What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Vietnam one-way?

$531 is the cheapest one-way deal found within the past few days, from Japan Airlines. You may also be able to find cheap deals on Delta and ANA, with prices starting from $535 and $537, respectively.

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

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Vietnam (average of $920). Flying from Washington, D.C. Reagan-National Airport to Vietnam in June is currently the most expensive (average of $1,475). 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.

What are the most popular routes from Washington, D.C. Reagan-National Airport to Vietnam?

When deciding which route to take from Washington, D.C. Reagan-National Airport to Vietnam consider Washington, D.C. Reagan-National - Ho Chi Minh City, Washington, D.C. Reagan-National - Hanoi Noibai or Washington, D.C. Reagan-National - Nha Trang Cam Ranh as they are the most popular.

What are the most popular airlines that fly from Washington, D.C. Reagan-National Airport to Vietnam?

Before booking your flight from Washington, D.C. Reagan-National Airport to Vietnam check out the most popular airlines for this route: Cathay Pacific, Japan Airlines or Korean Air.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to Vietnam?

Users have found that booking a flight from Washington, D.C. Reagan-National Airport to Vietnam at least 48 days early can save you up to 56% on average compared to booking a flight this week. If booking 48 days before your flight isn’t an option for you, users have found flights from Washington, D.C. Reagan-National Airport to Vietnam for as little as $1,374 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,478 for flights departing within the next 3 days.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Vietnam?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, April can be a great choice for travel to Vietnam. Flights to Vietnam from Washington, D.C. Reagan-National Airport in April are about $1,363 on average during April, but can be found for as low as $790.

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

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

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

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

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

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

$1,055+ Flights from Washington, D.C. Reagan-National Airport to Vietnam

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Reagan-National to Vietnam 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 Vietnam

Round-trip from	$983 (United Airlines)
One-way from	$531 (FlightHub)
Popular in	December
Cheapest in	April
Average price	$1,587

From Washington, D.C. Reagan-National to Vietnam

Search Deals

One-way flight from Washington, D.C. Reagan-National to Vietnam

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($128 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from Reagan-National to Vietnam

