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$442+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SGN
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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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 October 16, 2025.

This Delta deal was found by Cheapflights users on 10/16. 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.
Sun 11/237:54 pmDCA - HAN
2 stops37h 51mDelta
Tue 12/912:20 pmHAN - DCA
2 stops23h 20mDelta
Deal found 10/16$858
This oojo deal was found by Cheapflights users on 10/15. 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 10/215:03 pmDCA - SGN
2 stops36h 17mChina Airlines
Sat 11/85:50 pmSGN - DCA
2 stops35h 03mChina Airlines
Deal found 10/15$900
This oojo deal was found by Cheapflights users on 10/15. 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 10/205:03 pmDCA - SGN
2 stops36h 17mChina Airlines
Tue 11/1811:00 amSGN - DCA
2 stops45h 00mChina Airlines
Deal found 10/15$937
This oojo deal was found by Cheapflights users on 10/14. 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.
Wed 10/159:59 amDCA - SGN
2 stops43h 21mChina Airlines
Mon 10/2010:50 amSGN - DCA
2 stops45h 24mChina Airlines
Deal found 10/14$955
This CrystalTravel deal was found by Cheapflights users on 10/15. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:30 amDCA - SGN
2 stops28h 45mANA
Mon 12/2211:05 pmSGN - DCA
2 stops26h 08mANA
Deal found 10/15$967
This oojo deal was found by Cheapflights users on 10/15. 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 11/15:00 pmDCA - SGN
2 stops36h 50mChina Airlines
Sat 12/1311:00 amSGN - DCA
2 stops42h 59mChina Airlines
Deal found 10/15$968
This FlightHub deal was found by Cheapflights users on 10/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/42:00 pmDCA - SGN
2 stops43h 50mANA
Wed 12/311:05 pmSGN - DCA
2 stops25h 54mANA
Deal found 10/15$969
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Mon 12/86:00 amDCA - SGN
2 stops27h 50mUnited Airlines
Mon 12/2211:05 pmSGN - DCA
2 stops24h 53mUnited Airlines
Deal found 10/15$971
This United Airlines deal was found by Cheapflights users on 10/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/257:00 amDCA - SGN
2 stops26h 50mUnited Airlines
Tue 12/167:30 amSGN - DCA
2 stops24h 05mUnited Airlines
Deal found 10/14$974
This Korean Air deal was found by Cheapflights users on 10/15. 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 11/186:59 amDCA - HAN
2 stops26h 46mKorean Air
Sun 12/711:05 pmHAN - DCA
2 stops25h 46mKorean Air
Deal found 10/15$976
This oojo deal was found by Cheapflights users on 10/14. 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.
Sat 11/15:00 pmDCA - SGN
2 stops36h 50mChina Airlines
Sat 11/811:00 amSGN - DCA
2 stops41h 53mChina Airlines
Deal found 10/14$976
This United Airlines deal was found by Cheapflights users on 10/16. 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 10/299:05 amDCA - SGN
2 stops28h 10mUnited Airlines
Thu 12/47:30 amSGN - DCA
2 stops24h 05mUnited Airlines
Deal found 10/16$977

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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$897
(oojo)

One-way from

$442
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$1,030
Provider with most accurate pricing for Washington, D.C. (WAS)-Ho Chi Minh City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Ho Chi Minh City flights.
Search Deals
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. 15% potential increase in price ($220 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Vietnam 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 October 16, 2025.
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

