HK$4,004+ 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 18-6. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
11 Jul — 18 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 11 June 2026.

Mon 6-717:45
HKG
-
IAD
1 stop37h 45m
Air China
Tue 21-723:00
IAD
-
HKG
1 stop34h 05m
Air China
Deal found 9-6HK$7,288
Fri 11-910:30
HKG
-
IAD
1 stop21h 00m
Air China
Tue 15-923:00
IAD
-
HKG
1 stop32h 00m
Air China
Deal found 10-6HK$7,484
Sun 1-1100:25
HKG
-
IAD
1 stop28h 30m
Qatar Airways
Sun 8-1110:40
IAD
-
HKG
1 stop22h 00m
Qatar Airways
Deal found 10-6HK$7,993
Thu 18-619:40
HKG
-
IAD
1 stop32h 00m
Qatar Airways
Sat 4-721:00
IAD
-
HKG
1 stop36h 55m
Qatar Airways
Deal found 7-6HK$8,033
Wed 16-919:40
HKG
-
IAD
1 stop32h 00m
Qatar Airways
Sun 20-911:05
IAD
-
HKG
1 stop22h 50m
Qatar Airways
Deal found 8-6HK$8,197
Thu 3-921:45
HKG
-
IAD
2 stops25h 41m
United Airlines
Sat 19-908:30
IAD
-
HKG
1 stop22h 25m
United Airlines
Deal found 9-6HK$8,260
Thu 19-1118:05
HKG
-
IAD
1 stop34h 50m
Qatar Airways
Fri 27-1110:40
IAD
-
HKG
1 stop22h 00m
Qatar Airways
Deal found 7-6HK$8,283
Mon 2-1120:05
HKG
-
IAD
2 stops22h 46m
China Airlines
Thu 26-1117:38
IAD
-
HKG
2 stops27h 32m
China Airlines
Deal found 8-6HK$8,330
Tue 16-601:25
HKG
-
IAD
1 stop26h 15m
Qatar Airways
Wed 15-721:00
IAD
-
HKG
1 stop36h 55m
Qatar Airways
Deal found 8-6HK$8,354
Thu 19-1111:25
HKG
-
IAD
2 stops22h 40m
United Airlines
Mon 23-1108:25
IAD
-
HKG
1 stop33h 20m
United Airlines
Deal found 7-6HK$8,369
Sun 1-1100:25
HKG
-
IAD
1 stop28h 30m
Qatar Airways
Thu 26-1120:05
IAD
-
HKG
1 stop36h 35m
Qatar Airways
Deal found 8-6HK$8,401

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 11 June 2026.

Return from

HK$7,288

One-way from

HK$4,004

Popular in

November

Cheapest in

December

Average price

HK$9,913
Air China
  • Air China
  • 6-7-21-7
  • 2 total stops
  • 71h 50m total
  • Hong Kong to Washington, D.C.
Search Deals
Air China
  • Air China
  • 18-6
  • 1 total stop
  • 40h 55m total
  • Hong Kong to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 4% potential increase in price.
Search Deals
Cheapest flight prices on average. 2% potential price decrease (HK$182 potential savings vs. average return price).
Search Deals
Average for return flights in June 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 11 June 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

Fri 11-9

21:45-11:26

2 stops25h 41m

Washington, D.C. Dulles Intl

Tue 15-9

17:48-05:00

1 stop23h 12m

HK$8,260

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Mon 2-11

11:25-23:00

2 stops24h 35m

Washington, D.C. Dulles Intl

Sun 8-11

06:30-19:15

1 stop23h 45m

HK$8,260
Fastest return journey

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Fri 4-9

22:30-09:28

2 stops22h 58m

Washington, D.C. Dulles Intl

Fri 18-9

18:35-05:00

1 stop22h 25m

HK$8,369

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Wed 2-9

01:25-15:40

1 stop26h 15m

Washington, D.C. Dulles Intl

Thu 22-10

21:00-21:55

1 stop36h 55m

HK$8,832

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 1-9

01:25-15:40

1 stop26h 15m

Washington, D.C. Dulles Intl

Thu 22-10

21:00-21:55

1 stop36h 55m

HK$9,137

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Wed 30-9

01:25-15:40

1 stop26h 15m

Washington, D.C. Dulles Intl

Fri 25-12

10:40-21:40

1 stop22h 00m

HK$9,427

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 8-9

09:25-00:10

2 stops26h 45m

Washington, D.C. Dulles Intl

Sun 18-10

07:00-05:05

2 stops34h 05m

HK$9,796

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Sat 5-9

09:25-19:59

2 stops22h 34m

Washington, D.C. Dulles Intl

Thu 22-10

13:00-05:05

2 stops28h 05m

HK$9,796

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Mon 5-10

15:35-15:40

2 stops36h 05m

Washington, D.C. Dulles Intl

Fri 25-12

10:40-21:40

1 stop22h 00m

HK$9,898

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Sat 3-10

08:45-15:40

2 stops42h 55m

Washington, D.C. Dulles Intl

Fri 25-12

10:40-21:40

1 stop22h 00m

HK$10,141

Flights are sorted by cheapest return flights first.

Deals found on 9-6

Showing 1-10 of 23 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 21 hours 53 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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