IAD - HKG

$445 Find Cheap Flights from Washington Dulles Airport to Hong Kong

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Hong Kong departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Hong Kong.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Hong Kong.
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Flight Deals

Cheap Flights from Dulles Intl to Hong Kong (IAD-HKG)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Hong Kong that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Hong Kong

Mon, Nov 10 - Thu, Feb 19
Air Canada Logo
9:45 am - 6:40 pmIAD-HKG
43h 55m2 stops
Air Canada Logo
8:25 pm - 8:59 pmHKG-IAD
37h 34m2 stops
$805Air Canada
Find Deal
Sun, Feb 15 - Mon, Mar 2
Air Canada Logo
9:45 am - 6:40 pmIAD-HKG
43h 55m2 stops
Air Canada Logo
8:25 pm - 8:59 pmHKG-IAD
37h 34m2 stops
$806Air Canada
Find Deal
Mon, Nov 24 - Mon, Dec 15
 Logo
9:00 am - 10:50 pmIAD-HKG
24h 50m2 stops
 Logo
9:05 am - 8:59 pmHKG-IAD
24h 54m2 stops
Tue, Nov 25 - Wed, Feb 18
Air Canada Logo
5:15 pm - 6:40 pmIAD-HKG
36h 25m2 stops
Air Canada Logo
8:25 pm - 8:59 pmHKG-IAD
37h 34m2 stops
$812Air Canada
Find Deal
Sun, Nov 16 - Thu, Dec 11
Air Canada Logo
9:45 am - 6:40 pmIAD-HKG
43h 55m2 stops
Air Canada Logo
8:25 pm - 11:39 amHKG-IAD
52h 14m2 stops
$815Air Canada
Find Deal
Mon, Feb 16 - Mon, Mar 2
Air Canada Logo
10:13 pm - 6:40 pmIAD-HKG
31h 27m2 stops
Air Canada Logo
8:25 pm - 9:23 pmHKG-IAD
37h 58m2 stops
$816Air Canada
Find Deal
Tue, Oct 21 - Tue, Nov 18
Air Canada Logo
9:35 am - 10:45 pmIAD-HKG
25h 10m2 stops
Air Canada Logo
8:25 pm - 8:54 pmHKG-IAD
37h 29m2 stops
$818Air Canada
Find Deal
Sun, Nov 16 - Mon, Dec 8
Air Canada Logo
1:20 pm - 6:40 pmIAD-HKG
40h 20m2 stops
Air Canada Logo
10:00 am - 8:59 pmHKG-IAD
23h 59m2 stops
$819Air Canada
Find Deal
Wed, Nov 12 - Tue, Dec 2
 Logo
9:45 am - 10:20 pmIAD-HKG
23h 35m2 stops
 Logo
10:00 am - 8:59 pmHKG-IAD
23h 59m3 stops
Mon, Nov 10 - Wed, Jan 14
Air Canada Logo
1:20 pm - 6:40 pmIAD-HKG
40h 20m2 stops
Air Canada Logo
8:25 pm - 4:30 pmHKG-IAD
33h 05m2 stops
$822Air Canada
Find Deal

Everything you should know

When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 12% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 22% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$805
Overall average: $942
Air Canada
Mon 11/10Thu 2/19
IAD - HKG • 2 stops
Cheapest one-way
$445
Typical prices: $622-868
IndiGo
Tue 2/10
IAD - HKG • 2 stops
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Hong Kong!
Booking Insights

KAYAK's insights & trends for Dulles Intl to Hong Kong flights

Get data-powered insights and trends into flights from Dulles Intl to Hong Kong to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Hong Kong, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Hong Kong is November, where tickets cost $942 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is $1,486 and $1,404 respectively.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Hong Kong?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Hong Kong, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Hong Kong, you should book around 2 weeks before departure, which saves you about 12% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$445
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Washington Dulles Airport to Hong Kong

When to book flights from Dulles Intl to Hong Kong

Are your dates flexible? Find out the best times to travel from Dulles Intl to Hong Kong based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Hong Kong flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Hong Kong was $445 for a one-way ticket and $805 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Hong Kong?

    Yes

  • Which airports will I be using when flying from Washington Dulles Airport to Hong Kong?

    Washington Dulles Airport and Hong Kong are both served by 1 main airport. You will leave Washington Dulles Airport from Washington, D.C. Dulles Intl and will be arriving at Hong Kong Intl.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Hong Kong?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Hong Kong?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Washington Dulles Airport and Hong Kong, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Hong Kong, Korean Air or Cathay Pacific?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Hong Kong are Korean Air and Cathay Pacific. With an average price for the route of $1,201 and an overall rating of 8.4, Korean Air is the most popular choice. Cathay Pacific is also a great choice for the route, with an average price of $1,421 and an overall rating of 7.6.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Hong Kong?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Hong Kong.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Hong Kong?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Hong Kong from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Hong Kong?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Hong Kong with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and HKG can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Hong Kong?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Hong Kong from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Dulles Intl to Hong Kong

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Hong Kong. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Hong Kong? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1139 reviews
8.7Crew
8.2Entertainment
8.5Boarding
8.3Comfort
8.1Food
Airline reviews

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

8.0 ExcellentMatt, Aug 2025ATL - EWR
Read more Korean Air reviews

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I normally love Korean Air, but this trip was not great. We boarded the plan and were settling into our seats. My son and I use these leg swings and we used it on the trip over to Cambodia, but on the way back the flight attendant very rudely told us we could not use it and that it was against regulations. I asked to see the regulation, but never saw it. The food on this trip was horrible as well, Even my son's kids meal was disgusting so we didn't eat anything on the flight. Thankfully we brought snacks. Entertainment - what happened to the games?

