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S$ 532+ 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 11-4. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
7 Apr — 14 Apr1
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 2 April 2025.

Return from

S$ 868

One-way from

S$ 532

Popular in

July

Cheapest in

August

Average price

S$ 1,567
SAUDIA
  • SAUDIA
  • 23-4-10-5
  • 2 total stops
  • 56h 55m total
  • Singapore to Washington, D.C.
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SAUDIA
  • SAUDIA
  • 11-4
  • 1 total stop
  • 25h 15m total
  • Singapore to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (S$ 49 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (S$ 42 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 2 April 2025.

Wed 23-403:45SIN - IAD
1 stop24h 00mSAUDIA
Sat 10-518:50IAD - SIN
1 stop32h 55mSAUDIA
Deal found 1-4S$ 868
Wed 23-403:45SIN - IAD
1 stop24h 00mMultiple Airlines
Tue 29-413:30IAD - SIN
2 stops40h 15mMultiple Airlines
Deal found 1-4S$ 1,199
Tue 13-506:15SIN - IAD
2 stops26h 53mAir Canada
Thu 7-814:25IAD - SIN
2 stops28h 40mAir Canada
Deal found 1-4S$ 1,266
Fri 16-510:15SIN - IAD
1 stop45h 30mTurkish Airlines
Fri 23-513:30IAD - SIN
1 stop31h 15mTurkish Airlines
Deal found 1-4S$ 1,371
Tue 27-509:00SIN - IAD
1 stop34h 40mAir India
Fri 22-811:00IAD - SIN
1 stop22h 45mAir India
Deal found 1-4S$ 1,399
Mon 26-519:45SIN - IAD
2 stops36h 00mIndiGo
Sun 17-813:30IAD - SIN
2 stops39h 50mIndiGo
Deal found 1-4S$ 1,466
Tue 13-511:05SIN - IAD
1 stop40h 35mUnited Airlines
Wed 6-812:50IAD - SIN
2 stops29h 25mUnited Airlines
Deal found 1-4S$ 1,489
Tue 13-501:10SIN - IAD
1 stop22h 05mKorean Air
Thu 7-813:30IAD - SIN
1 stop22h 10mKorean Air
Deal found 1-4S$ 1,514
Sat 17-523:30SIN - IAD
1 stop27h 45mSWISS
Sat 24-520:45IAD - SIN
2 stops37h 10mSWISS
Deal found 2-4S$ 1,592
Mon 12-501:55SIN - IAD
2 stops33h 02mAmerican Airlines
Wed 6-807:07IAD - SIN
2 stops35h 03mAmerican Airlines
Deal found 1-4S$ 1,611
Thu 15-523:25SIN - IAD
1 stop32h 05mAir China
Fri 8-823:00IAD - SIN
1 stop34h 55mAir China
Deal found 1-4S$ 1,653
Mon 26-503:10SIN - IAD
1 stop24h 30mQatar Airways
Wed 20-811:00IAD - SIN
1 stop22h 00mQatar Airways
Deal found 1-4S$ 1,754

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 2 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

Wed 23-4

03:45-15:45

1 stop24h 00m

Washington, D.C. Dulles Intl

Sat 10-5

18:50-15:45

1 stop32h 55m

S$ 868

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 23-4

03:45-15:45

1 stop24h 00m

Washington, D.C. Dulles Intl

Tue 29-4

13:30-17:45

2 stops40h 15m

S$ 1,199

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 13-5

06:15-21:08

2 stops26h 53m

Washington, D.C. Dulles Intl

Thu 7-8

14:25-07:05

2 stops28h 40m

S$ 1,266

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 16-5

10:15-19:45

1 stop45h 30m

Washington, D.C. Dulles Intl

Fri 23-5

13:30-08:45

1 stop31h 15m

S$ 1,371

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 27-5

09:00-07:40

1 stop34h 40m

Washington, D.C. Dulles Intl

Fri 22-8

11:00-21:45

1 stop22h 45m

S$ 1,399

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 26-5

19:45-19:45

2 stops36h 00m

Washington, D.C. Dulles Intl

Sun 17-8

13:30-17:20

2 stops39h 50m

S$ 1,466

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 13-5

11:05-15:40

1 stop40h 35m

Washington, D.C. Dulles Intl

Wed 6-8

12:50-06:15

2 stops29h 25m

S$ 1,489

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 13-5

01:10-11:15

1 stop22h 05m

Washington, D.C. Dulles Intl

Thu 7-8

13:30-23:40

1 stop22h 10m

S$ 1,514

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sat 17-5

23:30-15:15

1 stop27h 45m

Washington, D.C. Dulles Intl

Sat 24-5

20:45-21:55

2 stops37h 10m

S$ 1,592

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Mon 12-5

01:55-22:57

2 stops33h 02m

Washington, D.C. Dulles Intl

Wed 6-8

07:07-06:10

2 stops35h 03m

S$ 1,611

Flights are sorted by cheapest return flights first.

Deals found on 2-4

Showing 1-10 of 34 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 28 March 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 85 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, Korean Air and Qatar Airways.

United Airlines

United Airlines

From S$ 1,099

Korean Air

Korean Air

From S$ 1,368

Qatar Airways

Qatar Airways

From S$ 1,374

Turkish Airlines

Turkish Airlines

From S$ 966

What are the cheapest airlines that fly to Dulles Intl?

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

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 2 April 2025.
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Boarding

8.5

Food

8.1

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
1,051 reviews
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Boarding

8.5

Food

8.1

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.
Singapore Airlines
8.1
Very Good
1,288 reviews
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Boarding

8.5

Food

8.1

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
3,193 reviews
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Boarding

8.5

Food

8.1

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
7,897 reviews
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Boarding

8.5

Food

8.1

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.
SWISS
7.5
Good
1,574 reviews
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Boarding

8.5

Food

8.1

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$ 323, while return flights cost around S$ 2,426.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around S$ 1,905, however they can be found for as little as S$ 1,806.

  • 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.

Can Cheapflights notify me if prices for flights to Dulles Intl become cheaper?

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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