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 27h 40m. 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.

In terms of precipitation, rainfall in Hanoi ranges from 0.6 - 11.7 inches per month. August is typically the wettest month, when rainfall can reach 11.7 in. December is typically the driest time to visit Hanoi when rainfall is around 0.6 in.

If weather is an important factor for your trip to Hanoi, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 62.6 F).

What is the cheapest time of day to fly from DCA to HAN?

When flying from Washington, D.C. Reagan-National Airport to Hanoi, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Washington, D.C. Reagan-National Airport-Hanoi flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Hanoi flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

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.

$532+ Cheap Flights from Washington, D.C. Reagan-National Airport to Hanoi

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Cheap flight deals from Reagan-National to Hanoi

Cheapest

Best

Last-minute

One-way

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 October 25, 2026.

Wed 11/186:59 am -

2 stops26h 46m

Wed 11/2511:05 pm -

2 stops25h 54m

Deal found 10/19

$1,062

Mon 11/238:40 pm -

2 stops37h 05m

Tue 12/811:05 pm -

2 stops25h 39m

Deal found 10/21

$1,096

Tue 11/247:59 am -

2 stops25h 46m

Tue 12/811:05 pm -

2 stops25h 39m

Deal found 10/23

$1,104

Sun 11/297:45 am -

2 stops26h 00m

Mon 12/1412:20 pm -

2 stops22h 21m

Deal found 10/23

$1,149

Tue 11/246:59 am -

2 stops26h 46m

Thu 12/311:05 pm -

2 stops25h 39m

Deal found 10/23

$1,154

Tue 12/17:00 am -

2 stops28h 15m

Wed 12/2312:35 am -

2 stops31h 29m

Deal found 10/22

$1,172

Mon 12/77:41 am -

2 stops27h 34m

Sun 12/1312:35 am -

2 stops30h 40m

Deal found 10/22

$1,181

Sun 11/296:10 am -

2 stops27h 35m

Sun 12/1312:20 pm -

2 stops22h 21m

Deal found 10/23

$1,199

Tue 10/2711:30 am -

2 stops35h 35m

Tue 11/2410:30 am -

2 stops43h 34m

Deal found 10/19

$1,201

Mon 11/308:30 am -

2 stops26h 45m

Wed 12/912:35 am -

2 stops30h 40m

Deal found 10/23

$1,202

Fri 11/277:00 am -

2 stops26h 45m

Fri 12/411:05 pm -

2 stops25h 36m

Deal found 10/23

$1,204

Wed 11/255:00 pm -

2 stops53h 05m

Tue 12/111:15 am -

2 stops46h 44m

Deal found 10/23

$1,224

Best flights from Reagan-National to Hanoi
Discover carefully curated flight deals from Reagan-National to Hanoi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.

Mon 2/156:05 am -

2 stops27h 40m

Mon 2/2211:05 pm -

2 stops32h 09m

Deal found 10/20

$1,112

Mon 4/51:05 pm -

2 stops42h 05m

Mon 4/197:10 pm -

2 stops34h 49m

Deal found 10/21

$1,125

Sun 1/175:00 pm -

2 stops40h 45m

Sun 4/2511:10 pm -

2 stops27h 01m

Deal found 10/22

$1,160

Mon 3/157:00 am -

2 stops29h 05m

Thu 3/1812:25 am -

2 stops33h 28m

Deal found 10/23

$1,222

Thu 3/187:00 am -

2 stops27h 45m

Sat 3/2711:05 pm -

2 stops32h 08m

Deal found 10/20

$1,163

Thu 1/215:01 pm -

2 stops34h 44m

Sat 2/137:25 pm -

2 stops32h 55m

Deal found 10/22

$1,175

Fri 1/228:20 am -

2 stops25h 25m

Wed 4/2811:10 pm -

2 stops24h 34m

Deal found 10/22

$1,204

Mon 1/255:01 pm -

2 stops29h 04m

Fri 2/127:25 pm -

2 stops32h 55m

Deal found 10/23

$1,175

Thu 1/146:05 am -

2 stops27h 40m

Thu 2/412:20 pm -

2 stops21h 55m

Deal found 10/19

$1,204

Fri 1/226:05 am -

2 stops27h 40m

Sat 2/1311:05 pm -

2 stops32h 09m

Deal found 10/19

$1,212

Mon 11/236:59 am -

2 stops26h 46m

Wed 12/911:05 pm -

2 stops25h 39m

Deal found 10/23

$1,262

Last-minute flights from Reagan-National to Hanoi
Discover last-minute flight deals from Reagan-National to Hanoi. Data last updated October 25, 2026 and is based on user searches.

