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HK$3,619+ Cheap flights to Washington, D.C.

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 25-9. Fares are subject to change and may not be available on all flights or dates of travel.
— WAS
9 Jul — 16 Jul1
1 adult

Flights to Washington, D.C. in 2025

Find the latest flights to Washington, D.C. 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 4 July 2025.

Return from

HK$7,002

One-way from

HK$3,619

Popular in

August

Cheapest in

February

Average price

HK$10,087
United Airlines
  • United Airlines
  • 23-12-8-1
  • 3 total stops
  • 59h 48m total
  • Hong Kong to Washington, D.C.
25-9
  • 25-9
  • 2 total stops
  • 41h 41m total
  • Hong Kong to Washington, D.C.
Highest demand for flights based on searches. 11% potential increase in price (HK$8,332 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (HK$1,504 potential savings vs. average return price).
Average for return flights in July 2025

Find flight deals to Washington, D.C.

Cheapest flights to Washington, D.C.
Explore the most affordable flight options available to Washington, D.C.. Find the lowest fares based on data from user searches, with prices last updated on 4 July 2025.

Tue 23-1210:35HKG - IAD
2 stops22h 58mUnited Airlines
Thu 8-117:30IAD - HKG
1 stop36h 50mUnited Airlines
Deal found 1-7HK$7,002
Tue 23-1222:45HKG - DCA
2 stops22h 34mUnited Airlines
Thu 8-118:00DCA - HKG
1 stop36h 20mUnited Airlines
Deal found 1-7HK$7,002
Sun 9-1100:55HKG - IAD
1 stop21h 55mKorean Air
Sun 29-313:15IAD - HKG
1 stop33h 40mKorean Air
Deal found 4-7HK$7,488
Sun 9-1100:55HKG - IAD
2 stops36h 12mDelta
Sun 29-310:05IAD - HKG
2 stops36h 50mDelta
Deal found 4-7HK$7,520
Mon 10-1118:10HKG - DCA
2 stops40h 04mDelta
Wed 1-408:00DCA - HKG
2 stops38h 55mDelta
Deal found 4-7HK$7,520
Wed 12-1120:25HKG - DCA
2 stops32h 06mAir Canada
Tue 31-309:40DCA - HKG
2 stops42h 25mAir Canada
Deal found 4-7HK$7,575
Tue 11-1118:05HKG - IAD
1 stop27h 15mQatar Airways
Wed 1-411:00IAD - HKG
1 stop22h 55mQatar Airways
Deal found 4-7HK$7,779
Tue 15-701:25HKG - IAD
1 stop26h 15mJetBlue
Thu 14-821:00IAD - HKG
1 stop30h 10mJetBlue
Deal found 2-7HK$8,014
Thu 21-811:20HKG - BWI
2 stops31h 34mMultiple Airlines
Wed 27-814:30BWI - HKG
3 stops33h 55mMultiple Airlines
Deal found 3-7HK$8,415
Tue 15-714:35HKG - IAD
1 stop37h 10mANA
Wed 6-812:20IAD - HKG
1 stop36h 10mANA
Deal found 3-7HK$8,886
Sat 15-1123:20HKG - IAD
1 stop29h 10mSWISS
Sun 29-317:35IAD - HKG
2 stops35h 05mSWISS
Deal found 4-7HK$9,859
Tue 19-819:40HKG - DCA
2 stops34h 19mMultiple Airlines
Mon 29-1221:20DCA - HKG
2 stops32h 20mMultiple Airlines
Deal found 3-7HK$10,683

Cheapflights Fare Finder

Locate flights to Washington, D.C. 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 4 July 2025.
Use the filters below to find and compare flights to Washington, D.C. that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 23-12

10:35-20:33

2 stops22h 58m

Washington, D.C. Dulles Intl

Thu 8-1

17:30-19:20

1 stop36h 50m

HK$7,002

Hong KongWashington, D.C.

HKG - DCA

HKGDCA

Hong Kong Intl

Tue 23-12

22:45-08:19

2 stops22h 34m

Washington, D.C. Reagan-National

Thu 8-1

18:00-19:20

1 stop36h 20m

HK$7,002

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Sun 9-11

00:55-09:50

1 stop21h 55m

Washington, D.C. Dulles Intl

Mon 30-3

13:15-16:20

1 stop39h 05m

HK$7,488

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Sun 9-11

00:55-23:00

2 stops35h 05m

Washington, D.C. Dulles Intl

Mon 30-3

10:05-10:55

2 stops36h 50m

HK$7,520

Hong KongWashington, D.C.

HKG - DCA

HKGDCA

Hong Kong Intl

Mon 10-11

18:10-21:14

2 stops40h 04m

Washington, D.C. Reagan-National

Wed 1-4

08:00-10:55

2 stops38h 55m

HK$7,520

Hong KongWashington, D.C.

HKG - DCA

HKGDCA

Hong Kong Intl

Wed 12-11

20:25-15:31

2 stops32h 06m

Washington, D.C. Reagan-National

Tue 31-3

09:40-16:05

2 stops42h 25m

HK$7,575

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 11-11

18:05-08:20

1 stop27h 15m

Washington, D.C. Dulles Intl

Wed 1-4

11:00-21:55

1 stop22h 55m

HK$7,779

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 15-7

01:25-15:40

1 stop26h 15m

Washington, D.C. Dulles Intl

Thu 14-8

21:00-15:10

1 stop30h 10m

HK$8,014

Hong KongBaltimore

HKG - BWI

HKGBWI

Hong Kong Intl

Thu 21-8

11:20-06:54

2 stops31h 34m

Baltimore/Washington

Wed 27-8

14:30-12:25

3 stops33h 55m

HK$8,415

Hong KongWashington, D.C.

