What’s the cheapest layover airport for flights from Washington, D.C. Dulles Intl Airport to Singapore?

Istanbul (IST) is the most affordable 1-stop option, with an average round-trip price of $988.

What’s the fastest layover option from Washington, D.C. Dulles Intl Airport to Singapore?

Flights via Doha (DOH) have the shortest average one-way travel time for 1-stop routes: 22h 38m.

What’s the top layover airport for flights from Washington, D.C. Dulles Intl Airport to Singapore?

Doha (DOH) – chosen by Cheapflights users on 55% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Singapore on Cheapflights.

Which airport typically offers the quickest layover for flights from Washington, D.C. Dulles Intl Airport to Singapore?

Flights via Istanbul (IST) offer the fastest connection on this route, with an average layover time of 4h 24m.

How long is the flight from Washington, D.C. Dulles Intl Airport to Singapore?

There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Singapore in 32h 20m. Fly via Air Canada or United Airlines to get the fastest option. Airlines will cover a distance of 9644 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Singapore round-trip?

Air India, at $807, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Singapore.Alternate airlines to your destination round-trip include Turkish Airlines and Etihad Airways. Air India is 32% cheaper than the average price of flights available within the next 90 days to this destination.

In terms of precipitation, rainfall in Singapore ranges from 5.9 - 10.6 inches per month. December is typically the wettest month, when rainfall can reach 10.6 in. July is typically the driest time to visit Singapore when rainfall is around 5.9 in.

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 78.8 F).

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Singapore?

Consider American Airlines, Air Canada or Air India when booking your flight. These represent the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to Singapore.

Where are the most common layover locations when flying from Washington, D.C. Dulles Intl Airport to Singapore?

Washington, D.C. Dulles Intl Airport to Singapore flights have a layover in Istanbul most of the time.

Where are the least popular layover locations for Washington, D.C. Dulles Intl Airport to Singapore flights?

Of the flights from Washington, D.C. Dulles Intl Airport to Singapore that have layovers, the fewest flights stop in Doha.

What are some popular things to do or see while on a layover in Istanbul?

The majority of Istanbul visitors spend their time at Taksim Square, Beyazit Meydani, and Laleli Camii. Taksim Square, Beyazit Meydani, and Laleli Camii can be accessed by traveling approximately 20.8 mi, 21.7 mi, and 21.5 mi, respectively from Istanbul. Travelers can rent a car at Istanbul for an average daily rate of $44 to make sightseeing during their layover a little easier.

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Singapore?

Flights from Washington, D.C. Dulles Intl Airport to Singapore are found to be more expensive on Friday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Singapore.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Singapore?

August can be a great time to fly to Singapore from Washington, D.C. Dulles Intl Airport with a flight ticket averaging about $1,163. Cheapflights users have found deals in the month of August for as cheap as $676. The most expensive prices can be found in the month of December.

What airport do you fly into for flights to Singapore from Washington, D.C. Dulles Intl?

Singapore Changi (SIN) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Singapore. You should not have trouble finding flights to Changi from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 9 airlines have flights to the Singapore airport from Washington, D.C. Dulles Intl. It is only a 10.5 mi journey from Changi (SIN) to Singapore’s city center.

Can I find deals for flights from Dulles Intl to Singapore that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Singapore flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Singapore?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Singapore.

Can I find deals for business class flights from Dulles Intl to Singapore?

Yes. Cheapflights offers flight deals from Dulles Intl to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$426+ Flights from Washington, D.C. Dulles Intl Airport to Singapore

Q: How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Singapore?

Airfare is below average for this route at the moment. Washington, D.C. Dulles Intl Airport to Singapore flights typically cost between $985 and $1,259 in February. The cheapest round-trip price found within the last 3 days was $871 on Singapore Airlines (Feb 2-Feb 19).

