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$303+ Cheap flights from Washington to Vietnam

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SGN
feb. 28 — mar. 71
sáb. 2/28
sáb. 3/7
1 adult, Economy
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Cheap flight deals from Washington to Vietnam

Cheapest flights from Washington to Vietnam
Explore the most affordable flight options available from Washington to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 29, 2026.

This oojo deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/2710:15 am
SEA
-
HAN
1 stop41h 25m
Singapore Airlines
jue. 9/2412:40 pm
HAN
-
SEA
1 stop34h 05m
Singapore Airlines
Deal found 1/28$517
This FlightHub deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/310:15 am
SEA
-
HAN
1 stop41h 25m
Singapore Airlines
jue. 9/1712:40 pm
HAN
-
SEA
1 stop34h 05m
Singapore Airlines
Deal found 1/27$554
This FlightHub deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/1510:15 am
SEA
-
HAN
1 stop41h 25m
Singapore Airlines
mié. 9/912:50 pm
HAN
-
SEA
1 stop33h 55m
Singapore Airlines
Deal found 1/27$613
This CrystalTravel deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/2312:55 am
SEA
-
HAN
1 stop21h 20m
Asiana Airlines
dom. 9/61:25 pm
HAN
-
SEA
1 stop15h 30m
Asiana Airlines
Deal found 1/28$614
This FlightHub deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/110:15 am
SEA
-
HAN
1 stop41h 25m
Singapore Airlines
lun. 9/73:20 pm
HAN
-
SEA
1 stop31h 25m
Singapore Airlines
Deal found 1/29$615
This oojo deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/1412:55 am
SEA
-
HAN
1 stop21h 20m
Asiana Airlines
jue. 4/301:25 pm
HAN
-
SEA
1 stop15h 30m
Asiana Airlines
Deal found 1/26$622
This oojo deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/912:55 am
SEA
-
HAN
1 stop21h 20m
Asiana Airlines
mar. 4/211:25 pm
HAN
-
SEA
1 stop15h 30m
Asiana Airlines
Deal found 1/27$623
This FlightHub deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/812:10 am
SEA
-
HAN
1 stop32h 15m
Asiana Airlines
lun. 3/161:30 pm
HAN
-
SEA
1 stop15h 25m
Asiana Airlines
Deal found 1/29$627
This FlightHub deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/812:10 am
SEA
-
HAN
1 stop32h 15m
Asiana Airlines
sáb. 3/141:30 pm
HAN
-
SEA
1 stop15h 25m
Asiana Airlines
Deal found 1/27$629
This Korean Air deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/47:00 am
SEA
-
HAN
2 stops24h 35m
Korean Air
mar. 5/1212:00 pm
HAN
-
SEA
1 stop36h 40m
Korean Air
Deal found 1/28$635
This ScholarTrip deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/271:20 pm
SEA
-
HAN
1 stop31h 20m
Korean Air
jue. 9/2412:00 pm
HAN
-
SEA
2 stops22h 28m
Korean Air
Deal found 1/28$636
This Korean Air deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/117:25 am
SEA
-
HAN
2 stops24h 20m
Korean Air
lun. 3/1611:05 pm
HAN
-
SEA
2 stops32h 04m
Korean Air
Deal found 1/27$646

Find flight deals from Washington to Vietnam

Keep the following information in mind while searching for Washington to Vietnam flight deals. Data was last updated enero 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$622
(oojo)

One-way from

$303
(FlightHub)

Popular in

June

Cheapest in

November

Average price

$763
Provider with most accurate pricing for Seattle/Tacoma Intl-Ho Chi Minh City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Ho Chi Minh City flights.
Search Deals
From Washington to Vietnam
Search Deals
One-way flight from Washington to Vietnam
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($210 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from 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, Cheapflights users made 2,558,603 searches. Data last updated enero 29, 2026.
Use the filters below to find and compare flights from Washington to Vietnam that are best for you.

