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HK$3,953+ 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 22-1. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
19 Jan — 26 Jan1
1 adult
1 adult, Economy, 0 bags

Flights to Dulles Intl in 2025

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 20 December 2025.

Wed 24-1210:35HKG - IAD
2 stops25h 31mUnited Airlines
Thu 15-118:00IAD - HKG
1 stop24h 00mUnited Airlines
Deal found 17-12HK$6,886
Tue 23-1211:25HKG - IAD
2 stops24h 41mUnited Airlines
Sat 3-106:10IAD - HKG
1 stop35h 50mUnited Airlines
Deal found 18-12HK$7,182
Tue 23-1211:25HKG - IAD
2 stops24h 41mUnited Airlines
Fri 2-122:05IAD - HKG
1 stop43h 55mUnited Airlines
Deal found 18-12HK$7,960
Tue 23-1200:25HKG - IAD
1 stop28h 30mQatar Airways
Thu 15-120:05IAD - HKG
1 stop36h 35mQatar Airways
Deal found 17-12HK$8,030
Mon 22-1200:05HKG - IAD
2 stops34h 16mANA
Sat 3-108:15IAD - HKG
2 stops32h 30mANA
Deal found 18-12HK$9,508
Sun 21-1216:30HKG - IAD
1 stop19h 35mCathay Pacific
Sun 28-1206:05IAD - HKG
1 stop34h 30mCathay Pacific
Deal found 18-12HK$9,882
Mon 22-1216:30HKG - IAD
1 stop19h 03mCathay Pacific
Sun 28-1218:07IAD - HKG
1 stop22h 28mCathay Pacific
Deal found 18-12HK$10,014
Sun 21-1211:25HKG - IAD
1 stop21h 15mUnited Airlines
Sun 28-1222:33IAD - HKG
2 stops31h 42mUnited Airlines
Deal found 18-12HK$10,240
Wed 24-1209:45HKG - IAD
2 stops46h 35mMultiple Airlines
Thu 15-114:35IAD - HKG
3 stops33h 55mMultiple Airlines
Deal found 17-12HK$10,325

Find flight deals to Dulles Intl Airport

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 70,647 searches and data was last updated on 20 December 2025.

Return from

HK$6,746

One-way from

HK$3,953

Popular in

November

Cheapest in

December

Average price

HK$7,283
2-2-9-2
  • 2-2-9-2
  • 4 total stops
  • 63h 17m total
  • Hong Kong to Washington, D.C.
Search Deals
Air China
  • Air China
  • 22-1
  • 1 total stop
  • 35h 15m total
  • Hong Kong to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (HK$142 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (HK$177 potential savings vs. average return price).
Search Deals
Average for return flights in December 2025
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 20 December 2025.
Use the filters below to find and compare flights to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Mon 2-2

20:05-16:26

2 stops33h 21m

Washington, D.C. Dulles Intl

Mon 9-2

18:04-13:00

2 stops29h 56m

HK$6,746

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Wed 28-1

10:35-21:13

2 stops23h 38m

Washington, D.C. Dulles Intl

Sun 1-2

22:05-19:15

1 stop32h 10m

HK$6,878

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 19-3

11:25-23:19

2 stops23h 54m

Washington, D.C. Dulles Intl

Sun 29-3

22:10-18:55

1 stop32h 45m

HK$6,886

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 20-1

10:35-21:13

2 stops23h 38m

Washington, D.C. Dulles Intl

Tue 3-2

08:25-06:45

1 stop33h 20m

HK$6,987

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Sun 1-2

10:35-21:13

2 stops23h 38m

Washington, D.C. Dulles Intl

Sun 8-2

21:30-19:20

1 stop32h 50m

HK$7,182

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Fri 6-3

11:25-21:05

2 stops22h 40m

Washington, D.C. Dulles Intl

Mon 9-3

19:32-07:00

1 stop23h 28m

HK$7,182

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Sat 31-1

00:55-09:50

1 stop21h 55m

Washington, D.C. Dulles Intl

Sun 8-2

11:50-23:10

1 stop22h 20m

HK$7,190

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Wed 3-6

12:20-00:09

2 stops23h 49m

Washington, D.C. Dulles Intl

Thu 30-7

09:30-05:00

2 stops31h 30m

HK$7,299

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 27-1

00:55-09:50

1 stop21h 55m

Washington, D.C. Dulles Intl

Sun 1-2

11:50-11:20

1 stop34h 30m

HK$7,314

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 5-3

00:55-09:50

1 stop21h 55m

Washington, D.C. Dulles Intl

Mon 9-3

12:50-23:10

1 stop22h 20m

HK$7,322

Flights are sorted by cheapest return flights first.

Deals found on 16-12

Showing 1-10 of 20 results
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

What are the cheapest airlines that fly to Dulles Intl?

The cheapest airline flying from Hong Kong to Dulles Intl is United Airlines.

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 20 December 2025.
Check out reviews from past customers who have flown United Airlines to the United States to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,097 reviews
Check prices

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,097 reviews
United Airlines
7.4
Good
9,097 reviews
Check prices

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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, United Airlines 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 HK$2,019, while return flights cost around HK$2,426.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around HK$5,412, however they can be found for as little as HK$2,426.

  • 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
Silver Spring

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