HK$4,099+ 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 25-5. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
2 May — 9 May1
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 2 April 2026.

Thu 9-418:15
HKG
-
IAD
1 stop33h 55m
Qatar Airways
Wed 22-411:00
IAD
-
HKG
1 stop24h 20m
Qatar Airways
Deal found 31-3HK$7,532
Fri 10-418:15
HKG
-
IAD
1 stop33h 55m
Qatar Airways
Mon 13-421:00
IAD
-
HKG
1 stop30h 10m
Qatar Airways
Deal found 30-3HK$7,650
Thu 24-911:45
HKG
-
IAD
2 stops23h 21m
United Airlines
Mon 28-914:36
IAD
-
HKG
1 stop40h 19m
United Airlines
Deal found 30-3HK$7,869
Thu 5-1118:05
HKG
-
IAD
1 stop27h 15m
Qatar Airways
Mon 9-1120:05
IAD
-
HKG
1 stop36h 35m
Qatar Airways
Deal found 1-4HK$7,892
Sun 10-513:30
HKG
-
IAD
1 stop33h 20m
AIR PREMIA
Fri 15-513:20
IAD
-
HKG
1 stop34h 40m
AIR PREMIA
Deal found 30-3HK$7,971
Sun 10-513:30
HKG
-
IAD
1 stop33h 20m
AIR PREMIA
Mon 25-513:20
IAD
-
HKG
1 stop34h 40m
AIR PREMIA
Deal found 30-3HK$8,034
Mon 11-518:15
HKG
-
IAD
1 stop26h 25m
Qatar Airways
Mon 25-520:20
IAD
-
HKG
1 stop32h 25m
Qatar Airways
Deal found 30-3HK$8,057
Thu 9-418:15
HKG
-
IAD
1 stop33h 55m
Multiple Airlines
Wed 22-420:20
IAD
-
HKG
1 stop32h 05m
Multiple Airlines
Deal found 1-4HK$8,135
Sun 10-513:30
HKG
-
IAD
1 stop33h 20m
AIR PREMIA
Wed 27-513:20
IAD
-
HKG
1 stop34h 40m
AIR PREMIA
Deal found 30-3HK$8,190
Mon 20-418:15
HKG
-
IAD
1 stop33h 50m
Qatar Airways
Fri 1-511:00
IAD
-
HKG
1 stop24h 20m
Qatar Airways
Deal found 28-3HK$8,198
Sun 19-400:55
HKG
-
IAD
1 stop27h 10m
Qatar Airways
Thu 30-420:20
IAD
-
HKG
1 stop39h 00m
Qatar Airways
Deal found 28-3HK$8,214

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 2 April 2026.

Return from

HK$7,650

One-way from

HK$4,099

Popular in

November

Cheapest in

December

Average price

HK$7,885
Qatar Airways
  • Qatar Airways
  • 22-4-30-4
  • 2 total stops
  • 59h 35m total
  • Hong Kong to Washington, D.C.
Search Deals
Air China
  • Air China
  • 25-5
  • 1 total stop
  • 37h 45m total
  • Hong Kong to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (HK$93 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (HK$174 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 2 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

Mon 20-4

00:55-16:05

1 stop27h 10m

Washington, D.C. Dulles Intl

Fri 1-5

11:00-23:20

1 stop24h 20m

HK$8,371

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 21-4

00:55-16:05

1 stop27h 10m

Washington, D.C. Dulles Intl

Wed 29-4

11:00-23:20

1 stop24h 20m

HK$8,371

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 16-4

00:55-16:05

1 stop27h 10m

Washington, D.C. Dulles Intl

Mon 4-5

11:00-23:20

1 stop24h 20m

HK$8,371

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 14-5

18:15-16:05

1 stop33h 50m

Washington, D.C. Dulles Intl

Tue 2-6

11:00-23:20

1 stop24h 20m

HK$8,582
Fastest return journey

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 21-4

18:15-08:40

1 stop26h 25m

Washington, D.C. Dulles Intl

Sat 2-5

11:00-23:20

1 stop24h 20m

HK$8,606

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 24-9

11:45-23:06

2 stops23h 21m

Washington, D.C. Dulles Intl

Mon 28-9

14:36-18:55

1 stop40h 19m

HK$8,653

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Wed 23-9

01:25-15:40

1 stop26h 15m

Washington, D.C. Dulles Intl

Mon 28-9

21:00-21:55

1 stop36h 55m

HK$8,739

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 14-5

18:15-16:05

1 stop33h 50m

Washington, D.C. Dulles Intl

Sun 24-5

11:00-23:20

1 stop24h 20m

HK$8,817

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Fri 28-8

19:40-15:40

1 stop32h 00m

Washington, D.C. Dulles Intl

Fri 4-9

11:05-21:55

1 stop22h 50m

HK$8,825

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Wed 20-5

18:15-08:40

1 stop26h 25m

Washington, D.C. Dulles Intl

Sat 30-5

20:20-23:20

1 stop39h 00m

HK$8,841

Flights are sorted by cheapest return flights first.

Deals found on 1-4

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 23 hours 21 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$1,397, while return flights cost around HK$2,870.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around HK$3,232, however they can be found for as little as HK$2,870.

  • 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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