Reagan-National

Fly to

Vietnam

Route

Depart

Return

Price

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Sun 11/23

7:54 pm-9:45 pm

2 stops37h 51m

Hanoi Noibai

Tue 12/9

12:20 pm-11:40 pm

2 stops23h 20m

$858

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Mon 1/12

5:01 pm-10:00 am

2 stops28h 59m

Ho Chi Minh City

Tue 1/27

5:50 pm-4:09 pm

2 stops34h 19m

$959

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Tue 1/6

7:00 am-9:50 pm

2 stops26h 50m

Ho Chi Minh City

Sun 1/25

11:05 pm-11:58 am

2 stops24h 53m

$971

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Wed 10/29

6:00 am-9:50 pm

2 stops28h 50m

Ho Chi Minh City

Wed 12/3

11:05 pm-11:58 am

2 stops24h 53m

$971

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Mon 11/24

7:00 am-9:50 pm

2 stops26h 50m

Ho Chi Minh City

Sun 12/21

11:05 pm-11:58 am

2 stops24h 53m

$971

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Mon 1/12

7:00 am-9:50 pm

2 stops26h 50m

Ho Chi Minh City

Sun 1/25

11:05 pm-11:58 am

2 stops24h 53m

$971

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Mon 12/8

6:00 am-9:50 pm

2 stops27h 50m

Ho Chi Minh City

Mon 12/22

11:05 pm-11:59 pm

2 stops36h 54m

$971

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Wed 11/26

6:00 am-9:50 pm

2 stops27h 50m

Ho Chi Minh City

Thu 12/18

7:30 am-7:32 pm

2 stops24h 02m

$974

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Wed 11/26

7:00 am-9:50 pm

2 stops26h 50m

Ho Chi Minh City

Tue 12/16

7:30 am-7:35 pm

2 stops24h 05m

$974

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Mon 10/27

6:00 am-9:50 pm

2 stops28h 50m

Ho Chi Minh City

Thu 12/4

7:30 am-7:35 pm

2 stops24h 05m

$974

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Showing 1-10 of 55 results
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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, July is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Vietnam (average of $574). Flying from Washington, D.C. Reagan-National Airport to Vietnam in November is currently the most expensive (average of $2,168). 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?

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 October 16, 2025.

When flying from Washington, D.C. Reagan-National Airport to Vietnam, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 30% versus a flight at noon.

Reviews of airlines servicing Vietnam

Get insights into the airlines that provide service to Vietnam. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Vietnam. Reviews last updated October 16, 2025.
Get a feel of what it's like to fly with Japan Airlines, Cathay Pacific, and United Airlines 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.
Japan Airlines
8.3
Very good
1,579 reviews

Crew

8.7

Comfort

8.2

Entertainment

7.8

Food

7.7

Overall

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.
Japan Airlines
8.3
Very good
1,579 reviews
Japan Airlines
8.3
Very good
1,579 reviews

Crew

8.7

Comfort

8.2

Entertainment

7.8

Food

7.7

Overall

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.
Cathay Pacific
7.6
Good
1,028 reviews
Japan Airlines
8.3
Very good
1,579 reviews

Crew

8.7

Comfort

8.2

Entertainment

7.8

Food

7.7

Overall

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.
United Airlines
7.4
Good
8,979 reviews
Japan Airlines
8.3
Very good
1,579 reviews

Crew

8.7

Comfort

8.2

Entertainment

7.8

Food

7.7

Overall

8.3

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.

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?

    Delta, United Airlines, and Cathay Pacific can get you from Washington, D.C. Reagan-National Airport to Vietnam in just under 26h 50m. Your travel time can differ by up to 11h 01m. 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?

    $527 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 Korean Air and Delta, with prices starting from $538 and $635, 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, July is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Vietnam (average of $574). Flying from Washington, D.C. Reagan-National Airport to Vietnam in November is currently the most expensive (average of $2,168). 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

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Haneda flights
Dulles Intl to Suvarnabhumi flights
Dulles Intl to Narita flights
Reagan-National to Suvarnabhumi flights
Reagan-National to Narita flights
Reagan-National to Haneda flights
Baltimore to Suvarnabhumi flights
Baltimore to Narita flights
Dulles Intl to Hyderabad flights
Baltimore to Haneda flights
Dulles Intl to New Delhi flights
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Baltimore to Hyderabad flights
Reagan-National to Hyderabad flights
Dulles Intl to Ho Chi Minh City flights
Dulles Intl to Mumbai flights
Reagan-National to New Delhi flights
Dulles Intl to Manila flights
Dulles Intl to Bangalore flights
Baltimore to New Delhi flights
Reagan-National to Bangalore flights
Reagan-National to Manila flights
Dulles Intl to Don Mueang Intl flights
Baltimore to Manila flights
Baltimore to Bangalore flights
Reagan-National to Mumbai flights
Dulles Intl to Ahmedabad flights
Dulles Intl to Lahore flights
Reagan-National to Ahmedabad flights
Baltimore to Mumbai flights
Reagan-National to Ho Chi Minh City flights
Baltimore to Ho Chi Minh City flights
Dulles Intl to Taiwan Taoyuan Intl flights
Dulles Intl to Hongqiao Intl flights
Dulles Intl to Chennai flights
Reagan-National to Incheon Intl flights
Baltimore to Ahmedabad flights
Baltimore to Incheon Intl flights
Dulles Intl to Islamabad flights
Dulles Intl to Dhaka flights
Dulles Intl to Gimpo Intl flights
Dulles Intl to Hong Kong flights
Reagan-National to Chennai flights
Dulles Intl to Karachi flights
Reagan-National to Lahore flights
Baltimore to Chennai flights
Reagan-National to Hongqiao Intl flights
Reagan-National to Hong Kong flights
Dulles Intl to Pu Dong flights
Reagan-National to Taiwan Taoyuan Intl flights

Top 3 airlines flying from Reagan-National to Vietnam

Discover the top 3 airlines that operate flights from Reagan-National to Vietnam. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$893Average$1,396FlexibilityNo cancel feeOn-time69%
Cathay PacificCheapest$1,078Average$1,198FlexibilityNo cancel feeOn-time72%
Japan AirlinesCheapest$1,082Average$2,209FlexibilityNo cancel feeOn-time79%

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