How long is the flight from Hong Kong to Washington, D.C. Dulles Intl Airport?

A quick flight from Hong Kong to Washington, D.C. Dulles Intl Airport can take about 22h 58m. United Airlines provides one of the quickest options available for as low as $858. Hong Kong and Washington, D.C. Dulles Intl Airport are separated by a distance of 8135 mi.

What is the cheapest day to fly from Hong Kong to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Hong Kong to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday evenings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What is the cheapest time of day to fly from HK to IAD?

When flying from Hong Kong to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 9% versus a flight in the afternoon.

Can I find deals for flights from Hong Kong to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Hong Kong to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Hong Kong to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hong Kong to Dulles Intl.

Can I find deals for business class flights from Hong Kong to Dulles Intl?

Yes. Cheapflights offers flight deals from Hong Kong to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$450+ Flights from Hong Kong to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Hong Kong to Dulles Intl

Round-trip from	$858 (United Airlines)
One-way from	$450 (Booking.com)
Popular in	May
Cheapest in	April
Average price	$970

From Hong Kong to Washington, D.C. Dulles Intl

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One-way flight from Hong Kong to Washington, D.C. Dulles Intl

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Highest demand for flights based on searches. 2% potential increase in price ($23 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($21 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Hong Kong to Dulles Intl

Cheapest flights from Hong Kong to Dulles Intl
Explore the most affordable flight options available from Hong Kong to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

Fri 10/1710:30 pmHKG - IAD

2 stops25h 25mUnited Airlines

Fri 11/76:30 amIAD - HKG

1 stop23h 50mUnited Airlines

Deal found 9/17

$858

Tue 11/2510:35 amHKG - IAD

2 stops26h 24mUnited Airlines

Sun 11/306:24 amIAD - HKG

1 stop23h 51mUnited Airlines

Deal found 9/16

$859

Mon 11/311:25 amHKG - IAD

2 stops25h 34mUnited Airlines

Sun 11/166:30 amIAD - HKG

1 stop23h 50mUnited Airlines

Deal found 9/16

$861

Mon 10/206:55 pmHKG - IAD

2 stops29h 00mUnited Airlines

Thu 10/304:10 pmIAD - HKG

1 stop25h 35mUnited Airlines

Deal found 9/15

$871

Tue 11/2511:25 amHKG - IAD

2 stops24h 33mUnited Airlines

Sat 11/2912:35 pmIAD - HKG

1 stop29h 25mUnited Airlines

Deal found 9/15

$900

Fri 10/176:20 pmHKG - IAD

2 stops25h 13mMultiple Airlines

Fri 11/77:43 amIAD - HKG

2 stops37h 32mMultiple Airlines

Deal found 9/17

$908

Fri 10/318:30 amHKG - IAD

1 stop23h 00mAir China

Fri 11/710:00 pmIAD - HKG

1 stop24h 45mAir China

Deal found 9/16

$912

Tue 11/2511:20 pmHKG - IAD

1 stop25h 25mTurkish Airlines

Sun 11/301:30 pmIAD - HKG

1 stop29h 50mTurkish Airlines

Deal found 9/17

$923

Mon 11/38:05 pmHKG - IAD

2 stops23h 18mMultiple Airlines

Mon 11/107:43 amIAD - HKG

2 stops36h 32mMultiple Airlines

Deal found 9/15

$924

Sun 11/210:00 amHKG - IAD

1 stop38h 45mTurkish Airlines

Wed 11/121:30 pmIAD - HKG

1 stop38h 35mTurkish Airlines

Deal found 9/16

$930

Best flights from Hong Kong to Dulles Intl
Discover carefully curated flight deals from Hong Kong to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2025.

