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S$ 660+ 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 1-7. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
18 May — 25 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 13 May 2025.

Return from

S$ 1,371

One-way from

S$ 660

Popular in

July

Cheapest in

August

Average price

S$ 1,619
Air India
  • Air India
  • 20-6-27-8
  • 2 total stops
  • 45h 55m total
  • Singapore to Washington, D.C.
IndiGo
  • IndiGo
  • 1-7
  • 2 total stops
  • 36h 00m total
  • Singapore to Washington, D.C.
Highest demand for flights based on searches. 1% potential increase in price (S$ 27 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (S$ 45 potential savings vs. average return price).
Average for return flights in May 2025

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 13 May 2025.

Fri 20-620:30SIN - IAD
1 stop23h 10mAir India
Wed 27-811:00IAD - SIN
1 stop22h 45mAir India
Deal found 12-5S$ 1,371
Sun 5-1010:15SIN - IAD
1 stop45h 30mTurkish Airlines
Sat 18-1021:40IAD - SIN
1 stop32h 15mTurkish Airlines
Deal found 12-5S$ 1,397
Sun 5-1009:10SIN - IAD
2 stops36h 28mAir Canada
Sun 19-1017:22IAD - SIN
2 stops49h 18mAir Canada
Deal found 12-5S$ 1,414
Sun 5-1015:10SIN - IAD
2 stops28h 23mMultiple Airlines
Sat 18-1009:00IAD - SIN
2 stops40h 50mMultiple Airlines
Deal found 12-5S$ 1,417
Sun 22-619:45SIN - IAD
2 stops36h 00mIndiGo
Mon 30-613:30IAD - SIN
2 stops39h 50mIndiGo
Deal found 12-5S$ 1,477
Sun 27-720:40SIN - IAD
2 stops27h 15mUnited Airlines
Sun 3-812:20IAD - SIN
1 stop30h 20mUnited Airlines
Deal found 12-5S$ 1,490
Wed 28-523:30SIN - IAD
1 stop27h 55mSWISS
Tue 10-620:45IAD - SIN
1 stop32h 20mSWISS
Deal found 13-5S$ 1,593
Tue 27-523:25SIN - IAD
1 stop27h 55mLufthansa
Sun 22-622:20IAD - SIN
1 stop30h 20mLufthansa
Deal found 12-5S$ 1,606
Fri 23-508:05SIN - IAD
2 stops35h 31mJapan Airlines
Thu 3-706:30IAD - SIN
2 stops29h 50mJapan Airlines
Deal found 12-5S$ 1,752
Thu 29-510:30SIN - IAD
1 stop41h 10mQatar Airways
Thu 19-611:00IAD - SIN
1 stop22h 00mQatar Airways
Deal found 12-5S$ 1,798
Mon 9-622:40SIN - IAD
1 stop30h 55mBritish Airways
Mon 16-622:40IAD - SIN
1 stop31h 20mBritish Airways
Deal found 12-5S$ 1,839
Mon 26-522:50SIN - IAD
2 stops42h 47mAsiana Airlines
Sat 21-617:45IAD - SIN
2 stops63h 45mAsiana Airlines
Deal found 12-5S$ 1,852

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 13 May 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

Fri 20-6

20:30-07:40

1 stop23h 10m

Washington, D.C. Dulles Intl

Wed 27-8

11:00-21:45

1 stop22h 45m

S$ 1,371

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 5-10

10:15-19:45

1 stop45h 30m

Washington, D.C. Dulles Intl

Sat 18-10

21:40-17:55

1 stop32h 15m

S$ 1,397

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 5-10

09:10-09:38

2 stops36h 28m

Washington, D.C. Dulles Intl

Sun 19-10

17:22-06:40

2 stops49h 18m

S$ 1,414

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 5-10

15:10-07:33

2 stops28h 23m

Washington, D.C. Dulles Intl

Sat 18-10

09:00-13:50

2 stops40h 50m

S$ 1,417

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 22-6

19:45-19:45

2 stops36h 00m

Washington, D.C. Dulles Intl

Mon 30-6

13:30-17:20

2 stops39h 50m

S$ 1,477

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Sun 27-7

20:40-11:55

2 stops27h 15m

Washington, D.C. Dulles Intl

Sun 3-8

12:20-06:40

1 stop30h 20m

S$ 1,490

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Wed 28-5

23:30-15:25

1 stop27h 55m

Washington, D.C. Dulles Intl

Tue 10-6

20:45-17:05

1 stop32h 20m

S$ 1,593

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Tue 27-5

23:25-15:20

1 stop27h 55m

Washington, D.C. Dulles Intl

Sun 22-6

22:20-16:40

1 stop30h 20m

S$ 1,606

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Fri 23-5

08:05-07:36

2 stops35h 31m

Washington, D.C. Dulles Intl

Thu 3-7

06:30-00:20

2 stops29h 50m

S$ 1,752

SingaporeWashington, D.C.

SIN - IAD

SINIAD

Singapore Changi

Thu 29-5

10:30-15:40

1 stop41h 10m

Washington, D.C. Dulles Intl

Thu 19-6

11:00-21:00

1 stop22h 00m

S$ 1,798

Flights are sorted by cheapest return flights first.

Deals found on 12-5

Showing 1-10 of 37 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 9 May 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 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 13 May 2025.
Peruse reviews from past customers who have flown EVA Air, Korean Air and Japan Airlines 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.

Entertainment

8.0

Boarding

8.4

Overall

8.4

Food

8.1

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

Entertainment

8.0

Boarding

8.4

Overall

8.4

Food

8.1

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

Entertainment

8.0

Boarding

8.4

Overall

8.4

Food

8.1

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

Entertainment

8.0

Boarding

8.4

Overall

8.4

Food

8.1

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

Entertainment

8.0

Boarding

8.4

Overall

8.4

Food

8.1

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

Entertainment

8.0

Boarding

8.4

Overall

8.4

Food

8.1

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

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$ 314, 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.

Can Cheapflights find flights to Dulles Intl with no change fees?

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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