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Singapore Changi are usually found in November or January, booked 83 days in advance, depart on a Friday or Sunday and return on a Friday

Cheap flight deals from Dulles Intl to Singapore

Round-trip from	$871 (oojo)
One-way from	$426 (Kiwi.com)
Popular in	December
Cheapest in	November
Average price	$1,095

From Washington, D.C. Dulles Intl to Singapore Changi

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One-way flight from Washington, D.C. Dulles Intl to Singapore Changi

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Highest demand for flights based on searches. 5% potential increase in price ($65 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($55 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Dulles Intl to Singapore

Cheapest flights from Dulles Intl to Singapore
Explore the most affordable flight options available from Dulles Intl to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

vie. 9/1211:00 amIAD - SIN

1 stop22h 00mAlaska Airlines

vie. 9/196:45 pmSIN - IAD

1 stop32h 55mAlaska Airlines

Deal found 9/11

$885

dom. 11/99:45 amIAD - SIN

2 stops32h 15mAir Canada

mar. 11/188:50 amSIN - IAD

2 stops25h 04mAir Canada

Deal found 9/9

$934

mar. 9/161:30 pmIAD - SIN

2 stops39h 45mIndiGo

mar. 9/237:45 pmSIN - IAD

2 stops36h 00mIndiGo

Deal found 9/9

$947

jue. 10/307:43 amIAD - SIN

1 stop46h 02mSingapore Airlines

jue. 11/139:00 amSIN - IAD

1 stop34h 23mSingapore Airlines

Deal found 9/9

$957

sáb. 11/86:13 pmIAD - SIN

1 stop34h 32mSingapore Airlines

mar. 11/189:00 amSIN - IAD

1 stop34h 23mSingapore Airlines

Deal found 9/10

$972

sáb. 10/1110:05 pmIAD - SIN

2 stops27h 15mMultiple Airlines

dom. 10/266:10 amSIN - IAD

2 stops46h 40mMultiple Airlines

Deal found 9/10

$979

sáb. 10/111:30 pmIAD - SIN

2 stops39h 45mIndiGo

lun. 10/207:45 pmSIN - IAD

2 stops36h 00mIndiGo

Deal found 9/10

$983

sáb. 11/86:13 pmIAD - SIN

1 stop34h 32mSingapore Airlines

vie. 11/149:00 amSIN - IAD

1 stop34h 23mSingapore Airlines

Deal found 9/8

$986

jue. 9/119:35 amIAD - SIN

2 stops33h 30mAir Canada

mar. 9/309:10 amSIN - IAD

2 stops36h 28mAir Canada

Deal found 9/9

$995

Best flights from Dulles Intl to Singapore
Discover carefully curated flight deals from Dulles Intl to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated septiembre 11, 2025.

