Cheap flights from Washington to Vietnam from $306

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 to Vietnam departing on 3/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Asiana Airlines Logo
12:10 am - 9:45 pm
SEA
-
DAD
30h 35m
1 stop
Asiana Airlines Logo
11:00 pm - 2:55 pm
DAD
-
SEA
29h 55m
1 stop
$622Asiana Airlines
Mon, Feb 23 - Tue, Mar 10
Asiana Airlines Logo
12:55 am - 10:00 pm
SEA
-
HAN
31h 05m
1 stop
Asiana Airlines Logo
1:25 pm - 2:55 pm
HAN
-
SEA
15h 30m
1 stop
$627Asiana Airlines
Tue, Apr 7 - Fri, Apr 17
Delta Logo
11:25 am - 9:45 pm
SEA
-
HAN
19h 20m
1 stop
Delta Logo
12:20 pm - 1:20 pm
HAN
-
SEA
16h 00m
1 stop
$666Delta
Fri, Jan 30 - Tue, Feb 17
Korean Air Logo
11:00 am - 9:45 pm
SEA
-
HAN
19h 45m
1 stop
Korean Air Logo
12:20 pm - 9:00 am
HAN
-
SEA
35h 40m
1 stop
$670Korean Air
Thu, Jan 29 - Tue, Feb 3
Korean Air Logo
7:15 am - 9:45 pm
SEA
-
HAN
23h 30m
2 stops
Korean Air Logo
11:05 pm - 9:00 am
HAN
-
SEA
24h 55m
1 stop
$675Korean Air
Sun, Feb 1 - Tue, Feb 17
ANA Logo
6:18 am - 10:55 pm
SEA
-
SGN
25h 37m
2 stops
ANA Logo
6:00 am - 1:20 pm
SGN
-
SEA
46h 20m
2 stops
$675ANA
Tue, Jan 27 - Tue, Feb 3
United Airlines Logo
5:20 pm - 10:55 pm
SEA
-
SGN
38h 35m
3 stops
United Airlines Logo
7:00 am - 11:27 pm
SGN
-
SEA
30h 27m
3 stops
$676United Airlines
Wed, Feb 18 - Thu, Apr 16
United Airlines Logo
7:29 pm - 9:50 pm
SEA
-
SGN
35h 21m
2 stops
United Airlines Logo
6:00 am - 12:59 am
SGN
-
SEA
32h 59m
2 stops
$680United Airlines
Tue, Mar 3 - Thu, Mar 26
Delta Logo
11:25 am - 10:25 pm
SEA
-
SGN
20h 00m
1 stop
Delta Logo
8:00 am - 1:20 pm
SGN
-
SEA
20h 20m
1 stop
$681Delta
Sat, Jan 31 - Thu, Feb 12
ANA Logo
7:29 pm - 9:50 pm
SEA
-
SGN
35h 21m
2 stops
ANA Logo
11:15 pm - 2:25 pm
SGN
-
SEA
29h 10m
1 stop
$682ANA
Mon, Mar 2 - Tue, Mar 31

China Airlines flights from State of Washington to Vietnam

Our best China Airlines deals on State of Washington to Vietnam flight tickets
China Airlines
Mar 10
SEA1:10 amSeattle/Tacoma Intl
18h 50m
1 stop
SGN10:00 amHo Chi Minh City
Apr 7
SGN10:50 amHo Chi Minh City
22h 25m
1 stop
SEA7:15 pmSeattle/Tacoma Intl
$692
China Airlines
Jan 18
SEA12:10 amSeattle/Tacoma Intl
25h 40m
1 stop
SGN4:50 pmHo Chi Minh City
Feb 9
SGN11:00 amHo Chi Minh City
22h 10m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
$704
China Airlines
Mar 17
SEA1:10 amSeattle/Tacoma Intl
18h 50m
1 stop
SGN10:00 amHo Chi Minh City
Apr 7
SGN10:50 amHo Chi Minh City
22h 25m
1 stop
SEA7:15 pmSeattle/Tacoma Intl
$708

Asiana Airlines flights from State of Washington to Vietnam

Our best Asiana Airlines deals on State of Washington to Vietnam flight tickets
Asiana Airlines
Feb 23
SEA12:10 amSeattle/Tacoma Intl
30h 35m
1 stop
DAD9:45 pmDa Nang
Mar 10
DAD11:00 pmDa Nang
29h 55m
1 stop
SEA2:55 pmSeattle/Tacoma Intl
$622
Asiana Airlines
Apr 7
SEA12:55 amSeattle/Tacoma Intl
31h 05m
1 stop
HAN10:00 pmHanoi Noibai
Apr 17
HAN1:25 pmHanoi Noibai
15h 30m
1 stop
SEA2:55 pmSeattle/Tacoma Intl
$627
Asiana Airlines
Jan 31
SEA12:10 amSeattle/Tacoma Intl
31h 15m
1 stop
HAN10:25 pmHanoi Noibai
Feb 7
HAN11:50 pmHanoi Noibai
29h 05m
1 stop
SEA1:55 pmSeattle/Tacoma Intl
$653

