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

Users have found that booking a flight from Singapore to Washington, D.C. Dulles Intl Airport at least 23 days early can save you up to 148% on average compared to booking a flight this week. If booking 23 days before your flight isn’t an option for you, users have found flights from Singapore to Washington, D.C. Dulles Intl Airport for as little as $1,167 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,167 for flights departing within the next 3 days.

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

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, August can be a great choice for travel to Washington, D.C. Dulles Intl Airport. Flights to Washington, D.C. Dulles Intl Airport from Singapore in August are about $1,283 on average during August, but can be found for as low as $593.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Singapore to Washington, D.C. Dulles Intl Airport as you normally would.

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

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

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

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

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

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

$1,155+ Flights from Singapore to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Singapore to Dulles Intl

Round-trip from	$979 (oojo)
One-way from	$494 (oojo)

From Singapore to Washington, D.C. Dulles Intl

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

Search Deals

Find flight deals from Singapore to Dulles Intl

Cheapest flights from Singapore to Dulles Intl
Explore the most affordable flight options available from Singapore to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

Tue 12/3112:05 amSIN - IAD

1 stop28h 25mSWISS

Sat 1/48:45 pmIAD - SIN

1 stop32h 10mSWISS

Deal found 12/17

$4,553

Best flights from Singapore to Dulles Intl
Discover carefully curated flight deals from Singapore to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 19, 2024.

Wed 6/1111:10 pmSIN - IAD

1 stop23h 40mTurkish Airlines

Wed 7/169:40 pmIAD - SIN

1 stop32h 15mTurkish Airlines

Deal found 12/18

$979

Mon 1/205:00 pmSIN - IAD

1 stop34h 45mSAUDIA

Sat 1/256:10 pmIAD - SIN

1 stop32h 20mSAUDIA

Deal found 12/18

$982

Mon 1/208:05 pmSIN - IAD

1 stop23h 45mAir India

Sat 1/2510:00 amIAD - SIN

1 stop22h 45mAir India

Deal found 12/18

$1,124

Thu 1/3010:20 pmSIN - IAD

1 stop31h 08mUnited Airlines

Wed 2/198:25 amIAD - SIN

2 stops34h 35mUnited Airlines

Deal found 12/19

$1,172

Mon 6/91:45 pmSIN - IAD

2 stops39h 05mMultiple Airlines

Tue 7/155:00 pmIAD - SIN

2 stops31h 35mMultiple Airlines

Deal found 12/18

$1,175

Fri 1/3110:00 amSIN - IAD

2 stops24h 21mAir Canada

Wed 2/192:35 pmIAD - SIN

2 stops28h 20mAir Canada

Deal found 12/19

$1,181

Thu 1/307:40 pmSIN - IAD

2 stops36h 50mIndiGo

Wed 2/199:25 pmIAD - SIN

2 stops30h 55mIndiGo

Deal found 12/18

$1,201

Thu 1/2312:05 amSIN - IAD

1 stop29h 20mSWISS

Fri 3/285:25 pmIAD - SIN

2 stops25h 30mSWISS

Deal found 12/19

$1,253

Mon 6/911:25 pmSIN - IAD

1 stop27h 45mAir China

Tue 7/155:35 pmIAD - SIN

2 stops40h 20mAir China

Deal found 12/18

$1,300

Fri 5/2311:25 pmSIN - IAD

1 stop28h 20mBritish Airways

Thu 7/310:40 pmIAD - SIN

1 stop31h 05mBritish Airways

Deal found 12/18

$1,336

Thu 3/273:15 amSIN - IAD

1 stop25h 40mQatar Airways

Thu 4/109:05 pmIAD - SIN

1 stop23h 55mQatar Airways

Deal found 12/19

$1,345

Thu 5/221:10 amSIN - IAD

1 stop22h 05mKorean Air

Thu 7/31:40 pmIAD - SIN

1 stop27h 20mKorean Air

Deal found 12/19

$1,373

Last-minute flights from Singapore to Dulles Intl
Discover last-minute flight deals from Singapore to Dulles Intl. Data last updated December 19, 2024 and is based on user searches.