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Not many people, so you can lay down on two seats

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

Nothing to complain. The staff and flight was good especially the seats which was better compared than the cloth ones on Qatar airways

I was travelling 3.5 years after. Agree Economy is no business class but the food was mediocre. Ordered a Hindu meal, the salads were bitter . The food was really below quality and had no tast from what I had in the past. Indian Railways probably have a better quality food when compared. However the kids meal was really nice and really appreciate how they were taken care of. The restrooms were dirty .

My flight was with American Airlines 120. The flight was delayed 3 hours and I missed my connection. When I arrived in Doha, the AA staff told me to call an 800 number to rebook a different flight, which was unacceptable. Eventually a Qatar Air staff member helped rebook me on a flight to Manila, that was 12 hours later. They offered me a hotel and meal voucher which I declined, because I didn’t want to leave the airport. Long story short, I spent 12 hours in the Doha airport waiting for my next flight.

Overall the experience was neat with crew being nice and caring especially to parent with kids. The free snacks option was okay. The kiosk at Philly airport didn’t work.

Reason for travelling Tampa to Orlando is to fly Qatar Airline. we end up with American Airline. This was the miserable experience I ever had in my entire travel history. Flight attendants were rude. They hit my knee with the food cart and I was holding ice pack for 2 hours. I still have the pain after a week. WE boarded the flight twice because of the temperature inside the plan.

First keep the airline as you promise. Reason for travelling from Orlando to Tampa is to go with Qatar Airline. We end up with American Airline. As expected the service was horrible.

Not sure how we end up with American Airlines instead of Qatar Airways. From Philadelphia to Qatar they boarded us then they asked us to unload. After 30 minutes later they board us again. The inside the plane it was burning hot and we were sweating like crazy. Crew members are absolute rude. The way they served the passengers were horrible. One of the crew members hit my knee with food cart and kept going. I was holding an ice pack for almost 2 hours. I am still with the pain.

I felt that when I was rerouted it should have been to business class.

The flight was smooth Thank God but the delays and changing gates for 3-4 times made me so tired of walking back and forth with heavy bags I thought I was going to pass out with heavy headaches but Thank God finally found the final gate and home safe. These delays happen anytime for important reasons so just be patient when you come across these situations.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

Nothing to complain of, the only reason I am not giving better marks is that I am used to flying with ANA and they are the top.

It's terrible that we can't do online check in because we didn't buy the tickets directly from Air china. It was not explained until I contacted Chatdeal and we could not sit together.

Communication between the captain/crew and the passengers needs to be improved.

Food and service are good. Bathroom was lack of lotions and cleaning. That should be improved.

Food & service very good next I will pick up again

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced. Also, a cabin bag allows only 5kg!

Everything was not satisfactory - the flight was delayed, staffs were ok but they didn't speak English well. I am from east Asia (not Chinese) and they didn't care enough to remember that I wasn't Chinese but persistently spoke chinese to me. The flight announcement in english wasn't clear to understand.

I wish I had been able to choose a vegetarian meal. Crew friendly and helpful. Seat was ok. All quite efficient and pleasant. Would recommend for inner China travel for sure.

The flight is not bad, but the Business Lounge is not big enough for the quantity of people they accept and there is a limited options for food and beverages.

It was simply bad and on top of that my luggage hasn't been delivered until now. They can't even localize it which is just unacceptable when they are supposed to scan the bar code they put when we check in

For the price, it was a really good experience. There was no entertainment on board, so I couldn't really rate this, and I didn't order a meal. I appreciated that there was a free glass of wine.

Short flight. Everything was fine except the flight was delayed twice for a total of an hour.

My flight from New York to Canada and Canada to Brisbane was canceled, so I had to take united airlines instead flight from New York to Dubai then layover in Dubai 8 hours then from Dubai to Brisbane it was extremely difficult for me , it was a nightmare flying with Canadian airlines unfortunately.

I found the boarding easy and my seat was very comfortable as I had a lot of leg room. I am not too happy that I no longer have lounge access even though I used to get it with my TD credit card.

Flight cancelled. Major disruption to our travel. Do not use Air Canada from KC. To few flights.

Real smooth and easy, Real good leg room in coach!

There labor disputes cancelled my flight less than 24 hours before my boarding time but there customer service/website was easy enough to navigate and they rebooked me for no upcharge.

Re luggage I carried a backpack only. I did not check any bags in. However there were other passengers with carry on luggage going in the plane. My question is why are others allowed to have a carry on luggage inside the plane? Shouldn’t they have dropped it off at the gate? I’m asking because I could have brought the same thing instead of a backpack only. Please clarify for future reference. Thank you.

Like the service. Very hard to communicate or contact when have problems

Very bad, flight was cancelled due to strike and staff was unable to rebook us

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