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 January 13, 2026.
Use the filters below to find and compare flights from Washington to Vietnam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleDa Nang

SEA - DAD

SEADAD

Seattle/Tacoma Intl

Mon 2/23

12:10 am-9:45 pm

1 stop30h 35m

Da Nang

Tue 3/10

11:00 pm-2:55 pm

1 stop29h 55m

$622

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 4/7

12:55 am-10:00 pm

1 stop31h 05m

Hanoi Noibai

Fri 4/17

1:25 pm-2:55 pm

1 stop15h 30m

$627

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Fri 1/30

11:25 am-9:45 pm

1 stop19h 20m

Hanoi Noibai

Tue 2/17

12:20 pm-1:20 pm

1 stop16h 00m

$666

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Thu 1/29

11:00 am-9:45 pm

1 stop19h 45m

Hanoi Noibai

Tue 2/3

12:20 pm-9:00 am

1 stop35h 40m

$670

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sun 2/1

7:15 am-9:45 pm

2 stops23h 30m

Hanoi Noibai

Tue 2/17

11:05 pm-9:00 am

1 stop24h 55m

$675

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Tue 1/27

6:18 am-10:55 pm

2 stops25h 37m

Ho Chi Minh City

Tue 2/3

6:00 am-1:20 pm

2 stops46h 20m

$675

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Wed 2/18

5:20 pm-10:55 pm

3 stops38h 35m

Ho Chi Minh City

Thu 4/16

7:00 am-11:27 pm

3 stops30h 27m

$676

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Tue 3/3

7:29 pm-9:50 pm

2 stops35h 21m

Ho Chi Minh City

Thu 3/26

6:00 am-12:59 am

2 stops32h 59m

$680

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sat 1/31

11:25 am-10:25 pm

1 stop20h 00m

Ho Chi Minh City

Thu 2/12

8:00 am-1:20 pm

1 stop20h 20m

$681

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Mon 3/2

7:29 pm-9:50 pm

2 stops35h 21m

Ho Chi Minh City

Tue 3/31

11:15 pm-2:25 pm

1 stop29h 10m

$682

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 State of Washington 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 September is, on average, the cheapest month to fly to Vietnam from State of Washington, with most prices found around $744. If you don’t want to visit Vietnam in September, then you should wait until November to fly from State of Washington, when ticket prices are also cheap, with an average price of $746.

How far in advance should I book a flight to Vietnam?

You are more likely to see cheaper flights to Vietnam from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Vietnam for around $888 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Vietnam from State of Washington for as low as $756 on momondo.

Can stopping save me money on State of Washington to Vietnam flights?

You could potentially save up to 17% on your flight if you consider stops on a State of Washington to Vietnam flight.

Cheap State of Washington to Vietnam flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Vietnam

Fastest flight time

18h 15m

Direct flights

None
The fastest flight from State of Washington to Vietnam takes 18h 15m
There are no direct flights from State of Washington to Vietnam. There are no popular flight routes from State of Washington to Vietnam.
  • When did momondo last update prices for flights from Washington to Vietnam?

    Prices for flights from Washington to Vietnam are updated daily.

  • How many operators does momondo search for flights from Washington to Vietnam?

  • How old do you have to be to fly from Washington 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 to Vietnam.

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

    The travel and health documents you'll need for your trip to Vietnam may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Vietnam. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Vietnam

Compare and see reviews for airlines that fly from State of Washington to Vietnam with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom $509Free CancellationRating
8.1
1,431 reviews
Search Singapore Airlines flights
Philippine AirlinesPriceFrom $544Free CancellationRating
7.3
954 reviews
Search Philippine Airlines flights
Asiana AirlinesPriceFrom $627Free CancellationRating
8.2
500 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $668Free CancellationRating
8.4
1,187 reviews
Search Korean Air flights
China AirlinesPriceFrom $677Free CancellationRating
8.3
798 reviews
Search China Airlines flights
ANAPriceFrom $688Free CancellationRating
8.4
1,069 reviews
Search ANA flights
United AirlinesPriceFrom $691Free CancellationRating
7.4
9,149 reviews
Search United Airlines flights
DeltaPriceFrom $702Free CancellationRating
7.9
8,038 reviews
Search Delta flights
STARLUX AirlinesPriceFrom $725Free CancellationRating
8.9
262 reviews
Search STARLUX Airlines flights
EVA AirPriceFrom $749Free CancellationRating
8.4
1,317 reviews
Search EVA Air flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Vietnam?

It is quick and easy to find Washington to Vietnam flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Vietnam that suits you.

Can I find flights from Washington to Vietnam with flexible booking policies on momondo?

momondo does allow users to show only those flights to Vietnam from Washington which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington to Vietnam?

momondo provides multiple filters to help you find the best flight to Vietnam from Washington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Vietnam, momondo offers a useful price alert feature which will track prices for flights to Vietnam from Washington and alert you when they change.

An easier way to manage your Vietnam trip

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1 adult
Thu 2/12
Thu 2/19

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