Wed 1/12:40 pmSIN - IAD

2 stops54h 30mEmirates

Sat 1/410:30 amIAD - SIN

2 stops61h 20mEmirates

Deal found 12/17

$2,730

Sun 1/193:15 amSIN - IAD

1 stop25h 40mQatar Airways

Sat 1/258:05 pmIAD - SIN

1 stop36h 10mQatar Airways

Deal found 12/17

$1,647

Mon 1/205:00 pmSIN - IAD

1 stop34h 45mSAUDIA

Sat 1/256:10 pmIAD - SIN

1 stop32h 20mSAUDIA

Deal found 12/18

$982

Mon 1/208:05 pmSIN - IAD

1 stop23h 45mAir India

Sat 1/2510:00 amIAD - SIN

1 stop22h 45mAir India

Deal found 12/18

$1,124

Thu 1/2312:05 amSIN - IAD

1 stop29h 20mSWISS

Fri 3/285:25 pmIAD - SIN

2 stops25h 30mSWISS

Deal found 12/19

$1,253

Thu 1/3010:25 amSIN - IAD

1 stop46h 05mTurkish Airlines

Wed 2/199:25 pmIAD - SIN

1 stop22h 20mTurkish Airlines

Deal found 12/19

$1,015

Thu 1/3010:20 pmSIN - IAD

1 stop31h 08mUnited Airlines

Wed 2/198:25 amIAD - SIN

2 stops34h 35mUnited Airlines

Deal found 12/19

$1,172

Thu 1/308:15 amSIN - IAD

2 stops46h 42mMultiple Airlines

Wed 2/196:12 amIAD - SIN

2 stops35h 28mMultiple Airlines

Deal found 12/18

$1,176

Thu 1/307:40 pmSIN - IAD

2 stops36h 50mIndiGo

Wed 2/199:25 pmIAD - SIN

2 stops30h 55mIndiGo

Deal found 12/18

$1,201

Thu 1/302:00 amSIN - IAD

3 stops51h 13mEthiopian Air

Wed 2/198:40 pmIAD - SIN

2 stops29h 10mEthiopian Air

Deal found 12/19

$2,334

Fri 1/3110:00 amSIN - IAD

2 stops24h 21mAir Canada

Wed 2/192:35 pmIAD - SIN

2 stops28h 20mAir Canada

Deal found 12/19

$1,181

One-way flights from Singapore to Dulles Intl
Search for one-way flight options from Singapore to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated December 19, 2024.

