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

Air Canada, at $1,086, 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 Korean Air. Air Canada is 10% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Singapore one-way?

For one-way options, check prices for IndiGo. According to our data, you can fly for as low as $420. Users have also found prices from $423 and $445 on Air India and Turkish Airlines, respectively.

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, Sultan Ahmet Camii, and Beyazit Meydani. Taksim Square, Sultan Ahmet Camii, and Beyazit Meydani can be accessed by traveling approximately 20.8 mi, 22.3 mi, and 21.7 mi, respectively from Istanbul. Travelers can rent a car at Istanbul for an average daily rate of $40 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?

October can be a great time to fly to Singapore from Washington, D.C. Dulles Intl Airport with a flight ticket averaging about $1,231. Cheapflights users have found deals in the month of October for as cheap as $653. 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 10 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.

$420+ Flights from Washington, D.C. Dulles Intl Airport to Singapore

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Singapore Changi are usually found in November or March, booked 52 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	$1,086 (Air Canada)
One-way from	$420 (Booking.com)
Popular in	December
Cheapest in	November
Average price	$1,497

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. 2% potential increase in price ($34 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($48 potential savings vs. average RT price).

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Average for round-trip flights in June 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 June 12, 2025.

Wed 7/165:12 pmIAD - SIN

2 stops49h 53mAir Canada

Tue 7/229:10 amSIN - IAD

2 stops36h 27mAir Canada

Deal found 6/10

$1,086

Wed 7/91:30 pmIAD - SIN

1 stop31h 15mTurkish Airlines

Tue 10/75:10 amSIN - IAD

1 stop26h 35mTurkish Airlines

Deal found 6/11

$1,095

Mon 9/86:00 amIAD - SIN

2 stops29h 40mKorean Air

Wed 9/171:10 amSIN - IAD

2 stops32h 03mKorean Air

Deal found 6/12

$1,096

Sun 12/1411:00 amIAD - SIN

1 stop31h 00mAir India

Mon 12/228:20 amSIN - IAD

1 stop35h 30mAir India

Deal found 6/12

$1,100

Thu 11/138:05 pmIAD - SIN

1 stop29h 50mQatar Airways

Tue 11/185:25 pmSIN - IAD

2 stops27h 55mQatar Airways

Deal found 6/12

$1,102

Wed 7/161:30 pmIAD - SIN

1 stop40h 25mMultiple Airlines

Tue 7/227:45 pmSIN - IAD

2 stops36h 00mMultiple Airlines

Deal found 6/10

$1,103

Thu 7/109:40 pmIAD - SIN

2 stops32h 05mIndiGo

Thu 7/177:45 pmSIN - IAD

2 stops36h 00mIndiGo

Deal found 6/10

$1,135

Thu 7/316:32 amIAD - SIN

1 stop23h 53mUnited Airlines

Mon 9/158:45 amSIN - IAD

1 stop24h 32mUnited Airlines

Deal found 6/11

$1,225

Thu 11/2010:00 amIAD - SIN

1 stop39h 50mEthiopian Air

Sun 11/302:00 amSIN - IAD

2 stops30h 05mEthiopian Air

Deal found 6/11

$1,240

Thu 9/186:00 pmIAD - SIN

2 stops29h 45mCathay Pacific

Sun 9/281:50 amSIN - IAD

2 stops45h 07mCathay Pacific

Deal found 6/10

$1,253

Mon 12/81:05 pmIAD - SIN

2 stops28h 50mANA

Mon 12/1510:20 pmSIN - IAD

2 stops26h 23mANA

Deal found 6/12

$1,274

Sat 10/119:00 pmIAD - SIN

1 stop24h 00mJetBlue

Sat 10/183:10 amSIN - IAD

1 stop24h 30mJetBlue

Deal found 6/10

$1,277

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 June 12, 2025.

