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S$ 542+ Cheap flights to Dulles Intl

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 23-7. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
5 May — 12 May1
1 adult

Flights to Dulles Intl in 2025

Find the latest flights to Dulles Intl in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 200,618 searches and data was last updated on 30 April 2025.

Return from

S$ 1,350

One-way from

S$ 542

Popular in

July

Cheapest in

August

Average price

S$ 1,571
1-6-30-6
  • 1-6-30-6
  • 4 total stops
  • 69h 54m total
  • Singapore to Washington, D.C.
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SAUDIA
  • SAUDIA
  • 23-7
  • 1 total stop
  • 24h 00m total
  • Singapore to Washington, D.C.
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Highest demand for flights based on searches. 1% potential increase in price (S$ 23 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (S$ 40 potential savings vs. average return price).
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Average for return flights in April 2025
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Find flight deals to Dulles Intl Airport

Cheapest flights to Dulles Intl Airport
Explore the most affordable flight options available to Dulles Intl Airport. Find the lowest fares based on data from user searches, with prices last updated on 30 April 2025.

Sun 5-1009:10SIN - IAD
2 stops36h 28mAir Canada
Sat 18-1017:10IAD - SIN
2 stops49h 55mAir Canada
Deal found 28-4S$ 1,371
Sat 10-502:00SIN - IAD
2 stops41h 43mMultiple Airlines
Tue 15-708:10IAD - SIN
2 stops40h 25mMultiple Airlines
Deal found 28-4S$ 1,375
Sun 5-1010:15SIN - IAD
1 stop37h 30mTurkish Airlines
Sun 19-1013:30IAD - SIN
1 stop31h 15mTurkish Airlines
Deal found 28-4S$ 1,386
Wed 30-723:00SIN - IAD
1 stop44h 40mAir India
Fri 8-811:00IAD - SIN
1 stop32h 30mAir India
Deal found 29-4S$ 1,395
Mon 30-611:05SIN - IAD
1 stop40h 40mUnited Airlines
Tue 15-708:30IAD - SIN
2 stops33h 45mUnited Airlines
Deal found 28-4S$ 1,478
Fri 1-819:45SIN - IAD
2 stops36h 00mIndiGo
Mon 15-921:40IAD - SIN
2 stops31h 40mIndiGo
Deal found 27-4S$ 1,548
Fri 20-623:30SIN - IAD
2 stops32h 30mSWISS
Wed 27-817:45IAD - SIN
1 stop25h 10mSWISS
Deal found 29-4S$ 1,609
Mon 30-602:30SIN - IAD
1 stop25h 15mSAUDIA
Thu 17-718:50IAD - SIN
1 stop80h 55mSAUDIA
Deal found 28-4S$ 1,694
Mon 2-623:20SIN - IAD
1 stop32h 50mBritish Airways
Mon 30-622:40IAD - SIN
1 stop29h 25mBritish Airways
Deal found 29-4S$ 1,718
Wed 14-510:30SIN - IAD
1 stop34h 10mQatar Airways
Thu 7-811:00IAD - SIN
1 stop22h 00mQatar Airways
Deal found 29-4S$ 1,730
Wed 2-721:10SIN - IAD
1 stop31h 00mEtihad Airways
Thu 17-722:05IAD - SIN
1 stop23h 35mEtihad Airways
Deal found 28-4S$ 1,804
Wed 14-522:10SIN - IAD
1 stop23h 55mANA
Thu 7-808:30IAD - SIN
2 stops28h 15mANA
Deal found 28-4S$ 1,905

Cheapflights Fare Finder

Locate flights to Dulles Intl that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 200,618 searches and data was last updated on 30 April 2025.
Use the filters below to find and compare flights to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Singapore

