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

$521 is the cheapest one-way deal found within the past few days, from Korean Air. You may also be able to find cheap deals on Japan Airlines and Delta, with prices starting from $528 and $984, respectively.

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.

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).

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 - Da Nang 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 United Airlines.

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 35 days early can save you up to 34% on average compared to booking a flight this week. If booking 35 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 $1,167 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 $1,451 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 $1,252 on average during April, but can be found for as low as $799.

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.

$478+ Cheap Flights from Washington, D.C. Reagan-National Airport to Vietnam

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Cheap flight deals from Reagan-National to Vietnam

Round-trip from	$905 (oojo)
One-way from	$478 (Kiwi.com)
Popular in	December
Cheapest in	April
Average price	$996

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. 6% potential increase in price ($85 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($27 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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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 September 15, 2025.

Wed 9/248:30 amDCA - SGN

2 stops28h 45mANA

Wed 10/1511:15 pmSGN - DCA

2 stops26h 01mANA

Deal found 9/14

$944

Thu 11/67:30 amDCA - SGN

2 stops28h 45mANA

Mon 11/1711:05 pmSGN - DCA

2 stops32h 02mANA

Deal found 9/13

$954

Mon 10/277:45 amDCA - SGN

2 stops27h 40mDelta

Thu 12/48:00 amSGN - DCA

2 stops26h 14mDelta

Deal found 9/15

$965

Mon 11/178:40 pmDCA - HAN

2 stops37h 05mDelta

Tue 11/2511:05 pmHAN - DCA

2 stops35h 36mDelta

Deal found 9/13

$970

Thu 9/258:30 amDCA - SGN

2 stops26h 25mUnited Airlines

Tue 10/2111:15 pmSGN - DCA

2 stops32h 48mUnited Airlines

Deal found 9/15

$971

Tue 11/187:30 amDCA - SGN

2 stops28h 45mANA

Wed 2/1811:05 pmSGN - DCA

2 stops24h 54mANA

Deal found 9/15

$972

Mon 9/229:00 amDCA - SGN

2 stops28h 15mUnited Airlines

Tue 10/1411:15 pmSGN - DCA

2 stops34h 28mUnited Airlines

Deal found 9/14

$974

Sun 11/24:59 pmDCA - SGN

2 stops55h 51mDelta

Wed 11/128:00 amSGN - DCA

2 stops26h 41mDelta

Deal found 9/14

$975

Mon 9/298:25 amDCA - HAN

2 stops26h 10mKorean Air

Wed 10/2211:10 pmHAN - DCA

2 stops26h 50mKorean Air

Deal found 9/13

$976

Tue 10/289:59 amDCA - HAN

2 stops40h 31mMultiple Airlines

Mon 11/32:50 amHAN - DCA

2 stops29h 10mMultiple Airlines

Deal found 9/13

$977

Tue 10/219:00 amDCA - SGN

2 stops28h 15mUnited Airlines

Thu 11/67:30 amSGN - DCA

2 stops25h 08mUnited Airlines

Deal found 9/14

$977

Wed 10/297:00 amDCA - SGN

2 stops28h 55mUnited Airlines

Wed 11/511:05 pmSGN - DCA

2 stops24h 53mUnited Airlines

Deal found 9/14

$978

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 September 15, 2025.

