What airlines fly to Vietnam?

ANA, United Airlines and Japan Airlines are the top three most popular airlines that fly to Vietnam from St. Louis according to our data. ANA is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Vietnam. Keep in mind that there are 9 different airlines that fly to Vietnam on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Lambert-St Louis to Vietnam?

Japan Airlines, United Airlines, and Delta are the most popular carriers operating from Lambert-St Louis to Vietnam

When did momondo last update prices for flights from Lambert-St Louis Airport to Vietnam?

Prices for flights from Lambert-St Louis Airport to Vietnam are updated daily.

How many operators does momondo search for flights from Lambert-St Louis Airport to Vietnam?

As of September 2025, there are 9 operators available to choose from for flights from Lambert-St Louis Airport to Vietnam.

How old do you have to be to fly from Lambert-St Louis Airport to Vietnam?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Vietnam.

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

The required travel and health documents for your Vietnam trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Vietnam. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$469 Cheap Flights from St. Louis to Vietnam in 2025/26

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Find the cheapest flights from St. Louis to Vietnam

Round-trip

One-way

Last minute

Cheap round-trip flights

6:30 am - 10:55 pmSTL-SGN

28h 25m3 stops

11:05 pm - 3:50 pmSGN-STL

29h 45m2 stops

$924United Airlines

Find Deal

Wed, Oct 29 - Wed, Nov 19

7:00 am - 10:15 pmSTL-SGN

26h 15m2 stops

7:50 am - 10:59 pmSGN-STL

28h 09m2 stops

$927American Airlines

Find Deal

Wed, Nov 5 - Wed, Nov 19

2:55 pm - 4:50 pmSTL-SGN

36h 55m2 stops

5:50 pm - 1:52 pmSGN-STL

33h 02m2 stops

$929China Airlines

Find Deal

Thu, Jan 15 - Thu, Feb 5

6:43 pm - 10:55 pmSTL-SGN

40h 12m3 stops

7:30 am - 10:51 amSGN-STL

40h 21m2 stops

$933United Airlines

Find Deal

Tue, Oct 28 - Thu, Nov 6

2:55 pm - 9:10 amSTL-DAD

29h 15m2 stops

10:20 am - 1:52 pmDAD-STL

40h 32m2 stops

$952China Airlines

Find Deal

Tue, Jan 13 - Thu, Jan 22

4:14 pm - 10:00 pmSTL-SGN

40h 46m2 stops

1:55 am - 3:18 pmSGN-STL

50h 23m2 stops

$985EVA Air

Find Deal

Mon, Nov 3 - Tue, Nov 18

2:55 pm - 10:00 pmSTL-SGN

42h 05m2 stops

1:55 am - 1:52 pmSGN-STL

48h 57m2 stops

$986EVA Air

Find Deal

Thu, Jan 15 - Wed, Feb 4

7:05 am - 9:05 pmSTL-DAD

50h 00m2 stops

10:55 pm - 12:24 amDAD-STL

37h 29m2 stops

$1,491Delta

Find Deal

Sat, Oct 11 - Wed, Oct 15

6:30 am - 7:20 amSTL-DAD

35h 50m3 stops

1:05 am - 7:27 pmDAD-STL

31h 22m3 stops

$2,428ANA

Find Deal

Tue, Jan 13 - Wed, Jan 21

1:15 pm - 1:05 pmSTL-DAD

58h 50m3 stops

12:30 am - 10:27 amDAD-STL

46h 57m2 stops

$3,192ANA

Find Deal

Tue, Jan 6 - Tue, Feb 24

United Airlines flights from St. Louis to Vietnam

Our best United Airlines deals on St. Louis to Vietnam flight tickets

United Airlines

Oct 29

STL6:30 amLambert-St Louis

28h 25m

3 stops

SGN10:55 pmHo Chi Minh City

Nov 19

SGN11:05 pmHo Chi Minh City

29h 45m

2 stops

STL3:50 pmLambert-St Louis

$924

Find similar

United Airlines

Oct 28

STL6:43 pmLambert-St Louis

40h 12m

3 stops

SGN10:55 pmHo Chi Minh City

Nov 6

SGN7:30 amHo Chi Minh City

40h 21m

2 stops

STL10:51 amLambert-St Louis

$933

Find similar

United Airlines

Oct 29

STL6:30 amLambert-St Louis

28h 25m

3 stops

SGN10:55 pmHo Chi Minh City

Nov 19

SGN6:00 amHo Chi Minh City

25h 47m

3 stops

STL6:47 pmLambert-St Louis

$935

Find similar

Air Canada flights from St. Louis to Vietnam

Our best Air Canada deals on St. Louis to Vietnam flight tickets

Air Canada

Sep 20

STL4:05 pmLambert-St Louis

44h 10m

2 stops

SGN12:15 amHo Chi Minh City

Sep 23

SGN12:05 amHo Chi Minh City

51h 13m

2 stops

STL3:18 pmLambert-St Louis

$1,639

Find similar

Air Canada

Sep 20

STL1:30 pmLambert-St Louis

46h 45m

2 stops

SGN12:15 amHo Chi Minh City

Sep 23

SGN12:05 amHo Chi Minh City

51h 13m

2 stops

STL3:18 pmLambert-St Louis

$1,749

Find similar

Air Canada

Sep 20

STL4:05 pmLambert-St Louis

44h 10m

2 stops

SGN12:15 amHo Chi Minh City

Sep 23

SGN12:05 amHo Chi Minh City

51h 13m

2 stops

STL3:18 pmLambert-St Louis

$1,756

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Wed 10/29

6:30 am-10:55 pm

3 stops28h 25m

Ho Chi Minh City

Wed 11/19

11:05 pm-3:50 pm

2 stops29h 45m

$924

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Wed 11/5

7:00 am-10:15 pm

2 stops26h 15m

Ho Chi Minh City

Wed 11/19

7:50 am-10:59 pm

2 stops28h 09m

$927

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Thu 1/15

2:55 pm-4:50 pm

2 stops36h 55m

Ho Chi Minh City

Thu 2/5

5:50 pm-1:52 pm

2 stops33h 02m

$929

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Tue 10/28

6:43 pm-10:55 pm

