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Cheap flights from Washington, D.C. Reagan-National Airport to Vietnam from $316

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Vietnam departing on 11/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Vietnam

Cheap round-trip flights

Enter your travel dates to find the best prices.
China Airlines Logo
5:00 pm - 4:50 pmDCA-SGN
35h 50m2 stops
China Airlines Logo
5:50 pm - 8:00 pmSGN-DCA
38h 10m2 stops
$899China Airlines
Find Deal
Mon, Nov 17 - Mon, Dec 15
China Airlines Logo
5:01 pm - 4:50 pmDCA-SGN
35h 49m2 stops
China Airlines Logo
5:50 pm - 8:55 pmSGN-DCA
38h 05m2 stops
$901China Airlines
Find Deal
Mon, Feb 2 - Mon, Mar 9
Cathay Pacific Logo
6:55 pm - 10:35 amDCA-SGN
27h 40m2 stops
Cathay Pacific Logo
1:50 pm - 8:55 pmSGN-DCA
42h 05m2 stops
$968Cathay Pacific
Find Deal
Tue, Feb 3 - Tue, Mar 17
United Airlines Logo
6:00 am - 9:50 pmDCA-SGN
27h 50m2 stops
United Airlines Logo
11:05 pm - 7:28 pmSGN-DCA
32h 23m2 stops
$970United Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 22
United Airlines Logo
7:00 am - 9:50 pmDCA-SGN
26h 50m2 stops
United Airlines Logo
7:30 am - 7:35 pmSGN-DCA
24h 05m2 stops
$973United Airlines
Find Deal
Thu, Nov 27 - Wed, Dec 17
Cathay Pacific Logo
9:13 pm - 12:20 amDCA-SGN
39h 07m2 stops
Cathay Pacific Logo
1:50 pm - 6:57 pmSGN-DCA
40h 07m2 stops
$983Cathay Pacific
Find Deal
Sun, Feb 1 - Mon, Mar 9
ANA Logo
8:20 am - 12:15 amDCA-SGN
27h 55m2 stops
ANA Logo
11:15 pm - 3:34 pmSGN-DCA
27h 19m2 stops
$1,005ANA
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Tue, Mar 3 - Tue, May 12
ANA Logo
2:00 pm - 9:50 pmDCA-SGN
43h 50m2 stops
ANA Logo
7:30 am - 2:13 pmSGN-DCA
42h 43m2 stops
$1,018ANA
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Mon, Feb 2 - Fri, Feb 13
Japan Airlines Logo
6:10 am - 5:55 amDCA-SGN
35h 45m2 stops
Japan Airlines Logo
11:45 pm - 12:51 pmSGN-DCA
25h 06m2 stops
$1,022Japan Airlines
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Wed, Dec 3 - Mon, Dec 22
Japan Airlines Logo
8:36 am - 10:30 pmDCA-HAN
25h 54m2 stops
Japan Airlines Logo
11:55 pm - 7:00 pmHAN-DCA
31h 05m2 stops
$1,092Japan Airlines
Find Deal
Sun, Dec 7 - Fri, Dec 12

Singapore Airlines flights from Washington, D.C. Reagan-National Airport to Vietnam

Our best Singapore Airlines deals on Washington, D.C. Reagan-National Airport to Vietnam flight tickets
Singapore Airlines
Feb 2
DCA9:59 amWashington, D.C. Reagan-National
41h 01m
2 stops
SGN3:00 pmHo Chi Minh City
Feb 13
SGN12:15 pmHo Chi Minh City
44h 40m
2 stops
DCA8:55 pmWashington, D.C. Reagan-National
$940
Find similar
Singapore Airlines
Feb 25
DCA9:30 amWashington, D.C. Reagan-National
43h 50m
2 stops
HAN5:20 pmHanoi Noibai
Mar 10
HAN12:45 pmHanoi Noibai
43h 10m
2 stops
DCA8:55 pmWashington, D.C. Reagan-National
$1,002
Find similar

United Airlines flights from Washington, D.C. Reagan-National Airport to Vietnam

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Vietnam flight tickets
United Airlines
Nov 12
DCA7:00 amWashington, D.C. Reagan-National
26h 50m
2 stops
SGN9:50 pmHo Chi Minh City
Nov 26
SGN7:30 amHo Chi Minh City
27h 12m
2 stops
DCA10:42 pmWashington, D.C. Reagan-National
$962
Find similar
United Airlines
Dec 8
DCA6:00 amWashington, D.C. Reagan-National
27h 50m
2 stops
SGN9:50 pmHo Chi Minh City
Dec 22
SGN11:05 pmHo Chi Minh City
32h 23m
2 stops
DCA7:28 pmWashington, D.C. Reagan-National
$970
Find similar
United Airlines
Nov 12
DCA6:00 amWashington, D.C. Reagan-National
27h 50m
2 stops
SGN9:50 pmHo Chi Minh City
Nov 26
SGN7:30 amHo Chi Minh City
23h 37m
2 stops
DCA7:07 pmWashington, D.C. Reagan-National
$973
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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, momondo users made 832,500 searches. Data last updated November 6, 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