Route

Depart

Return

Price

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 5-10

09:10-09:38

2 stops36h 28m

Washington, D.C. Dulles Intl

Sat 18-10

17:10-07:05

2 stops49h 55m

S$ 1,371

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 10-5

02:00-07:43

2 stops41h 43m

Washington, D.C. Dulles Intl

Tue 15-7

08:10-12:35

2 stops40h 25m

S$ 1,375

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 5-10

10:15-11:45

1 stop37h 30m

Washington, D.C. Dulles Intl

Sun 19-10

13:30-08:45

1 stop31h 15m

S$ 1,386

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 30-7

23:00-07:40

1 stop44h 40m

Washington, D.C. Dulles Intl

Fri 8-8

11:00-07:30

1 stop32h 30m

S$ 1,395

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 30-6

11:05-15:45

1 stop40h 40m

Washington, D.C. Dulles Intl

Tue 15-7

08:30-06:15

2 stops33h 45m

S$ 1,478

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 1-8

19:45-19:45

2 stops36h 00m

Washington, D.C. Dulles Intl

Mon 15-9

21:40-17:20

2 stops31h 40m

S$ 1,548

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 20-6

23:30-20:00

2 stops32h 30m

Washington, D.C. Dulles Intl

Wed 27-8

17:45-06:55

1 stop25h 10m

S$ 1,609

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 30-6

02:30-15:45

1 stop25h 15m

Washington, D.C. Dulles Intl

Thu 17-7

18:50-15:45

1 stop80h 55m

S$ 1,694

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 2-6

23:20-20:10

1 stop32h 50m

Washington, D.C. Dulles Intl

Mon 30-6

22:40-16:05

1 stop29h 25m

S$ 1,718

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 14-5

10:30-08:40

1 stop34h 10m

Washington, D.C. Dulles Intl

Thu 7-8

11:00-21:00

1 stop22h 00m

S$ 1,730

Flights are sorted by cheapest return flights first.

Deals found on 28-4

Showing 1-10 of 33 results
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Best time to book a flight to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl with our price prediction graph.
Estimated return 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 to Washington, D.C. Dulles Intl Airport

When is the best time to book a flight to Dulles Intl?

Use this chart to determine the optimal time to book a return flight from Singapore to Dulles Intl. Price data was last updated on 25 April 2025.

The price you pay for your flight to Dulles Intl may vary depending on when you book. For the best chance of a lower fare, look to book 78 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

How long is the flight to Dulles Intl?

On average, a flight from Singapore to Dulles Intl takes 23 hours 10 minutes. Flights to Dulles Intl from other popular cities in Singapore will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Dulles Intl?

The most popular airlines flying from Singapore to Dulles Intl are United Airlines, Qatar Airways and Turkish Airlines.

United Airlines

United Airlines

From S$ 1,073

Qatar Airways

Qatar Airways

From S$ 1,382

Turkish Airlines

Turkish Airlines

From S$ 977

Korean Air

Korean Air

From S$ 1,368

What are the cheapest airlines that fly to Dulles Intl?

The cheapest airlines flying from Singapore to Dulles Intl are SAUDIA, Turkish Airlines and United Airlines.

Rainfall in Dulles Intl by month

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

In terms of precipitation, rainfall in Dulles Intl ranges from 66.0 - 102.0 mm per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Dulles Intl when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

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

If weather is an important factor for your trip to Dulles Intl, 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated 30 April 2025.
Peruse reviews from past customers who have flown Korean Air, China Airlines and ANA to Washington, D.C. to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Crew

8.7

Overall

8.4

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
1,066 reviews
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Crew

8.7

Overall

8.4

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.
China Airlines
8.3
Very Good
732 reviews
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Crew

8.7

Overall

8.4

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.
ANA
8.3
Very Good
852 reviews
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Crew

8.7

Overall

8.4

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.
Emirates
8.0
Very Good
3,215 reviews
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Crew

8.7

Overall

8.4

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.
Delta
8.0
Very Good
7,936 reviews
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Crew

8.7

Overall

8.4

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.

FAQs about flying to Dulles Intl

  • Can I find cheaper flights to Dulles Intl if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Dulles Intl on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Dulles Intl?

    Based on reviews from Cheapflights users, SAUDIA is rated the highest out of the airlines that fly to Dulles Intl.

  • What is the cheapest airport to fly to in Dulles Intl?

    Washington, D.C. Dulles Intl is currently the cheapest airport to fly to in Dulles Intl. One-way flights to Washington, D.C. Dulles Intl typically cost S$ 115, while return flights cost around S$ 93.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around S$ 71, however they can be found for as little as S$ 71.

  • Does Washington, D.C. Dulles Intl have rental cars?

    Yes. Those touching down at Washington, D.C. Dulles Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Washington, D.C. Dulles Intl?

    Yes. Washington, D.C. Dulles Intl has hotels nearby for those requiring accommodations. Sleepbox Lounge Iad, Dulles International Airport is the closest property to Washington, D.C. Dulles Intl (0.0 km away from Washington, D.C. Dulles Intl).

See more FAQs

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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights to Dulles Intl.

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Cheapflights does show flights with no change fees to all users. To see these options for flights to Dulles Intl, users can toggle the no change fees filter when performing a flight search.

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Yes, Cheapflights offers price alerts on Dulles Intl flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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