m

$1,035

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 10/19

10:05 pm-9:40 am

1 stop23h 35m

Singapore Changi

Sat 11/1

7:25 pm-4:50 pm

1 stop33h 25m

$1,036

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 10/20

10:05 pm-9:40 am

1 stop23h 35m

Singapore Changi

Sat 11/1

7:25 pm-4:50 pm

1 stop33h 25m

$1,039

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 10/30

10:10 pm-5:35 pm

1 stop31h 25m

Singapore Changi

Thu 11/6

5:25 am-7:15 pm

1 stop26h 50m

$1,045

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 9/26

11:00 am-9:00 pm

1 stop22h 00m

Singapore Changi

Sat 10/4

6:45 pm-3:40 pm

1 stop32h 55m

$1,057

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 9/28

11:00 am-9:00 pm

1 stop22h 00m

Singapore Changi

Sun 10/5

6:45 pm-3:40 pm

1 stop32h 55m

$1,058

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. Dulles Intl Airport 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 November is, on average, the cheapest month to fly to Singapore from Washington, D.C. Dulles Intl Airport, with most prices found around $985. If you aren’t able to travel to Singapore during the month of November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $1,011.

What is the cheapest day to depart on your flight to Singapore?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Singapore is on a Friday when prices can be found for as low as $1,136. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,496.

What is the cheapest time of day to depart on your flight to Singapore?

At noon is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to Singapore when you can find flight prices for as low as $1,135. Flying to Singapore at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,510 on average. Flights to Singapore from Washington, D.C. Dulles Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Singapore?

You are more likely to see cheaper flights to Singapore from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Singapore for around $1,205 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. Dulles Intl Airport for as low as $1,002 on momondo.

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

You could potentially save up to 5% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Singapore flight.

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

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

Direct flights

None
There are no direct flights from Washington, D.C. Dulles Intl Airport to Singapore. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Singapore.
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  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Singapore?

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Singapore.

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

    The travel and health documents required for your trip to Singapore can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Singapore. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Washington, D.C. Dulles Intl Airport to Singapore

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Singapore with momondo
Airline
Rating
Free Cancellation
Price
Air IndiaPriceFrom $807Free CancellationRating
5.5
2,930 reviews
Search Air India flights
Turkish AirlinesPriceFrom $816Free CancellationRating
7.3
3,968 reviews
Search Turkish Airlines flights
Etihad AirwaysPriceFrom $833Free CancellationRating
7.4
1,250 reviews
Search Etihad Airways flights
Korean AirPriceFrom $944Free CancellationRating
8.4
1,140 reviews
Search Korean Air flights
Qatar AirwaysPriceFrom $996Free CancellationRating
7.4
3,624 reviews
Search Qatar Airways flights
JetBluePriceFrom $1,024Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
United AirlinesPriceFrom $1,191Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
American AirlinesPriceFrom $1,196Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Singapore from Washington, D.C..

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

Yes. momondo allows you to filter the results for Washington, D.C. to Singapore flights to just show those with flexible booking policies.

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

Once all potential Washington, D.C. to Singapore flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Singapore, momondo offers a useful price alert feature which will track prices for flights to Singapore from Washington, D.C. and alert you when they change.

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