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

Tue 9/239:00 amDCA - HAN

2 stops26h 15mUnited Airlines

Wed 10/111:35 pmHAN - DCA

2 stops32h 28mUnited Airlines

Deal found 6/12

$983

Mon 9/13:30 pmDCA - DAD

2 stops34h 10mMultiple Airlines

Wed 10/111:50 pmDAD - DCA

2 stops32h 13mMultiple Airlines

Deal found 6/10

$993

Sun 9/148:30 amDCA - SGN

2 stops28h 45mANA

Sun 9/2111:15 pmSGN - DCA

2 stops26h 01mANA

Deal found 6/10

$1,005

Fri 9/266:10 amDCA - SGN

2 stops28h 55mDelta

Sun 10/511:45 pmSGN - DCA

2 stops33h 31mDelta

Deal found 6/10

$1,006

Fri 10/316:05 amDCA - SGN

2 stops30h 15mKorean Air

Tue 12/911:40 pmSGN - DCA

2 stops25h 42mKorean Air

Deal found 6/11

$1,011

Tue 12/302:00 pmDCA - HAN

2 stops45h 05mANA

Wed 2/1812:25 amHAN - DCA

2 stops47h 20mANA

Deal found 6/11

$1,014

Wed 9/247:00 amDCA - SGN

2 stops27h 55mUnited Airlines

Fri 10/37:00 amSGN - DCA

2 stops25h 51mUnited Airlines

Deal found 6/10

$1,014

Wed 11/196:05 amDCA - HAN

2 stops41h 05mKorean Air

Mon 12/111:00 pmHAN - DCA

2 stops34h 14mKorean Air

Deal found 6/10

$1,026

Sun 8/316:59 pmDCA - SGN

2 stops34h 21mChina Airlines

Sun 9/215:30 pmSGN - DCA

2 stops35h 29mChina Airlines

Deal found 6/10

$1,030

Mon 10/205:03 pmDCA - DAD

2 stops28h 47mChina Airlines

Mon 11/35:35 pmDAD - DCA

2 stops35h 24mChina Airlines

Deal found 6/10

$1,031

Wed 8/136:58 pmDCA - HAN

2 stops34h 52mChina Airlines

Sat 8/305:50 pmHAN - DCA

2 stops35h 09mChina Airlines

Deal found 6/12

$1,036

Sun 8/315:06 pmDCA - SGN

2 stops31h 34mEVA Air

Mon 9/221:50 amSGN - DCA

2 stops49h 59mEVA Air

Deal found 6/11

$1,071

Best flights from Reagan-National to Vietnam
Discover carefully curated flight deals from Reagan-National to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Tue 9/239:00 amDCA - HAN

2 stops26h 15mUnited Airlines

Wed 10/111:35 pmHAN - DCA

2 stops32h 28mUnited Airlines

Deal found 6/12

$983

Mon 9/13:30 pmDCA - DAD

2 stops34h 10mMultiple Airlines

Wed 10/111:50 pmDAD - DCA

2 stops32h 13mMultiple Airlines

Deal found 6/10

$993

Sat 8/21:41 pmDCA - SGN

2 stops35h 54mDelta

Mon 10/272:05 pmSGN - DCA

2 stops40h 15mDelta

Deal found 6/11

$1,006

Tue 9/26:59 pmDCA - SGN

2 stops34h 21mChina Airlines

Wed 10/110:50 amSGN - DCA

2 stops45h 09mChina Airlines

Deal found 6/10

$1,008

Sun 9/73:30 pmDCA - SGN

2 stops43h 25mANA

Mon 9/2211:15 pmSGN - DCA

2 stops27h 36mANA

Deal found 6/11

$1,015

Wed 11/196:05 amDCA - HAN

2 stops41h 05mKorean Air

Mon 12/111:00 pmHAN - DCA

2 stops34h 14mKorean Air

Deal found 6/10

$1,026

Sun 8/315:06 pmDCA - SGN

2 stops29h 49mEVA Air

Mon 9/221:50 amSGN - DCA

2 stops49h 59mEVA Air

Deal found 6/12

$1,071

Tue 6/179:59 amDCA - SGN

2 stops25h 01mJapan Airlines

Tue 8/2611:05 pmSGN - DCA

2 stops26h 27mJapan Airlines

Deal found 6/11

$1,129

Sun 7/66:45 amDCA - SGN

2 stops28h 00mAmerican Airlines

Wed 8/2711:05 pmSGN - DCA

2 stops26h 27mAmerican Airlines

Deal found 6/11

$1,139

Tue 8/268:59 amDCA - SGN

3 stops38h 56mSingapore Airlines

Tue 9/303:55 pmSGN - DCA

2 stops40h 04mSingapore Airlines

Deal found 6/11

$1,147

Mon 8/186:30 amDCA - SGN

2 stops26h 55mCathay Pacific

Mon 9/1511:05 amSGN - DCA

2 stops25h 10mCathay Pacific

Deal found 6/10

$1,194

Tue 9/95:30 pmDCA - SGN

2 stops28h 05mPhilippine Airlines

Fri 9/263:35 pmSGN - DCA

2 stops40h 25mPhilippine Airlines

Deal found 6/11

$1,467

Last-minute flights from Reagan-National to Vietnam
Discover last-minute flight deals from Reagan-National to Vietnam. Data last updated June 12, 2025 and is based on user searches.

