HK$4,012+ 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 8-6. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
30 Jun — 7 Jul1
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 31 May 2026.

Wed 17-601:25
HKG
-
IAD
1 stop26h 15m
Qatar Airways
Sat 4-721:00
IAD
-
HKG
1 stop36h 55m
Qatar Airways
Deal found 28-5HK$8,173
Mon 22-601:25
HKG
-
IAD
1 stop26h 15m
Qatar Airways
Tue 30-621:00
IAD
-
HKG
1 stop36h 55m
Qatar Airways
Deal found 26-5HK$8,252
Mon 15-621:45
HKG
-
IAD
2 stops25h 43m
United Airlines
Tue 7-722:21
IAD
-
HKG
1 stop42h 39m
United Airlines
Deal found 29-5HK$8,260
Mon 15-613:30
HKG
-
IAD
1 stop42h 00m
Air China
Tue 7-723:00
IAD
-
HKG
1 stop24h 50m
Air China
Deal found 29-5HK$8,322
Fri 19-601:25
HKG
-
IAD
1 stop26h 15m
Multiple Airlines
Sat 4-721:00
IAD
-
HKG
1 stop36h 55m
Multiple Airlines
Deal found 29-5HK$8,338
Tue 9-601:25
HKG
-
IAD
1 stop27h 15m
Qatar Airways
Sat 18-721:00
IAD
-
HKG
1 stop36h 55m
Qatar Airways
Deal found 27-5HK$8,369
Sun 19-719:40
HKG
-
IAD
1 stop32h 00m
Qatar Airways
Tue 25-811:05
IAD
-
HKG
1 stop22h 50m
Qatar Airways
Deal found 30-5HK$8,377
Thu 28-518:15
HKG
-
IAD
1 stop34h 25m
Qatar Airways
Wed 1-721:00
IAD
-
HKG
1 stop36h 55m
Qatar Airways
Deal found 26-5HK$8,510
Sat 18-701:25
HKG
-
IAD
1 stop26h 15m
Qatar Airways
Wed 22-721:00
IAD
-
HKG
1 stop36h 55m
Qatar Airways
Deal found 27-5HK$8,518
Sun 19-701:25
HKG
-
IAD
1 stop43h 20m
Qatar Airways
Wed 22-721:00
IAD
-
HKG
1 stop36h 55m
Qatar Airways
Deal found 26-5HK$8,542
Wed 9-1200:25
HKG
-
IAD
1 stop28h 30m
Qatar Airways
Sun 3-110:40
IAD
-
HKG
1 stop22h 00m
Qatar Airways
Deal found 28-5HK$8,628

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 31 May 2026.

Return from

HK$8,173

One-way from

HK$4,012

Popular in

November

Cheapest in

December

Average price

HK$8,510
Qatar Airways
  • Qatar Airways
  • 17-6-4-7
  • 2 total stops
  • 63h 10m total
  • Hong Kong to Washington, D.C.
Search Deals
Air China
  • Air China
  • 4-6
  • 1 total stop
  • 42h 00m total
  • Hong Kong to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price.
Search Deals
Cheapest flight prices on average. 2% potential price decrease (HK$207 potential savings vs. average return price).
Search Deals
Average for return flights in May 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 31 May 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

Sun 19-7

01:25-08:45

1 stop43h 20m

Washington, D.C. Dulles Intl

Wed 22-7

21:00-21:55

1 stop36h 55m

HK$8,542

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Sun 19-7

01:25-15:40

1 stop26h 15m

Washington, D.C. Dulles Intl

Mon 24-8

21:00-15:10

1 stop30h 10m

HK$8,949

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 14-7

01:25-15:40

1 stop26h 15m

Washington, D.C. Dulles Intl

Sat 22-8

21:00-15:10

1 stop30h 10m

HK$9,584

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Wed 15-7

01:25-15:40

1 stop26h 15m

Washington, D.C. Dulles Intl

Thu 30-7

21:00-21:55

1 stop36h 55m

HK$9,631

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 18-6

12:20-00:25

2 stops24h 05m

Washington, D.C. Dulles Intl

Sat 4-7

11:17-05:05

2 stops29h 48m

HK$9,780
Fastest return journey

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 16-7

12:40-05:27

2 stops28h 47m

Washington, D.C. Dulles Intl

Thu 30-7

06:10-18:55

2 stops24h 45m

HK$10,132

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 23-6

19:40-15:40

1 stop32h 00m

Washington, D.C. Dulles Intl

Tue 30-6

21:00-15:05

2 stops30h 05m

HK$10,297

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Sat 20-6

09:25-00:44

2 stops27h 19m

Washington, D.C. Dulles Intl

Sat 4-7

12:47-05:05

2 stops28h 18m

HK$10,587

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Sun 19-7

09:25-00:41

2 stops27h 16m

Washington, D.C. Dulles Intl

Wed 22-7

12:37-05:05

2 stops28h 28m

HK$11,472

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Mon 20-7

09:25-23:29

2 stops26h 04m

Washington, D.C. Dulles Intl

Wed 22-7

08:27-05:05

2 stops32h 38m

HK$11,472

Flights are sorted by cheapest return flights first.

Deals found on 26-5

Showing 1-10 of 21 resultsSorted by cheapest first
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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

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 25 hours 5 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$377.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around HK$2,953, however they can be found for as little as HK$377.

  • 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

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