sáb. 10/115:22 pmIAD - SIN

2 stops49h 43mAir Canada

jue. 10/169:10 amSIN - IAD

2 stops36h 28mAir Canada

Deal found 9/9

$1,108

dom. 10/1210:05 pmIAD - SIN

1 stop32h 20mUnited Airlines

lun. 10/208:40 pmSIN - IAD

1 stop30h 06mUnited Airlines

Deal found 9/9

$1,125

lun. 12/86:00 pmIAD - SIN

1 stop25h 00mUnited Airlines

mié. 1/1410:10 amSIN - IAD

1 stop23h 59mUnited Airlines

Deal found 9/9

$1,125

lun. 2/23:58 pmIAD - SIN

2 stops27h 02mUnited Airlines

jue. 2/1910:10 amSIN - IAD

1 stop27h 14mUnited Airlines

Deal found 9/10

$1,125

lun. 3/910:05 pmIAD - SIN

1 stop34h 10mUnited Airlines

jue. 3/1210:10 amSIN - IAD

1 stop31h 31mUnited Airlines

Deal found 9/8

$1,125

mar. 1/64:10 pmIAD - SIN

1 stop26h 50mUnited Airlines

mar. 1/1310:10 amSIN - IAD

2 stops24h 09mUnited Airlines

Deal found 9/8

$1,129

mar. 10/142:45 pmIAD - SIN

2 stops27h 30mUnited Airlines

sáb. 10/258:45 amSIN - IAD

1 stop24h 36mUnited Airlines

Deal found 9/10

$1,175

sáb. 10/115:55 pmIAD - SIN

2 stops36h 30mUnited Airlines

lun. 10/208:40 pmSIN - IAD

1 stop23h 35mUnited Airlines

Deal found 9/10

$1,179

Last-minute flights from Dulles Intl to Singapore
Discover last-minute flight deals from Dulles Intl to Singapore. Data last updated septiembre 11, 2025 and is based on user searches.

jue. 9/119:35 amIAD - SIN

2 stops33h 30mAir Canada

mar. 9/309:10 amSIN - IAD

2 stops36h 28mAir Canada

Deal found 9/9

$995

vie. 9/1211:00 amIAD - SIN

1 stop22h 00mAlaska Airlines

vie. 9/196:45 pmSIN - IAD

1 stop32h 55mAlaska Airlines

Deal found 9/11

$885

mar. 9/161:30 pmIAD - SIN

2 stops39h 45mIndiGo

mar. 9/237:45 pmSIN - IAD

2 stops36h 00mIndiGo

Deal found 9/9

$947

mar. 9/161:00 pmIAD - SIN

2 stops30h 05mAir Canada

mar. 9/239:10 amSIN - IAD

1 stop33h 21mAir Canada

Deal found 9/10

$1,016

mié. 9/241:30 pmIAD - SIN

2 stops39h 45mIndiGo

mar. 9/307:45 pmSIN - IAD

2 stops36h 00mIndiGo

Deal found 9/9

$1,012

sáb. 10/1110:05 pmIAD - SIN

2 stops27h 15mMultiple Airlines

dom. 10/266:10 amSIN - IAD

2 stops46h 40mMultiple Airlines

Deal found 9/10

$979

sáb. 10/111:30 pmIAD - SIN

2 stops39h 45mIndiGo

lun. 10/207:45 pmSIN - IAD

2 stops36h 00mIndiGo

Deal found 9/10

$983

dom. 10/129:40 pmIAD - SIN

2 stops31h 35mIndiGo

mar. 10/217:45 pmSIN - IAD

2 stops36h 00mIndiGo

Deal found 9/10

$997

sáb. 10/255:37 pmIAD - SIN

2 stops49h 23mAir Canada

sáb. 11/18:50 amSIN - IAD

2 stops24h 04mAir Canada

Deal found 9/10

$1,017

jue. 10/307:43 amIAD - SIN

1 stop46h 02mSingapore Airlines

jue. 11/139:00 amSIN - IAD

1 stop34h 23mSingapore Airlines

Deal found 9/9

$957

One-way flights from Dulles Intl to Singapore
Search for one-way flight options from Dulles Intl to Singapore. Find affordable one-way fares based on user searches. Data last updated septiembre 11, 2025.

