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$277+ 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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SGN
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
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Cheap flight deals from Washington to Vietnam

Keep the following information in mind while searching for Washington to Vietnam flight deals. Data was last updated October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$594
(FlightHub)

One-way from

$277
(FlightHub)

Popular in

June

Cheapest in

September

Average price

$772
Provider with most accurate pricing for Seattle/Tacoma Intl-Ho Chi Minh City flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Ho Chi Minh City flights.
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From Washington to Vietnam
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One-way flight from Washington to Vietnam
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Highest demand for flights based on searches. 20% potential increase in price ($229 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 14, 2025.

This Trip.com deal was found by Cheapflights users on 10/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:30 pmSEA - HAN
1 stop37h 15mPhilippine Airlines
Tue 11/182:50 amHAN - SEA
1 stop30h 50mPhilippine Airlines
Deal found 10/13$632
This Trip.com deal was found by Cheapflights users on 10/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/169:30 pmSEA - HAN
1 stop37h 15mPhilippine Airlines
Sat 11/222:50 amHAN - SEA
1 stop30h 50mPhilippine Airlines
Deal found 10/12$633
This oojo deal was found by Cheapflights users on 10/12. 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.
Sun 11/99:30 pmSEA - HAN
1 stop37h 15mPhilippine Airlines
Sat 11/152:50 amHAN - SEA
1 stop30h 50mPhilippine Airlines
Deal found 10/12$656
This FlightHub deal was found by Cheapflights users on 10/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1512:10 amSEA - HAN
1 stop21h 00mAsiana Airlines
Sat 12/131:30 pmHAN - SEA
1 stop15h 25mAsiana Airlines
Deal found 10/14$661
This FlightHub deal was found by Cheapflights users on 10/11. 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.
Tue 10/212:15 pmSEA - HAN
1 stop17h 45mAsiana Airlines
Tue 10/281:30 pmHAN - SEA
1 stop15h 25mAsiana Airlines
Deal found 10/11$666
This Gurufare deal was found by Cheapflights users on 10/13. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/29:30 pmSEA - HAN
1 stop37h 15mPhilippine Airlines
Sat 11/222:50 amHAN - SEA
1 stop30h 50mPhilippine Airlines
Deal found 10/13$672
This Trip.com deal was found by Cheapflights users on 10/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/269:30 pmSEA - DAD
1 stop22h 55mPhilippine Airlines
Wed 12/312:25 pmDAD - SEA
1 stop21h 15mPhilippine Airlines
Deal found 10/11$677
This CrystalTravel deal was found by Cheapflights users on 10/13. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/261:10 amSEA - SGN
1 stop25h 40mChina Airlines
Thu 11/2711:00 amSGN - SEA
1 stop22h 10mChina Airlines
Deal found 10/13$682
This Gotogate deal was found by Cheapflights users on 10/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/232:15 pmSEA - SGN
1 stop30h 50mAsiana Airlines
Tue 12/2312:10 pmSGN - SEA
1 stop16h 45mAsiana Airlines
Deal found 10/13$685
This FlightHub deal was found by Cheapflights users on 10/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:10 amSEA - SGN
1 stop18h 50mChina Airlines
Thu 11/205:50 pmSGN - SEA
1 stop15h 20mChina Airlines
Deal found 10/14$686
This FlightHub deal was found by Cheapflights users on 10/12. 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.
Thu 10/231:10 amSEA - SGN
1 stop25h 10mChina Airlines
Thu 12/185:50 pmSGN - SEA
1 stop15h 20mChina Airlines
Deal found 10/12$687
This FlightHub deal was found by Cheapflights users on 10/13. 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.
Sat 11/112:10 amSEA - HAN
1 stop32h 15mAsiana Airlines
Thu 11/201:30 pmHAN - SEA
1 stop15h 25mAsiana Airlines
Deal found 10/13$689

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 October 14, 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

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sun 3/15

12:10 am-10:50 pm

1 stop32h 40m

Ho Chi Minh City

Wed 3/18

12:10 pm-2:55 pm

1 stop16h 45m

$694

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sun 3/1

3:15 pm-12:50 pm

2 stops30h 35m

Ho Chi Minh City

Tue 3/10

2:05 pm-10:00 am

1 stop33h 55m

$700

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sat 1/24

2:00 pm-10:25 pm

2 stops41h 25m

Ho Chi Minh City

Sat 2/7

11:50 pm-9:00 am

1 stop24h 10m

$711

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Tue 11/11

3:40 pm-9:50 pm

1 stop39h 10m

Ho Chi Minh City

Wed 11/26

6:00 am-9:13 pm

3 stops30h 13m

$717

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Tue 11/11

3:40 pm-9:50 pm

1 stop39h 10m

Ho Chi Minh City

Tue 11/18

6:00 am-8:51 pm

3 stops29h 51m

$717

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Tue 12/30

5:02 am-12:15 am

2 stops28h 13m

Ho Chi Minh City

Wed 1/14

6:00 am-1:20 pm

2 stops22h 20m

$721

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Wed 10/29

5:30 am-10:55 pm

3 stops27h 25m

Ho Chi Minh City

Tue 11/11

6:00 am-9:33 pm

3 stops30h 33m

$725

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Tue 11/4

5:30 am-10:55 pm

3 stops26h 25m

Ho Chi Minh City

Tue 11/11

6:00 am-10:30 pm

2 stops31h 30m

$725

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sat 11/8

12:10 am-4:50 pm

1 stop25h 40m

Ho Chi Minh City

Mon 11/24

11:00 am-6:10 pm

1 stop22h 10m

$743

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Fri 1/30

7:20 am-12:50 pm

2 stops38h 30m

Ho Chi Minh City

Thu 3/5

2:05 pm-4:14 pm

2 stops41h 09m

$746

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

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, September 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 $946). 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 October 14, 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 19% 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 30h 35m. 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?

    $317 is the cheapest one-way deal found within the past few days, from Philippine Airlines. You may also be able to find cheap deals on Asiana Airlines and Korean Air, with prices starting from $357 and $365, 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, September 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 $946). 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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$509Average$807FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$617Average$709FlexibilityNo cancel feeOn-time60%
Asiana AirlinesCheapest$628Average$780FlexibilityNo cancel feeOn-time76%
ANACheapest$688Average$800FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$691Average$871FlexibilityNo cancel feeOn-time69%
China AirlinesCheapest$692Average$833FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$708Average$1,092FlexibilityNo cancel feeOn-time81%
DeltaCheapest$736Average$933FlexibilityNo cancel feeOn-timeN/A
STARLUX AirlinesCheapest$738Average$894FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$762Average$953FlexibilityNo cancel feeOn-time74%

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