3 stops40h 12m

Ho Chi Minh City

Thu 11/6

7:30 am-10:51 am

2 stops40h 21m

$933

St. LouisDa Nang

STL - DAD

STLDAD

Lambert-St Louis

Tue 1/13

2:55 pm-9:10 am

2 stops29h 15m

Da Nang

Thu 1/22

10:20 am-1:52 pm

2 stops40h 32m

$952

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Mon 11/3

4:14 pm-10:00 pm

2 stops40h 46m

Ho Chi Minh City

Tue 11/18

1:55 am-3:18 pm

2 stops50h 23m

$985

St. LouisHo Chi Minh City

STL - SGN

STLSGN

Lambert-St Louis

Thu 1/15

2:55 pm-10:00 pm

2 stops42h 05m

Ho Chi Minh City

Wed 2/4

1:55 am-1:52 pm

2 stops48h 57m

$986

St. LouisDa Nang

STL - DAD

STLDAD

Lambert-St Louis

Sat 10/11

7:05 am-9:05 pm

2 stops50h 00m

Da Nang

Wed 10/15

10:55 pm-12:24 am

2 stops37h 29m

$1,491

St. LouisDa Nang

STL - DAD

STLDAD

Lambert-St Louis

Tue 1/13

6:30 am-7:20 am

3 stops35h 50m

Da Nang

Wed 1/21

1:05 am-7:27 pm

3 stops31h 22m

$2,428

St. LouisDa Nang

STL - DAD

STLDAD

Lambert-St Louis

Tue 1/6

1:15 pm-1:05 pm

3 stops58h 50m

Da Nang

Tue 2/24

12:30 am-10:27 am

2 stops46h 57m

$3,192

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 St. Louis 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 November is, on average, the cheapest month to fly to Vietnam from St. Louis, with most prices found around $1,017. If you don’t want to visit Vietnam in November, then you should wait until September to fly from St. Louis, when ticket prices are also cheap, with an average price of $1,023.

What is the cheapest day to depart on your flight to Vietnam?

According to our data, Tuesday is the cheapest day to fly to Vietnam from St. Louis. The lowest ticket price found for a Tuesday departure recently was $1,258. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Vietnam on Friday is $1,572.

What is the cheapest time of day to depart on your flight to Vietnam?

Flying to Vietnam from St. Louis in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,256 when looking at flights departing in the afternoon. At noon is when there is more demand to fly to Vietnam, so prices are often more expensive at around $1,499 per ticket.

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

You are more likely to see cheaper flights to Vietnam from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Vietnam for around $1,274 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Vietnam from St. Louis for as low as $1,099 on momondo.

Cheap St. Louis to Vietnam flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Vietnam

Direct flights	None

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

Search flight deals

When did momondo last update prices for flights from Lambert-St Louis Airport to Vietnam?
Prices for flights from Lambert-St Louis Airport to Vietnam are updated daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Vietnam?
As of September 2025, there are 9 operators available to choose from for flights from Lambert-St Louis Airport to Vietnam.
How old do you have to be to fly from Lambert-St Louis Airport to Vietnam?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Vietnam.
What documentation or ID do you need to fly to Vietnam?
The required travel and health documents for your Vietnam trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Vietnam. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from St. Louis to Vietnam

Compare and see reviews for airlines that fly from St. Louis to Vietnam with momondo

Airline	Rating	Free Cancellation	Price
Korean Air	PriceFrom $761	Free Cancellation	Rating 8.4 1,140 reviews	Search Korean Air flights
American Airlines	PriceFrom $903	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Cathay Pacific	PriceFrom $915	Free Cancellation	Rating 7.6 994 reviews	Search Cathay Pacific flights
Delta	PriceFrom $920	Free Cancellation	Rating 7.9 7,957 reviews	Search Delta flights
Japan Airlines	PriceFrom $942	Free Cancellation	Rating 8.3 1,559 reviews	Search Japan Airlines flights
ANA	PriceFrom $987	Free Cancellation	Rating 8.4 963 reviews	Search ANA flights
United Airlines	PriceFrom $996	Free Cancellation	Rating 7.4 8,924 reviews	Search United Airlines flights
EVA Air	PriceFrom $1,193	Free Cancellation	Rating 8.4 1,236 reviews	Search EVA Air flights
Air Canada	PriceFrom $1,437	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Vietnam?

It is quick and easy to find St. Louis to Vietnam flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Vietnam that suits you.

Can I find flights from St. Louis to Vietnam with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Vietnam from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Vietnam?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Vietnam.

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

Of course. momondo tracks the price of St. Louis to Vietnam flights. All you need is a valid email address and we will do the rest; it is that quick and easy.