HK$4,057+ 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 27-4. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
15 Mei — 22 Mei1
1 adult
1 adult, Economy, 0 bags

Flights to Dulles Intl in 2026

Enter your travel dates to find the best prices.

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 15 April 2026.

Isnin 29-619:40
HKG
-
IAD
1 stop32h 00m
Qatar Airways
Khamis 6-821:00
IAD
-
HKG
1 stop30h 10m
Qatar Airways
Deal found 14-4HK$7,692
Isnin 11-501:25
HKG
-
IAD
1 stop28h 45m
Qatar Airways
Isnin 18-521:00
IAD
-
HKG
1 stop24h 10m
Qatar Airways
Deal found 13-4HK$7,700
Khamis 21-501:25
HKG
-
IAD
1 stop28h 45m
Qatar Airways
Jumaat 29-521:00
IAD
-
HKG
1 stop24h 10m
Qatar Airways
Deal found 14-4HK$7,708
Khamis 30-401:25
HKG
-
IAD
1 stop28h 45m
Qatar Airways
Khamis 14-521:00
IAD
-
HKG
1 stop31h 25m
Qatar Airways
Deal found 14-4HK$7,762
Sabtu 18-401:25
HKG
-
IAD
1 stop28h 45m
Qatar Airways
Rabu 22-421:00
IAD
-
HKG
1 stop31h 25m
Qatar Airways
Deal found 13-4HK$7,927
Selasa 27-1018:05
HKG
-
IAD
1 stop27h 15m
Qatar Airways
Jumaat 13-1110:40
IAD
-
HKG
1 stop22h 00m
Qatar Airways
Deal found 14-4HK$7,974
Sabtu 19-1218:05
HKG
-
IAD
1 stop34h 50m
Qatar Airways
Jumaat 1-120:05
IAD
-
HKG
1 stop29h 45m
Qatar Airways
Deal found 12-4HK$8,146
Sabtu 9-501:25
HKG
-
IAD
1 stop28h 45m
Qatar Airways
Ahad 17-521:00
IAD
-
HKG
1 stop31h 25m
Qatar Airways
Deal found 10-4HK$8,162
Selasa 26-501:25
HKG
-
IAD
1 stop28h 45m
Qatar Airways
Rabu 3-621:00
IAD
-
HKG
1 stop24h 10m
Qatar Airways
Deal found 12-4HK$8,185
Isnin 27-401:25
HKG
-
IAD
1 stop28h 45m
Qatar Airways
Khamis 6-821:00
IAD
-
HKG
1 stop30h 10m
Qatar Airways
Deal found 14-4HK$8,209
Khamis 28-501:25
HKG
-
IAD
1 stop28h 45m
Qatar Airways
Jumaat 5-621:00
IAD
-
HKG
1 stop31h 25m
Qatar Airways
Deal found 14-4HK$8,373
Ahad 17-518:15
HKG
-
IAD
1 stop35h 55m
Qatar Airways
Jumaat 22-521:00
IAD
-
HKG
1 stop24h 10m
Qatar Airways
Deal found 13-4HK$8,428

Find flight deals to Dulles Intl Airport

Find the latest flights to Dulles Intl in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 15 April 2026.

Return from

HK$7,692

One-way from

HK$4,057

Popular in

March

Cheapest in

December

Average price

HK$7,950
Qatar Airways
  • Qatar Airways
  • 29-6-6-8
  • 2 total stops
  • 62h 10m total
  • Hong Kong to Washington, D.C.
Search Deals
Air China
  • Air China
  • 27-4
  • 1 total stop
  • 42h 00m total
  • Hong Kong to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (HK$228 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (HK$186 potential savings vs. average return price).
Search Deals
Average for return flights in April 2026
Search Deals

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 70,647 searches and data was last updated on 15 April 2026.
Use the filters below to find and compare flights to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Route

Departure

Return

Price

Cheapest return flight

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Isnin 29-6

19:40-15:40

1 stop32h 00m

Washington, D.C. Dulles Intl

Khamis 6-8

21:00-15:10

1 stop30h 10m

HK$7,692
Fastest return journey

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Isnin 11-5

01:25-18:10

1 stop28h 45m

Washington, D.C. Dulles Intl

Isnin 18-5

21:00-09:10

1 stop24h 10m

HK$7,700

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Sabtu 9-5

01:25-18:10

1 stop28h 45m

Washington, D.C. Dulles Intl

Ahad 17-5

21:00-16:25

1 stop31h 25m

HK$8,162

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Selasa 26-5

01:25-18:10

1 stop28h 45m

Washington, D.C. Dulles Intl

Rabu 3-6

21:00-09:10

1 stop24h 10m

HK$8,185

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Isnin 27-4

01:25-18:10

1 stop28h 45m

Washington, D.C. Dulles Intl

Khamis 6-8

21:00-15:10

1 stop30h 10m

HK$8,209

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Jumaat 22-5

16:55-18:10

2 stops37h 15m

Washington, D.C. Dulles Intl

Jumaat 29-5

21:00-09:10

1 stop24h 10m

HK$8,655

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Selasa 7-7

01:25-15:40

1 stop26h 15m

Washington, D.C. Dulles Intl

Isnin 25-1

20:05-14:50

1 stop29h 45m

HK$8,820

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Jumaat 29-5

16:55-18:10

2 stops37h 15m

Washington, D.C. Dulles Intl

Jumaat 5-6

21:00-09:10

1 stop24h 10m

HK$9,517
Cheapest one-way

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Isnin 7-9

01:25-15:40

1 stop26h 15m

HK$5,084

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Isnin 7-9

19:40-15:40

1 stop32h 00m

HK$5,084

Flights are sorted by cheapest return flights first.

Deals found on 10-4

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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

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).

How long is the flight to Dulles Intl?

On average, a flight from Hong Kong to Dulles Intl takes 23 hours 35 minutes. Flights to Dulles Intl from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.

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 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 HK$1,396, while return flights cost around HK$2,868.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around HK$3,230, however they can be found for as little as HK$2,868.

  • 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

Travelling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Fairfax
Arlington
Herndon

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.

Search flights to Dulles Intl by cabin class

Find flights to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First class flights to Washington, D.C. Dulles Intl Airport
Business class flights to Washington, D.C. Dulles Intl Airport
Prem Economy class flights to Washington, D.C. Dulles Intl Airport
Economy class flights to Washington, D.C. Dulles Intl Airport

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Dulles Intl?

Cheapflights helps you search for flights to Dulles Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets to Dulles Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights to Dulles Intl for you. Better yet — we are completely free to use.

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

Yes, we can. To see specific flights to Dulles Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Not ready to book yet? You can track prices for flights to Dulles Intl on Cheapflights with our Price Alerts feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.