HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Hanoi

$478+ Cheap flights from Reagan-National (DCA) to Hanoi (HAN)

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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — HAN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Hanoi with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Reagan-National to Hanoi

Cheapest flights from Reagan-National to Hanoi
Explore the most affordable flight options available from Reagan-National to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Orbitz deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/304:59 pmDCA - HAN
2 stops25h 56mMultiple Airlines
Mon 1/126:20 pmHAN - DCA
2 stops37h 40mMultiple Airlines
Deal found 12/10$1,770
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:00 pmDCA - HAN
3 stops42h 05mUnited Airlines
Sun 1/1112:25 amHAN - DCA
2 stops52h 27mUnited Airlines
Deal found 12/10$1,778
This Air Canada deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/279:40 amDCA - HAN
2 stops24h 45mAir Canada
Thu 1/1512:25 amHAN - DCA
2 stops31h 20mAir Canada
Deal found 12/9$1,782
This Qatar Airways deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/274:59 pmDCA - HAN
2 stops25h 56mQatar Airways
Thu 1/151:45 amHAN - DCA
2 stops29h 10mQatar Airways
Deal found 12/11$1,833
This Delta deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/277:20 amDCA - HAN
2 stops26h 25mDelta
Fri 1/1611:05 pmHAN - DCA
2 stops33h 27mDelta
Deal found 12/10$1,856
This oojo deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:36 amDCA - HAN
2 stops36h 29mCathay Pacific
Wed 1/710:30 amHAN - DCA
2 stops44h 14mCathay Pacific
Deal found 12/11$2,039
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:00 pmDCA - HAN
3 stops42h 05mUnited Airlines
Sun 1/1112:25 amHAN - DCA
2 stops52h 27mUnited Airlines
Deal found 12/10$2,110
This oojo deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/285:00 pmDCA - HAN
2 stops30h 35mEVA Air
Wed 1/76:20 pmHAN - DCA
2 stops37h 40mEVA Air
Deal found 12/11$2,261
This Delta deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/278:20 amDCA - HAN
2 stops25h 25mDelta
Sat 1/311:05 pmHAN - DCA
2 stops30h 44mDelta
Deal found 12/11$2,476
This oojo deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:57 pmDCA - HAN
2 stops52h 38mEVA Air
Sun 1/412:35 pmHAN - DCA
2 stops44h 04mEVA Air
Deal found 12/10$3,561

Find flight deals from Reagan-National to Hanoi

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Hanoi (HAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,181
(KAYAK)

One-way from

$478
(Korean Air)

Popular in

December

Cheapest in

September

Average price

$1,935
Provider with most accurate pricing for Washington, D.C. Reagan-National-Hanoi Noibai flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Hanoi Noibai flights.
Search Deals
From Washington, D.C. Reagan-National to Hanoi Noibai
Search Deals
One-way flight from Washington, D.C. Reagan-National to Hanoi Noibai
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($58 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Hanoi that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Hanoi that are best for you.

Fly from

Reagan-National

Fly to

Hanoi

Route

Depart

Return

Price

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Sun 2/15

6:59 pm-5:15 pm

2 stops58h 16m

Hanoi Noibai

Wed 3/25

6:20 pm-8:41 pm

2 stops37h 21m

$1,184

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Sun 5/10

5:10 pm-10:40 am

2 stops30h 30m

Hanoi Noibai

Thu 8/13

11:10 pm-6:23 pm

2 stops30h 13m

$1,190

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Sun 5/10

5:10 pm-10:40 am

2 stops30h 30m

Hanoi Noibai

Fri 8/14

11:10 pm-5:07 pm

2 stops28h 57m

$1,190

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Sun 5/10

5:10 pm-10:40 am

2 stops30h 30m

Hanoi Noibai

Wed 8/12

11:10 pm-2:43 pm

2 stops26h 33m

$1,193

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Sun 1/4

7:59 pm-11:05 pm

2 stops39h 06m

Hanoi Noibai

Sat 1/24

12:25 am-7:32 pm

2 stops31h 07m

$1,229

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Sat 1/31

9:45 am-3:40 pm

2 stops41h 55m

Hanoi Noibai

Sun 2/15

10:30 am-10:08 am

2 stops35h 38m

$1,231

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Fri 1/30

9:35 am-10:05 am

2 stops36h 30m

Hanoi Noibai

Sun 2/15

10:30 am-10:08 am

2 stops35h 38m

$1,231

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Fri 1/9

6:56 pm-11:35 am

2 stops52h 39m

Hanoi Noibai

Sat 1/17

12:35 pm-8:00 pm

2 stops43h 25m

$1,234

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Thu 1/29

9:35 am-10:05 am

2 stops36h 30m

Hanoi Noibai

Fri 2/13

11:05 am-11:00 pm

2 stops23h 55m

$1,284

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Thu 1/1

8:00 am-5:15 pm

2 stops45h 15m

Hanoi Noibai

Tue 1/20

6:20 pm-4:09 pm

2 stops33h 49m

$1,308

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 20 results
1
2

Compare providers for flights from Reagan-National to Hanoi

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Hanoi in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Hanoi flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Reagan-National Airport-Hanoi flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Hanoi flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Hanoi flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Hanoi flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Reagan-National to Hanoi

Have a flexible travel schedule? Discover the best time to fly to Hanoi from Reagan-National 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.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Hanoi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Hanoi from Washington, D.C. Reagan-National?

    Located just 14.2 mi from the city center, Hanoi Noibai is the airport most travelers will use when flying to Hanoi from Washington, D.C. Reagan-National. Booking flights from Washington, D.C. Reagan-National to Noibai (HAN) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Reagan-National from 0 different airlines.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Hanoi?

    Departing from Washington, D.C. Reagan-National Airport to Hanoi will take you 30h 30m. Airlines will cover a distance of 8276 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Reagan-National to Hanoi that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Hanoi flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Hanoi?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Hanoi.

  • Can I find deals for business class flights from Reagan-National to Hanoi?

    Yes. Cheapflights offers flight deals from Reagan-National to Hanoi by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.