Mon 11/178:40 pmDCA - HAN

2 stops37h 05mDelta

Tue 11/2511:05 pmHAN - DCA

2 stops36h 26mDelta

Deal found 9/13

$970

Thu 9/2510:30 amDCA - SGN

2 stops24h 25mUnited Airlines

Wed 10/1511:15 pmSGN - DCA

2 stops32h 48mUnited Airlines

Deal found 9/14

$971

Wed 10/298:59 amDCA - HAN

2 stops25h 46mKorean Air

Wed 11/511:05 pmHAN - DCA

2 stops25h 53mKorean Air

Deal found 9/14

$976

Wed 11/59:59 amDCA - DAD

2 stops42h 26mMultiple Airlines

Mon 11/175:35 pmDAD - DCA

2 stops35h 18mMultiple Airlines

Deal found 9/13

$1,086

Tue 10/216:59 pmDCA - DAD

2 stops26h 51mChina Airlines

Wed 10/2910:20 amDAD - DCA

2 stops42h 38mChina Airlines

Deal found 9/14

$1,147

Tue 10/76:59 pmDCA - DAD

2 stops29h 36mEVA Air

Sat 10/1812:55 pmDAD - DCA

2 stops43h 19mEVA Air

Deal found 9/14

$1,275

Wed 11/53:30 pmDCA - DAD

3 stops42h 00mEmirates

Mon 11/1711:30 pmDAD - DCA

3 stops33h 25mEmirates

Deal found 9/13

$1,602

Thu 9/257:00 amDCA - SGN

2 stops27h 55mUnited Airlines

Tue 10/1411:15 pmSGN - DCA

2 stops32h 48mUnited Airlines

Deal found 9/14

$971

Mon 9/298:25 amDCA - HAN

2 stops26h 10mKorean Air

Tue 10/2111:10 pmHAN - DCA

2 stops26h 50mKorean Air

Deal found 9/13

$976

Mon 11/176:10 amDCA - HAN

2 stops27h 35mDelta

Thu 11/2712:20 pmHAN - DCA

2 stops37h 13mDelta

Deal found 9/13

$977

Tue 10/219:00 amDCA - SGN

2 stops28h 15mUnited Airlines

Tue 11/1111:05 pmSGN - DCA

2 stops33h 33mUnited Airlines

Deal found 9/12

$974

Sun 11/164:55 pmDCA - HAN

2 stops54h 15mDelta

Wed 11/2612:20 pmHAN - DCA

2 stops22h 21mDelta

Deal found 9/14

$980

Last-minute flights from Reagan-National to Vietnam
Discover last-minute flight deals from Reagan-National to Vietnam. Data last updated September 15, 2025 and is based on user searches.

Mon 9/227:00 amDCA - SGN

2 stops30h 15mUnited Airlines

Wed 10/1511:15 pmSGN - DCA

2 stops26h 01mUnited Airlines

Deal found 9/14

$974

Wed 9/248:30 amDCA - SGN

2 stops28h 45mANA

Wed 10/1511:15 pmSGN - DCA

2 stops26h 01mANA

Deal found 9/14

$944

Thu 9/257:00 amDCA - SGN

2 stops27h 55mUnited Airlines

Tue 10/1411:15 pmSGN - DCA

2 stops32h 48mUnited Airlines

Deal found 9/14

$971

Thu 9/258:30 amDCA - SGN

2 stops26h 25mUnited Airlines

Sun 10/1911:15 pmSGN - DCA

2 stops52h 37mUnited Airlines

Deal found 9/15

$980

Mon 9/298:25 amDCA - HAN

2 stops26h 10mKorean Air

Tue 10/2111:10 pmHAN - DCA

2 stops26h 50mKorean Air

Deal found 9/13

$976

Tue 10/219:00 amDCA - SGN

2 stops28h 15mUnited Airlines

Thu 11/67:30 amSGN - DCA

2 stops25h 08mUnited Airlines

Deal found 9/14

$977

Tue 10/219:00 amDCA - SGN

2 stops28h 15mUnited Airlines

Tue 11/116:00 amSGN - DCA

3 stops28h 09mUnited Airlines

Deal found 9/14

$989

Wed 10/226:00 amDCA - SGN

2 stops28h 55mUnited Airlines

Mon 11/36:00 amSGN - DCA

2 stops22h 52mUnited Airlines

Deal found 9/14

$990

Mon 10/277:45 amDCA - SGN

2 stops27h 40mDelta

Thu 12/48:00 amSGN - DCA

2 stops26h 14mDelta

Deal found 9/15

$965

Tue 10/289:59 amDCA - HAN

2 stops40h 31mMultiple Airlines

Mon 11/32:50 amHAN - DCA

2 stops29h 10mMultiple Airlines

Deal found 9/13

$977

Wed 10/297:00 amDCA - SGN

2 stops28h 55mUnited Airlines

Wed 12/311:05 pmSGN - DCA

2 stops24h 53mUnited Airlines

Deal found 9/13

$978

Wed 10/296:00 amDCA - SGN

3 stops29h 55mUnited Airlines

Wed 11/56:00 amSGN - DCA

3 stops26h 45mUnited Airlines

Deal found 9/14

$985

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 September 15, 2025.