sáb. 10/189:38 pmIAD - SIN

3 stops37h 42mMultiple Airlines

Deal found 9/9

$426

mar. 3/107:00 amIAD - SIN

3 stops42h 00mMultiple Airlines

Deal found 9/9

$432

mié. 9/242:25 pmIAD - SIN

3 stops34h 55mMultiple Airlines

Deal found 9/10

$433

mié. 9/176:09 pmIAD - SIN

2 stops31h 11mMultiple Airlines

Deal found 9/9

$438

sáb. 9/277:14 pmIAD - SIN

3 stops40h 06mMultiple Airlines

Deal found 9/9

$441

dom. 11/166:00 amIAD - SIN

3 stops53h 10mMultiple Airlines

Deal found 9/11

$445

sáb. 10/254:22 pmIAD - SIN

3 stops43h 18mMultiple Airlines

Deal found 9/10

$446

mié. 10/159:00 amIAD - SIN

3 stops50h 20mMultiple Airlines

Deal found 9/11

$453

sáb. 11/224:25 pmIAD - SIN

2 stops49h 35mAir Canada

Deal found 9/9

$454

sáb. 9/207:14 pmIAD - SIN

3 stops40h 06mMultiple Airlines

Deal found 9/11

$456

lun. 2/99:10 pmIAD - SIN

2 stops31h 10mIndiGo

Deal found 9/10

$460

dom. 1/181:30 pmIAD - SIN

2 stops38h 50mIndiGo

Deal found 9/8

$462

Cheapflights Fare Finder

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

sáb. 10/11

5:22 pm-7:05 am

2 stops49h 43m

Singapore Changi

jue. 10/16

9:10 am-9:38 am

2 stops36h 28m

$1,108

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

dom. 10/12

10:05 pm-6:25 pm

1 stop32h 20m

Singapore Changi

lun. 10/20

8:40 pm-2:46 pm

1 stop30h 06m

$1,125

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

lun. 12/8

6:00 pm-8:00 am

1 stop25h 00m

Singapore Changi

mié. 1/14

10:10 am-9:09 pm

1 stop23h 59m

$1,125

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

lun. 2/2

3:58 pm-8:00 am

2 stops27h 02m

Singapore Changi

jue. 2/19

10:10 am-12:24 am

1 stop27h 14m

$1,125

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

lun. 3/9

10:05 pm-8:15 pm

1 stop34h 10m

Singapore Changi

jue. 3/12

10:10 am-5:41 am

1 stop31h 31m

$1,125

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

mar. 1/6

4:10 pm-8:00 am

1 stop26h 50m

Singapore Changi

mar. 1/13

10:10 am-9:19 pm

2 stops24h 09m

$1,129

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

mar. 10/14

2:45 pm-6:15 am

2 stops27h 30m

Singapore Changi

sáb. 10/25

8:45 am-9:21 pm

1 stop24h 36m

$1,175

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

sáb. 10/11

5:55 pm-6:25 pm

2 stops36h 30m

Singapore Changi

lun. 10/20

8:40 pm-8:15 am

1 stop23h 35m

$1,179

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

dom. 11/16

9:45 am-7:00 am

2 stops32h 15m

$446

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

sáb. 11/22

4:25 pm-7:00 am

2 stops49h 35m

$454

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 18 results

Best time to book a flight from Dulles Intl to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Dulles Intl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Singapore

Prices

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Singapore?

Booking 82 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Singapore. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Singapore?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of $1,002). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of $1,665). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to SIN?

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Singapore is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 25% on airfare.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Singapore?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Singapore flight should consider departing on Thursday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Singapore?

Reviews of airlines servicing Singapore

Peruse reviews from past customers who have flown with Korean Air, Qatar Airways, and Etihad Airways from Washington, D.C. Dulles Intl Airport to Singapore to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Korean Air

8.4

Very good

1,139 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Qatar Airways

7.4

Good

3,624 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Etihad Airways

7.4

Good

1,250 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

United Airlines

7.4

Good

8,937 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Turkish Airlines

7.3

Good

3,968 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Related info for your journey

