Vietnam

$378+ Cheap flights from Seattle (SEA) 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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SGN
jun 10 — jun 171
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Vietnam with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Seattle to Vietnam

Cheapest flights from Seattle to Vietnam
Explore the most affordable flight options available from Seattle to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on maio 11, 2026.

This FlightHub deal was found by Cheapflights users on 5/8. 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.
ter 10/2010:15 am
SEA
-
DAD
1 stop33h 40m
Singapore Airlines
sáb 11/711:50 am
DAD
-
SEA
1 stop34h 20m
Singapore Airlines
Deal found 5/8$657
This FlightHub deal was found by Cheapflights users on 5/6. 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.
ter 10/2010:15 am
SEA
-
DAD
1 stop33h 40m
Singapore Airlines
sáb 10/3111:50 am
DAD
-
SEA
1 stop34h 20m
Singapore Airlines
Deal found 5/6$660
This FlightHub deal was found by Cheapflights users on 5/9. 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 10/310:15 am
SEA
-
DAD
1 stop33h 40m
Singapore Airlines
qui 10/1511:55 am
DAD
-
SEA
1 stop34h 50m
Singapore Airlines
Deal found 5/9$705
This FlightHub deal was found by Cheapflights users on 5/7. 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 9/612:10 am
SEA
-
HAN
1 stop22h 05m
Asiana Airlines
qua 9/3011:30 pm
HAN
-
SEA
1 stop29h 45m
Asiana Airlines
Deal found 5/7$737
This Asiana Airlines deal was found by Cheapflights users on 5/8. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 8/3112:10 am
SEA
-
HAN
1 stop22h 05m
Asiana Airlines
seg 9/711:30 pm
HAN
-
SEA
1 stop29h 45m
Asiana Airlines
Deal found 5/8$767
This Justfly.com deal was found by Cheapflights users on 5/7. 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.
qui 8/1312:10 am
SEA
-
HAN
1 stop31h 50m
Asiana Airlines
seg 9/211:25 pm
HAN
-
SEA
1 stop15h 50m
Asiana Airlines
Deal found 5/7$774
This Justfly.com deal was found by Cheapflights users on 5/8. 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.
sex 8/2110:15 am
SEA
-
DAD
1 stop34h 50m
Singapore Airlines
sex 9/2511:55 am
DAD
-
SEA
1 stop34h 50m
Singapore Airlines
Deal found 5/8$774
This oojo deal was found by Cheapflights users on 5/8. 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.
qui 8/1312:10 am
SEA
-
HAN
1 stop22h 05m
Asiana Airlines
dom 9/2011:30 pm
HAN
-
SEA
1 stop29h 45m
Asiana Airlines
Deal found 5/8$776
This oojo deal was found by Cheapflights users on 5/8. 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.
seg 11/1612:10 am
SEA
-
HAN
1 stop21h 00m
Asiana Airlines
ter 12/11:30 pm
HAN
-
SEA
1 stop15h 25m
Asiana Airlines
Deal found 5/8$793
This Korean Air deal was found by Cheapflights users on 5/7. 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.
qui 10/2212:50 pm
SEA
-
HAN
1 stop31h 45m
Korean Air
seg 10/2612:20 pm
HAN
-
SEA
1 stop35h 40m
Korean Air
Deal found 5/7$800
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 9/612:10 am
SEA
-
HAN
1 stop22h 05m
Asiana Airlines
sex 9/181:25 pm
HAN
-
SEA
1 stop15h 50m
Asiana Airlines
Deal found 5/10$804
This Korean Air deal was found by Cheapflights users on 5/8. 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.
ter 9/17:20 am
SEA
-
HAN
2 stops37h 15m
Korean Air
seg 9/711:10 pm
HAN
-
SEA
1 stop25h 30m
Korean Air
Deal found 5/8$805

Find flight deals from Seattle to Vietnam

Keep the following information in mind while searching for Seattle to Vietnam flight deals. Data was last updated maio 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$657
(FlightHub)

One-way from

$378
(oojo)

Popular in

June

Cheapest in

April

Average price

$814
Provider with most accurate pricing for Seattle/Tacoma Intl-Ho Chi Minh City flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Ho Chi Minh City flights.
From Seattle/Tacoma Intl to Vietnam
One-way flight from Seattle/Tacoma Intl to Vietnam
Highest demand for flights based on searches. 17% potential increase in price ($191 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
Average for round-trip flights in May 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle 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 maio 11, 2026.
Use the filters below to find and compare flights from Seattle to Vietnam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

