What is the cheapest airline that flies from Seattle/Tacoma Intl to Vietnam?

Philippine Airlines, Asiana Airlines, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Vietnam

What airlines fly to Vietnam?

Asiana Airlines, China Airlines and EVA Air are the top three most popular airlines that fly to Vietnam from Seattle according to our data. Asiana Airlines is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Vietnam. Keep in mind that there are 13 different airlines that fly to Vietnam on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Vietnam?

Prices for flights from Seattle/Tacoma Intl Airport to Vietnam are updated daily.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Vietnam?

As of May 2026, there are 13 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Vietnam.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Vietnam?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Vietnam.

What documentation or ID do you need to fly to Vietnam?

The travel and health documents you'll need for your trip to Vietnam may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Vietnam. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$374 Cheap Flights from Seattle to Vietnam in 2026

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Find the cheapest flights from Seattle to Vietnam

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:15 am - 5:30 pm

SEA

DAD

41h 15m

1 stop

4:30 pm - 8:10 am

DAD

SEA

29h 40m

1 stop

$658Singapore Airlines

Thu, Oct 8 - Thu, Oct 29

10:15 am - 9:55 am

SEA

DAD

33h 40m

1 stop

11:50 am - 8:10 am

DAD

SEA

34h 20m

1 stop

$660Singapore Airlines

Tue, Oct 20 - Sat, Oct 31

12:10 am - 10:00 pm

SEA

HAN

31h 50m

1 stop

11:30 pm - 3:15 pm

HAN

SEA

29h 45m

1 stop

$737Asiana Airlines

Mon, Aug 31 - Mon, Sep 7

12:10 am - 12:15 pm

SEA

HAN

22h 05m

1 stop

11:30 pm - 3:15 pm

HAN

SEA

29h 45m

1 stop

$767Asiana Airlines

Mon, Aug 31 - Mon, Sep 7

1:00 pm - 9:35 pm

SEA

HAN

18h 35m

1 stop

11:10 pm - 1:37 pm

HAN

SEA

28h 27m

1 stop

$776Delta

Wed, Sep 9 - Tue, Sep 29

7:20 am - 10:35 am

SEA

HAN

37h 15m

2 stops

11:10 pm - 10:40 am

HAN

SEA

25h 30m

1 stop

$785Korean Air

Tue, Sep 1 - Mon, Sep 7

12:50 pm - 10:35 am

SEA

HAN

31h 45m

1 stop

11:10 pm - 3:24 pm

HAN

SEA

30h 14m

2 stops

$791Korean Air

Thu, Sep 10 - Mon, Sep 14

1:15 am - 4:05 pm

SEA

PQC

24h 50m

1 stop

5:05 pm - 4:10 pm

PQC

SEA

37h 05m

1 stop

$1,053STARLUX Airlines

Sat, Oct 17 - Wed, Oct 21

1:15 am - 4:05 pm

SEA

PQC

24h 50m

1 stop

6:40 pm - 4:05 pm

PQC

SEA

35h 25m

1 stop

$1,083STARLUX Airlines

Wed, Oct 21 - Mon, Oct 26

1:05 pm - 10:50 pm

SEA

PQC

19h 45m

1 stop

12:10 am - 11:00 am

PQC

SEA

24h 50m

1 stop

$1,135Delta

Thu, Aug 20 - Sat, Aug 29

Alaska Airlines flights from Seattle to Vietnam

Our best Alaska Airlines deals on Seattle to Vietnam flight tickets

Alaska Airlines

Sep 9

SEA8:40 amSeattle/Tacoma Intl

23h 05m

2 stops

SGN9:45 pmHo Chi Minh City

Sep 16

SGN8:00 amHo Chi Minh City

16h 35m

1 stop

SEA10:35 amSeattle/Tacoma Intl

$832

Alaska Airlines

Sep 9

SEA7:15 amSeattle/Tacoma Intl

24h 30m

2 stops

SGN9:45 pmHo Chi Minh City

Sep 16

SGN8:00 amHo Chi Minh City

26h 32m

2 stops

SEA8:32 pmSeattle/Tacoma Intl

$842

Alaska Airlines

Sep 2

SEA2:15 pmSeattle/Tacoma Intl

41h 30m

2 stops

SGN9:45 pmHo Chi Minh City

Sep 17

SGN8:00 amHo Chi Minh City

16h 35m

1 stop

SEA10:35 amSeattle/Tacoma Intl

$845

Asiana Airlines flights from Seattle to Vietnam

Our best Asiana Airlines deals on Seattle to Vietnam flight tickets

Asiana Airlines

Aug 31

SEA12:10 amSeattle/Tacoma Intl

31h 50m

1 stop

HAN10:00 pmHanoi Noibai

Sep 7

HAN11:30 pmHanoi Noibai

29h 45m

1 stop

SEA3:15 pmSeattle/Tacoma Intl

$737

Asiana Airlines

Aug 31

SEA12:10 amSeattle/Tacoma Intl

22h 05m

1 stop

HAN12:15 pmHanoi Noibai

Sep 7

HAN11:30 pmHanoi Noibai

29h 45m

1 stop

SEA3:15 pmSeattle/Tacoma Intl

$767

Asiana Airlines

Aug 21

SEA12:10 amSeattle/Tacoma Intl

32h 40m

1 stop

SGN10:50 pmHo Chi Minh City

Sep 23

SGN12:10 amHo Chi Minh City

29h 05m

1 stop

SEA3:15 pmSeattle/Tacoma Intl

$772

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleDa Nang

SEA - DAD

SEADAD

Seattle/Tacoma Intl

Thu 10/8

10:15 am-5:30 pm

1 stop41h 15m

Da Nang

Thu 10/29

4:30 pm-8:10 am

1 stop29h 40m

$658

SeattleDa Nang

SEA - DAD

SEADAD

Seattle/Tacoma Intl

Tue 10/20

10:15 am-9:55 am

1 stop33h 40m

Da Nang

Sat 10/31

11:50 am-8:10 am

1 stop34h 20m

$660

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 8/31

12:10 am-10:00 pm

1 stop31h 50m

Hanoi Noibai

Mon 9/7

11:30 pm-3:15 pm

1 stop29h 45m

$737

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Mon 8/31

