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Cheap flights from Washington, D.C. Dulles Intl Airport to Singapore from $489

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 4/24. 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

Enter your travel dates to find the best prices.
Qatar Airways Logo
9:00 pm - 9:20 am
IAD
-
SIN
24h 20m
1 stop
Qatar Airways Logo
7:40 pm - 6:10 pm
SIN
-
IAD
34h 30m
1 stop
$1,104Qatar Airways
Fri, May 8 - Wed, May 13
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
$1,105Etihad Airways
Sat, Sep 19 - Sat, Sep 26
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
$1,106Etihad Airways
Wed, Sep 9 - Sat, Sep 19
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
$1,117Etihad Airways
Sun, Jun 7 - Mon, Jun 22
Qatar Airways Logo
9:00 pm - 9:20 am
IAD
-
SIN
24h 20m
1 stop
Qatar Airways Logo
7:40 pm - 6:10 pm
SIN
-
IAD
34h 30m
1 stop
$1,119Qatar Airways
Fri, May 8 - Fri, May 22
EVA Air Logo
1:15 am - 11:55 am
IAD
-
SIN
22h 40m
1 stop
EVA Air Logo
1:10 pm - 10:00 pm
SIN
-
IAD
20h 50m
1 stop
$1,120EVA Air
Wed, Sep 9 - Sat, Sep 19
Qatar Airways Logo
9:00 pm - 8:50 am
IAD
-
SIN
23h 50m
1 stop
Qatar Airways Logo
3:15 am - 3:40 pm
SIN
-
IAD
24h 25m
1 stop
$1,127Qatar Airways
Fri, Sep 11 - Thu, Sep 17
Qatar Airways Logo
9:00 pm - 12:10 am
IAD
-
SIN
39h 10m
2 stops
Qatar Airways Logo
7:40 pm - 6:10 pm
SIN
-
IAD
34h 30m
1 stop
$1,133Qatar Airways
Tue, May 12 - Tue, May 26
Multiple Airlines Logo
1:15 am - 11:55 am
IAD
-
SIN
22h 40m
1 stop
Multiple Airlines Logo
3:20 pm - 5:40 am
SIN
-
IAD
26h 20m
2 stops
$1,136Multiple Airlines
Wed, Sep 9 - Thu, Sep 24
Air Canada Logo
10:07 pm - 5:15 am
IAD
-
SIN
43h 08m
2 stops
Air Canada Logo
7:00 am - 11:43 am
SIN
-
IAD
40h 43m
2 stops
$1,137Air Canada
Sat, May 9 - Tue, May 26

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
May 8
IAD9:00 pmWashington, D.C. Dulles Intl
24h 20m
1 stop
SIN9:20 amSingapore Changi
May 13
SIN7:40 pmSingapore Changi
34h 30m
1 stop
IAD6:10 pmWashington, D.C. Dulles Intl
$1,104
Qatar Airways
May 8
IAD9:00 pmWashington, D.C. Dulles Intl
24h 20m
1 stop
SIN9:20 amSingapore Changi
May 22
SIN7:40 pmSingapore Changi
34h 30m
1 stop
IAD6:10 pmWashington, D.C. Dulles Intl
$1,119
Qatar Airways
Aug 27
IAD9:00 pmWashington, D.C. Dulles Intl
25h 15m
2 stops
SIN10:15 amSingapore Changi
Sep 27
SIN3:15 amSingapore Changi
24h 25m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
$1,133

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

Our best Etihad Airways deals on Washington, D.C. Dulles Intl Airport to Singapore flight tickets
Etihad Airways
Sep 19
IAD3:10 pmWashington, D.C. Dulles Intl
30h 30m
1 stop
SIN9:40 amSingapore Changi
Sep 26
SIN9:00 pmSingapore Changi
24h 45m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$1,105
Etihad Airways
Jun 7
IAD3:10 pmWashington, D.C. Dulles Intl
30h 30m
1 stop
SIN9:40 amSingapore Changi
Jun 22
SIN9:00 pmSingapore Changi
24h 45m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$1,117
Etihad Airways
May 26
IAD3:10 pmWashington, D.C. Dulles Intl
30h 30m
1 stop
SIN9:40 amSingapore Changi
Jun 3
SIN9:00 pmSingapore Changi
24h 45m
1 stop
IAD9:45 amWashington, D.C. Dulles Intl
$1,145