Fly from

Washington

Fly to

Vietnam

Route

Depart

Return

Price

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

mié. 3/11

7:25 am-9:45 pm

2 stops24h 20m

Hanoi Noibai

lun. 3/16

11:05 pm-5:09 pm

2 stops32h 04m

$646

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

sáb. 3/7

12:10 am-10:25 pm

1 stop31h 15m

Hanoi Noibai

vie. 3/13

1:30 pm-2:55 pm

1 stop15h 25m

$670

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

vie. 3/6

12:10 am-10:25 pm

1 stop31h 15m

Hanoi Noibai

vie. 3/13

1:30 pm-2:55 pm

1 stop15h 25m

$670

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

vie. 4/24

7:00 am-11:15 pm

2 stops26h 15m

Ho Chi Minh City

lun. 6/1

11:45 pm-2:43 pm

2 stops28h 58m

$681

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

lun. 2/16

7:10 am-11:20 pm

2 stops25h 10m

Ho Chi Minh City

jue. 3/5

8:00 am-10:25 pm

2 stops29h 25m

$686

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

dom. 3/1

5:10 pm-11:20 pm

2 stops39h 10m

Ho Chi Minh City

mar. 3/24

11:50 pm-9:48 pm

2 stops35h 58m

$692

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

lun. 4/6

7:59 pm-11:15 pm

2 stops37h 16m

Ho Chi Minh City

lun. 5/4

11:45 pm-10:20 pm

2 stops36h 35m

$692

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

jue. 3/5

7:10 am-11:20 pm

2 stops25h 10m

Ho Chi Minh City

jue. 4/9

7:35 am-10:40 am

1 stop17h 05m

$695

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

lun. 3/23

7:25 am-10:25 pm

2 stops25h 00m

Ho Chi Minh City

mié. 4/8

1:55 pm-10:40 am

1 stop34h 45m

$695

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

mar. 3/24

7:25 am-10:25 pm

2 stops25h 00m

Ho Chi Minh City

mié. 4/1

1:55 pm-10:40 am

1 stop34h 45m

$695

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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Best time to book a flight from Washington to Vietnam

Have a flexible travel schedule? Discover the best time to fly to Vietnam from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Vietnam

What is the cheapest month to book a flight from State of Washington to Vietnam?

Currently, February is the cheapest month in which you can book a flight from State of Washington to Vietnam (average of $493). Flying from State of Washington to Vietnam in June is currently the most expensive (average of $939). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Washington to Vietnam. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from State of Washington to Vietnam?

    Departing from State of Washington to Vietnam will take you 24h 20m. There are 6827 mi between State of Washington and Vietnam. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from State of Washington to Vietnam one-way?

    $276 is the cheapest one-way deal found within the past few days, from Singapore Airlines. You may also be able to find cheap deals on Philippine Airlines and Delta, with prices starting from $320 and $340, respectively.

  • Can I find deals for flights from Washington to Vietnam that include hotel bookings?

    Yes. In addition to deals on Washington to Vietnam flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Vietnam?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Vietnam.

  • Can I find deals for business class flights from Washington to Vietnam?

    Yes. Cheapflights offers flight deals from Washington to Vietnam by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Vietnam?

    Currently, February is the cheapest month in which you can book a flight from State of Washington to Vietnam (average of $493). Flying from State of Washington to Vietnam in June is currently the most expensive (average of $939). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington to Vietnam

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Washington to Vietnam

Discover the top 10 airlines that operate flights from Washington to Vietnam. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$432Average$893FlexibilityNo cancel feeOn-time81%
DeltaCheapest$493Average$938FlexibilityNo cancel feeOn-timeN/A
Singapore AirlinesCheapest$509Average$720FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$544Average$692FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$628Average$743FlexibilityNo cancel feeOn-time76%
China AirlinesCheapest$675Average$792FlexibilityNo cancel feeOn-time70%
ANACheapest$688Average$787FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$691Average$783FlexibilityNo cancel feeOn-time69%
STARLUX AirlinesCheapest$725Average$873FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$748Average$926FlexibilityNo cancel feeOn-time74%

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