Wed 7/165:12 pmIAD - SIN

2 stops49h 53mAir Canada

Tue 7/229:10 amSIN - IAD

2 stops36h 27mAir Canada

Deal found 6/10

$1,086

Wed 7/91:30 pmIAD - SIN

1 stop31h 15mTurkish Airlines

Tue 10/75:10 amSIN - IAD

1 stop26h 35mTurkish Airlines

Deal found 6/11

$1,095

Mon 9/86:00 amIAD - SIN

2 stops29h 40mKorean Air

Wed 9/171:10 amSIN - IAD

2 stops32h 03mKorean Air

Deal found 6/12

$1,096

Thu 11/138:05 pmIAD - SIN

1 stop29h 50mQatar Airways

Tue 11/185:25 pmSIN - IAD

2 stops27h 55mQatar Airways

Deal found 6/12

$1,102

Wed 7/161:30 pmIAD - SIN

1 stop40h 25mMultiple Airlines

Tue 7/227:45 pmSIN - IAD

2 stops36h 00mMultiple Airlines

Deal found 6/10

$1,103

Sun 7/2012:50 pmIAD - SIN

1 stop30h 25mAir India

Mon 8/48:45 amSIN - IAD

1 stop38h 30mAir India

Deal found 6/12

$1,116

Thu 7/109:40 pmIAD - SIN

2 stops32h 05mIndiGo

Thu 7/177:45 pmSIN - IAD

2 stops36h 00mIndiGo

Deal found 6/10

$1,135

Thu 7/316:32 amIAD - SIN

1 stop23h 53mUnited Airlines

Mon 9/158:45 amSIN - IAD

1 stop24h 32mUnited Airlines

Deal found 6/11

$1,225

Thu 11/2010:00 amIAD - SIN

1 stop39h 50mEthiopian Air

Sun 11/302:00 amSIN - IAD

2 stops30h 05mEthiopian Air

Deal found 6/11

$1,240

Thu 9/186:00 pmIAD - SIN

2 stops29h 45mCathay Pacific

Sun 9/281:50 amSIN - IAD

2 stops45h 07mCathay Pacific

Deal found 6/10

$1,253

Mon 12/81:05 pmIAD - SIN

2 stops28h 50mANA

Mon 12/1510:20 pmSIN - IAD

2 stops26h 23mANA

Deal found 6/12

$1,274

Sat 10/119:00 pmIAD - SIN

1 stop24h 00mJetBlue

Sat 10/183:10 amSIN - IAD

1 stop24h 30mJetBlue

Deal found 6/10

$1,277

Last-minute flights from Dulles Intl to Singapore
Discover last-minute flight deals from Dulles Intl to Singapore. Data last updated June 12, 2025 and is based on user searches.

Fri 6/1310:55 amIAD - SIN

1 stop39h 55mEthiopian Air

Tue 6/172:00 amSIN - IAD

2 stops30h 05mEthiopian Air

Deal found 6/10

$1,311

Wed 6/189:00 pmIAD - SIN

1 stop36h 00mQatar Airways

Wed 7/26:45 pmSIN - IAD

1 stop25h 55mQatar Airways

Deal found 6/11

$1,270

Wed 6/1810:55 amIAD - SIN

1 stop39h 55mEthiopian Air

Tue 7/12:00 amSIN - IAD

2 stops30h 05mEthiopian Air

Deal found 6/11

$1,490

Wed 6/186:30 amIAD - SIN

1 stop23h 55mUnited Airlines

Fri 7/48:45 amSIN - IAD

1 stop24h 36mUnited Airlines

Deal found 6/10

$1,883

Wed 6/189:40 pmIAD - SIN

1 stop23h 05mTurkish Airlines

Wed 7/211:10 pmSIN - IAD

1 stop24h 35mTurkish Airlines

Deal found 6/12

$5,198

Wed 6/189:00 amIAD - SIN

2 stops39h 00mEVA Air

Sun 6/291:10 pmSIN - IAD

2 stops29h 40mEVA Air

Deal found 6/12

$6,596

Wed 6/1810:55 amIAD - SIN

1 stop22h 50mEmirates

Tue 7/112:50 amSIN - IAD

1 stop43h 50mEmirates

Deal found 6/12

$7,168

Fri 6/2012:50 pmIAD - SIN

1 stop30h 25mAir India

Fri 6/278:45 amSIN - IAD

2 stops38h 30mAir India

Deal found 6/10

$1,695

Fri 6/205:25 pmIAD - SIN

1 stop34h 05mKLM

Thu 6/2612:40 amSIN - IAD

1 stop26h 55mKLM

Deal found 6/10

$1,802

Fri 6/2010:05 pmIAD - SIN

1 stop23h 35mEtihad Airways

Fri 6/279:10 pmSIN - IAD

1 stop31h 00mEtihad Airways

Deal found 6/10

$1,807

Fri 6/208:19 pmIAD - SIN

2 stops27h 41mMultiple Airlines

Fri 6/273:10 pmSIN - IAD

2 stops28h 09mMultiple Airlines

Deal found 6/10

$2,012

Sat 6/215:12 pmIAD - SIN

2 stops49h 53mAir Canada

Wed 7/26:15 amSIN - IAD

2 stops26h 46mAir Canada

Deal found 6/12

$1,707

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 June 12, 2025.

