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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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SGN
ene. 14 — ene. 211
mié. 1/14
mié. 1/21
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 diciembre 15, 2025.

This Delta deal was found by Cheapflights users on 12/14. 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.
mié. 12/315:15 pmPDX - SGN
2 stops39h 05mDelta
mar. 1/132:05 pmSGN - PDX
2 stops43h 45mDelta
Deal found 12/14$905
This Delta deal was found by Cheapflights users on 12/14. 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.
mié. 12/315:15 pmPDX - SGN
2 stops39h 05mDelta
lun. 1/1211:50 pmSGN - PDX
2 stops36h 09mDelta
Deal found 12/14$1,005
This United Airlines deal was found by Cheapflights users on 12/14. 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.
mar. 12/307:45 pmPDX - SGN
3 stops36h 10mUnited Airlines
jue. 1/156:00 amSGN - PDX
2 stops23h 46mUnited Airlines
Deal found 12/14$1,009
This United Airlines deal was found by Cheapflights users on 12/14. 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.
lun. 12/297:30 amPDX - SGN
3 stops48h 25mUnited Airlines
jue. 1/156:00 amSGN - PDX
2 stops21h 33mUnited Airlines
Deal found 12/14$1,022
This Delta deal was found by Cheapflights users on 12/14. 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.
lun. 12/2912:29 pmPDX - SGN
2 stops43h 51mDelta
mié. 1/1411:50 pmSGN - PDX
2 stops31h 40mDelta
Deal found 12/14$1,044
This FlightHub deal was found by Cheapflights users on 12/13. 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. 12/307:55 pmSEA - SGN
2 stops31h 40mCathay Pacific
sáb. 2/217:15 amSGN - SEA
2 stops24h 45mCathay Pacific
Deal found 12/13$1,072
This Delta deal was found by Cheapflights users on 12/14. 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.
mar. 12/305:30 amPDX - SGN
2 stops26h 50mDelta
mié. 1/1411:50 pmSGN - PDX
2 stops34h 00mDelta
Deal found 12/14$1,077
This United Airlines deal was found by Cheapflights users on 12/14. 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.
dom. 12/145:11 pmSEA - SGN
2 stops38h 44mUnited Airlines
lun. 12/227:30 amSGN - SEA
3 stops28h 37mUnited Airlines
Deal found 12/14$1,098
This United Airlines deal was found by Cheapflights users on 12/14. 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.
mié. 12/313:54 pmPDX - SGN
3 stops40h 01mUnited Airlines
jue. 1/156:00 amSGN - PDX
2 stops23h 46mUnited Airlines
Deal found 12/14$1,112
This ScholarTrip deal was found by Cheapflights users on 12/14. 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.
dom. 12/2811:30 amSEA - SGN
1 stop20h 50mKorean Air
mié. 12/318:00 amSGN - SEA
1 stop16h 00mKorean Air
Deal found 12/14$1,115
This oojo deal was found by Cheapflights users on 12/13. 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.
sáb. 12/2712:10 amSEA - SGN
1 stop18h 50mChina Airlines
dom. 1/115:50 pmSGN - SEA
1 stop15h 20mChina Airlines
Deal found 12/13$1,126
This Delta deal was found by Cheapflights users on 12/14. 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.
lun. 12/2912:29 pmPDX - SGN
2 stops43h 51mDelta
mar. 1/132:05 pmSGN - PDX
2 stops43h 45mDelta
Deal found 12/14$1,133

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 diciembre 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$623
(lol.travel)

One-way from

$276
(FlightHub)

Popular in

June

Cheapest in

September

Average price

$1,147
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. 20% potential increase in price ($225 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 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 diciembre 15, 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

mié. 1/28

11:00 am-9:45 pm

1 stop19h 45m

Hanoi Noibai

mié. 2/4

12:20 pm-9:00 am

1 stop35h 40m

$669

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

lun. 1/19

7:30 pm-10:55 pm

3 stops36h 25m

Ho Chi Minh City

lun. 2/2

6:00 am-12:56 am

3 stops33h 56m

$675

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

jue. 1/15

9:25 am-10:55 pm

2 stops46h 30m

Ho Chi Minh City

jue. 1/29

6:00 am-9:12 pm

3 stops30h 12m

$679

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

vie. 1/16

5:10 pm-10:55 pm

2 stops38h 45m

Ho Chi Minh City

jue. 1/29

6:00 am-1:20 pm

2 stops22h 20m

$683

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

dom. 1/18

12:35 pm-10:55 pm

3 stops43h 20m

Ho Chi Minh City

sáb. 1/31

6:00 am-6:28 pm

3 stops27h 28m

$683

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

mar. 3/3

11:00 am-11:20 pm

1 stop21h 20m

Ho Chi Minh City

sáb. 3/14

8:00 am-2:41 pm

2 stops44h 41m

$684

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

dom. 1/18

11:00 am-9:45 pm

1 stop19h 45m

Hanoi Noibai

mar. 1/27

11:05 pm-9:00 am

1 stop24h 55m

$687

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

jue. 1/15

9:25 am-10:55 pm

2 stops46h 30m

Ho Chi Minh City

vie. 1/23

6:00 am-4:29 pm

2 stops25h 29m

$687

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

mar. 3/3

2:00 pm-11:20 pm

2 stops42h 20m

Ho Chi Minh City

vie. 3/13

8:00 am-5:09 pm

2 stops23h 09m

$689

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

sáb. 1/24

7:15 am-10:25 pm

2 stops24h 10m

Ho Chi Minh City

lun. 2/9

2:05 pm-4:54 pm

2 stops41h 49m

$689

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

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, January is the cheapest month in which you can book a flight from State of Washington to Vietnam (average of $542). 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.

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 diciembre 15, 2025.

A simple way to save on the total cost of your ticket is to fly from State of Washington to Vietnam in the evening. If you’re flexible enough to do this you can expect to save up to 29% 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 45m. 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 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, January is the cheapest month in which you can book a flight from State of Washington to Vietnam (average of $542). 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

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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 diciembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$474Average$1,085FlexibilityNo cancel feeOn-time81%
Singapore AirlinesCheapest$509Average$728FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$544Average$693FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$627Average$765FlexibilityNo cancel feeOn-time76%
China AirlinesCheapest$683Average$808FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$691Average$837FlexibilityNo cancel feeOn-time69%
ANACheapest$692Average$788FlexibilityNo cancel feeOn-time80%
STARLUX AirlinesCheapest$726Average$886FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$728Average$946FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$750Average$931FlexibilityNo cancel feeOn-time74%

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