Sat 2/155:00 pmSIN - IAD

1 stop34h 45mSAUDIA

Deal found 12/19

$494

Tue 3/257:40 pmSIN - IAD

2 stops36h 50mIndiGo

Deal found 12/17

$552

Fri 4/1811:25 pmSIN - IAD

1 stop27h 45mAir China

Deal found 12/19

$609

Sat 2/158:05 pmSIN - IAD

2 stops36h 25mMultiple Airlines

Deal found 12/18

$648

Sun 3/309:10 amSIN - IAD

1 stop37h 40mTurkish Airlines

Deal found 12/19

$667

Sat 4/128:20 amSIN - IAD

1 stop34h 55mAir India

Deal found 12/19

$725

Sat 2/151:45 pmSIN - IAD

2 stops55h 25mEmirates

Deal found 12/19

$775

Tue 12/2411:00 amSIN - IAD

1 stop35h 50mKorean Air

Deal found 12/18

$783

Sat 3/292:00 amSIN - IAD

1 stop26h 10mQatar Airways

Deal found 12/19

$818

Sat 2/1511:00 amSIN - IAD

2 stops25h 36mDelta

Deal found 12/19

$831

Sat 2/1510:00 amSIN - IAD

2 stops48h 23mAir Canada

Deal found 12/18

$832

Thu 1/1612:05 amSIN - IAD

1 stop28h 25mSWISS

Deal found 12/17

$914

Find flights from Singapore to Dulles Intl within your budget

Fly from

Fly to

Route

Depart

Return

Price

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 6/11

11:10 pm-10:50 am

1 stop23h 40m

Washington, D.C. Dulles Intl

Wed 7/16

9:40 pm-5:55 pm

1 stop32h 15m

$979

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 1/20

5:00 pm-2:45 pm

1 stop34h 45m

Washington, D.C. Dulles Intl

Sat 1/25

6:10 pm-3:30 pm

1 stop32h 20m

$982

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 1/20

8:05 pm-6:50 am

1 stop23h 45m

Washington, D.C. Dulles Intl

Sat 1/25

10:00 am-9:45 pm

1 stop22h 45m

$1,124

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 1/30

10:20 pm-4:28 pm

1 stop31h 08m

Washington, D.C. Dulles Intl

Wed 2/19

8:25 am-8:00 am

2 stops34h 35m

$1,172

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 6/9

1:45 pm-4:50 pm

2 stops39h 05m

Washington, D.C. Dulles Intl

Tue 7/15

5:00 pm-12:35 pm

2 stops31h 35m

$1,175

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 1/31

10:00 am-9:21 pm

2 stops24h 21m

Washington, D.C. Dulles Intl

Wed 2/19

2:35 pm-7:55 am

2 stops28h 20m

$1,181

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 1/30

7:40 pm-7:30 pm

2 stops36h 50m

Washington, D.C. Dulles Intl

Wed 2/19

9:25 pm-5:20 pm

2 stops30h 55m

$1,201

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 1/23

12:05 am-4:25 pm

1 stop29h 20m

Washington, D.C. Dulles Intl

Fri 3/28

5:25 pm-6:55 am

2 stops25h 30m

$1,253

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 6/9

11:25 pm-3:10 pm

1 stop27h 45m

Washington, D.C. Dulles Intl

Tue 7/15

5:35 pm-9:55 pm

2 stops40h 20m

$1,300

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 5/23

11:25 pm-3:45 pm

1 stop28h 20m

Washington, D.C. Dulles Intl

Thu 7/3

10:40 pm-5:45 pm

1 stop31h 05m

$1,336

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Showing 1-10 of 37 results

Best time to book a flight from Singapore to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Singapore 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.

Travel insights for flights from Singapore to Dulles Intl

Get recent, data-driven insights about flights from Singapore to Dulles Intl including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Singapore to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Singapore to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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.

Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Korean Air

8.4

Very good

1,021 reviews

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air

8.4

Very good

1,021 reviews

Korean Air

8.4

Very good

1,021 reviews

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

ANA

8.4

Very good

842 reviews

Korean Air

8.4

Very good

1,021 reviews

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines

8.3

Very good

1,442 reviews

Korean Air

8.4

Very good

1,021 reviews

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Asiana Airlines

8.3

Very good

477 reviews

Korean Air

8.4

Very good

1,021 reviews

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Emirates

8.1

Very good

3,410 reviews

Korean Air

8.4

Very good

1,021 reviews

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Related info for your journey

What are the cheapest airlines to fly from Singapore to Washington, D.C. Dulles Intl Airport one-way?
The cheapest airlines for a one-way flight from Singapore to Washington, D.C. Dulles Intl Airport are SAUDIA ($494), IndiGo ($552), and Air China ($609).
Can I find deals for flights from Singapore to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Singapore to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Singapore to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Singapore to Dulles Intl.
Can I find deals for business class flights from Singapore to Dulles Intl?
Yes. Cheapflights offers flight deals from Singapore to Dulles Intl 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 Singapore to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Singapore to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Singapore to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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

Top 2 airlines flying from Singapore to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$870	Average$1,466	FlexibilityNo cancel fee	On-time69%
Qatar Airways	Cheapest$1,372	Average$1,442	FlexibilityNo cancel fee	On-time68%

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$494+ Cheap flights from Singapore to Dulles Intl (IAD)

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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Singapore to Dulles Intl

Round-trip from

One-way from

Find flight deals from Singapore to Dulles Intl

Cheapest flights from Singapore to Dulles IntlExplore the most affordable flight options available from Singapore to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

Explore the most affordable flight options available from Singapore to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

Find flights from Singapore to Dulles Intl within your budget

Best time to book a flight from Singapore to Dulles Intl

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

Travel insights for flights from Singapore to Dulles Intl

Get recent, data-driven insights about flights from Singapore to Dulles Intl including ideal travel times, pricing trends, and more.

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

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

Related info for your journey

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

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Singapore to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Singapore to Dulles Intl

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Singapore to Dulles Intl
Explore the most affordable flight options available from Singapore to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.