Tue 6/179:59 amDCA - SGN

2 stops25h 01mJapan Airlines

Tue 8/2611:05 pmSGN - DCA

2 stops26h 27mJapan Airlines

Deal found 6/11

$1,129

Tue 6/179:59 amDCA - HAN

2 stops24h 51mJapan Airlines

Tue 6/2411:20 pmHAN - DCA

2 stops34h 47mJapan Airlines

Deal found 6/9

$1,200

Tue 6/176:58 pmDCA - SGN

2 stops34h 22mChina Airlines

Sat 8/305:30 pmSGN - DCA

2 stops35h 29mChina Airlines

Deal found 6/11

$1,578

Tue 6/177:35 pmDCA - HAN

2 stops39h 00mKorean Air

Sat 6/2811:10 pmHAN - DCA

2 stops33h 50mKorean Air

Deal found 6/10

$1,626

Tue 6/179:59 amDCA - HAN

3 stops44h 36mSingapore Airlines

Thu 6/2612:40 pmHAN - DCA

2 stops44h 02mSingapore Airlines

Deal found 6/9

$2,728

Wed 6/186:55 amDCA - HAN

2 stops27h 55mAmerican Airlines

Tue 7/111:20 pmHAN - DCA

2 stops33h 40mAmerican Airlines

Deal found 6/11

$1,158

Wed 6/187:00 amDCA - HAN

2 stops28h 15mUnited Airlines

Tue 6/2411:35 pmHAN - DCA

2 stops32h 37mUnited Airlines

Deal found 6/10

$1,183

Thu 6/196:58 pmDCA - SGN

2 stops40h 02mEVA Air

Sun 8/1712:50 pmSGN - DCA

2 stops40h 08mEVA Air

Deal found 6/11

$1,638

Thu 6/196:49 amDCA - HAN

2 stops28h 01mMultiple Airlines

Mon 6/301:45 amHAN - DCA

2 stops29h 44mMultiple Airlines

Deal found 6/10

$2,018

Fri 6/206:10 amDCA - HAN

2 stops28h 25mDelta

Mon 6/2311:10 pmHAN - DCA

2 stops35h 36mDelta

Deal found 6/10

$1,261

Sat 6/2112:31 pmDCA - SGN

2 stops34h 34mCathay Pacific

Sat 8/3011:05 amSGN - DCA

2 stops25h 11mCathay Pacific

Deal found 6/11

$1,758

Sun 6/228:20 amDCA - SGN

2 stops34h 05mMultiple Airlines

Fri 7/41:50 amSGN - DCA

2 stops30h 52mMultiple Airlines

Deal found 6/10

$1,636

One-way flights from Reagan-National to Vietnam
Search for one-way flight options from Reagan-National to Vietnam. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Tue 7/89:29 amDCA - HAN

