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$488+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SGN
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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Cheap 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 December 26, 2025.

This United Airlines deal was found by Cheapflights users on 12/25. 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 12/315:59 pmDCA - SGN
2 stops40h 56mUnited Airlines
Tue 1/2011:05 pmSGN - DCA
3 stops50h 44mUnited Airlines
Deal found 12/25$978
This United Airlines deal was found by Cheapflights users on 12/23. 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 12/317:00 amDCA - SGN
2 stops26h 50mUnited Airlines
Sun 1/1811:05 pmSGN - DCA
2 stops34h 47mUnited Airlines
Deal found 12/23$1,064
This United Airlines deal was found by Cheapflights users on 12/26. 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 12/317:00 amDCA - SGN
2 stops26h 50mUnited Airlines
Mon 1/197:30 amSGN - DCA
2 stops41h 43mUnited Airlines
Deal found 12/26$1,167
This oojo deal was found by Cheapflights users on 12/25. 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 12/316:57 pmDCA - SGN
2 stops52h 38mEVA Air
Mon 1/1912:45 pmSGN - DCA
2 stops41h 11mEVA Air
Deal found 12/25$1,203
This oojo deal was found by Cheapflights users on 12/24. 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 12/316:57 pmDCA - SGN
2 stops52h 38mEVA Air
Fri 1/301:55 amSGN - DCA
2 stops30h 05mEVA Air
Deal found 12/24$1,261
This Delta deal was found by Cheapflights users on 12/23. 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 12/316:00 amDCA - SGN
2 stops29h 20mDelta
Fri 1/168:00 amSGN - DCA
2 stops26h 33mDelta
Deal found 12/23$1,390
This KAYAK deal was found by Cheapflights users on 12/23. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:57 pmDCA - SGN
2 stops39h 03mMultiple Airlines
Fri 1/161:55 amSGN - DCA
2 stops50h 14mMultiple Airlines
Deal found 12/23$1,405
This oojo deal was found by Cheapflights users on 12/25. 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.
Fri 12/269:59 amDCA - SGN
2 stops48h 01mEVA Air
Fri 1/161:55 amSGN - DCA
2 stops30h 05mEVA Air
Deal found 12/25$1,430
This KAYAK deal was found by Cheapflights users on 12/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/275:00 pmDCA - DAD
2 stops30h 40mMultiple Airlines
Mon 1/191:00 pmDAD - DCA
2 stops40h 56mMultiple Airlines
Deal found 12/26$1,599
This oojo deal was found by Cheapflights users on 12/24. 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 12/276:57 pmDCA - HAN
2 stops52h 38mEVA Air
Fri 1/1612:35 pmHAN - DCA
2 stops43h 25mEVA Air
Deal found 12/24$1,631
This Delta deal was found by Cheapflights users on 12/24. 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 12/286:00 amDCA - DAD
2 stops27h 30mDelta
Tue 12/3011:20 pmDAD - DCA
2 stops35h 36mDelta
Deal found 12/24$1,785
This Cathay Pacific deal was found by Cheapflights users on 12/24. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:50 pmDCA - HAN
2 stops29h 15mMultiple Airlines
Wed 12/3111:05 amHAN - DCA
2 stops23h 54mMultiple Airlines
Deal found 12/24$1,797

Find 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 December 26, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$958
(oojo)

One-way from

$488
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$1,307
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. 19% potential increase in price ($290 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 26, 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.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Thu 1/22