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 April 9, 2026.
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

Cheapest round-trip

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 5/8

9:00 pm-9:20 am

1 stop24h 20m

Singapore Changi

Wed 5/13

7:40 pm-6:10 pm

1 stop34h 30m

$1,104

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 9/19

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Sat 9/26

9:00 pm-9:45 am

1 stop24h 45m

$1,105

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 9/9

3:10 pm-9:40 am

1 stop30h 30m

Singapore Changi

Sat 9/19

9:00 pm-9:45 am

1 stop24h 45m

$1,106

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

Mon 6/22

9:00 pm-9:45 am

1 stop24h 45m

$1,117

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 5/8

9:00 pm-9:20 am

1 stop24h 20m

Singapore Changi

Fri 5/22

7:40 pm-6:10 pm

1 stop34h 30m

$1,119
Quickest round-trip

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 9/9

1:15 am-11:55 am

1 stop22h 40m

Singapore Changi

Sat 9/19

1:10 pm-10:00 pm

1 stop20h 50m

$1,120

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 9/11

9:00 pm-8:50 am

1 stop23h 50m

Singapore Changi

Thu 9/17

3:15 am-3:40 pm

1 stop24h 25m

$1,127

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Tue 5/12

9:00 pm-12:10 am

2 stops39h 10m

Singapore Changi

Tue 5/26

7:40 pm-6:10 pm

1 stop34h 30m

$1,133

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 9/9

1:15 am-11:55 am

1 stop22h 40m

Singapore Changi

Thu 9/24

3:20 pm-5:40 am

2 stops26h 20m

$1,136

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sat 5/9

10:07 pm-5:15 am

2 stops43h 08m

Singapore Changi

Tue 5/26

7:00 am-11:43 am

2 stops40h 43m

$1,137

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 typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Singapore?

What is the cheapest month to fly to Singapore?

The month of October is, on average, the cheapest month to fly to Singapore from Washington, D.C. Dulles Intl Airport, with most prices found around $1,020. If you aren’t able to travel to Singapore during the month of October, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $1,077.

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 $1,280 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 $886 on momondo.

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

You could potentially save up to 10% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Singapore flight.

How have Washington, D.C. Dulles Intl Airport to Singapore flight prices changed over time?

As of April 2026, prices for Washington, D.C. Dulles Intl Airport to Singapore flights are approximately 2% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Singapore

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Singapore according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Singapore (IAD to SIN) 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

Fastest flight time

22h 10m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Singapore takes 22h 10m
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.
Search flight deals

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

  • How far is Washington, D.C. Dulles Intl to Singapore Changi by plane?

    Singapore Changi is 9647.6 mi away from Washington, D.C. Dulles Intl. A reasonable flight in good conditions will take 22h 10m.

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

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

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

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

    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 Changi Airport.

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

    The travel and health documents required for your trip to Singapore Changi Airport 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 Changi Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Singapore?

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
Korean AirPriceFrom $743Free CancellationRating
8.4
1,205 reviews
Search Korean Air flights
Air IndiaPriceFrom $807Free CancellationRating
5.5
2,966 reviews
Search Air India flights
Etihad AirwaysPriceFrom $828Free CancellationRating
7.3
1,428 reviews
Search Etihad Airways flights
Turkish AirlinesPriceFrom $917Free CancellationRating
7.3
4,305 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
9,557 reviews
Search United Airlines flights
JetBluePriceFrom $1,245Free CancellationRating
7.2
2,924 reviews
Search JetBlue flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Singapore. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Singapore from Washington, D.C. with this policy.

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?

If you are not ready to book a flight from Washington, D.C. to Singapore now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Singapore and let you know when they change.

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United Airlines
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Etihad Airways
Korean Air
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