HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Vietnam

$333+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SGN
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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

Keep the following information in mind while searching for Seattle to Vietnam flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$729
(United Airlines)

One-way from

$333
(FlightHub)

Popular in

June

Cheapest in

March

Average price

$968
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 Seattle/Tacoma Intl to Vietnam
Search Deals
One-way flight from Seattle/Tacoma Intl to Vietnam
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($257 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

Find 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 May 1, 2025.

This FlightHub deal was found by Cheapflights users on 4/30. 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.
Wed 9/2411:35 pmSEA - HAN
1 stop35h 10mPhilippine Airlines
Tue 10/212:30 amHAN - SEA
1 stop30h 45mPhilippine Airlines
Deal found 4/30$692
This oojo deal was found by Cheapflights users on 4/30. 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.
Wed 9/31:30 pmSEA - HAN
1 stop18h 20mJapan Airlines
Fri 9/197:20 pmHAN - SEA
2 stops29h 05mJapan Airlines
Deal found 4/30$720
This FlightHub deal was found by Cheapflights users on 4/30. 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 9/2510:15 amSEA - DAD
1 stop39h 30mSingapore Airlines
Fri 10/244:35 pmDAD - SEA
1 stop30h 10mSingapore Airlines
Deal found 4/30$720
This FlightHub deal was found by Cheapflights users on 4/30. 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.
Sun 8/3110:15 amSEA - HAN
1 stop35h 15mSingapore Airlines
Sat 9/2712:40 pmHAN - SEA
1 stop34h 05mSingapore Airlines
Deal found 4/30$721
This Gurufare deal was found by Cheapflights users on 4/30. 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.
Thu 9/254:30 pmSEA - DAD
2 stops48h 40mMultiple Airlines
Thu 10/231:10 amDAD - SEA
2 stops28h 59mMultiple Airlines
Deal found 4/30$726
This United Airlines deal was found by Cheapflights users on 5/1. 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 5/85:05 amSEA - HAN
2 stops27h 10mUnited Airlines
Tue 5/2011:35 pmHAN - SEA
1 stop28h 50mUnited Airlines
Deal found 5/1$729
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Wed 10/153:23 pmSEA - SGN
2 stops40h 32mUnited Airlines
Tue 11/46:00 amSGN - SEA
3 stops29h 49mUnited Airlines
Deal found 4/30$731
This KAYAK deal was found by Cheapflights users on 4/30. 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.
Sun 9/141:45 pmSEA - SGN
2 stops42h 10mANA
Wed 10/1511:15 pmSGN - SEA
1 stop29h 10mANA
Deal found 4/30$735
This oojo deal was found by Cheapflights users on 5/1. 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.
Thu 10/231:10 amSEA - SGN
1 stop18h 30mChina Airlines
Sun 11/1611:00 amSGN - SEA
1 stop22h 15mChina Airlines
Deal found 5/1$736
This CrystalTravel deal was found by Cheapflights users on 4/30. 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.
Sat 5/32:15 pmSEA - SGN
1 stop18h 30mAsiana Airlines
Sat 5/2412:05 amSGN - SEA
1 stop26h 25mAsiana Airlines
Deal found 4/30$739
This ANA deal was found by Cheapflights users on 4/29. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/16:15 amSEA - SGN
2 stops28h 00mMultiple Airlines
Sun 5/1811:15 pmSGN - SEA
1 stop29h 10mMultiple Airlines
Deal found 4/29$746
This STARLUX Airlines deal was found by Cheapflights users on 4/30. 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 STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/131:15 amSEA - SGN
1 stop19h 00mSTARLUX Airlines
Fri 10/36:25 pmSGN - SEA
1 stop35h 45mSTARLUX Airlines
Deal found 4/30$752

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 May 1, 2025.
Use the filters below to find and compare flights from Seattle to Vietnam that are best for you.

Fly from

Seattle

Fly to

Vietnam

Route

Depart

Return

Price

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Wed 9/24

11:35 pm-12:45 am

1 stop35h 10m

Hanoi Noibai

Tue 10/21

2:30 am-7:15 pm

1 stop30h 45m

$692

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Wed 9/3

1:30 pm-9:50 pm

1 stop18h 20m

Hanoi Noibai

Fri 9/19

7:20 pm-10:25 am

2 stops29h 05m

$720

SeattleDa Nang

SEA - DAD

SEADAD

Seattle/Tacoma Intl

Thu 9/25

10:15 am-3:45 pm

1 stop39h 30m

Da Nang

Fri 10/24

4:35 pm-8:45 am

1 stop30h 10m

$720

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Sun 8/31

10:15 am-11:30 am

1 stop35h 15m

Hanoi Noibai

Sat 9/27

12:40 pm-8:45 am

1 stop34h 05m

$721

SeattleDa Nang

SEA - DAD

SEADAD

Seattle/Tacoma Intl

Thu 9/25

4:30 pm-7:10 am

2 stops48h 40m

Da Nang

Thu 10/23

1:10 am-4:09 pm

2 stops28h 59m

$726

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Wed 10/15

3:23 pm-9:55 pm

2 stops40h 32m

Ho Chi Minh City

Tue 11/4

6:00 am-8:49 pm

3 stops29h 49m

$731

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 9/23

6:45 am-10:15 pm

2 stops25h 30m

Hanoi Noibai

Sun 10/26

12:25 am-8:49 pm

3 stops34h 24m

$732

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Sun 9/14

1:45 pm-9:55 pm

2 stops42h 10m

Ho Chi Minh City

Wed 10/15

11:15 pm-2:25 pm

1 stop29h 10m

$735

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Thu 10/23

1:10 am-9:40 am

1 stop18h 30m

Ho Chi Minh City

Sun 11/16

11:00 am-6:15 pm

1 stop22h 15m

$736

SeattleHo Chi Minh City

SEA - SGN

SEASGN

Seattle/Tacoma Intl

Wed 10/15

2:15 pm-11:05 am

1 stop30h 50m

Ho Chi Minh City

Wed 2/18

12:10 pm-12:35 pm

1 stop39h 25m

$739

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 60 results
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

