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$276+ 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SGN
Jan 4 — Jan 111
Sun 1/4
Sun 1/11
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 December 5, 2025.

This Justfly.com deal was found by Cheapflights users on 12/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:45 amSEA - SGN
1 stop41h 05mSingapore Airlines
Thu 2/57:50 pmSGN - SEA
1 stop26h 20mSingapore Airlines
Deal found 12/4$780
This FlightHub deal was found by Cheapflights users on 12/4. 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.
Mon 12/293:40 pmSEA - SGN
1 stop39h 10mANA
Wed 2/411:05 pmSGN - SEA
1 stop29h 15mANA
Deal found 12/4$850
This Delta deal was found by Cheapflights users on 12/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:30 amSEA - SGN
1 stop20h 50mDelta
Mon 2/28:00 amSGN - SEA
1 stop20h 20mDelta
Deal found 12/5$866
This Korean Air deal was found by Cheapflights users on 12/5. 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.
Wed 12/311:45 pmSEA - SGN
2 stops32h 05mKorean Air
Wed 2/42:05 pmSGN - SEA
1 stop33h 55mKorean Air
Deal found 12/5$875
This KAYAK deal was found by Cheapflights users on 12/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:40 pmSEA - SGN
1 stop39h 10mANA
Tue 2/311:05 pmSGN - SEA
1 stop29h 15mANA
Deal found 12/4$877
This United Airlines deal was found by Cheapflights users on 12/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/303:40 pmSEA - SGN
1 stop39h 10mUnited Airlines
Thu 1/156:00 amSGN - SEA
2 stops22h 20mUnited Airlines
Deal found 12/3$883
This FlightHub deal was found by Cheapflights users on 12/4. 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.
Mon 12/293:40 pmSEA - SGN
1 stop39h 10mANA
Thu 2/511:05 pmSGN - SEA
1 stop29h 15mANA
Deal found 12/4$885
This Korean Air deal was found by Cheapflights users on 12/5. 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.
Wed 12/315:59 pmSEA - SGN
2 stops27h 51mKorean Air
Thu 2/58:00 amSGN - SEA
2 stops23h 54mKorean Air
Deal found 12/5$886
This United Airlines deal was found by Cheapflights users on 12/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/99:05 amSEA - SGN
2 stops45h 45mUnited Airlines
Thu 1/226:00 amSGN - SEA
2 stops22h 20mUnited Airlines
Deal found 12/4$887
This KAYAK deal was found by Cheapflights users on 12/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:40 pmSEA - SGN
1 stop39h 10mANA
Sun 2/811:05 pmSGN - SEA
2 stops37h 07mANA
Deal found 12/4$888
This United Airlines deal was found by Cheapflights users on 12/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/99:05 amSEA - SGN
2 stops45h 45mUnited Airlines
Wed 2/46:00 amSGN - SEA
3 stops30h 12mUnited Airlines
Deal found 12/4$891
This United Airlines deal was found by Cheapflights users on 12/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:00 amPDX - SGN
2 stops25h 55mUnited Airlines
Thu 12/116:00 amSGN - PDX
3 stops33h 37mUnited Airlines
Deal found 12/3$894

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 December 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$645
(CrystalTravel)

One-way from

$276
(FlightHub)

Popular in

June

Cheapest in

September

Average price

$1,173
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 ($219 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 5, 2025.
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

Sat 2/28

12:10 am-10:25 pm

1 stop31h 15m

Hanoi Noibai

Thu 3/19

11:50 pm-2:55 pm

1 stop29h 05m

$656

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Mon 1/12

7:30 pm-10:55 pm

3 stops36h 25m

Ho Chi Minh City

Wed 1/28

6:00 am-1:20 pm

2 stops22h 20m

$686

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Mon 3/2

11:30 am-10:25 pm

1 stop19h 55m

Ho Chi Minh City

Mon 3/9

2:05 pm-2:20 pm

1 stop38h 15m

$690

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Fri 1/16

9:25 am-10:55 pm

3 stops46h 30m

Ho Chi Minh City

Thu 1/29

6:00 am-9:12 pm

3 stops30h 12m

$690

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Mon 3/2

11:30 am-11:20 pm

1 stop20h 50m

Ho Chi Minh City

Tue 3/24

2:05 pm-2:20 pm

1 stop38h 15m

$690

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Wed 1/7

9:00 am-10:55 pm

2 stops46h 55m

Ho Chi Minh City

Thu 1/22

6:00 am-9:58 pm

2 stops30h 58m

$692

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Wed 3/18

12:00 pm-11:20 pm

1 stop21h 20m

Ho Chi Minh City

Wed 4/8

7:35 am-10:40 am

1 stop17h 05m

$694

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sat 2/28

11:25 am-12:50 pm

1 stop34h 25m

Ho Chi Minh City

Mon 3/9

2:05 pm-2:20 pm

1 stop38h 15m

$694

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Wed 2/25

12:10 am-11:00 am

1 stop19h 50m

Ho Chi Minh City

Sat 3/21

12:10 pm-2:55 pm

1 stop16h 45m

$696

SeattleDa Nang

SEA - DAD

SEADAD

Seattle/Tacoma Intl

Fri 4/24

12:10 am-9:35 pm

1 stop31h 25m

Da Nang

Sat 5/9

11:05 pm-2:55 pm

1 stop29h 50m

$696

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 60 results
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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, May is the cheapest month in which you can book a flight from State of Washington to Vietnam (average of $540). Flying from State of Washington to Vietnam in June is currently the most expensive (average of $940). 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.

What is the cheapest time of day to fly from WA to VN?

Find hourly flight availability from Washington to Vietnam. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 5, 2025.

A simple way to save on the total cost of your ticket is to fly from State of Washington to Vietnam at noon. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from State of Washington to Vietnam?

Use this chart to determine the cheapest time to fly round-trip from Washington to Vietnam. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their State of Washington to Vietnam flight should consider departing on Tuesday mornings when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 19h 55m. There are 7410 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?

    $277 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 ANA, with prices starting from $325 and $341, 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, May is the cheapest month in which you can book a flight from State of Washington to Vietnam (average of $540). Flying from State of Washington to Vietnam in June is currently the most expensive (average of $940). 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

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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 December 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$474Average$1,087FlexibilityNo cancel feeOn-time81%
Singapore AirlinesCheapest$509Average$780FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$544Average$697FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$626Average$763FlexibilityNo cancel feeOn-time76%
China AirlinesCheapest$684Average$808FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$691Average$851FlexibilityNo cancel feeOn-time69%
ANACheapest$705Average$797FlexibilityNo cancel feeOn-time80%
STARLUX AirlinesCheapest$727Average$888FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$731Average$965FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$753Average$941FlexibilityNo cancel feeOn-time74%

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