Tue 10/2711:30 am -

2 stops35h 35m

Tue 11/2410:30 am -

2 stops43h 34m

Deal found 10/19

$1,201

Tue 10/2711:30 am -

2 stops35h 35m

Wed 11/411:15 am -

2 stops42h 49m

Deal found 10/21

$1,232

Mon 11/910:11 am -

2 stops41h 34m

Wed 11/257:25 pm -

2 stops35h 07m

Deal found 10/21

$1,228

Wed 11/186:59 am -

2 stops26h 46m

Wed 11/2511:05 pm -

2 stops25h 54m

Deal found 10/19

$1,062

Mon 11/238:40 pm -

2 stops37h 05m

Tue 12/811:05 pm -

2 stops25h 39m

Deal found 10/21

$1,096

Tue 11/246:59 am -

2 stops26h 46m

Wed 12/211:05 pm -

2 stops25h 39m

Deal found 10/23

$1,104

Tue 11/246:59 am -

2 stops26h 46m

Thu 12/311:05 pm -

2 stops25h 39m

Deal found 10/23

$1,154

Wed 11/255:00 pm -

2 stops53h 05m

Tue 12/111:15 am -

2 stops46h 44m

Deal found 10/23

$1,224

Fri 11/277:00 am -

2 stops26h 45m

Fri 12/411:05 pm -

2 stops25h 36m

Deal found 10/23

$1,204

Sun 11/297:45 am -

2 stops26h 00m

Mon 12/1412:20 pm -

2 stops22h 21m

Deal found 10/23

$1,149

Sun 11/296:10 am -

2 stops27h 35m

Sun 12/1312:20 pm -

2 stops22h 21m

Deal found 10/23

$1,199

Mon 11/308:30 am -

2 stops26h 45m

Wed 12/912:35 am -

2 stops30h 40m

Deal found 10/23

$1,202

One-way flights from Reagan-National to Hanoi
Search for one-way flight options from Reagan-National to Hanoi. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.

Wed 1/276:00 am -

2 stops36h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/21

$532

Thu 11/128:00 am -

2 stops53h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/21

$540

Thu 1/286:00 am -

2 stops36h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/22

$546

Fri 1/226:00 am -

2 stops36h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/20

$552

Tue 11/107:00 am -

3 stops38h 40m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/23

$559

Fri 1/156:00 am -

2 stops36h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/23

$561

Mon 1/118:00 am -

3 stops36h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/21

$579

Sun 1/105:00 pm -

3 stops51h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/22

$583

Wed 3/2411:15 am -

2 stops35h 50m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/20

$591

Find flight deals from Reagan-National to Hanoi

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,062 (Delta)
One-way from	$532 (Expedia)
Popular in	December
Cheapest in	March
Average price	$1,195

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. 12% potential increase in price ($188 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($59 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Hanoi

