$446 Find Cheap Flights from Washington Dulles 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 Dulles Intl to Vietnam departing on 2/2. 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, 0 bags

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Cheap Flights from Dulles Intl to Vietnam

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Hanoi
Hanoi3 stops$1,159
Da Nang
Da Nang2 stops$973
Phu Quoc
Phu Quoc2 stops$1,104
Nha Trang
Nha Trang2 stops$1,070
Hanoi
Hanoi3 stops$1,159
Da Nang
Da Nang2 stops$973
Phu Quoc
Phu Quoc2 stops$1,104
Nha Trang
Nha Trang2 stops$1,070

Book Cheap Dulles Intl 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 Dulles Intl 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 Dulles Intl to Vietnam

Mon, Feb 16 - Wed, Mar 4
Qatar Airways Logo
8:05 pm - 7:15 am
IAD
-
SGN
23h 10m1 stop
Qatar Airways Logo
8:55 am - 3:55 pm
SGN
-
IAD
43h 00m1 stop
$954Qatar Airways
Fri, Jan 23 - Tue, Mar 10
Qatar Airways Logo
8:05 pm - 7:15 am
IAD
-
SGN
23h 10m1 stop
Qatar Airways Logo
8:55 am - 4:55 pm
SGN
-
IAD
43h 00m1 stop
$955Qatar Airways
Tue, Apr 7 - Tue, Apr 28
Turkish Airlines Logo
9:40 pm - 4:10 pm
IAD
-
SGN
31h 30m1 stop
Turkish Airlines Logo
10:05 pm - 7:45 pm
SGN
-
IAD
32h 40m1 stop
$956Turkish Airlines
Sat, Jan 17 - Sun, Mar 8
Qatar Airways Logo
8:05 pm - 7:15 am
IAD
-
SGN
23h 10m1 stop
Qatar Airways Logo
8:55 am - 3:55 pm
SGN
-
IAD
43h 00m1 stop
$957Qatar Airways
Mon, Jan 12 - Mon, May 11
United Airlines Logo
10:05 pm - 10:55 pm
IAD
-
SGN
36h 50m2 stops
United Airlines Logo
11:15 pm - 10:05 am
SGN
-
IAD
21h 50m1 stop
$960United Airlines
Tue, Jan 27 - Mon, Feb 2
United Airlines Logo
8:29 am - 12:15 am
IAD
-
SGN
27h 46m2 stops
United Airlines Logo
11:05 pm - 9:10 am
SGN
-
IAD
22h 05m1 stop
$963United Airlines
Tue, Jan 13 - Thu, Jan 22
Delta Logo
6:15 pm - 10:25 pm
IAD
-
SGN
40h 10m2 stops
Delta Logo
8:00 am - 11:57 pm
SGN
-
IAD
27h 57m2 stops
$965Delta
Fri, Jan 16 - Sat, Jan 24
Turkish Airlines Logo
1:30 pm - 3:25 pm
IAD
-
HAN
37h 55m1 stop
Turkish Airlines Logo
10:55 pm - 11:45 am
HAN
-
IAD
24h 50m1 stop
$1,181Turkish Airlines
Sun, Mar 29 - Sat, Apr 11
Delta Logo
1:15 pm - 10:40 am
IAD
-
HAN
34h 25m1 stop
Delta Logo
11:10 pm - 8:54 pm
HAN
-
IAD
32h 44m2 stops
$1,185Delta
Wed, Jan 21 - Fri, Feb 13
Korean Air Logo
11:50 am - 11:40 pm
IAD
-
CXR
23h 50m1 stop
Korean Air Logo
1:35 am - 9:50 am
CXR
-
IAD
20h 15m1 stop
$1,235Korean Air
Booking Insights

KAYAK's insights & trends for Dulles Intl to Vietnam flights

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

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Vietnam?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Vietnam, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Vietnam is April, when tickets cost $979 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,616 and $1,584 respectively.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Vietnam?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Vietnam clicked on KAYAK for each day over the last 12 months.

When flying from Washington Dulles Airport to Vietnam, you should consider leaving on a Tuesday and avoid Saturdays if you are looking for the best rates. For your return to Washington Dulles Airport, you’ll find the best rates on Thursdays and the most expensive ones on Fridays.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Vietnam?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Vietnam, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Vietnam, you should book around 5 weeks before departure, which saves you about 9% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonMay
Cheapest flight$446
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Washington, D.C. to Da Nang

FAQs - booking Vietnam flights

  • Does IAD feature a USO lounge?

    Every day, all veterans are honored at Washington Dulles International Airport. The management sincerely hopes that you will take the opportunity to stop by the acclaimed USO lounge. The lounge is open to members of the National Guard, Reserve, Active Duty Military, and their families for free. Other passengers can also explore the lounge, although you will have to pay for the services. The lounge features excellent amenities, including video games, comfortable seats and washrooms.