12:10 am-12:15 pm

1 stop22h 05m

Hanoi Noibai

Mon 9/7

11:30 pm-3:15 pm

1 stop29h 45m

$767

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Wed 9/9

1:00 pm-9:35 pm

1 stop18h 35m

Hanoi Noibai

Tue 9/29

11:10 pm-1:37 pm

1 stop28h 27m

$776

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Tue 9/1

7:20 am-10:35 am

2 stops37h 15m

Hanoi Noibai

Mon 9/7

11:10 pm-10:40 am

1 stop25h 30m

$785

SeattleHanoi

SEA - HAN

SEAHAN

Seattle/Tacoma Intl

Thu 9/10

12:50 pm-10:35 am

1 stop31h 45m

Hanoi Noibai

Mon 9/14

11:10 pm-3:24 pm

2 stops30h 14m

$791

SeattlePhu Quoc

SEA - PQC

SEAPQC

Seattle/Tacoma Intl

Sat 10/17

1:15 am-4:05 pm

1 stop24h 50m

Phu Quoc Duong Dang

Wed 10/21

5:05 pm-4:10 pm

1 stop37h 05m

$1,053

SeattlePhu Quoc

SEA - PQC

SEAPQC

Seattle/Tacoma Intl

Wed 10/21

1:15 am-4:05 pm

1 stop24h 50m

Phu Quoc Duong Dang

Mon 10/26

6:40 pm-4:05 pm

1 stop35h 25m

$1,083

Quickest round-trip

SeattlePhu Quoc

SEA - PQC

SEAPQC

Seattle/Tacoma Intl

Thu 8/20

1:05 pm-10:50 pm

1 stop19h 45m

Phu Quoc Duong Dang

Sat 8/29

12:10 am-11:00 am

1 stop24h 50m

$1,135

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Vietnam

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Vietnam?

The month of May is, on average, the cheapest month to fly to Vietnam from Seattle, with most prices found around $432. If you don’t want to visit Vietnam in May, then you should wait until April to fly from Seattle, when ticket prices are also cheap, with an average price of $474.

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

You are more likely to see cheaper flights to Vietnam from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Vietnam for around $877 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Vietnam from Seattle for as low as $698 on momondo.

Can stopping save me money on Seattle to Vietnam flights?

You could potentially save up to 27% on your flight if you consider stops on a Seattle to Vietnam flight.

Cheap Seattle to Vietnam flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Vietnam

Fastest flight time	19h 05m
Direct flights	None

The fastest flight from Seattle to Vietnam takes 19h 05m

There are no direct flights from Seattle to Vietnam. There are no popular flight routes from Seattle to Vietnam.

Search flight deals

Frequently asked questions about flying from Seattle to Vietnam

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Vietnam?
Prices for flights from Seattle/Tacoma Intl Airport to Vietnam are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Vietnam?
As of May 2026, there are 13 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Vietnam.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Vietnam?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Vietnam.
What documentation or ID do you need to fly to Vietnam?
The travel and health documents you'll need for your trip to Vietnam may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Vietnam. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Seattle to Vietnam

Compare and see reviews for airlines that fly from Seattle to Vietnam with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $400	Free Cancellation	Rating 7.9 8,458 reviews	Search Delta flights
Korean Air	PriceFrom $432	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air flights
Singapore Airlines	PriceFrom $493	Free Cancellation	Rating 8.2 1,511 reviews	Search Singapore Airlines flights
Philippine Airlines	PriceFrom $544	Free Cancellation	Rating 7.3 994 reviews	Search Philippine Airlines flights
STARLUX Airlines	PriceFrom $567	Free Cancellation	Rating 8.9 309 reviews	Search STARLUX Airlines flights
Cathay Pacific	PriceFrom $606	Free Cancellation	Rating 7.6 1,318 reviews	Search Cathay Pacific flights
Asiana Airlines	PriceFrom $614	Free Cancellation	Rating 8.1 530 reviews	Search Asiana Airlines flights
China Airlines	PriceFrom $614	Free Cancellation	Rating 8.3 822 reviews	Search China Airlines flights
ANA	PriceFrom $616	Free Cancellation	Rating 8.3 1,207 reviews	Search ANA flights
United Airlines	PriceFrom $666	Free Cancellation	Rating 7.4 9,694 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Vietnam?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Vietnam from Seattle.

Can I find flights from Seattle to Vietnam with flexible booking policies on momondo?

Flights from Seattle to Vietnam with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Vietnam?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Vietnam from Seattle.

I’m not ready to book a flight from Seattle to Vietnam right now. Can momondo alert me if prices change?

Price alerts on flights to Vietnam from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.