2 stops25h 21mJapan Airlines

Deal found 6/10

$531

Wed 8/136:00 amDCA - HAN

2 stops28h 35mDelta

Deal found 6/10

$535

Mon 7/288:30 amDCA - SGN

2 stops28h 45mANA

Deal found 6/11

$537

Tue 7/298:30 amDCA - SGN

2 stops26h 25mUnited Airlines

Deal found 6/11

$538

Sun 8/317:59 pmDCA - HAN

2 stops39h 16mUnited Airlines

Deal found 6/9

$541

Thu 8/79:59 amDCA - SGN

2 stops24h 46mAmerican Airlines

Deal found 6/11

$541

Tue 7/18:45 amDCA - HAN

2 stops26h 05mAmerican Airlines

Deal found 6/10

$565

Thu 8/76:59 amDCA - SGN

2 stops42h 36mKorean Air

Deal found 6/12

$575

Wed 8/206:59 pmDCA - DAD

2 stops34h 36mChina Airlines

Deal found 6/11

$578

Fri 7/1110:08 pmDCA - SGN

2 stops44h 17mJapan Airlines

Deal found 6/11

$578

Tue 8/197:59 amDCA - DAD

2 stops26h 06mKorean Air

Deal found 6/11

$638

Tue 9/28:59 amDCA - SGN

3 stops38h 56mSingapore Airlines

Deal found 6/11

$717

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Tue 9/23

9:00 am-10:15 pm

2 stops26h 15m

Hanoi Noibai

Wed 10/1

11:35 pm-9:03 pm

2 stops32h 28m

$983

Washington, D.C.Da Nang

DCA - DAD

DCADAD

Washington, D.C. Reagan-National

Mon 9/1

3:30 pm-12:40 pm

2 stops34h 10m

Da Nang

Wed 10/1

11:50 pm-9:03 pm

2 stops32h 13m

$993

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Sun 9/14

8:30 am-12:15 am

2 stops28h 45m

Ho Chi Minh City

Sun 9/21

11:15 pm-2:16 pm

2 stops26h 01m

$1,005

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Fri 9/26

6:10 am-10:05 pm

2 stops28h 55m

Ho Chi Minh City

Sun 10/5

11:45 pm-10:16 pm

2 stops33h 31m

$1,006

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Fri 10/31

8:20 am-11:20 pm

2 stops28h 00m

Ho Chi Minh City

Tue 11/11

11:40 pm-1:22 pm

2 stops25h 42m

$1,011

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Wed 9/24

7:00 am-9:55 pm

2 stops27h 55m

Ho Chi Minh City

Sat 10/4

7:00 am-8:36 pm

2 stops24h 36m

$1,014

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Wed 11/19

6:05 am-11:10 am

2 stops41h 05m

Hanoi Noibai

Mon 12/1

11:00 pm-9:14 pm

2 stops34h 14m

$1,026

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Sun 8/31

6:59 pm-4:20 pm

2 stops34h 21m

Ho Chi Minh City

Sun 9/21

5:30 pm-5:59 pm

2 stops35h 29m

$1,030

Washington, D.C.Da Nang

DCA - DAD

DCADAD

Washington, D.C. Reagan-National

Mon 10/20

5:03 pm-8:50 am

2 stops28h 47m

Da Nang

Mon 11/3

5:35 pm-4:59 pm

2 stops35h 24m

$1,031

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Wed 8/13

6:58 pm-4:50 pm

2 stops34h 52m

Hanoi Noibai

Sat 8/30

5:50 pm-5:59 pm

2 stops35h 09m

$1,036

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 52 results

...

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

Have a flexible travel schedule? Discover the best time to fly to Vietnam 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Vietnam

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to Vietnam as you normally would.

Rainfall in Vietnam by month

In terms of precipitation, rainfall in Vietnam ranges from 0.0 - 13.4 inches per month. September is typically the wettest month, when rainfall can reach 13.4 in. February is typically the driest time to visit Vietnam when rainfall is around 0.0 in.

Temperature in Vietnam by month

If weather is an important factor for your trip to Vietnam, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Vietnam

To help decide which airline to fly from Washington, D.C. to Vietnam, see what other customers have to say about EVA Air, Korean Air and Japan Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

EVA Air

8.4

Very good

1,202 reviews

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Korean Air

8.4

Very good

1,088 reviews

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Japan Airlines

8.3

Very good

1,489 reviews

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

China Airlines

8.3

Very good

738 reviews

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

ANA

8.3

Very good

882 reviews

EVA Air

8.4

Very good

1,202 reviews

Reviews

1 / 20

10.0

Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Vietnam one-way?
$531 is the cheapest one-way deal found within the past few days, from Japan Airlines. You may also be able to find cheap deals on Delta and ANA, with prices starting from $535 and $537, respectively.
What are the most popular routes from Washington, D.C. Reagan-National Airport to Vietnam?
When deciding which route to take from Washington, D.C. Reagan-National Airport to Vietnam consider Washington, D.C. Reagan-National - Ho Chi Minh City, Washington, D.C. Reagan-National - Hanoi Noibai or Washington, D.C. Reagan-National - Nha Trang Cam Ranh as they are the most popular.
Can I find deals for flights from Reagan-National to Vietnam that include hotel bookings?
Yes. In addition to deals on Reagan-National to Vietnam flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to Vietnam?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Vietnam.
Can I find deals for business class flights from Reagan-National to Vietnam?
Yes. Cheapflights offers flight deals from Reagan-National to Vietnam 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 Vietnam?
Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Vietnam (average of $920). Flying from Washington, D.C. Reagan-National Airport to Vietnam in June is currently the most expensive (average of $1,475). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Reagan-National to Vietnam