7:00 am-9:50 pm

2 stops26h 50m

Ho Chi Minh City

Thu 1/29

7:30 am-8:56 pm

2 stops25h 26m

$973

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Sun 2/15

7:59 pm-9:50 pm

2 stops37h 51m

Ho Chi Minh City

Tue 3/24

7:30 am-9:35 pm

2 stops25h 05m

$973

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Mon 2/16

6:00 am-9:50 pm

2 stops27h 50m

Ho Chi Minh City

Tue 3/24

7:30 am-9:35 pm

2 stops25h 05m

$973

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Thu 2/19

7:00 am-12:15 am

2 stops29h 15m

Ho Chi Minh City

Tue 3/24

7:30 am-9:35 pm

2 stops25h 05m

$976

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Thu 2/19

7:00 am-10:55 pm

2 stops27h 55m

Ho Chi Minh City

Wed 3/25

11:05 pm-9:35 pm

2 stops33h 30m

$978

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Tue 1/6

7:00 am-10:55 pm

2 stops27h 55m

Ho Chi Minh City

Sun 1/18

11:05 pm-9:52 pm

2 stops34h 47m

$978

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Tue 1/6

7:00 am-10:55 pm

2 stops27h 55m

Ho Chi Minh City

Mon 1/19

11:05 pm-8:59 pm

2 stops33h 54m

$978

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Thu 1/8

7:00 am-10:55 pm

2 stops27h 55m

Ho Chi Minh City

Mon 1/19

11:05 pm-8:59 pm

2 stops33h 54m

$978

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Thu 1/8

7:00 am-10:55 pm

2 stops27h 55m

Ho Chi Minh City

Sun 1/18

11:05 pm-9:52 pm

2 stops34h 47m

$978

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Sun 3/1

7:59 pm-10:55 pm

3 stops38h 56m

Ho Chi Minh City

Tue 3/10

6:00 am-8:59 pm

3 stops25h 59m

$985

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Showing 1-10 of 54 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 May is currently the most expensive (average of $1,252). 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 December 26, 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 evening, which can drop the price by up to 33% 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 December 26, 2025.
Get a feel of what it's like to fly with Japan Airlines, Delta, 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.
Japan Airlines
8.3
Very good
1,662 reviews

Boarding

8.4

Food

7.7

Comfort

8.2

Overall

8.3

Crew

8.7

Entertainment

7.8

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
1,662 reviews
Japan Airlines
8.3
Very good
1,662 reviews

Boarding

8.4

Food

7.7

Comfort

8.2

Overall

8.3

Crew

8.7

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

HNL - KIX

Local boy flight attendant was amazing. Super friendly and attentive.
Delta
7.9
Good
8,013 reviews
Japan Airlines
8.3
Very good
1,662 reviews

Boarding

8.4

Food

7.7

Comfort

8.2

Overall

8.3

Crew

8.7

Entertainment

7.8

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
1,105 reviews
Japan Airlines
8.3
Very good
1,662 reviews

Boarding

8.4

Food

7.7

Comfort

8.2

Overall

8.3

Crew

8.7

Entertainment

7.8

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
9,115 reviews
Japan Airlines
8.3
Very good
1,662 reviews

Boarding

8.4

Food

7.7

Comfort

8.2

Overall

8.3

Crew

8.7

Entertainment

7.8

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?

    United Airlines, EVA Air, 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 15h 15m. 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 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 - Da Nang or Washington, D.C. Reagan-National - Hanoi Noibai 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 May is currently the most expensive (average of $1,252). 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.
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Reagan-National to Narita flights
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Dulles Intl to New Delhi flights
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Dulles Intl to Ho Chi Minh City flights
Reagan-National to New Delhi flights
Reagan-National to Suvarnabhumi flights
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Reagan-National to Hyderabad flights
Baltimore to Hyderabad flights
Dulles Intl to Islamabad flights
Baltimore to Incheon Intl flights
Dulles Intl to Taiwan Taoyuan Intl flights
Dulles Intl to Mumbai flights
Dulles Intl to Don Mueang Intl flights
Dulles Intl to Ahmedabad flights
Dulles Intl to Gimpo Intl flights
Dulles Intl to Lahore flights
Dulles Intl to Bangalore flights
Reagan-National to Incheon Intl flights
Baltimore to Manila flights
Dulles Intl to Hongqiao Intl flights
Dulles Intl to Capital flights
Dulles Intl to Hong Kong flights
Reagan-National to Islamabad flights
Reagan-National to Bangalore flights
Reagan-National to Manila flights
Baltimore to Bangalore flights
Reagan-National to Mumbai flights
Reagan-National to Hongqiao Intl flights
Baltimore to Mumbai flights
Reagan-National to Taiwan Taoyuan Intl flights
Baltimore to Taiwan Taoyuan Intl flights
Reagan-National to Ahmedabad flights
Dulles Intl to Dhaka flights
Reagan-National to Ho Chi Minh City flights
Dulles Intl to Pu Dong flights
Baltimore to Ahmedabad flights
Reagan-National to Capital flights
Dulles Intl to Sung Shan flights
Baltimore to Ho Chi Minh City flights
Reagan-National to Hong Kong flights

Top 4 airlines flying from Reagan-National to Vietnam

Discover the top 4 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 December 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$974Average$1,198FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$985Average$1,183FlexibilityNo cancel feeOn-time69%
Japan AirlinesCheapest$1,082Average$1,310FlexibilityNo cancel feeOn-time79%
DeltaCheapest$1,094Average$1,275FlexibilityNo cancel feeOn-timeN/A

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