What airport do you fly into for flights to Singapore from Washington, D.C. Dulles Intl?
Singapore Changi (SIN) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Singapore. You should not have trouble finding flights to Changi from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 9 airlines have flights to the Singapore airport from Washington, D.C. Dulles Intl. It is only a 10.5 mi journey from Changi (SIN) to Singapore’s city center.
How long is the flight from Washington, D.C. Dulles Intl Airport to Singapore?
There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Singapore in 32h 20m. Fly via Air Canada or United Airlines to get the fastest option. Airlines will cover a distance of 9644 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Singapore round-trip?
Air India, at $807, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Singapore.Alternate airlines to your destination round-trip include Turkish Airlines and Etihad Airways. Air India is 32% cheaper than the average price of flights available within the next 90 days to this destination.
Where are the most common layover locations when flying from Washington, D.C. Dulles Intl Airport to Singapore?
Washington, D.C. Dulles Intl Airport to Singapore flights have a layover in Istanbul most of the time.
What are some popular things to do or see while on a layover in Istanbul?
The majority of Istanbul visitors spend their time at Taksim Square, Beyazit Meydani, and Laleli Camii. Taksim Square, Beyazit Meydani, and Laleli Camii can be accessed by traveling approximately 20.8 mi, 21.7 mi, and 21.5 mi, respectively from Istanbul. Travelers can rent a car at Istanbul for an average daily rate of $44 to make sightseeing during their layover a little easier.
Where are the least popular layover locations for Washington, D.C. Dulles Intl Airport to Singapore flights?
Of the flights from Washington, D.C. Dulles Intl Airport to Singapore that have layovers, the fewest flights stop in Doha.
Can I find deals for flights from Dulles Intl to Singapore that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Singapore flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Singapore?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Singapore.
Can I find deals for business class flights from Dulles Intl to Singapore?
Yes. Cheapflights offers flight deals from Dulles Intl to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Singapore?
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of $1,002). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of $1,665). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Dulles Intl to Singapore

Reagan-National to Singapore flights

Baltimore to Singapore flights

Other flights to Singapore

Top 9 airlines flying from Dulles Intl to Singapore

Airline	Cheapest	Average	Flexibility	On-time
Air India	Cheapest$807	Average$996	FlexibilityNo cancel fee	On-timeN/A
Turkish Airlines	Cheapest$816	Average$943	FlexibilityNo cancel fee	On-time77%
Etihad Airways	Cheapest$833	Average$932	FlexibilityNo cancel fee	On-time75%
Air Canada	Cheapest$938	Average$1,526	FlexibilityNo cancel fee	On-time67%
Korean Air	Cheapest$944	Average$1,199	FlexibilityNo cancel fee	On-time81%
Qatar Airways	Cheapest$996	Average$1,288	FlexibilityNo cancel fee	On-time68%
JetBlue	Cheapest$1,024	Average$1,139	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$1,192	Average$1,452	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$1,196	Average$1,223	FlexibilityNo cancel fee	On-time71%

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$426+ Cheap flights from Dulles Intl (IAD) to Singapore (SIN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Singapore with Cheapflights

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Singapore Changi are usually found in November or January, booked 83 days in advance, depart on a Friday or Sunday and return on a Friday

Cheap flight deals from Dulles Intl to Singapore

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Find flight deals from Dulles Intl to Singapore

Cheapest flights from Dulles Intl to SingaporeExplore the most affordable flight options available from Dulles Intl to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

Explore the most affordable flight options available from Dulles Intl to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Singapore that are best for you.

Best time to book a flight from Dulles Intl to Singapore

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Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Singapore

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How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Singapore?

What’s the top layover airport for flights from Washington, D.C. Dulles Intl Airport to Singapore?

What’s the fastest layover option from Washington, D.C. Dulles Intl Airport to Singapore?

What’s the fastest layover option from Washington, D.C. Dulles Intl Airport to Singapore?

Which airport typically offers the quickest layover for flights from Washington, D.C. Dulles Intl Airport to Singapore?

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Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Singapore from Washington, D.C. Dulles Intl?

How long is the flight from Washington, D.C. Dulles Intl Airport to Singapore?

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Singapore round-trip?

Where are the most common layover locations when flying from Washington, D.C. Dulles Intl Airport to Singapore?

What are some popular things to do or see while on a layover in Istanbul?

Where are the least popular layover locations for Washington, D.C. Dulles Intl Airport to Singapore flights?

Can I find deals for flights from Dulles Intl to Singapore that include hotel bookings?

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Can I find deals for business class flights from Dulles Intl to Singapore?

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Singapore?

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Alternative routes for Dulles Intl to Singapore

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Top 9 airlines flying from Dulles Intl to Singapore

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Cheapest flights from Dulles Intl to Singapore
Explore the most affordable flight options available from Dulles Intl to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.