Dulles Intl to Haneda flights

Dulles Intl to Narita flights

Dulles Intl to Suvarnabhumi flights

Reagan-National to Narita flights

Reagan-National to Haneda flights

Baltimore to Haneda flights

Baltimore to Narita flights

Dulles Intl to Incheon Intl flights

Dulles Intl to Hyderabad flights

Reagan-National to Suvarnabhumi flights

Baltimore to Suvarnabhumi flights

Reagan-National to Hyderabad flights

Baltimore to Hyderabad flights

Dulles Intl to Ho Chi Minh City flights

Dulles Intl to Taiwan Taoyuan Intl flights

Dulles Intl to Manila flights

Dulles Intl to Mumbai flights

Reagan-National to New Delhi flights

Dulles Intl to New Delhi flights

Baltimore to New Delhi flights

Dulles Intl to Bangalore flights

Reagan-National to Manila flights

Baltimore to Taiwan Taoyuan Intl flights

Dulles Intl to Hongqiao Intl flights

Reagan-National to Taiwan Taoyuan Intl flights

Baltimore to Incheon Intl flights

Reagan-National to Incheon Intl flights

Dulles Intl to Denpasar flights

Baltimore to Manila flights

Reagan-National to Bangalore flights

Reagan-National to Ho Chi Minh City flights

Dulles Intl to Gimpo Intl flights

Baltimore to Bangalore flights

Reagan-National to Denpasar flights

Baltimore to Denpasar flights

Dulles Intl to Sung Shan flights

Dulles Intl to Ahmedabad flights

Baltimore to Ho Chi Minh City flights

Baltimore to Mumbai flights

Dulles Intl to Chennai flights

Dulles Intl to Kathmandu flights

Reagan-National to Mumbai flights

Dulles Intl to Lahore flights

Dulles Intl to Capital flights

Dulles Intl to Hong Kong flights

Reagan-National to Kathmandu flights

Reagan-National to Hongqiao Intl flights

Dulles Intl to Islamabad flights

Baltimore to Kathmandu flights

Dulles Intl to Pu Dong flights

Top 3 airlines flying from Reagan-National to Vietnam

Airline	Cheapest	Average	Flexibility	On-time
Japan Airlines	Cheapest$1,082	Average$2,253	FlexibilityNo cancel fee	On-time79%
Cathay Pacific	Cheapest$1,088	Average$1,198	FlexibilityNo cancel fee	On-time72%
Korean Air	Cheapest$1,447	Average$1,604	FlexibilityNo cancel fee	On-time81%

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.

$531+ Cheap flights from Reagan-National (DCA) to Vietnam

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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Vietnam with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Reagan-National to Vietnam

Keep the following information in mind while searching for Reagan-National to Vietnam flight deals. Data was last updated June 12, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Reagan-National to Vietnam

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

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

Cheapflights Fare Finder

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

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

Have a flexible travel schedule? Discover the best time to fly to Vietnam from Reagan-National with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Vietnam

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

Find hourly flight availability from Reagan-National to Vietnam. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Rainfall in Vietnam by month

Plan your trip to Vietnam by taking into account the average rainfall totals by month.

Temperature in Vietnam by month

Plan your trip to Vietnam by taking into account the average temperature totals by month.

Reviews of airlines servicing Vietnam

To help decide which airline to fly from Washington, D.C. to Vietnam, see what other customers have to say about EVA Air, Korean Air and Japan Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Vietnam one-way?

What are the most popular routes from Washington, D.C. Reagan-National Airport to Vietnam?

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

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

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

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

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.

Alternative routes for Reagan-National to Vietnam

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

Top 3 airlines flying from Reagan-National to Vietnam

100% Free

Book with Flexibility

Travel Smart

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