  • Are there pet relief areas at Washington Dulles Airport?

    Washington Dulles Airport is a pet-friendly facility that features about four pet relief zones that passengers flying out through the airport with their furry companions can utilize. These pet relief areas are located inside the concourses in the post-security region and before security outside the terminals. The best part is that they are equipped with sinks, disposal waste bags and fire hydrants to keep the area clean after use. So, you don’t have to worry about carrying something to clean up after your pet.

  • Do Vietnam airports offer services for passengers with limited mobility?

    If you are traveling with a companion with limited mobility into Vietnam, you can have access to accessibility services upon request. The airports offer wheelchair services and extra assistance. Nonetheless, they are equipped with wheelchair-accessible restrooms, parking lots and shuttles. Therefore, if you want to access these services, ensure that you contact your airline prior to your departure.

  • How can I fly from Washington Dulles Airport to Vietnam?

    Most airlines operating along this route offer two-stop connecting flight services. Japan Airlines, Korean Air, Vietnam Airlines, American and Delta Airlines are some of the major airlines flying along this route, with stops at multiple airports, including JFK, ICN, DTW, YYZ and NRT airports.

  • How does KAYAK find such low prices on flights from Washington Dulles 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 Washington Dulles Airport to Vietnam.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles 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 Washington Dulles 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 Washington Dulles 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 Washington Dulles 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 Washington Dulles 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 at night, when round-trip flights cost $1,220 on average. Morning departures are around 10% cheaper than evening flights, on average. The most expensive time of day to fly to Vietnam is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,525.

Top tips for finding cheap flights to Vietnam

  • Washington Dulles International Airport (IAD) is located approximately 26 miles away from the city center. It is one of the major airports serving Washington, D.C. It is the hub of United Airlines and Southern Airways Express.
  • If you are flying through IAD, ensure that you arrive at the airport at least 3 hours before your flight departure time. This way, you can have enough time to check in, get your ticket validated and receive your boarding pass. Additionally, you will have ample time to explore the airport’s attractions.
  • When flying from Washington Dulles Airport to Vietnam, it is possible that you will land at three different airports. Noi Bai International Airport (HAN), Da Nang International Airport (DAD) and Tan Son Nhat International Airport (SGN). These are some of the major airports serving international flights.
  • If you are hungry while at any of the Vietnam airports, there are multiple restaurants and cafes within the airports that you can explore. Most of these food concessions are located in the departure and arrivals halls and offer exceptional cuisines.
  • Flights from Washington Dulles Airport to Vietnam offer different inflight amenities to passengers. For instance, Korean Airlines offer excellent services such as assorted meals, entertainment, blankets and eye folds for overnight travelers and accessibility services to passengers with reduced mobility upon request. Therefore, ensure that you confirm each airline's services before making a seat reservation.

Reviews of the top 5 airlines serving from Dulles Intl to Vietnam

 
Need help choosing which airline to fly with from Dulles Intl 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
ANAOverall score based on 1025 reviews
7.9Entertainment
7.7Food
8.6Boarding
8.7Crew
8.2Comfort
Airline reviews

First trip from Tulsa to Houston by air. It went by quickly. I watched half a movie and continued the rest on the next flight. Staff was considerate and helpful.

8.0 ExcellentCecil, Dec 2025
IAH - NRT
Read more ANA reviews

First trip from Tulsa to Houston by air. It went by quickly. I watched half a movie and continued the rest on the next flight. Staff was considerate and helpful.

The meals were sufficient and tasty considering it was air travel food. Water coffee and juices offered each time a meal came by and water distributed between meals. It was good service in my opinion. Plenty of movies to enjoy. May not be the one you want but plenty of older movies and plenty of current ones as well. I enjoyed the trip.

Flight was good and comfortable, even for long haul economy. No complaints.

Checking in via an alliance partner, even a foreign one should get TSA Precheck printed on your boarding pass. The paper copy issued by ANA didn’t show it. I couldn’t get my digital copy due to some technical issue arising because I checked in with ANA. The kiosks at SFO similarly threw an error. The only way I could have gotten a new copy of my boarding pass was from the UA counter and lines were nearly as long as TSA so I bit the bullet and went through the regular TSA line. If UA wants my business, they need to improve that process.

Suite lounge in Honolulu is very exclusive and boarding from the lounge into the plane is unique. First suites were huge and comfortable. Japanese meal is like a high end omakase meal. All the staff were very kind and provided sophisticated service. Fast Track upon landing was appreciated but not needed this time because immigration was so empty and easy.

I like the service very much. The food just okay but maybe different culture who like, who don't like.

Warm the bread. Movies: better choices to include Chinese movies options or some of the older winners of flim festival

Almost 6 hours of delay with over 12 gate changes. Flight was supposed to depart around 6 and instead depart after 12am. No accommodations were offered than some snacks closer to midnight when the crew was planning to throw away some snacks.