qui 10/22

12:50 pm-10:35 am

1 stop31h 45m

Hanoi Noibai

seg 10/26

11:05 pm-10:00 am

1 stop24h 55m

$800

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

dom 10/11

10:15 am-3:25 pm

1 stop39h 10m

Hanoi Noibai

qua 10/28

12:45 pm-8:10 am

1 stop33h 25m

$811

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

sex 9/11

12:10 am-10:50 pm

1 stop32h 40m

Ho Chi Minh City

ter 9/22

12:05 pm-3:15 pm

1 stop17h 10m

$818

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

qui 9/10

1:00 pm-9:35 pm

1 stop18h 35m

Hanoi Noibai

seg 9/14

11:10 pm-1:37 pm

1 stop28h 27m

$876

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

qui 10/29

12:00 pm-9:45 pm

1 stop19h 45m

Hanoi Noibai

seg 11/2

11:05 pm-9:00 am

1 stop24h 55m

$880
Quickest round-trip

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

sex 11/6

12:10 am-11:00 am

1 stop19h 50m

Ho Chi Minh City

seg 12/7

12:10 pm-1:55 pm

1 stop16h 45m

$883

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

qui 9/10

1:00 pm-10:35 am

1 stop31h 35m

Hanoi Noibai

dom 9/20

11:10 pm-1:37 pm

1 stop28h 27m

$900

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

qui 9/10

8:38 am-10:15 pm

2 stops23h 37m

Hanoi Noibai

dom 9/20

11:35 pm-11:24 pm

2 stops37h 49m

$946

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

sex 8/14

7:15 am-9:35 pm

2 stops24h 20m

Hanoi Noibai

seg 9/21

11:10 pm-3:24 pm

2 stops30h 14m

$975

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

qui 10/1

8:40 am-10:15 pm

2 stops23h 35m

Hanoi Noibai

sáb 10/31

12:25 am-12:21 am

2 stops37h 56m

$982

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/8

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Seattle to Vietnam

Have a flexible travel schedule? Discover the best time to fly to Vietnam from Seattle 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 Seattle to Vietnam

How far ahead should I book a flight from Seattle to Vietnam?

The price you pay for your flight from Seattle to Vietnam may vary depending on when you book. For the best chance of a lower fare, look to book 89 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Vietnam?

Currently, May is the cheapest month in which you can book a flight from Seattle to Vietnam (average of $432). Flying from Seattle to Vietnam in July is currently the most expensive (average of $1,452). 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.

Reviews of airlines servicing Vietnam

Get insights into the airlines that provide service to Vietnam. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Vietnam. Reviews last updated maio 11, 2026.
Get a feel of what it's like to fly with STARLUX Airlines,EVA Air, andKorean Air from Seattle to Vietnam by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

9.0

Crew

9.2

Comfort

8.9

Entertainment

8.8

Overall

8.9

Food

8.7

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again

Boarding

9.0

Crew

9.2

Comfort

8.9

Entertainment

8.8

Overall

8.9

Food

8.7

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again

Boarding

9.0

Crew

9.2

Comfort

8.9

Entertainment

8.8

Overall

8.9

Food

8.7

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again

Boarding

9.0

Crew

9.2

Comfort

8.9

Entertainment

8.8

Overall

8.9

Food

8.7

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again

Boarding

9.0

Crew

9.2

Comfort

8.9

Entertainment

8.8

Overall

8.9

Food

8.7

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again

Boarding

9.0

Crew

9.2

Comfort

8.9

Entertainment

8.8

Overall

8.9

Food

8.7

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again

Related info for your journey

Find useful and relevant information for your journey from Seattle to Vietnam. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Seattle to Vietnam?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Vietnam.

  • How long is the flight from Seattle to Vietnam?

    A quick flight from Seattle to Vietnam can take about 31h 45m. Korean Air provides one of the quickest options available for as low as $800. There are 6827 mi between Seattle and Vietnam. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Seattle to Vietnam one-way?

    For one-way options, check prices for Singapore Airlines. According to our data, you can fly for as low as $243. Users have also found prices from $307 and $310 on ANA and United Airlines, respectively.

  • What are the most popular routes from Seattle to Vietnam?

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Vietnam?

    Currently, May is the cheapest month in which you can book a flight from Seattle to Vietnam (average of $432). Flying from Seattle to Vietnam in July is currently the most expensive (average of $1,452). 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.

Top 10 airlines flying from Seattle to Vietnam

Discover the top 10 airlines that operate flights from Seattle 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 maio 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$400Average$884FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$432Average$875FlexibilityNo cancel feeOn-time81%
Singapore AirlinesCheapest$493Average$668FlexibilityNo cancel feeOn-time81%
Philippine AirlinesCheapest$544Average$691FlexibilityNo cancel feeOn-time60%
STARLUX AirlinesCheapest$567Average$860FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$606Average$931FlexibilityNo cancel feeOn-time72%
China AirlinesCheapest$614Average$789FlexibilityNo cancel feeOn-time70%
Asiana AirlinesCheapest$614Average$742FlexibilityNo cancel feeOn-time76%
ANACheapest$616Average$784FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$666Average$796FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.