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$440+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — HAN
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap 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 August 14, 2025.

Round-trip from

$832
(Korean Air)

One-way from

$440
(AloTrip)

Popular in

June

Cheapest in

September

Average price

$1,482
From Washington, D.C. Reagan-National to Hanoi Noibai
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One-way flight from Washington, D.C. Reagan-National to Hanoi Noibai
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Highest demand for flights based on searches. 13% potential increase in price ($210 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 14, 2025.

This Korean Air deal was found by Cheapflights users on 8/13. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:59 amDCA - HAN
2 stops40h 41mKorean Air
Wed 9/311:10 pmHAN - DCA
2 stops26h 57mKorean Air
Deal found 8/13$832
This Priceline deal was found by Cheapflights users on 8/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/28:35 amDCA - HAN
2 stops26h 00mKorean Air
Wed 9/1711:10 pmHAN - DCA
2 stops26h 47mKorean Air
Deal found 8/14$856
This Kissandfly.com deal was found by Cheapflights users on 8/14. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/48:35 amDCA - HAN
2 stops26h 00mKorean Air
Wed 9/1711:10 pmHAN - DCA
2 stops26h 47mKorean Air
Deal found 8/14$878
This Korean Air deal was found by Cheapflights users on 8/13. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:59 amDCA - HAN
2 stops27h 36mKorean Air
Tue 9/211:10 pmHAN - DCA
2 stops32h 37mKorean Air
Deal found 8/13$882
This American Airlines deal was found by Cheapflights users on 8/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:45 amDCA - HAN
2 stops28h 05mAmerican Airlines
Wed 9/1711:20 pmHAN - DCA
2 stops34h 49mAmerican Airlines
Deal found 8/14$887
This Korean Air deal was found by Cheapflights users on 8/13. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/268:35 amDCA - HAN
2 stops26h 00mKorean Air
Thu 9/411:10 pmHAN - DCA
2 stops26h 57mKorean Air
Deal found 8/13$906
This Korean Air deal was found by Cheapflights users on 8/13. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/298:35 amDCA - HAN
2 stops26h 00mKorean Air
Thu 9/411:10 pmHAN - DCA
2 stops26h 57mKorean Air
Deal found 8/13$956
This Delta deal was found by Cheapflights users on 8/13. 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.
Wed 8/277:38 pmDCA - HAN
2 stops28h 02mDelta
Wed 9/311:10 pmHAN - DCA
2 stops35h 36mDelta
Deal found 8/13$970
This Trip.com deal was found by Cheapflights users on 8/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/48:35 amDCA - HAN
2 stops26h 00mMultiple Airlines
Tue 9/161:40 amHAN - DCA
2 stops43h 40mMultiple Airlines
Deal found 8/14$981
This oojo deal was found by Cheapflights users on 8/13. 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.
Tue 8/267:31 pmDCA - HAN
2 stops27h 24mCathay Pacific
Tue 9/2310:55 amHAN - DCA
2 stops25h 03mCathay Pacific
Deal found 8/13$994
This oojo deal was found by Cheapflights users on 8/14. 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.
Mon 10/1310:45 pmDCA - HAN
2 stops48h 10mCathay Pacific
Tue 11/187:25 pmHAN - DCA
2 stops35h 29mCathay Pacific
Deal found 8/14$1,001
This Delta deal was found by Cheapflights users on 8/13. 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.
Fri 8/297:45 amDCA - HAN
2 stops26h 50mDelta
Wed 9/311:10 pmHAN - DCA
2 stops32h 37mDelta
Deal found 8/13$1,006

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 August 14, 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

Wed 9/3

6:05 am-9:35 pm

2 stops28h 30m

Hanoi Noibai

Mon 9/22

11:10 pm-3:03 pm

2 stops26h 53m

$832

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Tue 9/2

6:05 am-9:35 pm

2 stops28h 30m

Hanoi Noibai

Mon 9/22

11:10 pm-3:03 pm

2 stops26h 53m

$832

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Tue 9/2

8:35 am-9:35 pm

2 stops26h 00m

Hanoi Noibai

Tue 9/23

11:10 pm-3:03 pm

2 stops26h 53m

$832

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Thu 9/4

8:35 am-9:35 pm

2 stops26h 00m

Hanoi Noibai

Mon 9/22

11:10 pm-3:03 pm

2 stops26h 53m

$832

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Thu 8/28

6:05 am-9:35 pm

2 stops28h 30m

Hanoi Noibai

Wed 9/3

11:10 pm-3:07 pm

2 stops26h 57m

$832

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Tue 8/26

6:59 am-10:40 am

2 stops40h 41m

Hanoi Noibai

Wed 9/3

11:10 pm-3:07 pm

2 stops26h 57m

$832

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Tue 9/2

8:35 am-9:35 pm

2 stops26h 00m

Hanoi Noibai

Wed 9/17

11:10 pm-3:03 pm

2 stops26h 53m

$832

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Wed 8/27

8:35 am-9:35 pm

2 stops26h 00m

Hanoi Noibai

Wed 9/3

11:10 pm-3:07 pm

2 stops26h 57m

$832

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Tue 9/2

8:35 am-9:35 pm

2 stops26h 00m

Hanoi Noibai

Wed 9/24

11:10 pm-3:03 pm

2 stops26h 53m

$832

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Thu 9/4

8:35 am-9:35 pm

2 stops26h 00m

Hanoi Noibai

Tue 9/23

11:10 pm-3:03 pm

2 stops26h 53m

$832

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 22 results
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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.

  • 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.

  • What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Hanoi?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Hanoi (average of $913). Flying from Washington, D.C. Reagan-National Airport to Hanoi in December is currently the most expensive (average of $1,618). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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