The crew was very nice and polite. They made sure everybody got their meal and drinks. Even the economy class had a very adequate leg room for someone that is over 6 foot tall.

Purchased WiFi was slow to non functional. Staff was not personable or friendly. Seats were cramped. Boarding took long but I expected that.

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

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

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

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

All good. Over four hours flight if provided snacks like Qatar Airways would be better

Lobster starter in business class was not good, tough, served cold, and without butter. Movie selection was missing latest releases, did not offer older classic, high quality movies

Food was absolutely pathetic. I wasted so much food which I thought was inedible. I also loathe the inflight entertainment system which has very little content

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

Nothing to complain. The staff and flight was good especially the seats which was better compared than the cloth ones on Qatar airways

I was travelling 3.5 years after. Agree Economy is no business class but the food was mediocre. Ordered a Hindu meal, the salads were bitter . The food was really below quality and had no tast from what I had in the past. Indian Railways probably have a better quality food when compared. However the kids meal was really nice and really appreciate how they were taken care of. The restrooms were dirty .

My flight was with American Airlines 120. The flight was delayed 3 hours and I missed my connection. When I arrived in Doha, the AA staff told me to call an 800 number to rebook a different flight, which was unacceptable. Eventually a Qatar Air staff member helped rebook me on a flight to Manila, that was 12 hours later. They offered me a hotel and meal voucher which I declined, because I didn’t want to leave the airport. Long story short, I spent 12 hours in the Doha airport waiting for my next flight.

Overall the experience was neat with crew being nice and caring especially to parent with kids. The free snacks option was okay. The kiosk at Philly airport didn’t work.

Reason for travelling Tampa to Orlando is to fly Qatar Airline. we end up with American Airline. This was the miserable experience I ever had in my entire travel history. Flight attendants were rude. They hit my knee with the food cart and I was holding ice pack for 2 hours. I still have the pain after a week. WE boarded the flight twice because of the temperature inside the plan.

First keep the airline as you promise. Reason for travelling from Orlando to Tampa is to go with Qatar Airline. We end up with American Airline. As expected the service was horrible.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

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

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

it was like a banya -so hot... They did provide a great experience with special food. one toilet broke midflight In general it was a peaceful and relaxing flight - for business class it was good.

Chicago to Istanbul was a much better experience than I expected since I’m more accustomed to Qatar Airways business class. The business lounge in the Istanbul airport was amazing - loved the lockers and phone charging stations, and the bathroom was a spa experience in itself. The onward leg from Istanbul to Karachi was utterly disappointing. Terrible plane, and I felt like I was in economy - the seats don’t come near to lying flat and the food was mediocre. What a sad downgrade - it isn’t as though the ticket on that leg was cheaper. So, on that front, there’s no contest with Qatar airways.

Second leg of Turkish Airline with Indigo is disaster for following reason. 1) You have to carry your cabin bags through ladder to boeing 777 because it was parked somewhere in parking lot and was not given a gate to board passengers and this seems to be people traveling to and fro from those flights and is not issue with flight itself. 2) I choose non vegetarian food on Turkish portal way ahead of checkin to entire trip, However the Indigo flight gave me random veg food saying they code veg food code from Turkish. 3) Indigo did not served any alcoholic beverages stating some weird reason which is non nonsensical. 4)Indigo have TV screens in front of you but it displays nothing except "Welcome Onboard" with annoying white black ground in dark flight. This is the most stupidest and annoying part because you are held hostage for 7 hours and only thing you could do is stare back at white screen which does not have entertainment package or even flight tracker. Such a shame.

nice and clean plane but the seats and the comfort was not what i expected. i expected more based on all the ads and reviews that i've read. I guess you get what you pay for in economy.

Overall it was good. Food was bad. I ordered gluten free vegetarian meal. But I got gluten free chicken for my long flight from Seattle to Istanbul. I don’t eat any kind of meat. Second meal I got eggplant with meat which I couldn’t eat. I don’t understand why we can’t get gluten free vegetarian meal for a 12 hour flight. I eat the bread and that was it.

Worse worse worse, i would not recommend this airline to anyone. Istanbul airport maybe State of the Art facility but staff is rude, only works if they get tips, and they push you to give tips even though my family had spent $50 in tips. Airline staff doesn't speak english so you really can't understand them. It was a nightmare travelling with Turkish. Never again.

As a big guy the seats are way too small for me. Would prefer more comfortable seats on these long haul flights.

My flight was canceled 1 minute before boarding. The customer service was owful, no one could tell us what was going happened. I spent 30hrs instead of 15 from Washington DC to Brussels. No apologie or help

Boeing 777 is a bad choice for a such a long flight.

The staff at IST airport could have been more helpful. Too much wasted time and the plane from IST to KHI was just horrible. The plane was not clean and smelled bad!

Everything you need to know for your flight from Dulles Intl to Vietnam

Information on your arrival and departure airports