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HK$3,757+ 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 14-12. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Flights to Dulles Intl in 2025

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 15 September 2025.

Return from

HK$6,673

One-way from

HK$3,757

Popular in

August

Cheapest in

September

Average price

HK$7,646
United Airlines
  • United Airlines
  • 28-10-4-11
  • 3 total stops
  • 48h 23m total
  • Hong Kong to Washington, D.C.
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14-12
  • 14-12
  • 3 total stops
  • 54h 09m total
  • Hong Kong to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (HK$1,721 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (HK$589 potential savings vs. average return price).
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Average for return flights in September 2025
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Find flight deals to Dulles Intl Airport

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 15 September 2025.

Tue 28-1010:35HKG - IAD
2 stops22h 48mUnited Airlines
Tue 4-1116:10IAD - HKG
1 stop25h 35mUnited Airlines
Deal found 13-9HK$6,673
Thu 23-1011:15HKG - IAD
2 stops25h 06mUnited Airlines
Sat 15-1118:03IAD - HKG
1 stop23h 42mUnited Airlines
Deal found 14-9HK$6,681
Fri 24-1011:15HKG - IAD
2 stops23h 18mUnited Airlines
Sun 16-1118:59IAD - HKG
1 stop23h 01mUnited Airlines
Deal found 14-9HK$7,000
Tue 28-1010:30HKG - IAD
1 stop21h 00mAir China
Tue 4-1122:00IAD - HKG
1 stop24h 45mAir China
Deal found 13-9HK$7,086
Tue 28-1020:05HKG - IAD
2 stops22h 18mMultiple Airlines
Sun 16-1107:43IAD - HKG
2 stops36h 32mMultiple Airlines
Deal found 14-9HK$7,187
Sat 11-1010:30HKG - IAD
1 stop37h 15mTurkish Airlines
Sun 2-1121:10IAD - HKG
1 stop22h 10mTurkish Airlines
Deal found 14-9HK$7,210
Mon 20-1018:00HKG - IAD
2 stops39h 12mAir Canada
Wed 12-1112:42IAD - HKG
2 stops40h 58mAir Canada
Deal found 13-9HK$7,264
Wed 22-1018:00HKG - IAD
2 stops29h 13mAir Canada
Mon 17-1117:15IAD - HKG
2 stops36h 25mAir Canada
Deal found 13-9HK$7,311
Tue 21-1010:30HKG - IAD
1 stop21h 00mAir China
Tue 18-1122:00IAD - HKG
1 stop26h 05mAir China
Deal found 13-9HK$7,366
Mon 24-1113:00HKG - IAD
1 stop42h 30mAir China
Fri 28-1122:00IAD - HKG
1 stop33h 50mAir China
Deal found 14-9HK$7,381
Tue 28-1019:25HKG - IAD
2 stops32h 29mAir Canada
Tue 4-1116:25IAD - HKG
2 stops37h 15mAir Canada
Deal found 13-9HK$7,389
Sun 19-1018:00HKG - IAD
2 stops39h 12mAir Canada
Sun 9-1109:45IAD - HKG
2 stops43h 55mAir Canada
Deal found 14-9HK$7,420

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 15 September 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

Tue 28-10

10:35-21:23

2 stops22h 48m

Washington, D.C. Dulles Intl

Tue 4-11

16:10-06:45

1 stop25h 35m

HK$6,673

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 13-11

11:25-23:59

2 stops25h 34m

Washington, D.C. Dulles Intl

Sun 23-11

15:25-06:45

1 stop26h 20m

HK$6,673

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Mon 3-11

22:30-15:55

2 stops30h 25m

Washington, D.C. Dulles Intl

Mon 10-11

18:59-07:00

1 stop23h 01m

HK$6,681

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 27-11

22:30-11:49

2 stops26h 19m

Washington, D.C. Dulles Intl

Sun 30-11

06:30-06:45

1 stop35h 15m

HK$6,681

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 28-10

10:30-19:30

1 stop21h 00m

Washington, D.C. Dulles Intl

Tue 4-11

22:00-11:45

1 stop24h 45m

HK$7,086

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 13-11

20:05-06:23

2 stops23h 18m

Washington, D.C. Dulles Intl

Sun 23-11

18:34-09:15

2 stops25h 41m

HK$7,187

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 28-10

19:25-15:54

2 stops32h 29m

Washington, D.C. Dulles Intl

Tue 4-11

16:25-18:40

2 stops37h 15m

HK$7,389

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 28-10

13:30-06:23

2 stops28h 53m

Washington, D.C. Dulles Intl

Tue 4-11

18:13-10:10

2 stops26h 57m

HK$7,443

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Mon 3-11

18:05-15:55

1 stop34h 50m

Washington, D.C. Dulles Intl

Mon 10-11

20:05-21:40

1 stop36h 35m

HK$7,552

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Mon 27-10

00:25-16:55

1 stop28h 30m

Washington, D.C. Dulles Intl

Tue 4-11

20:05-21:40

1 stop36h 35m

HK$7,661

Flights are sorted by cheapest return flights first.

Deals found on 14-9

Showing 1-10 of 22 results
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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

What are the cheapest airlines that fly to Dulles Intl?

The cheapest airlines flying from Hong Kong to Dulles Intl are United Airlines and Korean Air.

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 15 September 2025.
Check out reviews from past customers who have flown Korean Air and 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.
Korean Air
8.4
Very Good
1,139 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Overall

8.4

Food

8.1

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very Good
1,139 reviews
Korean Air
8.4
Very Good
1,139 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Overall

8.4

Food

8.1

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
United Airlines
7.4
Good
8,929 reviews
Korean Air
8.4
Very Good
1,139 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Overall

8.4

Food

8.1

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

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$1,425, while return flights cost around HK$2,848.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around HK$412, however they can be found for as little as HK$366.

  • 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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