Mon 11/311:25 amHKG - IAD

2 stops22h 58mUnited Airlines

Mon 11/106:03 pmIAD - HKG

1 stop23h 42mUnited Airlines

Deal found 9/16

$858

Sun 11/211:25 amHKG - IAD

2 stops22h 58mUnited Airlines

Mon 11/1010:08 pmIAD - HKG

1 stop32h 07mUnited Airlines

Deal found 9/16

$858

Fri 10/1710:30 pmHKG - IAD

2 stops25h 25mUnited Airlines

Fri 11/76:30 amIAD - HKG

1 stop23h 50mUnited Airlines

Deal found 9/17

$858

Sat 11/110:45 pmHKG - IAD

2 stops26h 04mUnited Airlines

Sat 11/88:30 amIAD - HKG

1 stop33h 15mUnited Airlines

Deal found 9/17

$858

Thu 10/99:15 amHKG - IAD

2 stops23h 40mUnited Airlines

Mon 10/137:22 pmIAD - HKG

1 stop33h 23mUnited Airlines

Deal found 9/16

$859

Tue 11/2510:35 amHKG - IAD

2 stops26h 24mUnited Airlines

Sun 11/3010:31 pmIAD - HKG

1 stop31h 49mUnited Airlines

Deal found 9/15

$859

Thu 11/2710:30 pmHKG - IAD

2 stops26h 19mUnited Airlines

Sun 11/306:30 amIAD - HKG

1 stop35h 15mUnited Airlines

Deal found 9/14

$859

Fri 10/3110:30 pmHKG - IAD

2 stops25h 17mUnited Airlines

Fri 11/76:59 pmIAD - HKG

1 stop23h 01mUnited Airlines

Deal found 9/16

$859

Mon 11/311:25 amHKG - IAD

2 stops25h 34mUnited Airlines

Sun 11/166:59 pmIAD - HKG

1 stop23h 01mUnited Airlines

Deal found 9/17

$864

Last-minute flights from Hong Kong to Dulles Intl
Discover last-minute flight deals from Hong Kong to Dulles Intl. Data last updated September 17, 2025 and is based on user searches.

Fri 9/2610:30 pmHKG - IAD

2 stops25h 18mUnited Airlines

Sat 10/1110:14 pmIAD - HKG

1 stop30h 31mUnited Airlines

Deal found 9/16

$859

Thu 10/161:25 amHKG - IAD

1 stop26h 15mQatar Airways

Fri 11/710:40 amIAD - HKG

1 stop22h 00mQatar Airways

Deal found 9/17

$969

Fri 10/1710:30 pmHKG - IAD

2 stops25h 25mUnited Airlines

Fri 11/76:30 amIAD - HKG

1 stop23h 50mUnited Airlines

Deal found 9/17

$858

Fri 10/176:20 pmHKG - IAD

2 stops25h 13mMultiple Airlines

Fri 11/77:43 amIAD - HKG

2 stops37h 32mMultiple Airlines

Deal found 9/17

$908

Sun 10/191:25 amHKG - IAD

1 stop26h 15mQatar Airways

Thu 10/309:05 pmIAD - HKG

1 stop36h 35mQatar Airways

Deal found 9/15

$971

Sun 10/191:25 amHKG - IAD

1 stop26h 15mQatar Airways

Mon 11/108:05 pmIAD - HKG

1 stop36h 35mQatar Airways

Deal found 9/17

$972

Mon 10/206:55 pmHKG - IAD

2 stops29h 00mUnited Airlines

Thu 10/304:10 pmIAD - HKG

1 stop25h 35mUnited Airlines

Deal found 9/15

$871

Mon 10/208:10 pmHKG - IAD

2 stops23h 23mChina Airlines

Thu 10/307:43 amIAD - HKG

2 stops38h 27mChina Airlines

Deal found 9/15

$943

Mon 10/206:00 pmHKG - IAD

2 stops39h 05mAir Canada

Mon 11/104:25 pmIAD - HKG

2 stops37h 15mAir Canada

Deal found 9/17

$957

Thu 10/3012:25 amHKG - IAD

1 stop28h 30mQatar Airways

Fri 11/710:40 amIAD - HKG

1 stop22h 00mQatar Airways

Deal found 9/16

$982

Fri 10/318:30 amHKG - IAD

1 stop23h 00mAir China

Fri 11/710:00 pmIAD - HKG

1 stop24h 45mAir China

Deal found 9/16

$912

Fri 10/319:35 amHKG - IAD

2 stops46h 40mIndiGo

Fri 11/79:10 pmIAD - HKG

2 stops45h 45mIndiGo

Deal found 9/15

$991

One-way flights from Hong Kong to Dulles Intl
Search for one-way flight options from Hong Kong to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 17, 2025.