Fly to

Route

Depart

Return

Price

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Mon 11/17

5:00 pm-4:50 pm

2 stops35h 50m

Ho Chi Minh City

Mon 12/15

5:50 pm-8:00 pm

2 stops38h 10m

$899

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Mon 2/2

5:01 pm-4:50 pm

2 stops35h 49m

Ho Chi Minh City

Mon 3/9

5:50 pm-8:55 pm

2 stops38h 05m

$901

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Tue 2/3

6:55 pm-10:35 am

2 stops27h 40m

Ho Chi Minh City

Tue 3/17

1:50 pm-8:55 pm

2 stops42h 05m

$968

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Mon 12/8

6:00 am-9:50 pm

2 stops27h 50m

Ho Chi Minh City

Mon 12/22

11:05 pm-7:28 pm

2 stops32h 23m

$970

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Thu 11/27

7:00 am-9:50 pm

2 stops26h 50m

Ho Chi Minh City

Wed 12/17

7:30 am-7:35 pm

2 stops24h 05m

$973

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Sun 2/1

9:13 pm-12:20 am

2 stops39h 07m

Ho Chi Minh City

Mon 3/9

1:50 pm-6:57 pm

2 stops40h 07m

$983

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Tue 3/3

8:20 am-12:15 am

2 stops27h 55m

Ho Chi Minh City

Tue 5/12

11:15 pm-3:34 pm

2 stops27h 19m

$1,005

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Mon 2/2

2:00 pm-9:50 pm

2 stops43h 50m

Ho Chi Minh City

Fri 2/13

7:30 am-2:13 pm

2 stops42h 43m

$1,018

Washington, D.C.Ho Chi Minh City

DCA - SGN

DCASGN

Washington, D.C. Reagan-National

Wed 12/3

6:10 am-5:55 am

2 stops35h 45m

Ho Chi Minh City

Mon 12/22

11:45 pm-12:51 pm

2 stops25h 06m

$1,022

Washington, D.C.Hanoi

DCA - HAN

DCAHAN

Washington, D.C. Reagan-National

Sun 12/7

8:36 am-10:30 pm

2 stops25h 54m

Hanoi Noibai

Fri 12/12

11:55 pm-7:00 pm

2 stops31h 05m

$1,092

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Vietnam from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Vietnam

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Vietnam?

The month of October is, on average, the cheapest month to fly to Vietnam from Washington, D.C. Reagan-National Airport, with most prices found around $985. If you don’t want to visit Vietnam in October, then you should wait until September to fly from Washington, D.C. Reagan-National Airport, when ticket prices are also cheap, with an average price of $1,035.

What is the cheapest day to depart on your flight to Vietnam?

According to our data, Monday is the cheapest day to fly to Vietnam from Washington, D.C. Reagan-National Airport. The lowest ticket price found for a Monday departure recently was $1,049. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Vietnam on Tuesday is $1,481.

What is the cheapest time of day to depart on your flight to Vietnam?

Flying to Vietnam from Washington, D.C. Reagan-National Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,088 when looking at flights departing in the morning. In the afternoon is when there is more demand to fly to Vietnam, so prices are often more expensive at around $1,242 per ticket.

Cheap Washington, D.C. Reagan-National Airport to Vietnam flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Vietnam

Direct flights

None
There are no direct flights from Washington, D.C. Reagan-National Airport to Vietnam. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Vietnam.
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  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Vietnam?

    Prices for flights from Washington, D.C. Reagan-National Airport to Vietnam were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Vietnam?

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Vietnam?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Vietnam.

  • What documentation or ID do you need to fly to Vietnam?

    The necessary travel and health documents for your Vietnam trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Washington, D.C. Reagan-National Airport to Vietnam

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Vietnam with momondo
Airline
Rating
Free Cancellation
Price
Cathay PacificPriceFrom $974Free CancellationRating
7.6
1,055 reviews
Search Cathay Pacific flights
United AirlinesPriceFrom $985Free CancellationRating
7.4
9,004 reviews
Search United Airlines flights
ANAPriceFrom $1,041Free CancellationRating
8.4
1,003 reviews
Search ANA flights
Japan AirlinesPriceFrom $1,082Free CancellationRating
8.3
1,604 reviews
Search Japan Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Vietnam?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Vietnam for you.

Can I find flights from Washington, D.C. to Vietnam with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Vietnam from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Vietnam?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Vietnam from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to Vietnam right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Vietnam from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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