DCA Washington, D.C. Reagan-National - HAN Hanoi Noibai

DCAHAN

Washington, D.C. Reagan-National

Fri 1/15

6:00 am-6:45 am

2 stops36h 45m

Hanoi Noibai

Wed 12/31

12:00 am-11:00 am

Nonstop0h 00m

$561

Washington, D.C.Hanoi

DCA Washington, D.C. Reagan-National - HAN Hanoi Noibai

DCAHAN

Washington, D.C. Reagan-National

Tue 3/30

7:33 am-6:10 pm

2 stops47h 37m

Hanoi Noibai

Wed 12/31

12:00 am-11:00 am

Nonstop0h 00m

$571

Washington, D.C.Hanoi

DCA Washington, D.C. Reagan-National - HAN Hanoi Noibai

DCAHAN

Washington, D.C. Reagan-National

Thu 11/12

5:05 pm-10:05 am

2 stops29h 00m

Hanoi Noibai

Wed 12/31

12:00 am-11:00 am

Nonstop0h 00m

$571

Washington, D.C.Hanoi

DCA Washington, D.C. Reagan-National - HAN Hanoi Noibai

DCAHAN

Washington, D.C. Reagan-National

Mon 1/11

6:00 am-6:45 am

2 stops36h 45m

Hanoi Noibai

Wed 12/31

12:00 am-11:00 am

Nonstop0h 00m

$585

Washington, D.C.Hanoi

DCA Washington, D.C. Reagan-National - HAN Hanoi Noibai

DCAHAN

Washington, D.C. Reagan-National

Tue 11/10

5:11 pm-3:45 pm

2 stops58h 34m

Hanoi Noibai

Wed 12/31

12:00 am-11:00 am

Nonstop0h 00m

$646

Washington, D.C.Hanoi

DCA Washington, D.C. Reagan-National - HAN Hanoi Noibai

DCAHAN

Washington, D.C. Reagan-National

Sun 1/10

7:30 pm-9:45 pm

2 stops38h 15m

Hanoi Noibai

Wed 12/31

12:00 am-11:00 am

Nonstop0h 00m

$660

Washington, D.C.Hanoi

DCA Washington, D.C. Reagan-National - HAN Hanoi Noibai

DCAHAN

Washington, D.C. Reagan-National

Sun 11/1

9:30 am-11:35 am

2 stops62h 05m

Hanoi Noibai

Wed 12/31

12:00 am-11:00 am

Nonstop0h 00m

$678

Washington, D.C.Hanoi

DCA Washington, D.C. Reagan-National - HAN Hanoi Noibai

DCAHAN

Washington, D.C. Reagan-National

Mon 12/7

7:42 am-11:15 pm

2 stops27h 33m

Hanoi Noibai

Wed 12/31

12:00 am-11:00 am

Nonstop0h 00m

$686

Quickest round-trip

Washington, D.C.Hanoi

DCA Washington, D.C. Reagan-National - HAN Hanoi Noibai

DCAHAN

Washington, D.C. Reagan-National

Fri 1/29

8:20 am-9:45 pm

2 stops25h 25m

Hanoi Noibai

Wed 12/31

12:00 am-11:00 am

Nonstop0h 00m

$692

Washington, D.C.Hanoi

DCA Washington, D.C. Reagan-National - HAN Hanoi Noibai

DCAHAN

Washington, D.C. Reagan-National

Fri 12/25

8:05 am-11:10 am

2 stops39h 05m

Hanoi Noibai

Wed 12/31

12:00 am-11:00 am

Nonstop0h 00m

$788

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/23

Showing 1-10 of 21 resultsSorted by cheapest first

Compare providers for flights from Reagan-National to Hanoi

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 October.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Ovago	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy2 stars	Trust Score*3 stars
Expedia	Price Accuracy1 star	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Hanoi flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

DCA-HAN

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

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 27h 40m. 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

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$532+ Cheap flights from Reagan-National (DCA) to Hanoi (HAN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/27. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Reagan-National to Hanoi

Cheapest flights from Reagan-National to HanoiExplore 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 October 25, 2026.

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 October 25, 2026.

Best flights from Reagan-National to HanoiDiscover carefully curated flight deals from Reagan-National to Hanoi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.

Discover carefully curated flight deals from Reagan-National to Hanoi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.

Last-minute flights from Reagan-National to HanoiDiscover last-minute flight deals from Reagan-National to Hanoi. Data last updated October 25, 2026 and is based on user searches.

Discover last-minute flight deals from Reagan-National to Hanoi. Data last updated October 25, 2026 and is based on user searches.

One-way flights from Reagan-National to HanoiSearch for one-way flight options from Reagan-National to Hanoi. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.

Search for one-way flight options from Reagan-National to Hanoi. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.

Find flight deals from Reagan-National to Hanoi

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Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Hanoi that are best for you.

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 October.

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.

Related info for your journey

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Reagan-National to Hanoi

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Hanoi by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Reagan-National to Hanoi by cabin class

Find flights from Reagan-National to Hanoi, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Hanoi

Explore flights to Hanoi departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.

Reagan-National and Hanoi flights

Browse other Reagan-National and Hanoi flight options. Last updated on October 25, 2026.

Other flights from Reagan-National

Browse through other flights departing from Reagan-National. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.

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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 October 25, 2026.

Best flights from Reagan-National to Hanoi
Discover carefully curated flight deals from Reagan-National to Hanoi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.

Last-minute flights from Reagan-National to Hanoi
Discover last-minute flight deals from Reagan-National to Hanoi. Data last updated October 25, 2026 and is based on user searches.

One-way flights from Reagan-National to Hanoi
Search for one-way flight options from Reagan-National to Hanoi. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.