HK$761+ Cheap flights from Washington, D.C. Dulles Intl Airport
This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22-10. 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.
What to know about flights from Dulles Intl
Discover essential information about flights departing from Dulles Intl, including flight schedules, destinations, airlines operating at the Dulles Intl airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 9 July 2025.
Good round-trip deal | HK$2,504 or less |
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Good one-way deal | HK$2,937 or less |
Find flights from Dulles Intl
Cheapest flights from Dulles IntlExplore the most affordable flight options available from Dulles Intl. Find the lowest fares based on data from user searches, with prices last updated on 9 July 2025.
Explore the most affordable flight options available from Dulles Intl. Find the lowest fares based on data from user searches, with prices last updated on 9 July 2025.
Find flights from Dulles Intl within your budget
Find flights departing from Dulles Intl that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 9 July 2025. In the last 7 days, Cheapflights users made a total of 70,647 searches
Fly to
Route
Departure
Return
Price
Washington, D.C.Calgary
IAD - YYC
IADYYC
Washington, D.C. Dulles Intl
Sun 17-8
08:30-22:53
1 stop16h 23m
Calgary
Wed 27-8
14:55-21:16
Nonstop4h 21m
Washington, D.C.Calgary
IAD - YYC
IADYYC
Washington, D.C. Dulles Intl
Sat 23-8
09:13-12:00
Nonstop4h 47m
Calgary
Thu 28-8
00:20-09:37
1 stop7h 17m
Washington, D.C.Calgary
IAD - YYC
IADYYC
Washington, D.C. Dulles Intl
Sat 8-11
14:15-20:54
1 stop8h 39m
Calgary
Wed 12-11
14:50-23:34
1 stop6h 44m
Washington, D.C.London
IAD - LHR
IADLHR
Washington, D.C. Dulles Intl
Mon 15-9
20:17-11:25
1 stop10h 08m
London Heathrow
Fri 26-9
08:40-15:35
1 stop11h 55m
Washington, D.C.London
IAD - LHR
IADLHR
Washington, D.C. Dulles Intl
Thu 4-9
18:40-06:55
Nonstop7h 15m
London Heathrow
Thu 2-10
13:45-16:15
1 stop31h 30m
Washington, D.C.London
IAD - LHR
IADLHR
Washington, D.C. Dulles Intl
Mon 18-8
22:20-10:40
Nonstop7h 20m
London Heathrow
Mon 1-9
18:40-16:15
1 stop26h 35m
Washington, D.C.London
IAD - LHR
IADLHR
Washington, D.C. Dulles Intl
Mon 1-9
22:40-11:05
Nonstop7h 25m
London Heathrow
Mon 27-10
12:10-16:35
Nonstop8h 25m
Washington, D.C.London
IAD - LHR
IADLHR
Washington, D.C. Dulles Intl
Thu 25-9
20:45-13:00
1 stop11h 15m
London Heathrow
Tue 7-10
08:45-16:15
1 stop12h 30m
Washington, D.C.Amsterdam
IAD - AMS
IADAMS
Washington, D.C. Dulles Intl
Thu 9-10
22:05-18:25
2 stops14h 20m
Amsterdam Schiphol
Sun 19-10
19:25-19:59
2 stops30h 34m
Washington, D.C.London
IAD - LHR
IADLHR
Washington, D.C. Dulles Intl
Sun 14-9
17:25-21:40
1 stop23h 15m
London Heathrow
Sun 21-9
06:00-14:35
1 stop13h 35m
Best time to book a flight from Dulles Intl
Have a flexible travel schedule? Discover the best time to fly from Dulles Intl with our price prediction graph.
Travel insights for flights from Dulles Intl
Get recent, data-driven insights about flights from Dulles Intl including ideal travel times, pricing trends, and more.
When is the best time to book a flight from Washington, D.C. Dulles Intl Airport?
Use this chart to determine the optimal time to book a return flight from Dulles Intl to Hong Kong. Price data was last updated on 27 June 2025.
The price you pay for your flight from Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 84 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport?
Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport (average of HK$5,220). Flying from Washington, D.C. Dulles Intl Airport in July will prove the most costly (average of HK$9,883). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.
What are popular destinations to fly to from Washington, D.C. Dulles Intl Airport?
If you’re flying from Washington, D.C. Dulles Intl Airport, these routes are more frequently taken by airlines Chicago (370 flights per day), London (356 flights per day) and San Francisco (270 flights per day).
What is the cheapest place to fly to from Washington, D.C. Dulles Intl Airport?
The cheapest city to fly to from Washington, D.C. Dulles Intl Airport is Kastrup Copenhagen, with prices starting at HK$2,937. Explore other affordable destinations below.
Airline reviews for flights from Dulles Intl
Get insights into the airlines that provide service from 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 airline for your flight from Dulles Intl. In the last 7 days, Cheapflights users made a total of 70,647 searches.
Get a feel of what it's like to fly with ANA, Korean Air, andChina Airlines from Washington, D.C. Dulles Intl Airport by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Food
Crew
Entertainment
Boarding
Overall
Reviews
Kenneth,Jul 2025
SFO - HND
Comfort
Food
Crew
Entertainment
Boarding
Overall
Reviews
Kenneth,Jul 2025
SFO - HND
Comfort
Food
Crew
Entertainment
Boarding
Overall
Reviews
Kenneth,Jul 2025
SFO - HND
Comfort
Food
Crew
Entertainment
Boarding
Overall
Reviews
Kenneth,Jul 2025
SFO - HND
Comfort
Food
Crew
Entertainment
Boarding
Overall
Reviews
Kenneth,Jul 2025
SFO - HND
Comfort
Food
Crew
Entertainment
Boarding
Overall
Reviews
Kenneth,Jul 2025
SFO - HND
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Alternate flight departure points to Dulles Intl
Consider leaving from one of these other departure points that are located a short distance from Dulles Intl. Flight origins were last updated on 9 July 2025.
Related info for your journey
Access useful and relevant information related to your journey from Dulles Intl. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 9 July 2025.
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