Thu 10/93:30 pmHKG - IAD

2 stops40h 15mIndiGo

Deal found 9/15

$450

Sun 12/77:10 amHKG - IAD

3 stops42h 39mMultiple Airlines

Deal found 9/15

$485

Thu 10/233:30 pmHKG - IAD

2 stops40h 15mIndiGo

Deal found 9/15

$494

Fri 10/243:30 pmHKG - IAD

2 stops40h 15mIndiGo

Deal found 9/15

$502

Mon 11/109:35 amHKG - IAD

2 stops46h 40mIndiGo

Deal found 9/16

$503

Mon 10/271:40 pmHKG - IAD

3 stops42h 40mMultiple Airlines

Deal found 9/16

$505

Mon 10/279:35 amHKG - IAD

2 stops46h 40mIndiGo

Deal found 9/15

$506

Tue 11/1810:45 pmHKG - IAD

2 stops44h 38mMultiple Airlines

Deal found 9/17

$507

Thu 10/238:10 pmHKG - IAD

3 stops51h 49mMultiple Airlines

Deal found 9/15

$508

Sat 10/183:30 pmHKG - IAD

2 stops40h 15mIndiGo

Deal found 9/15

$510

Sun 10/261:40 pmHKG - IAD

3 stops45h 42mMultiple Airlines

Deal found 9/16

$511

Wed 11/199:35 amHKG - IAD

2 stops46h 40mIndiGo

Deal found 9/17

$512

Cheapflights Fare Finder

Use the filters below to find and compare flights from Hong Kong to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Mon 11/3

11:25 am-9:23 pm

2 stops22h 58m

Washington, D.C. Dulles Intl

Mon 11/10

6:03 pm-6:45 am

1 stop23h 42m

$858

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Sun 11/2

11:25 am-10:23 pm

2 stops22h 58m

Washington, D.C. Dulles Intl

Mon 11/10

10:08 pm-7:15 pm

1 stop32h 07m

$858

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Fri 10/17

10:30 pm-11:55 am

2 stops25h 25m

Washington, D.C. Dulles Intl

Fri 11/7

6:30 am-7:20 pm

1 stop23h 50m

$858

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Sat 11/1

10:45 pm-12:49 pm

2 stops26h 04m

Washington, D.C. Dulles Intl

Sat 11/8

8:30 am-6:45 am

1 stop33h 15m

$858

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 10/9

9:15 am-8:55 pm

2 stops23h 40m

Washington, D.C. Dulles Intl

Mon 10/13

7:22 pm-4:45 pm

1 stop33h 23m

$859

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 11/25

10:35 am-11:59 pm

2 stops26h 24m

Washington, D.C. Dulles Intl

Sun 11/30

10:31 pm-7:20 pm

1 stop31h 49m

$859

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 11/27

10:30 pm-11:49 am

2 stops26h 19m

Washington, D.C. Dulles Intl

Sun 11/30

6:30 am-6:45 am

1 stop35h 15m

$859

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Fri 10/31

10:30 pm-11:47 am

2 stops25h 17m

Washington, D.C. Dulles Intl

Fri 11/7

6:59 pm-7:00 am

1 stop23h 01m

$859

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Mon 11/3

11:25 am-11:59 pm

2 stops25h 34m

Washington, D.C. Dulles Intl

Sun 11/16

6:59 pm-7:00 am

1 stop23h 01m

$864

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Thu 10/23

3:30 pm-7:45 pm

2 stops40h 15m

$494

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 20 results

Best time to book a flight from Hong Kong to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Hong Kong with our price prediction graph.

Estimated round-trip 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 from Hong Kong to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Hong Kong to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Hong Kong to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Hong Kong to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

How long is the flight from Hong Kong to Washington, D.C. Dulles Intl Airport?
A quick flight from Hong Kong to Washington, D.C. Dulles Intl Airport can take about 22h 58m. United Airlines provides one of the quickest options available for as low as $858. Hong Kong and Washington, D.C. Dulles Intl Airport are separated by a distance of 8135 mi.
Can I find deals for flights from Hong Kong to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Hong Kong to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Hong Kong to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hong Kong to Dulles Intl.
Can I find deals for business class flights from Hong Kong to Dulles Intl?
Yes. Cheapflights offers flight deals from Hong Kong to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Hong Kong to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Hong Kong to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Hong Kong to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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$450+ Cheap flights from Hong Kong to Dulles Intl (IAD)

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Hong Kong to Dulles Intl with Cheapflights

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Cheap flight deals from Hong Kong to Dulles Intl

Keep the following information in mind while searching for Hong Kong to Dulles Intl flight deals. Data was last updated September 17, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Hong Kong to Dulles Intl

Cheapest flights from Hong Kong to Dulles IntlExplore the most affordable flight options available from Hong Kong to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

Explore the most affordable flight options available from Hong Kong to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Hong Kong to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Hong Kong to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Hong Kong with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Hong Kong to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Hong Kong to Washington, D.C. Dulles Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Hong Kong to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Hong Kong to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Hong Kong to Dulles Intl that include hotel bookings?

How can I find direct flights from Hong Kong to Dulles Intl?

Can I find deals for business class flights from Hong Kong to Dulles Intl?

What is the cheapest month to book a flight from Hong Kong to Washington, D.C. Dulles Intl Airport?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Cheapest flights from Hong Kong to Dulles Intl
Explore the most affordable flight options available from Hong Kong to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.