HKG - IAD

HKGIAD

Hong Kong Intl

Tue 15-7

14:35-15:45

1 stop37h 10m

Washington, D.C. Dulles Intl

Wed 6-8

12:20-12:30

1 stop36h 10m

HK$8,886

Flights are sorted by cheapest return flights first.

Deals found on 3-7

Showing 1-10 of 33 results
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Best time to book a flight to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

When is the best time to book a flight to Washington, D.C.?

Use this chart to determine the optimal time to book a return flight from Hong Kong to Washington, D.C.. Price data was last updated on 27 June 2025.

To ensure you get the cheapest price possible for a flight to Washington, D.C., you should look to book at least 85 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

How long is the flight to Washington, D.C.?

On average, a flight from Hong Kong to Washington, D.C. takes 21 hours 40 minutes. Flights to Washington, D.C. from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.

What are the cheapest airlines that fly to Washington, D.C.?

The cheapest airlines flying from Hong Kong to Washington, D.C. are United Airlines and Korean Air.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. 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 Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., 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).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated 4 July 2025.
See what other customers who have flown with EVA Air, Korean Air, andANA to the United States have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Overall

8.4

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Overall

8.4

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Overall

8.4

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
8.4
Very Good

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Overall

8.4

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Overall

8.4

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
8.0
Very Good

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Overall

8.4

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

FAQs about flying to Washington, D.C.

Washington climate

The busiest seasons for tourist activities are spring and summer, in particular during the time when the cherry blossoms bloom and when schools are out for spring break and then summer holiday. In addition, when Congress is in session and from mid-January through June, hotels and restaurants are full of lobbyists, and the streets are often full of demonstrations. Spring and autumn have the most pleasant weather. Summers in Washington are hot, sometimes exceeding 37 degrees Celsius, and very humid. Winter weather is unpredictable, ranging from mild to very cold.

Getting around Washington

Washington is an easy city to get around. The streets are laid out in a grid, with numbered streets going in one direction and alphabetized streets going the other. The city is divided into four quadrants, with the Capitol building centering them all. Most of the major sights are within walking distance, but you can easily take the Metrobus or Metrorail (subway) if you get tired of walking.

What is good to know if travelling to Washington?

  • White House tours must be scheduled in advance through your member of Congress. Tours may be cancelled, so check before going. The White House website is as up-to-date as possible, and it lists the phone number for a last-minute check on your tour. It also lists items that you may not bring with you (almost everything); there are no storage facilities.
  • In addition to experiencing the beauty of the Capitol building and landscaping, many visitors want to sit in on Congressional debates. To do this, you must obtain gallery passes from your senator or representative’s office; the passes are free. As with the White House, call ahead to check the status of tours, access, and what you may bring.
  • Washington is full of historic sites. One unexpected site is the white neo-Federal Embassy Gulf Service Station, built in 1936 to fit in with the elegance of Washington architecture.
  • The Washington National Cathedral is a beautiful building located on one of the highest points in the city. Construction began in 1907 and was not completed until 1980. Though a cathedral of the Episcopal Church, it was built for the entire nation, and has been used for services from Jewish to Serbian Orthodox. The grounds are as lovely as the building, with gardens and a lawn where you can picnic. In addition to religious services, the cathedral offers guided and audio tours, recitals and concerts. Music lovers can visit the Cathedral for the twice-weekly lunchtime recitals on the magnificent Aeolian-Skinner organ, or attend one of their concerts (classical, jazz, folk) throughout the year.
  • There is always something to attend at the John F. Kennedy Centre for the Performing Arts. This extensive complex of theatres and concert halls, home to the National Symphony Orchestra and the Washington National Opera, hosts distinguished visiting performers and provides some free concerts. In addition to classical music and ballet, concerts include jazz, pops, and other types of music and dance.
  • When is the best time to fly to Washington?

    Peak season: The very busiest time for flights to Washington DC is from about mid-March through June, with school tours and holidaying families everywhere. Airfare and hotel rates are at their highest, and there are long lines for popular attractions. Off season: The quietest times are late August into early September and the period between Thanksgiving (end of November) and mid-January.

  • Can I find cheaper flights to Washington, D.C. 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 Washington, D.C. on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Washington, D.C.?

    Based on reviews from Cheapflights users, United Airlines is rated the highest out of the airlines that fly to Washington, D.C..

  • What is the cheapest airport to fly to in Washington, D.C.?

    Baltimore/Washington is currently the cheapest airport to fly to in Washington, D.C.. One-way flights to Baltimore/Washington typically cost HK$343, while return flights cost around HK$839.

  • How much is a return flight to Washington, D.C.?

    A return flight to Washington, D.C. will typically cost around HK$349, however they can be found for as little as HK$286.

  • Where does the fastest flight to Washington, D.C. depart from?

    For those looking to save time traveling to Washington, D.C., Hong Kong Intl offers the quickest one-way flight (20 hours 49 minutes).

  • 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.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Fairfax
Arlington
Herndon
Silver Spring

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Why should you use Cheapflights to find cheap flight tickets to Washington, D.C.?

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Can Cheapflights find flights to Washington, D.C. with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights to Washington, D.C., users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights to Washington, D.C. become cheaper?

Yes, Cheapflights offers price alerts on Washington, D.C. flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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