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

Currently, March is the cheapest month in which you can book a flight from Seattle to Vietnam (average of $921). Flying from Seattle to Vietnam in June is currently the most expensive (average of $1,538). 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 SEA to VN?

Find hourly flight availability from Seattle 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 May 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Vietnam as you normally would.

Rainfall in Vietnam by month

Plan your trip to Vietnam by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Vietnam ranges from 0.0 - 13.4 inches per month. September is typically the wettest month, when rainfall can reach 13.4 in. February is typically the driest time to visit Vietnam when rainfall is around 0.0 in.

Temperature in Vietnam by month

Plan your trip to Vietnam by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Vietnam, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

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 May 1, 2025.
To help decide which airline to fly from Seattle to Vietnam, see what other customers have to say about STARLUX Airlines, EVA Air and Korean Air. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Food

8.9

Crew

9.3

Entertainment

9.0

Boarding

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
STARLUX Airlines
9.1
Wonderful
161 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Food

8.9

Crew

9.3

Entertainment

9.0

Boarding

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
EVA Air
8.4
Very good
1,186 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Food

8.9

Crew

9.3

Entertainment

9.0

Boarding

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Korean Air
8.4
Very good
1,068 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Food

8.9

Crew

9.3

Entertainment

9.0

Boarding

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Japan Airlines
8.3
Very good
1,464 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Food

8.9

Crew

9.3

Entertainment

9.0

Boarding

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
China Airlines
8.3
Very good
732 reviews
STARLUX Airlines
9.1
Wonderful
161 reviews

Comfort

9.0

Food

8.9

Crew

9.3

Entertainment

9.0

Boarding

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.

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.

  • 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 $333. Users have also found prices from $383 and $394 on Japan Airlines and United Airlines, respectively.

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

    The most popular flight routes from Seattle to Vietnam are Seattle/Tacoma Intl - Ho Chi Minh City, Seattle/Tacoma Intl - Hanoi Noibai and Seattle/Tacoma Intl - Da Nang.

  • 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, March is the cheapest month in which you can book a flight from Seattle to Vietnam (average of $921). Flying from Seattle to Vietnam in June is currently the most expensive (average of $1,538). 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 Seattle to Vietnam

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Narita flights
Seattle to Haneda flights
Seattle to Suvarnabhumi flights
Seattle to Incheon Intl flights
Seattle to Taiwan Taoyuan Intl flights
Seattle to Manila flights
Portland to Narita flights
Portland to Haneda flights
Seattle to Hongqiao Intl flights
Seattle to Ho Chi Minh City flights
Seattle to New Delhi flights
Seattle to Pu Dong flights
Seattle to Sung Shan flights
Seattle to Capital flights
Seattle to Gimpo Intl flights
Seattle to Kansai Intl flights
Seattle to Singapore flights
Seattle to Hyderabad flights
Portland to Suvarnabhumi flights
Seattle to Hong Kong flights
Seattle to Itami flights
Seattle to Beijing Daxing Intl flights
Seattle to Denpasar flights
Seattle to Mumbai flights
Seattle to Soekarno-Hatta Intl flights
Seattle to Chennai flights
Seattle to Phnom Penh flights
Seattle to Kobe flights
Seattle to Bangalore flights
Seattle to Cebu City flights
Seattle to Chiang Mai flights
Portland to Incheon Intl flights
Portland to Ho Chi Minh City flights
Seattle to Angeles City flights
Seattle to Hanoi flights
Portland to Kansai Intl flights
Seattle to Phuket City flights
Seattle to Kathmandu flights
Seattle to Kuala Lumpur Intl flights
Seattle to Da Nang flights
Portland to Manila flights
Seattle to Don Mueang Intl flights
Seattle to Malé flights
Portland to Hong Kong flights
Seattle to Chitose flights
Seattle to Chongqing flights
Portland to Gimpo Intl flights
Seattle to Cochin flights
Spokane to Narita flights
Seattle to Colombo flights

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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$628Average$1,034FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$639Average$808FlexibilityNo cancel feeOn-time76%
Philippine AirlinesCheapest$688Average$771FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$691Average$1,178FlexibilityNo cancel feeOn-time69%
ANACheapest$705Average$879FlexibilityNo cancel feeOn-time80%
China AirlinesCheapest$719Average$854FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$727Average$971FlexibilityNo cancel feeOn-time81%
DeltaCheapest$736Average$958FlexibilityNo cancel feeOn-timeN/A
Japan AirlinesCheapest$765Average$1,022FlexibilityNo cancel feeOn-time79%
STARLUX AirlinesCheapest$778Average$927FlexibilityNo cancel feeOn-timeN/A

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.