$547 Find Cheap Flights from Vietnam to Washington, D.C. - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Washington, D.C. departing on 10/21. 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 Vietnam to Washington, D.C.

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Vietnam to Washington, D.C. 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 Vietnam to Washington, D.C.

Thu, Sep 3 - Wed, Sep 16
Korean Air Logo
1:55 pm - 11:05 am
SGN
-
IAD
32h 10m
1 stop
Korean Air Logo
1:15 pm - 11:15 pm
IAD
-
SGN
23h 00m
1 stop
$1,057Korean Air
Fri, Oct 23 - Sat, Nov 7
Korean Air Logo
1:55 pm - 11:05 am
SGN
-
IAD
32h 10m
1 stop
Korean Air Logo
11:50 am - 10:25 pm
IAD
-
SGN
22h 35m
1 stop
$1,060Korean Air
Thu, Sep 3 - Wed, Sep 16
Delta Logo
11:45 pm - 6:45 pm
SGN
-
DCA
30h 00m
2 stops
Delta Logo
6:10 am - 10:10 pm
DCA
-
SGN
29h 00m
2 stops
$1,062Delta
Thu, Sep 3 - Wed, Sep 16
Delta Logo
7:30 am - 11:48 pm
SGN
-
DCA
27h 18m
2 stops
Delta Logo
9:40 am - 11:15 pm
DCA
-
SGN
26h 35m
2 stops
$1,062Delta
Sun, Oct 4 - Tue, Oct 6
United Airlines Logo
11:15 pm - 12:58 am
SGN
-
IAD
36h 43m
2 stops
United Airlines Logo
12:15 pm - 9:55 pm
IAD
-
SGN
22h 40m
1 stop
$1,068United Airlines
Mon, Sep 7 - Tue, Oct 6
Multiple Airlines Logo
2:50 am - 7:30 pm
SGN
-
IAD
27h 40m
2 stops
Multiple Airlines Logo
11:00 pm - 12:40 am
IAD
-
SGN
38h 40m
1 stop
$1,074Multiple Airlines
Thu, Oct 8 - Fri, Oct 9
Air China Logo
6:15 pm - 7:30 pm
HAN
-
IAD
36h 15m
2 stops
Air China Logo
11:00 pm - 11:55 am
IAD
-
HAN
25h 55m
1 stop
$1,078Air China
Sun, Oct 4 - Tue, Oct 6
United Airlines Logo
11:15 pm - 12:58 am
SGN
-
IAD
36h 43m
2 stops
United Airlines Logo
12:15 pm - 9:55 pm
IAD
-
SGN
22h 40m
1 stop
$1,115United Airlines
Fri, Dec 18 - Sun, Jan 3
ANA Logo
11:05 pm - 9:10 am
SGN
-
IAD
22h 05m
1 stop
ANA Logo
8:15 am - 12:15 am
IAD
-
SGN
28h 00m
2 stops
$1,147ANA
Sat, Aug 15 - Thu, Nov 19
ANA Logo
7:00 am - 8:48 pm
SGN
-
IAD
24h 48m
1 stop
ANA Logo
6:10 am - 9:50 pm
IAD
-
SGN
27h 40m
2 stops
$1,637ANA
Booking Insights

KAYAK's insights & trends for flights to Washington, D.C.

Get data-powered insights and trends for flights to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Washington, D.C.?

These are the best round-trip prices found by users searching on KAYAK in the last 5 days.

In the last 5 days, the cheapest flight deal to Washington, D.C. was found on the route from Hanoi, at $1,057 return. The most popular connection is from Ho Chi Minh City to Washington, D.C. and KAYAK users have found round-trip deals for as low as $1,057 in the last 5 days.

What is the cheapest month to fly to Washington, D.C.?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Washington, D.C., 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 to Washington, D.C. is December, where tickets cost $1,151 on average for return flights. On the other hand, the most expensive months are January and March, where the average cost of tickets from Vietnam is $1,680 and $1,595 respectively. For one-way flights, the best month to travel is September with an average price of $633.

How far in advance should I book a flight to Washington, D.C.?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Washington, D.C., 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, you should book around 3 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Which is the cheapest airport to fly into in Washington, D.C.?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Washington, D.C. is Baltimore/Washington Airport (BWI), with an average flight price of $239.

Find deals

Good to know

Low season

September

Cheapest flight

$547
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Hanoi to Baltimore

FAQs - booking Washington, D.C. flights

  • What is the cheapest flight to Washington, D.C.?

    In the last 5 days, the cheapest flight deal to Washington, D.C. was found on the route from Hanoi, at $1,057 return. The most popular connection is from Ho Chi Minh City to Washington, D.C. and KAYAK users have found round-trip deals for as low as $1,057 in the last 5 days.

  • Which Washington, D.C. airport is closest to central Washington, D.C.?

    There are 2 airports in Washington, D.C.. The closest airport to Washington, D.C.’s city center is Reagan Washington National Airport (4 miles). Washington Dulles Airport is 22 miles from the center.

  • How does KAYAK find such low prices on flights to Washington, D.C.?

    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 to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Washington, D.C.?

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

  • What is the Hacker Fare option on flights to Washington, D.C.?

    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 to Washington, D.C. 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 to Washington, D.C.?

    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 to Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Washington, D.C. are there each week?

    Each week there are around 13,532 direct flights from within Vietnam to Washington, D.C.. The most common day for departures is Sunday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Washington, D.C.

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington, D.C. flight deals.

Reviews of the top airline flying from Vietnam to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Vietnam to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Washington, D.C.? 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 1223 reviews
8.1Food
8.7Crew
8.3Comfort
8.5Boarding
8.2Entertainment
Airline reviews

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

10.0 ExcellentFiruz, Apr 2026
ICN - LAX
Read more Korean Air reviews

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

AAAAHHHH... It was shocking in a very positive way, the attention to detail, the courtesy, the manners of all personnel on board, the constant honest smiling. You can see and feel they take pride in all they do no matter how trivial. The plane in general was very comfortable. I can't wait to do it again

Great service and comfort level. You can have more of vegetarian food options.

It’s great, long flight and arrive safe at destination

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

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.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

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.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Linthicum Heights
Hanover
Springfield
Gaithersburg
Towson
Oxon Hill
Owings Mills
Greenbelt
Glen Burnie
Edgewood
Camp Springs
Ellicott City
Chesapeake Beach
Pikesville
Colonial Beach
Hunt Valley
Lutherville Timonium
Westminster
Capitol Heights
Stevensville

Everything you need to know for your flight to Washington, D.C.

Cabin class types available on flights to Washington, D.C.

Cabin classes available on flights to Washington, D.C.. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to Washington, D.C.
Business Class flights to Washington, D.C.
Premium Economy Class flights to Washington, D.C.
Economy Class flights to Washington, D.C.