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HK$3,813+ 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 29-1. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
1 Feb — 8 Feb1
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 January 2026.

Sat 31-110:35HKG - IAD
2 stops23h 47mUnited Airlines
Sat 7-212:35IAD - HKG
1 stop29h 25mUnited Airlines
Deal found 2-1HK$6,669
Tue 10-311:25HKG - IAD
2 stops23h 54mUnited Airlines
Tue 17-319:32IAD - HKG
1 stop23h 28mUnited Airlines
Deal found 2-1HK$6,771
Wed 1-421:45HKG - IAD
2 stops26h 03mUnited Airlines
Sun 5-422:10IAD - HKG
1 stop32h 45mUnited Airlines
Deal found 1-1HK$6,778
Fri 23-111:25HKG - IAD
2 stops22h 52mUnited Airlines
Fri 13-222:05IAD - HKG
1 stop32h 10mUnited Airlines
Deal found 1-1HK$6,887
Tue 10-310:30HKG - IAD
1 stop21h 00mAir China
Tue 24-323:00IAD - HKG
1 stop24h 40mAir China
Deal found 1-1HK$7,012
Sat 31-110:35HKG - IAD
2 stops23h 42mMultiple Airlines
Sat 7-216:11IAD - HKG
2 stops25h 34mMultiple Airlines
Deal found 2-1HK$7,074
Tue 10-308:30HKG - IAD
1 stop23h 00mAir China
Tue 17-323:00IAD - HKG
1 stop32h 00mAir China
Deal found 2-1HK$7,160
Wed 17-609:30HKG - IAD
2 stops24h 07mUnited Airlines
Wed 15-706:00IAD - HKG
2 stops24h 55mUnited Airlines
Deal found 1-1HK$7,471
Fri 23-118:05HKG - IAD
1 stop34h 50mQatar Airways
Fri 13-210:40IAD - HKG
1 stop22h 00mQatar Airways
Deal found 1-1HK$7,588
Thu 5-200:25HKG - IAD
1 stop28h 30mQatar Airways
Fri 20-210:40IAD - HKG
1 stop22h 00mQatar Airways
Deal found 30-12HK$7,728

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 January 2026.

Return from

HK$6,669

One-way from

HK$3,813

Popular in

November

Cheapest in

December

Average price

HK$8,125
United Airlines
  • United Airlines
  • 31-1-7-2
  • 3 total stops
  • 53h 12m total
  • Hong Kong to Washington, D.C.
Search Deals
29-1
  • 29-1
  • 3 total stops
  • 57h 44m total
  • Hong Kong to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (HK$138 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 January 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 January 2026.
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

Fri 6-2

11:25-21:13

2 stops22h 48m

Washington, D.C. Dulles Intl

Fri 20-2

22:05-19:15

1 stop32h 10m

HK$6,669

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 10-3

11:25-23:19

2 stops23h 54m

Washington, D.C. Dulles Intl

Tue 24-3

18:00-07:00

1 stop25h 00m

HK$6,669

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Sat 31-1

11:25-23:13

2 stops24h 48m

Washington, D.C. Dulles Intl

Sat 7-2

08:25-07:00

1 stop33h 35m

HK$6,771

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Wed 1-4

12:40-00:15

2 stops23h 35m

Washington, D.C. Dulles Intl

Sun 5-4

20:53-18:30

1 stop33h 37m

HK$6,771

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 10-3

11:25-23:19

2 stops23h 54m

Washington, D.C. Dulles Intl

Tue 17-3

18:00-07:00

1 stop25h 00m

HK$6,771

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 10-3

10:30-19:30

1 stop21h 00m

Washington, D.C. Dulles Intl

Tue 24-3

23:00-13:05

1 stop26h 05m

HK$7,160

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Wed 17-6

09:30-21:37

2 stops24h 07m

Washington, D.C. Dulles Intl

Wed 15-7

06:00-18:55

2 stops24h 55m

HK$7,471

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 5-2

00:25-15:55

1 stop28h 30m

Washington, D.C. Dulles Intl

Fri 20-2

10:40-21:40

1 stop22h 00m

HK$7,728

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 31-3

01:25-15:40

1 stop26h 15m

Washington, D.C. Dulles Intl

Sun 5-4

11:05-21:55

1 stop22h 50m

HK$8,094

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 22-1

14:55-10:44

3 stops56h 49m

HK$3,953

Flights are sorted by cheapest return flights first.

Deals found on 30-12

Showing 1-10 of 17 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 2 January 2026.
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
9,132 reviews
Check prices

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

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
9,132 reviews
United Airlines
7.4
Good
9,132 reviews
Check prices

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

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$1,387, while return flights cost around HK$2,427.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around HK$7,239, however they can be found for as little as HK$2,427.

  • 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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