Tue 9/21:30 pmIAD - SIN

2 stops39h 50mIndiGo

Deal found 6/11

$420

Wed 8/2712:50 pmIAD - SIN

1 stop30h 25mAir India

Deal found 6/10

$423

Thu 8/141:30 pmIAD - SIN

1 stop40h 25mTurkish Airlines

Deal found 6/9

$445

Mon 8/49:40 pmIAD - SIN

3 stops59h 05mMultiple Airlines

Deal found 6/10

$482

Mon 8/411:00 amIAD - SIN

1 stop22h 00mQatar Airways

Deal found 6/10

$533

Tue 10/712:35 pmIAD - SIN

2 stops30h 30mAir Canada

Deal found 6/11

$663

Fri 7/2511:00 amIAD - SIN

1 stop22h 00mJetBlue

Deal found 6/10

$704

Mon 7/79:40 amIAD - SIN

2 stops26h 00mDelta

Deal found 6/9

$705

Fri 7/1111:00 amIAD - SIN

1 stop40h 45mAmerican Airlines

Deal found 6/9

$764

Tue 7/1510:08 pmIAD - SIN

1 stop32h 17mUnited Airlines

Deal found 6/11

$768

Thu 6/196:13 pmIAD - SIN

2 stops29h 47mEVA Air

Deal found 6/10

$953

Fri 6/2010:55 amIAD - SIN

1 stop39h 55mEthiopian Air

Deal found 6/10

$976

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

Wed 7/16

5:12 pm-7:05 am

2 stops49h 53m

Singapore Changi

Tue 7/22

9:10 am-9:37 am

2 stops36h 27m

$1,086

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 7/9

1:30 pm-8:45 am

1 stop31h 15m

Singapore Changi

Tue 10/7

5:10 am-7:45 pm

1 stop26h 35m

$1,095

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 9/8

6:00 am-11:40 pm

2 stops29h 40m

Singapore Changi

Wed 9/17

1:10 am-9:13 pm

2 stops32h 03m

$1,096

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 11/13

8:05 pm-2:55 pm

1 stop29h 50m

Singapore Changi

Tue 11/18

5:25 pm-8:20 am

2 stops27h 55m

$1,102

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 7/16

1:30 pm-5:55 pm

1 stop40h 25m

Singapore Changi

Tue 7/22

7:45 pm-7:45 pm

2 stops36h 00m

$1,103

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Sun 7/20

12:50 pm-7:15 am

1 stop30h 25m

Singapore Changi

Mon 8/4

8:45 am-11:15 am

1 stop38h 30m

$1,116

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 7/10

9:40 pm-5:45 pm

2 stops32h 05m

Singapore Changi

Thu 7/17

7:45 pm-7:45 pm

2 stops36h 00m

$1,135

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 7/31

6:32 am-6:25 pm

1 stop23h 53m

Singapore Changi

Mon 9/15

8:45 am-9:17 pm

1 stop24h 32m

$1,225

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 11/20

10:00 am-2:50 pm

1 stop39h 50m

Singapore Changi

Sun 11/30

2:00 am-7:05 pm

2 stops30h 05m

$1,240

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 9/18

6:00 pm-11:45 am

2 stops29h 45m

Singapore Changi

Sun 9/28

1:50 am-10:57 am

2 stops45h 07m

$1,253

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 29 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

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

Booking 52 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, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of $1,011). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of $1,684). 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.

Rainfall in Singapore by month

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.

Temperature in Singapore by month

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).

Reviews of airlines servicing Singapore

Get a feel of what it's like to fly with EVA Air, Korean Air and ANA from Washington, D.C. to Singapore by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

EVA Air

8.4

Very good

1,202 reviews

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Korean Air

8.4

Very good

1,088 reviews

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

ANA

8.3

Very good

882 reviews

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Singapore Airlines

8.1

Very good

1,302 reviews

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Delta

8.0

Very good

7,950 reviews

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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 10 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.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Singapore round-trip?
Air Canada, at $1,086, 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 Korean Air. Air Canada is 10% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Singapore one-way?
For one-way options, check prices for IndiGo. According to our data, you can fly for as low as $420. Users have also found prices from $423 and $445 on Air India and Turkish Airlines, respectively.
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, Sultan Ahmet Camii, and Beyazit Meydani. Taksim Square, Sultan Ahmet Camii, and Beyazit Meydani can be accessed by traveling approximately 20.8 mi, 22.3 mi, and 21.7 mi, respectively from Istanbul. Travelers can rent a car at Istanbul for an average daily rate of $40 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, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Singapore (average of $1,011). Flying from Washington, D.C. Dulles Intl Airport to Singapore in December is currently the most expensive (average of $1,684). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Singapore

Reagan-National to Singapore flights

Baltimore to Singapore flights

Other flights to Singapore

Top 10 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$825	Average$972	FlexibilityNo cancel fee	On-time77%
Etihad Airways	Cheapest$884	Average$1,304	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$935	Average$1,426	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$938	Average$1,585	FlexibilityNo cancel fee	On-time67%
Qatar Airways	Cheapest$1,006	Average$1,280	FlexibilityNo cancel fee	On-time68%
JetBlue	Cheapest$1,024	Average$1,139	FlexibilityNo cancel fee	On-time62%
Korean Air	Cheapest$1,037	Average$1,276	FlexibilityNo cancel fee	On-time81%
Singapore Airlines	Cheapest$1,097	Average$1,757	FlexibilityNo cancel fee	On-time81%
American Airlines	Cheapest$1,160	Average$1,413	FlexibilityNo cancel fee	On-time71%

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$420+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Singapore Changi are usually found in November or March, booked 52 days in advance, depart on a Friday or Sunday and return on a Friday

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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 June 12, 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 June 12, 2025.

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

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Singapore. Price data was last updated on June 9, 2025.

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

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

Find hourly flight availability from Dulles Intl to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Singapore. Price data was last updated on December 16, 2024.

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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?

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

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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?

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What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport 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 June 12, 2025.