$426 Find Cheap Flights from Reagan Washington National Airport to Vietnam

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to Vietnam departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Cheap Flights from Reagan-National to Vietnam

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Ho Chi Minh City
Ho Chi Minh City2 stops$876
Ho Chi Minh City
Ho Chi Minh City2 stops$876

Book Cheap Reagan-National to Vietnam Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National to Vietnam that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Reagan-National to Vietnam

Thu, Sep 4 - Wed, Sep 17
Korean Air Logo
8:35 am - 9:35 pmDCA-HAN
26h 00m2 stops
Korean Air Logo
11:10 pm - 5:20 pmHAN-DCA
29h 10m2 stops
$855Korean Air
Find Deal
Tue, Sep 16 - Tue, Sep 30
Korean Air Logo
5:00 pm - 9:35 pmDCA-HAN
41h 35m2 stops
Korean Air Logo
11:10 pm - 3:03 pmHAN-DCA
26h 53m2 stops
$859Korean Air
Find Deal
Mon, Sep 22 - Mon, Oct 6
American Airlines Logo
6:45 am - 9:45 pmDCA-SGN
28h 00m2 stops
American Airlines Logo
8:20 am - 12:59 amSGN-DCA
27h 39m2 stops
$876American Airlines
Find Deal
Tue, Sep 23 - Tue, Sep 30
American Airlines Logo
6:45 am - 9:45 pmDCA-SGN
28h 00m2 stops
American Airlines Logo
8:00 am - 12:58 amSGN-DCA
27h 58m2 stops
$877American Airlines
Find Deal
Mon, Sep 15 - Mon, Sep 22
ANA Logo
8:30 am - 10:15 pmDCA-HAN
26h 45m2 stops
ANA Logo
11:35 pm - 9:03 pmHAN-DCA
32h 28m2 stops
$928ANA
Find Deal
Wed, Sep 17 - Mon, Sep 29
ANA Logo
8:30 am - 10:15 pmDCA-HAN
26h 45m2 stops
ANA Logo
11:35 pm - 9:03 pmHAN-DCA
32h 28m2 stops
$943ANA
Find Deal
Tue, Sep 16 - Wed, Oct 1
Cathay Pacific Logo
5:30 pm - 10:05 amDCA-SGN
29h 35m2 stops
Cathay Pacific Logo
11:05 am - 4:22 pmSGN-DCA
40h 17m2 stops
$973Cathay Pacific
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Wed, Oct 1 - Wed, Oct 29
Cathay Pacific Logo
10:49 am - 10:05 amDCA-SGN
36h 16m2 stops
Cathay Pacific Logo
7:15 am - 12:59 amSGN-DCA
28h 44m2 stops
$974Cathay Pacific
Find Deal
Thu, Sep 18 - Thu, Sep 25
United Airlines Logo
6:00 am - 12:15 amDCA-SGN
31h 15m2 stops
United Airlines Logo
7:00 am - 8:06 pmSGN-DCA
24h 06m2 stops
$977United Airlines
Find Deal
Thu, Sep 25 - Tue, Oct 28
United Airlines Logo
7:00 am - 9:55 pmDCA-SGN
27h 55m2 stops
United Airlines Logo
6:00 am - 10:09 pmSGN-DCA
27h 09m3 stops
$986United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Reagan-National to Vietnam flights

Get data-powered insights and trends into flights from Reagan-National to Vietnam to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Washington, D.C. Reagan-National Airport to Vietnam?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington, D.C. Reagan-National Airport to Vietnam were found on Korean Air ($855) and American Airlines ($876).

Good to know

Low seasonSeptember
Cheapest flight$426
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Reagan Washington National Airport to Ho Chi Minh City

FAQs - booking Vietnam flights

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport to Vietnam?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Reagan Washington National Airport to Vietnam.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National Airport to Vietnam?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Reagan Washington National Airport to Vietnam is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Reagan Washington National Airport to Vietnam?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Reagan Washington National Airport to Vietnam with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Reagan Washington National Airport to Vietnam?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Reagan Washington National Airport to Vietnam up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Vietnam?

    The cheapest time of day to fly to Vietnam is generally in the morning, when round-trip flights cost $1,088 on average. Morning departures are around 12% cheaper than evening flights, on average. The most expensive time of day to fly to Vietnam is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,242.

Reviews of the top 3 airlines serving from Reagan-National to Vietnam

 
Need help choosing which airline to fly with from Reagan-National to Vietnam? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1131 reviews
8.7Crew
8.1Food
8.3Comfort
8.2Entertainment
8.5Boarding
Airline reviews

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

8.0 ExcellentMatt, Aug 2025ATL - ICN
Read more Korean Air reviews

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I normally love Korean Air, but this trip was not great. We boarded the plan and were settling into our seats. My son and I use these leg swings and we used it on the trip over to Cambodia, but on the way back the flight attendant very rudely told us we could not use it and that it was against regulations. I asked to see the regulation, but never saw it. The food on this trip was horrible as well, Even my son's kids meal was disgusting so we didn't eat anything on the flight. Thankfully we brought snacks. Entertainment - what happened to the games?

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

Korean air has a little bit more seating space than Asiana air.

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

This flight was a superior flight in all regards. Extremely pleasant experience.

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

Not many people, so you can lay down on two seats

Just want to do a little more clean up so does not smell like urine.

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

very professional and very attentive to my Special Needs as I required a Wheel Chair and assistance to board

Crew was great. But a bit understaffed. The business class seat, etc were dated. But comfortable. Some legs had entertainment system from a decade ago. Selections were rather poor. Food was mediocre at best. Actually poor for business class standards. I liked the lounge in Hong Kong. Showers were great. Food was nice.

Everything was fine and I have no complaints or things to note.

The economy seats are much indeed roomier. Meals needs improvement.

flight delayed 45 mins - missed connection - 1 hr layover became 8 hr layover waiting for next flight -

Fast boarding flight on time boarded plane back to front instead of stupid zone groups like US airlines do...

Horrible airline. Missed my baggage and don’t want to reimburse for the basis items. Pathetic customer service

Food was hood for airline food with good poftion and variety in meals. Frequency of beverage service was very low and amount of soda with meals was inadequate.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

The flight was comfortable with the exit row and great service

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

Everything you need to know for your flight from Reagan-National to Vietnam

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