Tue 9/307:00 amDCA - SGN

3 stops38h 35mMultiple Airlines

Deal found 9/13

$478

Sun 9/218:59 amDCA - SGN

2 stops37h 41mMultiple Airlines

Deal found 9/14

$483

Sat 10/256:31 pmDCA - SGN

3 stops51h 09mMultiple Airlines

Deal found 9/14

$487

Tue 10/216:31 pmDCA - SGN

3 stops56h 59mMultiple Airlines

Deal found 9/15

$491

Sun 9/218:59 amDCA - SGN

2 stops44h 21mChina Airlines

Deal found 9/13

$497

Thu 11/278:00 amDCA - DAD

2 stops41h 30mMultiple Airlines

Deal found 9/13

$512

Thu 9/188:25 amDCA - HAN

2 stops39h 15mKorean Air

Deal found 9/15

$521

Sat 11/15:00 pmDCA - SGN

2 stops36h 50mMultiple Airlines

Deal found 9/14

$524

Mon 9/2210:45 pmDCA - SGN

2 stops43h 40mJapan Airlines

Deal found 9/15

$528

Tue 9/2310:45 pmDCA - SGN

2 stops43h 40mJapan Airlines

Deal found 9/15

$534

Fri 10/31:00 pmDCA - SGN

3 stops38h 30mMultiple Airlines

Deal found 9/13

$535

Wed 11/266:59 amDCA - HAN

2 stops40h 11mKorean Air

Deal found 9/15

$538

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

Mon 11/17

8:40 pm-9:45 pm

2 stops37h 05m

Hanoi Noibai

Tue 11/25

11:05 pm-11:31 pm

2 stops36h 26m

$970

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Thu 9/25

10:30 am-9:55 pm

2 stops24h 25m

Ho Chi Minh City

Wed 10/15

11:15 pm-9:03 pm

2 stops32h 48m

$971

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Thu 9/25

7:00 am-9:55 pm

2 stops27h 55m

Ho Chi Minh City

Tue 10/14

11:15 pm-9:03 pm

2 stops32h 48m

$971

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Tue 10/21

9:00 am-12:15 am

2 stops28h 15m

Ho Chi Minh City

Tue 11/11

11:05 pm-8:38 pm

2 stops33h 33m

$974

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Tue 9/23

7:25 am-12:15 am

2 stops29h 50m

Ho Chi Minh City

Wed 10/15

11:15 pm-2:16 pm

2 stops26h 01m

$974

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Wed 10/29

6:00 am-10:55 pm

3 stops29h 55m

Ho Chi Minh City

Wed 12/3

11:05 pm-4:56 pm

2 stops29h 51m

$974

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Mon 9/22

9:00 am-12:15 am

2 stops28h 15m

Ho Chi Minh City

Mon 10/20

11:15 pm-9:37 pm

2 stops33h 22m

$974

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Mon 10/6

9:00 am-12:15 am

2 stops28h 15m

Ho Chi Minh City

Mon 10/20

11:15 pm-9:37 pm

2 stops33h 22m

$974

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Tue 9/23

9:00 am-12:15 am

2 stops28h 15m

Ho Chi Minh City

Tue 10/14

11:15 pm-9:03 pm

2 stops32h 48m

$974

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Mon 9/22

9:00 am-12:15 am

2 stops28h 15m

Ho Chi Minh City

Tue 10/14

11:15 pm-10:43 pm

2 stops34h 28m

$974

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 53 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 month to book a flight from Washington, D.C. Reagan-National Airport to Vietnam?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Vietnam (average of $883). Flying from Washington, D.C. Reagan-National Airport to Vietnam in June is currently the most expensive (average of $1,426). 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 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.

Reviews of airlines servicing Vietnam

Get a feel of what it's like to fly with Korean Air, Japan Airlines, and Cathay Pacific from Washington, D.C. Reagan-National Airport to Vietnam by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Korean Air

8.4

Very good

1,139 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Japan Airlines

8.3

Very good

1,559 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Cathay Pacific

7.6

Good

993 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

United Airlines

7.4

Good

8,929 reviews

Korean Air

8.4

Very good

1,139 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Related info for your journey

How long is the flight from Washington, D.C. Reagan-National Airport to Vietnam?
Delta, United Airlines, and Korean Air can get you from Washington, D.C. Reagan-National Airport to Vietnam in just under 24h 25m. Your travel time can differ by up to 12h 40m. Airlines will cover a distance of 8990 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Vietnam one-way?
$521 is the cheapest one-way deal found within the past few days, from Korean Air. You may also be able to find cheap deals on Japan Airlines and Delta, with prices starting from $528 and $984, 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 - Da Nang 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, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Vietnam (average of $883). Flying from Washington, D.C. Reagan-National Airport to Vietnam in June is currently the most expensive (average of $1,426). 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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Alternative routes for Reagan-National to Vietnam

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Baltimore to Taiwan Taoyuan Intl flights

Reagan-National to Hong Kong flights

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Top 4 airlines flying from Reagan-National to Vietnam

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$893	Average$1,661	FlexibilityNo cancel fee	On-time69%
Cathay Pacific	Cheapest$1,078	Average$1,198	FlexibilityNo cancel fee	On-time72%
Japan Airlines	Cheapest$1,082	Average$2,209	FlexibilityNo cancel fee	On-time79%
Korean Air	Cheapest$1,447	Average$1,604	FlexibilityNo cancel fee	On-time81%

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$478+ 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 9/30. 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 Vietnam

Keep the following information in mind while searching for Reagan-National to Vietnam flight deals. Data was last updated September 15, 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 September 15, 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 September 15, 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 month to book a 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 September 15, 2025.

Reviews of airlines servicing Vietnam

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.

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

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 4 airlines flying from Reagan-National to Vietnam

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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 September 15, 2025.