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$539+ 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SGN
Jul 27 — Aug 31
Mon 7/27
Mon 8/3
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 June 27, 2026.

This American Airlines deal was found by Cheapflights users on 6/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:30 am
DCA
-
SGN
2 stops27h 30m
American Airlines
Tue 11/107:50 am
SGN
-
DCA
2 stops25h 10m
American Airlines
Deal found 6/26$1,156
This KAYAK deal was found by Cheapflights users on 6/22. 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 11/48:00 am
DCA
-
SGN
2 stops28h 15m
Multiple Airlines
Wed 11/187:50 am
SGN
-
DCA
2 stops26h 09m
Multiple Airlines
Deal found 6/22$1,170
This Ovago deal was found by Cheapflights users on 6/23. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:00 am
DCA
-
SGN
2 stops26h 45m
Multiple Airlines
Wed 11/187:50 am
SGN
-
DCA
2 stops26h 09m
Multiple Airlines
Deal found 6/23$1,171
This Delta deal was found by Cheapflights users on 6/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:40 am
DCA
-
SGN
2 stops27h 30m
Delta
Sat 11/78:00 am
SGN
-
DCA
2 stops25h 15m
Delta
Deal found 6/25$1,175
This Delta deal was found by Cheapflights users on 6/22. 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.
Mon 8/177:35 pm
DCA
-
SGN
2 stops40h 40m
Delta
Wed 9/27:30 am
SGN
-
DCA
2 stops24h 03m
Delta
Deal found 6/22$1,179
This Korean Air deal was found by Cheapflights users on 6/25. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:10 am
DCA
-
SGN
2 stops25h 00m
Korean Air
Sat 9/1211:45 pm
SGN
-
DCA
2 stops25h 25m
Korean Air
Deal found 6/25$1,181
This KAYAK deal was found by Cheapflights users on 6/23. 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.
Sun 9/63:30 pm
DCA
-
HAN
2 stops43h 45m
ANA
Sun 9/2011:35 pm
HAN
-
DCA
2 stops31h 34m
ANA
Deal found 6/23$1,184
This Delta deal was found by Cheapflights users on 6/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:45 pm
DCA
-
SGN
2 stops35h 50m
Delta
Sun 8/3011:45 pm
SGN
-
DCA
2 stops31h 48m
Delta
Deal found 6/26$1,188
This Korean Air deal was found by Cheapflights users on 6/22. 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.
Thu 9/1010:10 am
DCA
-
SGN
2 stops25h 00m
Korean Air
Mon 9/1411:45 pm
SGN
-
DCA
2 stops26h 08m
Korean Air
Deal found 6/22$1,194
This American Airlines deal was found by Cheapflights users on 6/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:59 am
DCA
-
SGN
2 stops27h 46m
American Airlines
Tue 9/811:15 pm
SGN
-
DCA
2 stops28h 14m
American Airlines
Deal found 6/24$1,196
This Korean Air deal was found by Cheapflights users on 6/24. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/179:00 am
DCA
-
SGN
2 stops26h 20m
Korean Air
Thu 2/258:00 am
SGN
-
DCA
2 stops46h 05m
Korean Air
Deal found 6/24$1,199
This oojo deal was found by Cheapflights users on 6/25. 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 8/126:10 am
DCA
-
SGN
2 stops24h 10m
Cathay Pacific
Wed 8/266:20 pm
SGN
-
DCA
2 stops40h 38m
Cathay Pacific
Deal found 6/25$1,204

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 June 27, 2026.

Round-trip from

$1,170
(KAYAK)

One-way from

$539
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,467
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. 17% potential increase in price ($251 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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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 June 27, 2026.
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

Cheapest round-trip

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Wed 9/16

2:00 pm-12:35 pm

2 stops35h 35m

Ho Chi Minh City

Wed 10/21

7:30 am-9:15 pm

2 stops24h 45m

$1,188

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Mon 8/17

9:39 am-10:10 pm

2 stops25h 31m

Ho Chi Minh City

Thu 8/27

7:30 am-9:45 pm

2 stops25h 15m

$1,188

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Wed 9/30

8:40 am-9:35 pm

2 stops25h 55m

Hanoi Noibai

Sun 10/25

11:05 pm-1:25 pm

2 stops25h 20m

$1,212

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Thu 11/26

6:00 am-9:50 pm

2 stops27h 50m

Ho Chi Minh City

Mon 2/22

11:05 pm-8:10 pm

2 stops33h 05m

$1,222

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Thu 11/26

6:00 am-9:50 pm

2 stops27h 50m

Ho Chi Minh City

Tue 2/23

11:05 pm-1:39 pm

2 stops26h 34m

$1,222

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Tue 11/10

6:00 am-9:50 pm

2 stops27h 50m

Ho Chi Minh City

Tue 11/17

7:30 am-8:10 pm

2 stops24h 40m

$1,223

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Thu 9/10

6:00 am-10:05 pm

3 stops29h 05m

Ho Chi Minh City

Mon 9/14

11:15 pm-8:09 pm

2 stops31h 54m

$1,226

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Tue 11/17

6:00 am-12:15 am

2 stops30h 15m

Ho Chi Minh City

Mon 11/30

7:30 am-11:45 am

2 stops40h 15m

$1,233

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Tue 10/27

8:00 am-9:50 pm

2 stops26h 50m

Ho Chi Minh City

Tue 11/10

6:00 am-8:56 pm

3 stops26h 56m

$1,236

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Wed 8/12

7:46 am-9:55 pm

2 stops27h 09m

Ho Chi Minh City

Wed 8/26

11:15 pm-4:04 pm

2 stops27h 49m

$1,237

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/22

Showing 1-10 of 59 resultsSorted by cheapest first
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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, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Vietnam (average of $970). Flying from Washington, D.C. Reagan-National Airport to Vietnam in May is currently the most expensive (average of $1,318). 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.

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 June 27, 2026.
Get a feel of what it's like to fly with Delta 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.
Delta
7.8
Good
8,451 reviews

Overall

7.8

Food

7.2

Crew

8.5

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,451 reviews
Delta
7.8
Good
8,451 reviews

Overall

7.8

Food

7.2

Crew

8.5

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,896 reviews
Delta
7.8
Good
8,451 reviews

Overall

7.8

Food

7.2

Crew

8.5

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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?

    Korean Air, Delta, and United Airlines can get you from Washington, D.C. Reagan-National Airport to Vietnam in just under 25h. Your travel time can differ by up to 2h 50m. 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 - 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, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Vietnam (average of $970). Flying from Washington, D.C. Reagan-National Airport to Vietnam in May is currently the most expensive (average of $1,318). 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

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Top 2 airlines flying from Reagan-National to Vietnam

Discover the top 2 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 June 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$985Average$1,183FlexibilityNo cancel feeOn-time69%
DeltaCheapest$1,094Average$1,275FlexibilityNo cancel feeOn-timeN/A

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