$446 Cheap Flights from Washington (DCA) to Hanoi (HAN)

View $446 flight on Wed, Nov 12, 2025Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Noi Bai Intl. Airport (HAN)

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Cheap Flights from Washington to Hanoi (DCA-HAN)

Prices were available within the past 7 days and start at $446 for one-way flights and $832 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Mon, Sep 1 - Wed, Sep 17
DCA
Washington
HAN
Hanoi
$832 Roundtrip, found 5 hours ago
$832
Roundtrip
found 5 hours ago
Select Korean Air flight, departing Mon, Sep 1 from Washington to Hanoi, returning Wed, Sep 17, priced at $832 found 5 hours ago
Korean Air
Thu, Sep 25 - Wed, Oct 22
DCA
Washington
HAN
Hanoi
$856 Roundtrip, found 3 days ago
$856
Roundtrip
found 3 days ago
Select Korean Air flight, departing Thu, Sep 25 from Washington to Hanoi, returning Wed, Oct 22, priced at $856 found 3 days ago
Korean Air
Tue, Oct 21 - Tue, Oct 28
DCA
Washington
HAN
Hanoi
$856 Roundtrip, found 8 hours ago
$856
Roundtrip
found 8 hours ago
Select Korean Air flight, departing Tue, Oct 21 from Washington to Hanoi, returning Tue, Oct 28, priced at $856 found 8 hours ago
Korean Air
Thu, Oct 30 - Tue, Nov 18
DCA
Washington
HAN
Hanoi
$868 Roundtrip, found 3 days ago
$868
Roundtrip
found 3 days ago
Select Korean Air flight, departing Thu, Oct 30 from Washington to Hanoi, returning Tue, Nov 18, priced at $868 found 3 days ago
Korean Air
Mon, Aug 25 - Mon, Sep 8
DCA
Washington
HAN
Hanoi
$868 Roundtrip, found 5 hours ago
$868
Roundtrip
found 5 hours ago
Select Korean Air flight, departing Mon, Aug 25 from Washington to Hanoi, returning Mon, Sep 8, priced at $868 found 5 hours ago
Korean Air
Thu, Oct 30 - Mon, Nov 17
DCA
Washington
HAN
Hanoi
$880 Roundtrip, found 7 hours ago
$880
Roundtrip
found 7 hours ago
Select Korean Air flight, departing Thu, Oct 30 from Washington to Hanoi, returning Mon, Nov 17, priced at $880 found 7 hours ago
Delta
Tue, Sep 9 - Wed, Sep 17
DCA
Washington
HAN
Hanoi
$971 Roundtrip, found 3 days ago
$971
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Sep 9 from Washington to Hanoi, returning Wed, Sep 17, priced at $971 found 3 days ago
United
Mon, Jan 26 - Mon, Feb 16
DCA
Washington
HAN
Hanoi
$982 Roundtrip, found 5 days ago
$982
Roundtrip
found 5 days ago
Select United flight, departing Mon, Jan 26 from Washington to Hanoi, returning Mon, Feb 16, priced at $982 found 5 days ago
All Nippon Airways
Wed, Apr 29 - Mon, May 11
DCA
Washington
HAN
Hanoi
$1,014 Roundtrip, found 5 days ago
$1,014
Roundtrip
found 5 days ago
Select All Nippon Airways flight, departing Wed, Apr 29 from Washington to Hanoi, returning Mon, May 11, priced at $1,014 found 5 days ago
American Airlines
Tue, Sep 23 - Sun, Oct 5
DCA
Washington
HAN
Hanoi
$1,143 Roundtrip, found 3 days ago
$1,143
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Sep 23 from Washington to Hanoi, returning Sun, Oct 5, priced at $1,143 found 3 days ago
Flights from Washington (DCA) to Hanoi (HAN)
Origin airport
Ronald Reagan Washington National
Destination airport
Noi Bai Intl.
Airlines serving
Air Canada, Air France, All Nippon Airways, American Airlines, Cathay Pacific, Delta, Japan Airlines, Korean Air, Qatar Airways, United
Roundtrip price
$832
Distance
8282 mi

Washington to Hanoi Flights

The cheapest times to fly from Washington to Hanoi

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Hanoi are during the month of September. You can find some of the cheapest flights from Washington to Hanoi with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Hanoi

Sunday is one of the best days to book for cheap flights from Washington to Hanoi: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Hanoi

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Hanoi in 2025. You can also book with separate airlines for your outbound and return journeys, from $446 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Hanoi flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Hanoi airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Noi Bai Intl. Airport (HAN) cost?
Discover the latest flight deals from DCA to HAN by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from DCA to HAN?
The cheapest flights from DCA to HAN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from DCA to HAN?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from DCA to HAN. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Noi Bai Intl. Airport (HAN)?
You'll need to take a flight with a layover when traveling from Ronald Reagan Washington National Airport (DCA) to Noi Bai Intl. Airport (HAN). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from DCA to HAN?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Noi Bai Intl. Airport (HAN)?
To reach Noi Bai Intl. Airport (HAN) on time, select a flight that leaves Ronald Reagan Washington National Airport (DCA) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to Noi Bai Intl. Airport (HAN) last-minute?
Last-minute fares from DCA to HAN are typically more expensive. To lock in the lowest rates, start looking for flights as soon as possible. That being said, if you're flexible with your travel plans, you may land a cheap ticket just before your departure.
Is it cheaper to book a DCA to HAN flight and hotel package?
Opting for a DCA to HAN flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Pick from our extensive range of accommodations and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Noi Bai Intl. Airport (HAN)?
If you booked your DCA to HAN flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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*Available to One Key members.