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

Cathay Pacific, EVA Air, and Qatar Airways are the most popular carriers operating from Vietnam to Lambert-St Louis

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

Prices for flights from Vietnam to Lambert-St Louis Airport were last updated today.

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

As of September 2025, there is 1 operator available to choose from for flights from Vietnam to Lambert-St Louis Airport.

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

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 Vietnam to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$526 Cheap Flights from Vietnam to St. Louis in 2025/26

1 adult

0 bags

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Find the cheapest flights from Vietnam to St. Louis

Round-trip

One-way

Recent round-trip flight deals from Vietnam to St. Louis

6:00 am - 9:00 pmSGN-STL

28h 00m3 stops

4:39 pm - 10:55 pmSTL-SGN

41h 16m3 stops

$1,205United Airlines

Find Deal

Wed, Feb 25 - Sun, Mar 1

11:35 am - 11:08 pmSGN-STL

24h 33m2 stops

11:18 am - 6:35 pmSTL-SGN

42h 17m2 stops

$1,206Cathay Pacific

Find Deal

Wed, Feb 25 - Sun, Mar 1

6:00 am - 10:14 pmSGN-STL

29h 14m3 stops

7:41 am - 12:15 amSTL-SGN

27h 34m2 stops

$1,209United Airlines

Find Deal

Wed, Feb 25 - Sun, Mar 1

United Airlines flights from Vietnam to St. Louis

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

United Airlines

Feb 25

SGN6:00 amHo Chi Minh City

28h 00m

3 stops

STL9:00 pmLambert-St Louis

Mar 1

STL4:39 pmLambert-St Louis

41h 16m

3 stops

SGN10:55 pmHo Chi Minh City

$1,205

Find similar

United Airlines

Feb 25

SGN6:00 amHo Chi Minh City

29h 14m

3 stops

STL10:14 pmLambert-St Louis

Mar 1

STL7:41 amLambert-St Louis

27h 34m

2 stops

SGN12:15 amHo Chi Minh City

$1,209

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Wed 2/25

6:00 am-9:00 pm

3 stops28h 00m

Lambert-St Louis

Sun 3/1

4:39 pm-10:55 pm

3 stops41h 16m

$1,205

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Wed 2/25

11:35 am-11:08 pm

2 stops24h 33m

Lambert-St Louis

Sun 3/1

11:18 am-6:35 pm

2 stops42h 17m

$1,206

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Wed 2/25

6:00 am-10:14 pm

3 stops29h 14m

Lambert-St Louis

Sun 3/1

7:41 am-12:15 am

2 stops27h 34m

$1,209

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Sun 11/9

9:00 am-8:12 pm

3 stops48h 12m

$526

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Sun 11/9

3:40 pm-3:18 pm

2 stops36h 38m

$603

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Thu 1/15

7:15 am-11:59 pm

2 stops29h 44m

$661

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Sun 12/14

7:35 pm-10:47 pm

2 stops40h 12m

$663

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Thu 1/15

5:35 pm-1:52 pm

3 stops57h 17m

$666

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Sun 12/14

12:45 pm-11:59 pm

2 stops48h 14m

$672

Ho Chi Minh CitySt. Louis

SGN - STL

SGNSTL

Ho Chi Minh City

Sat 12/13

1:55 am-11:59 pm

2 stops59h 04m

$674

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from Vietnam to St. Louis

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 day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $1,080. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $1,398. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Vietnam in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,113 when looking at flights departing in the evening. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $1,178 per ticket.

Cheap Vietnam to St. Louis flight deals and tips

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

Direct flights	None

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

Search flight deals

When did momondo last update prices for flights from Vietnam to Lambert-St Louis Airport?
Prices for flights from Vietnam to Lambert-St Louis Airport were last updated today.
How many operators does momondo search for flights from Vietnam to Lambert-St Louis Airport?
As of September 2025, there is 1 operator available to choose from for flights from Vietnam to Lambert-St Louis Airport.
How old do you have to be to fly from Vietnam to Lambert-St Louis Airport?
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 Vietnam to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Vietnam to St. Louis

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

Airline	Rating	Free Cancellation	Price
Japan Airlines	PriceFrom $906	Free Cancellation	Rating 8.3 1,559 reviews		Search Japan Airlines flights

St. Charles

Chesterfield

Hermann

Fairview Heights

Florissant

Maryland Heights

O'Fallon

Fenton

Collinsville

Wentzville

Alton

St. Peters

Farmington

Festus

Glencoe

Clayton

Edwardsville

Eureka

Litchfield

Shrewsbury

Why use momondo?

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

It is quick and easy to find Vietnam to St. Louis 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 St. Louis that suits you.

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

Yes. All flights to St. Louis from Vietnam on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Vietnam to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to St. Louis from Vietnam. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.